Commit Graph

754 Commits

Author SHA1 Message Date
Damien George
3fc7c8e35c stm32/usb: Include py/mpconfig.h instead of mpconfigboard.h.
Because py/mpconfig.h has header include guards.
2019-05-31 21:39:34 +10:00
Damien George
ff91b05cfa stm32/usb: Support up to 3 VCP interfaces on USB device peripheral.
To enable define MICROPY_HW_USB_CDC_NUM to 3.
2019-05-31 11:35:42 +10:00
Damien George
0c29502ad9 stm32/usb: Refactor CDC VCP code to enable N CDC interfaces.
The board config option MICROPY_HW_USB_ENABLE_CDC2 is now changed to
MICROPY_HW_USB_CDC_NUM, and the latter should be defined to the maximum
number of CDC interfaces to support (defaults to 1).
2019-05-30 21:11:04 +10:00
Damien George
0bb6b63e66 stm32/mboot/README: Fix some typos, describe bootloader and fwupdate.py. 2019-05-29 16:26:02 +10:00
Andrew Leech
66bcb5596a stm32/modmachine: In bootloader() disable caches before reset of periphs
Otherwise flushing and disabling the D-cache will give a hard-fault when
SDRAM is used.

Fixes #4818.
2019-05-29 15:50:17 +10:00
Andrew Leech
1470184bdd stm32/sdram: Update MPU settings to block invalid region, change attrs.
Set the active MPU region to the actual size of SDRAM configured and
invalidate the rest of the memory-mapped region, to prevent errors due to
CPU speculation.  Also update the attributes of the SDRAM region as per ST
recommendations, and change region numbers to avoid conflicts elsewhere in
the codebase (see eth usage).
2019-05-24 15:55:00 +10:00
Andrew Leech
4f44778728 stm32/sdcard: Add switch break to ensure only correct SD/MMC IRQ is run. 2019-05-23 21:55:31 +10:00
Damien George
c769da1aaa stm32/i2c: Support setting the I2C TIMINGR value via keyword arg.
On MCUs that have an I2C TIMINGR register, this can now be explicitly set
via the "timingr" keyword argument to the I2C constructor, for both
machine.I2C and pyb.I2C.  This allows to configure precise timing values
when the defaults are inadequate.
2019-05-21 13:45:17 +10:00
Damien George
ddc657658a stm32/machine_i2c: Simplify ROM initialisation of static HW I2C objects. 2019-05-21 12:38:34 +10:00
Andrew Leech
ed2b6ea0a8 stm32/i2c: Make timeout for hardware I2C configurable.
Previously the hardware I2C timeout was hard coded to 50ms which isn't
guaranteed to be enough depending on the clock stretching specs of the I2C
device(s) in use.

This patch ensures the hardware I2C implementation honors the existing
timeout argument passed to the machine.I2C constructor.  The default
timeout for software and hardware I2C is now 50ms.
2019-05-21 12:20:19 +10:00
Damien George
38ac697b45 stm32/machine_i2c: Update to support new C-level I2C API. 2019-05-20 15:04:29 +10:00
Damien George
1f63e9b701 stm32/adc: Fix VBAT_DIV to be 4 for STM32F411.
Fixes issue #4794.
2019-05-20 14:37:28 +10:00
Damien George
e1e3704aa1 stm32/modmachine: Create dedicated asm function to branch to bootloader.
Recent gcc versions (at least 9.1) give a warning about using "sp" in the
clobber list.  Such code is removed by this patch.  A dedicated function is
instead used to set SP and branch to the bootloader so the code has full
control over what happens.

Fixes issue #4785.
2019-05-17 17:20:43 +10:00
iabdalkader
746fcea7f8 stm32/boards/NUCLEO_H743ZI: Enable SPI3 on this board. 2019-05-15 16:08:10 +10:00
iabdalkader
1646eff864 stm32/irq: Fix IRQ_ENABLE_STATS stats config to work on all MCUs.
Only the M4 and M7 MCUs have an FPU and FPU_IRQn, and FPU_IRQn is not
always the last entry/IRQ number.
2019-05-15 16:04:01 +10:00
iabdalkader
07af74daef stm32/spi: Enable SPI IRQs and add IRQHandlers for H7 MCUs.
The H7 HAL uses SPI IRQs when the SPI is running in DMA mode.
2019-05-15 15:59:25 +10:00
iabdalkader
123c065131 stm32/dma: Always reset and configure the H7 DMA peripheral.
This is required for the H7 DMA to work.
2019-05-15 15:55:41 +10:00
iabdalkader
7359a9e2f2 stm32/dma: Initialise all members of DMA structs for H7 MCUs. 2019-05-13 12:57:44 +10:00
Andrew Leech
29865e3e58 stm32/rtc: Allow overriding startup timeouts from mpconfigboard. 2019-05-09 12:08:43 +10:00
Damien George
b8c74014e4 stm32/usbd_cdc_interface: Don't retransmit chars if USB is reconnected.
Before this change, if the USB was reconnected it was possible that some
characters in the TX buffer were retransmitted because tx_buf_ptr_out and
tx_buf_ptr_out_shadow were reset while tx_buf_ptr_in wasn't.  That
behaviour is fixed here by retaining the TX buffer state across reconnects.

Fixes issue #4761.
2019-05-08 12:45:24 +10:00
Damien George
97753a1bbc stm32: Move factory reset files and code to separate source file.
The new function factory_reset_make_files() populates the given filesystem
with the default factory files.  It is defined with weak linkage so it can
be overridden by a board.

This commit also brings some minor user-facing changes:

- boot.py is now no longer created unconditionally if it doesn't exist, it
  is now only created when the filesystem is formatted and the other files
  are populated (so, before, if the user deleted boot.py it would be
  recreated at next boot; now it won't be).

- pybcdc.inf and README.txt are only created if the board has USB, because
  they only really make sense if the filesystem is exposed via USB.
2019-05-07 13:59:51 +10:00
Damien George
34942d0a72 stm32/machine_uart: Change default UART timeout to 0, for non blocking.
It's more common to need non-blocking behaviour when reading from a UART,
rather than having a large timeout like 1000ms (the original behaviour).
With a large timeout it's 1) likely that the function will read forever if
characters keep trickling it; or 2) the function will unnecessarily wait
when characters come sporadically, eg at a REPL prompt.
2019-05-07 13:56:42 +10:00
Chris Mason
2a791170ce stm32/boards: Add NUCLEO_F413ZH board configuration.
The alternate function pin allocations are different to other NUCLEO-144
boards.  This is because the STM32F413 has a very high peripheral count:
10x UART, 5x SPI, 3x I2C, 3x CAN.  The pinout was chosen to expose all
these devices on separate pins except CAN3 which shares a pin with UART1
and SPI1 which shares pins with DAC.
2019-05-02 16:33:30 +10:00
Chris Mason
1b956ec817 stm32: Add support for F413 MCUs.
Includes:
- Support for CAN3.
- Support for UART9 and UART10.
- stm32f413xg.ld and stm32f413xh.ld linker scripts.
- stm32f413_af.csv alternate function mapping.
- startup_stm32f413xx.s because F413 has different interrupt vector table.
- Memory configuration with: 240K filesystem, 240K heap, 16K stack.
2019-05-02 16:26:53 +10:00
Damien George
a974f2dc6e stm32/flash: Fix bug computing page number for L432 page erase. 2019-05-02 14:53:26 +10:00
Damien George
3fbf32b947 stm32/powerctrl: Support changing frequency when HSI is clock source.
This patch makes pllvalues.py generate two tables: one for when HSI is used
and one for when HSE is used.  The correct table is then selected at
compile time via the existing MICROPY_HW_CLK_USE_HSI.
2019-05-02 13:00:00 +10:00
Damien George
cbeac903e8 stm32/main: Increase default UART REPL rx buffer from 64 to 260 bytes.
This allows the UART to buffer at least 256 bytes (taking into account the
extra byte needed by the ring buffer, and word alignment).
2019-05-01 14:53:21 +10:00
Damien George
ff0306dfa5 stm32/usb: Remove mp_hal_set_interrupt_char now that it's reset at boot. 2019-05-01 13:08:05 +10:00
Damien George
8031b7a25c stm32/powerctrl: Deselect PLLSAI as 48MHz src before turning off PLLSAI.
On the STM32F722 (at least, but STM32F767 is not affected) the CK48MSEL bit
must be deselected before PLLSAION is turned off, or else the 48MHz
peripherals (RNG, SDMMC, USB) may get stuck without a clock source.

In such "lock up" cases it seems that these peripherals are still being
clocked from the PLLSAI even though the CK48MSEL bit is turned off.  A hard
reset does not get them out of this stuck state.  Enabling the PLLSAI and
then disabling it does get them out.  A test case to see this is:

    import machine, pyb
    for i in range(100):
        machine.freq(122_000000)
        machine.freq(120_000000)
        print(i, [pyb.rng() for _ in range(4)])

On occasion the RNG will just return 0's, but will get fixed again on the
next loop (when PLLSAI is enabled by the change to a SYSCLK of 122MHz).

Fixes issue #4696.
2019-04-29 16:31:32 +10:00
Andrew Leech
70a28e3ad9 stm32/usb: Add USB device mode for VCP+VCP without MSC.
Selectable via pyb.usb_mode('VCP+VCP').
2019-04-28 21:31:47 +10:00
Damien George
0646e607b5 ports: Convert to use pyexec_file_if_exists() to execute boot/main.py.
The stm32 and nrf ports already had the behaviour that they would first
check if the script exists before executing it, and this patch makes all
other ports work the same way.  This helps when developing apps because
it's hard to tell (when unconditionally trying to execute the scripts) if
the resulting OSError at boot up comes from missing boot.py or main.py, or
from some other error.  And it's not really an error if these scripts don't
exist.
2019-04-26 15:22:14 +10:00
Damien George
f66c4cbfa6 stm32/usbdev: Make USB device descriptors at runtime rather than static. 2019-04-26 10:07:49 +10:00
Damien George
aa7b32c811 stm32/dac: Rework DAC driver to use direct register access.
This patch makes the DAC driver simpler and removes the need for the ST
HAL.  As part of it, new helper functions are added to the DMA driver,
which also use direct register access instead of the ST HAL.

Main changes to the DAC interface are:

- The DAC uPy object is no longer allocated dynamically on the heap,
  rather it's statically allocated and the same object is retrieved for
  subsequent uses of pyb.DAC(<id>).  This allows to access the DAC objects
  without resetting the DAC peripheral.  It also means that the DAC is only
  reset if explicitly passed initialisation parameters, like "bits" or
  "buffering".

- The DAC.noise() and DAC.triangle() methods now output a signal which is
  full scale (previously it was a fraction of the full output voltage).

- The DAC.write_timed() method is fixed so that it continues in the
  background when another peripheral (eg SPI) uses the DMA (previously the
  DAC would stop if another peripheral finished with the DMA and shut the
  DMA peripheral off completely).

Based on the above, the following backwards incompatibilities are
introduced:

- pyb.DAC(id) will now only reset the DAC the first time it is called,
  whereas previously each call to create a DAC object would reset the DAC.
  To get the old behaviour pass the bits parameter like: pyb.DAC(id, bits).

- DAC.noise() and DAC.triangle() are now full scale.  To get previous
  behaviour (to change the amplitude and offset) write to the DAC_CR (MAMP
  bits) and DAC_DHR12Rx registers manually.
2019-04-24 15:51:19 +10:00
Damien George
8402c26cfa stm32/powerctrl: Enable EIWUP to ensure RTC wakes device from standby. 2019-04-18 17:15:11 +10:00
Damien George
11657f2f20 stm32/system_stm32f0: Add support for using HSE and PLL as SYSCLK.
To configure the SYSCLK on an F0 enable one of:

    MICROPY_HW_CLK_USE_HSI48
    MICROPY_HW_CLK_USE_HSE
    MICROPY_HW_CLK_USE_BYPASS
2019-04-18 16:00:45 +10:00
Damien George
f1774fa049 stm32/system_stm32f0: Enable PWR clock on startup.
To be consistent with how F4/F7/H7/L4 works in system_stm32.c.  The power
control peripheral is needed at least for the RTC.
2019-04-18 15:36:59 +10:00
Damien George
194d6b6788 stm32/timer: Correctly initialise extended break settings on F7/H7/L4.
Fixes issue #4693.
2019-04-15 11:41:03 +10:00
Damien George
fd112239d6 stm32/rtc: Remove non-ASCII mu-character from source code comment.
And fix a typo in the comment on this line.
2019-04-12 11:32:24 +10:00
Damien George
fc9f2ff0cd stm32/rtc: Remove unused LSE detection code. 2019-04-11 12:14:21 +10:00
Damien George
46e5d6b889 stm32/rtc: Add auto-LSE-bypass detection with fallback to LSE then LSI.
If MICROPY_HW_RTC_USE_BYPASS is enabled the RTC startup goes as follows:
- RTC is started with LSE in bypass mode to begin with
- if that fails to start (after a given timeout) then LSE is reconfigured
  in non-bypass
- if that fails to start then RTC is switched to LSI
2019-04-11 12:09:21 +10:00
Damien George
358364b45e stm32/boards/NUCLEO_L432KC: Disable complex nos and default frozen mods.
To save space, since this board only hase 256k of flash.
2019-04-09 11:23:08 +10:00
Damien George
4831e38c7e stm32/boards/NUCLEO_H743ZI: Add config options to support mboot. 2019-04-08 14:34:37 +10:00
Damien George
fd13ce5e60 stm32/mboot: Add support for H7 MCUs, with H743 flash layout. 2019-04-08 14:33:57 +10:00
Damien George
ae1e18a346 stm32/usbd_conf: Add support for USB HS peripheral on H7 MCUs. 2019-04-08 14:30:16 +10:00
Damien George
2c3fa4ad82 stm32/i2cslave: Add support for H7 MCUs. 2019-04-08 14:28:45 +10:00
Damien George
fd523c53c3 stm32/network_wiznet5k: Automatically set MAC if device doesn't have one 2019-04-05 22:37:06 +11:00
Damien George
4f936afc44 stm32/network_wiznet5k: Add ability to set the MAC address. 2019-04-05 22:35:04 +11:00
Damien George
4410efc1e3 stm32/network_wiznet5k: Add ability to trace Ethernet TX and RX frames.
Via: nic.config(trace=2|4)
2019-04-05 22:33:49 +11:00
Damien George
83f3c29d36 stm32/moduos: Allow to compile again without USB enabled. 2019-04-01 17:11:39 +11:00
Damien George
7ce2a08231 stm32: Add support for MMC driver, exposed via pyb.MMCard class.
Enable it via MICROPY_HW_ENABLE_MMCARD.
2019-04-01 17:04:43 +11:00
Damien George
9670b26526 stm32: Rename MICROPY_HW_HAS_SDCARD to MICROPY_HW_ENABLE_SDCARD.
For consistency with the majority of other MICROPY_HW_ENABLE_xxx macros.
2019-04-01 15:21:26 +11:00
Damien George
7b5bf5f6fd stm32/uart: Handle correctly the char overrun case of RXNE=0 and ORE=1.
Fixes issue #3375.
2019-04-01 13:40:35 +11:00
roland van straten
edd0e0f93d stm32/timer: Expose the PWM BRK capability of Timer 1 and 8.
The break mode is configurable via the 'brk' keyword to the Timer
constructor and init method.  It's disabled by default.
2019-04-01 13:30:37 +11:00
Andrew Leech
9d6f70f715 stm32: Make default USB_VCP stream go through uos.dupterm for main REPL.
Use uos.dupterm for REPL configuration of the main USB_VCP(0) stream on
dupterm slot 1, if USB is enabled.  This means dupterm can also be used to
disable the boot REPL port if desired, via uos.dupterm(None, 1).

For efficiency this adds a simple hook to the global uos.dupterm code to
work with streams that are known to be native streams.
2019-04-01 13:04:05 +11:00
Boris Vinogradov
6947dff7da stm32/Makefile: Allow to override CROSS_COMPILE with included Makefile. 2019-03-29 11:34:05 +11:00
Boris Vinogradov
1a608ce1e8 stm32/boards/STM32L476DISC: Enable servo support on STM32L476DISC board. 2019-03-28 15:35:58 +11:00
Damien George
781947afdc stm32/mpconfigport.h: Remove malloc/free/realloc helper macros.
These macros are unused, and they can conflict with other entities by the
same name.  If needed they can be provided as static inline functions, or
just functions.

Fixes issue #4559.
2019-03-26 18:42:19 +11:00
roland van straten
d396a7e10d stm32/system_stm32: Provide default value for HSI calibration.
If HSI is used the calibration value must be valid.  Fixes #4596.
2019-03-26 17:10:21 +11:00
Dave Hylands
ec6e62efc2 stm32/mboot: Set USE_MBOOT=1 by default in the Makefile.
This allows boards that need USE_MBOOT to be built properly whether or not
USE_MBOOT=1 is specified when building mboot.
2019-03-18 14:01:43 +11:00
roland van straten
c9eb7eb449 stm32/stm32_it: Guard UART7_IRQHandler with check for UART7 define.
All STM32 with a UART7 also have a UART8 and vice versa, but this change
improves readability and allows for them to be independent in the future.
2019-03-14 14:02:21 +11:00
Damien George
c7d19dc0ad ports/{stm32,esp8266}: Set mpy-cross native arch for frozen native code. 2019-03-14 12:22:49 +11:00
Andrew Leech
5688c9ba09 stm32/usb: Allow to override USB strings & VID/PID in app and mboot.
The override #define's should go in the board's mpconfigboard.h file.
2019-03-08 23:29:15 +11:00
Andrew Leech
0c60cb1fc4 stm32/qspi: Set pin speed to very-high and allow to config some options.
The default speed of the QSPI interface is 72Mhz whereas the standard AF
pin speed (high) is only rated to 50Mhz, so increase speed to very-high.
2019-03-08 23:17:50 +11:00
Andrew Leech
89ff506513 py: Update and rework build system for including external C modules.
How to use this feature is documented in docs/develop/cmodules.rst.
2019-03-08 22:58:42 +11:00
Damien George
e4ac104b7f stm32: Allow to build with threading with the GIL disabled. 2019-03-08 22:29:54 +11:00
Jim Mussared
f2ebee9cf1 stm32/mboot: Update to match latest oofatfs version.
See corresponding commit b5f33ac2cb
2019-03-07 15:22:16 +11:00
Damien George
b5f33ac2cb ports: Update to work with new oofatfs version. 2019-03-05 15:56:39 +11:00
Francisco J. Manno
f938e70c69 stm32: Add compile-time option to use HSI as clock source.
To use HSI instead of HSE define MICROPY_HW_CLK_USE_HSI as 1 in the board
configuration file.  The default is to use HSE.

HSI has been made the default for the NUCLEO_F401RE board to serve as an
example, and because early revisions of this board need a hardware
modification to get HSE working.
2019-03-05 15:49:08 +11:00
Damien George
e61862d063 stm32/boards: Update to use new build config for lwip component. 2019-03-04 23:34:03 +11:00
Damien George
78fe979d7d stm32: Use global lwip build config and support building without lwip. 2019-03-04 23:33:02 +11:00
Damien George
84479569de stm32/boards/STM32F769DISC: Use external QSPI flash to store some code.
This demonstrates how to use external QSPI flash in XIP (execute in place)
mode.  The default configuration has all extmod/ code placed into external
QSPI flash, but other code can easily be put there by modifying the custom
f769_qspi.ld script.
2019-03-04 22:40:15 +11:00
Damien George
c8bbf2c170 stm32/Makefile: Allow a board to specify its linker sections for FW.
A board can now use the make variables TEXT0_SECTIONS and TEXT1_SECTIONS to
specify the linker sections that should go in its firmware.  Defaults are
provided which give the existing behaviour.
2019-03-04 22:26:55 +11:00
Damien George
f8f2724297 stm32/qspi: Enable sample shift and disable timeout counter.
This makes the QSPI more robust, in particular the timeout counter should
not be used with memory mapped mode (see F7 errata).
2019-03-01 16:15:14 +11:00
Damien George
823b31e528 stm32/boards/NUCLEO_F429ZI: Enable lwIP and Ethernet peripheral. 2019-02-26 23:32:19 +11:00
Damien George
ed0a530614 stm32/boards/STM32F769DISC: Enable lwIP and Ethernet peripheral. 2019-02-26 23:32:19 +11:00
Damien George
b3513f54d3 stm32/boards/STM32F7DISC: Enable lwIP and Ethernet peripheral. 2019-02-26 23:32:19 +11:00
Damien George
8daec24168 stm32/boards/NUCLEO_F767ZI: Enable lwIP and Ethernet peripheral. 2019-02-26 23:32:19 +11:00
Damien George
ac3e2f380d stm32/modnetwork: Don't call NIC callback if it's NULL. 2019-02-26 23:32:19 +11:00
Damien George
08a24c5f41 stm32/mpconfigport.h: Enable lwIP concurrency protection mechanism. 2019-02-26 23:32:19 +11:00
Damien George
c55709bf29 stm32/network_lan: Add high-level network.LAN interface to ETH driver. 2019-02-26 23:32:19 +11:00
Damien George
c950a1a35d stm32/eth: Add low-level Ethernet MAC driver. 2019-02-26 23:32:19 +11:00
Damien George
cc63e19332 stm32/mphalport: Add mp_hal_get_mac() helper function. 2019-02-26 23:32:07 +11:00
Damien George
75a35448e1 stm32/boards/NUCLEO_F767ZI: Fix up comments about HCLK computation. 2019-02-26 22:44:27 +11:00
Andrew Leech
8ed4a28dae stm32/sdram: Increase GPIO speed for SDRAM interface to "very high".
Currently all usages of mp_hal_pin_config_alt_static() set the pin speed to
"high" (50Mhz).  The SDRAM interface typically runs much faster than this
so should be set to the maximum pin speed.

This commit adds mp_hal_pin_config_alt_static_speed() which allows setting
the pin speed along with the other alternate function details.
2019-02-20 16:54:32 +11:00
Dave Hylands
a270cf280b stm32/stm32_it: Fix RTC IRQ handler to handle all EXTI IRQs on F0 MCUs. 2019-02-19 15:17:47 +11:00
Dave Hylands
67b326d97e stm32/extint: Remove unused (and incorrect) EXTI defines. 2019-02-19 15:17:32 +11:00
Dave Hylands
3d17d9b578 stm32/extint: Add non-GPIO EXTI IRQ sources for F0. 2019-02-19 15:17:28 +11:00
Dave Hylands
92fec603d0 stm32/make-stmconst.py: Improve regex to parse more constants.
A few RTC constants weren't being parsed properly due to whitespace
differences, and this patch makes certain whitespace optional.  Changes
made:

- allow for no space between /*!< and EXTI, eg for:
  __IO uint32_t IMR; /*!<EXTI Interrupt mask register, Address offset: 0x00 */

- allow for no space between semicolon and start of comment, eg for:
  __IO uint32_t ALRMASSR;/*!< RTC alarm A sub second register, Address offset: 0x44 */
2019-02-19 15:17:28 +11:00
Dave Hylands
9441f4b682 stm32/extint: Fix RTC Alarm/FS USB EXTI constants for L4. 2019-02-19 15:17:28 +11:00
Dave Hylands
363900be5d stm32/extint: Fix ExtInt to work with non-GPIO pins. 2019-02-19 15:17:20 +11:00
Damien George
c65e5c88b8 stm32/boards/stm32f429.ld: Increase uPy heap size by 64k for F429 MCU.
The F429 has 256k total RAM, with 64k already set aside for flash write
cache, so the uPy heap can be increased this much.
2019-02-18 13:18:59 +11:00
Damien George
c551169bd8 stm32/mboot: Add hook to run board-specific code early on startup. 2019-02-15 15:34:05 +11:00
Damien George
65b1fefa31 stm32/modmachine: Add ability to pass through user data to mboot. 2019-02-15 15:10:04 +11:00
Damien George
3669198403 stm32/mboot: Add support script which can program mboot and application. 2019-02-15 15:09:59 +11:00
Damien George
3d0c31e60e stm32/mboot: Move some BSS vars to new section that isn't zeroed out.
Zeroing out data on startup takes time and is not necessary for certain
variables.  So provide a declaration for such variables and use it.
2019-02-15 15:09:54 +11:00
Damien George
ff04b78ffd stm32/mboot: Add support for loading gzip'd firmware from a filesystem.
This adds support to mboot to load and program application firmware from
a .dfu.gz file on the board's filesystem.  See mboot/README.md for details.
2019-02-15 15:09:48 +11:00
Andrew Leech
4daee31706 stm32/qspi: Use static af functions for pin configuration.
This allows qspi pin configuration to work on any supported platform.
2019-02-14 13:42:08 +11:00
Damien George
be4e5b1f87 stm32/mboot/mphalport.h: Include genhdr/pins.h for access to pin names.
So that mboot configuration can use names like pyb_pin_X1.
2019-02-14 13:39:13 +11:00
Damien George
f38397ba8d stm32/mboot/Makefile: Generate all pin header files from board pins.csv. 2019-02-14 13:36:32 +11:00
Damien George
7b2dc96251 stm32/boards/make-pins.py: Add cmdline options to support use by mboot. 2019-02-14 13:35:39 +11:00
Jolatomme
d1acca3c71 stm32/boards/NUCLEO_L476RG: Add support for RNG, DAC and CAN1.
PLLQ is changed to get CAN working, and I2C1 pins are changed to those
prescribed by the board.
2019-02-14 00:28:28 +11:00
Damien George
26a1ae295f stm32/mboot/Makefile: Support specifying BOARD_DIR for custom board. 2019-02-14 00:01:14 +11:00
Mike Causer
812969d615 all: Change PYB message prefix to MPY.
Replaces "PYB: soft reboot" with "MPY: soft reboot", etc.

Having a consistent prefix across ports reduces the difference between
ports, which is a general goal.  And this change won't break pyboard.py
because that tool only looks for "soft reboot".
2019-02-12 15:18:33 +11:00
Damien George
6e30f96b0b ports: Convert legacy uppercase macro names to lowercase. 2019-02-12 14:54:51 +11:00
Damien George
019433a17e stm32/pendsv: Fix inline asm constant and prefix with # character. 2019-02-12 14:50:27 +11:00
Damien George
3058d46892 stm32/gccollect: Use gchelper.h header instead of explicit declaration. 2019-02-12 14:38:30 +11:00
Damien George
e6d97e8a0b stm32: Move gchelper assembler code to lib/utils for use by other ports. 2019-02-12 14:11:21 +11:00
Damien George
b546e4b7e9 stm32/pendsv: Fix NULL pointer when calling pendsv dispatch function. 2019-02-08 16:38:09 +11:00
Damien George
800871c0cb stm32/modnetwork: Change lwIP polling to be based on background systick. 2019-02-08 16:38:09 +11:00
Damien George
4d214edae8 stm32/systick: Provide better compile-time configurability of slots. 2019-02-08 15:31:02 +11:00
Damien George
18cfa156d6 stm32/pendsv: Add ability to schedule callbacks at pendsv IRQ level. 2019-02-08 01:20:13 +11:00
Damien George
b178958c07 stm32/pendsv: Clean up pendsv IRQ handler and eliminate duplicate code. 2019-02-08 01:20:13 +11:00
Damien George
1bcf4afb10 stm32/systick: Make periodic systick callbacks use a cyclic func table.
Instead of checking each callback (currently storage and dma) explicitly
for each SysTick IRQ, use a simple circular function table indexed by the
lower bits of the millisecond tick counter.  This allows callbacks to be
easily enabled/disabled at runtime, and scales well to a large number of
callbacks.
2019-02-08 01:20:13 +11:00
Damien George
5fbda53d3c stm32/systick: Rename sys_tick_XXX functions to systick_XXX. 2019-02-08 01:20:09 +11:00
Damien George
1669e049de stm32/boards/STM32F769DISC: Configure for use with mboot by default.
This is a good board to demonstrate the use of Mboot because it only has a
USB HS port exposed so the native ST DFU mode cannot be used.  With Mboot
this port can be used.
2019-02-07 16:28:01 +11:00
Damien George
be1b1835c3 stm32/boards/STM32F769DISC: Support the use of USB HS with external PHY. 2019-02-07 16:26:46 +11:00
Damien George
b26046aca2 stm32/modmachine: Make bootloader() enter custom loader if it's enabled.
If a custom bootloader is enabled (eg mboot) then machine.bootloader() will
now enter that loader.  To get the original ST DFU loader pass any argument
to the function, like machine.bootloader(1).
2019-02-07 16:13:57 +11:00
Damien George
ab423f2969 stm32/usbd_conf: Fully support USB HS with external PHY. 2019-02-07 16:09:25 +11:00
Damien George
9f9c5c19b0 stm32/usb: Use USB HS as main USB device regardless of USB_HS_IN_FS. 2019-02-07 16:09:08 +11:00
Damien George
03a8b1cc50 stm32/mboot: Allow deploying via deploy-stlink. 2019-02-07 16:06:05 +11:00
Damien George
a81cb3576b stm32/mboot: Add support for GPIO ports G, H, I and J. 2019-02-07 16:04:48 +11:00
Damien George
39eb1e9f81 stm32/mboot: Add support for STM32F769 MCUs. 2019-02-07 16:04:06 +11:00
Damien George
9570297dd1 stm32/mboot: Use USB HS as main USB device regardless of USB_HS_IN_FS. 2019-02-07 16:03:18 +11:00
Damien George
43a894fb48 stm32/adc: Add basic support for ADC on a pin on STM32H7 MCUs. 2019-02-06 13:35:28 +11:00
Damien George
b367c425e4 stm32/boards/stm32h743_af.csv: Add ADC entries to pin capability table. 2019-02-06 13:34:53 +11:00
Damien George
02682d52ce stm32/boards/make-pins.py: Add basic support for STM32H7 ADC periphs. 2019-02-06 13:34:23 +11:00
Andrew Leech
67689bfd7e stm32/usb: Add flow control option for USB VCP data received from host.
It's off by default and can be enabled at run-time with:

    pyb.USB_VCP().init(flow=pyb.USB_VCP.RTS)
2019-01-31 23:31:26 +11:00
Damien George
86f06d6a87 stm32/sdcard: Don't use SD clock bypass on F7 MCUs.
With clock bypass enabled the attached SD card is clocked at the maximum
48MHz.  But some SD cards are unreliable at these rates.  Although it's
nice to have high speed transfers it's more important that the transfers
are reliable for all cards.  So disable this clock bypass option.
2019-01-31 12:49:48 +11:00
Damien George
e5509a910f stm32/mboot: Add option to autodetect the USB port that DFU uses.
Enable in mpconfigboard.h via #define MBOOT_USB_AUTODETECT_USB (1).
Requires MICROPY_HW_USB_FS and MICROPY_HW_USB_HS to be enabled as well.
2019-01-31 12:05:39 +11:00
Damien George
4bed17e786 stm32/boards/stm32f429_af.csv: Fix typos in UART defs Tx->TX and Rx->RX.
Fixes issue #4445.
2019-01-31 01:02:42 +11:00
Damien George
38022ddb2c stm32/main: Make board-defined UART REPL use a static object and buffer.
This way the UART REPL does not need the MicroPython heap and exists
outside the MicroPython runtime, allowing characters to still be received
during a soft reset.
2019-01-28 22:56:55 +11:00
Damien George
4caf5b2358 stm32/usbdev: Add USB config option for max power drawn by the board.
The new compile-time option is MICROPY_HW_USB_MAX_POWER_MA.  Set this in
the board configuration file to the maximum current in mA that the board
will draw over USB.  The default is 500mA.
2019-01-27 14:02:10 +11:00
Damien George
7d8db42d17 stm32/usbdev: Add USB config option for board being self powered.
The new compile-time option is MICROPY_HW_USB_SELF_POWERED.  Set this
option to 1 in the board configuration file to indicate that the USB device
is self powered.  This option is disabled by default (previous behaviour).
2019-01-27 13:52:43 +11:00
Damien George
c2886868b9 stm32/rtc: Check RTCEN=1 when testing if RTC is already running on boot.
It can be that LSEON and LSERDY are set yet the RTC is not enabled (this
can happen for example when coming out of the ST DFU mode on an F405 with
the RTC not previously initialised).  In such a case the RTC is never
started because the code thinks it's already running.  This patch fixes
this case by always checking if RTCEN is set when booting up (and also
testing for a valid RTCSEL value in the case of using an LSE).
2019-01-27 13:21:31 +11:00
Damien George
285d265eee stm32: Implement machine.lightsleep(). 2019-01-27 11:13:32 +11:00
Damien George
3431ea7205 stm32/main: Make thread and FS state static and exclude when not needed.
Without the static qualifier these objects will be kept by the linker even
if they are unused.  So this patch saves some RAM when these features are
unused by a board.
2019-01-11 01:52:17 +11:00
Damien George
5b66c7b712 stm32/wdt: Make singleton WDT object const so it goes in ROM. 2019-01-11 01:51:57 +11:00
Damien George
b33f108cde stm32/sdcard: Properly reset SD periph when SDMMC2 is used on H7 MCUs. 2018-12-30 01:28:34 +11:00
roland
4d8504425a stm32/modmachine: Fix reset_cause to correctly give DEEPSLEEP on L4 MCU.
Before this fix it returned SOFT_RESET after waking from a deepsleep
(standby).
2018-12-30 01:11:25 +11:00
Damien George
f334816df0 stm32/uart: Make sure user IRQs are handled even with a keyboard intr. 2018-12-30 01:03:22 +11:00
Damien George
7bdbea9a0c stm32/uart: Clear overrun error flag after reading RX data register.
On MCUs other than F4 the ORE (overrun error) flag needs to be cleared
independently of clearing RXNE, even though both are wired to trigger the
same RXNE IRQ.  In the case that an overrun occurred it's necessary to
explicitly clear the ORE flag or else the RXNE interrupt will keep firing.
2018-12-30 00:59:16 +11:00
Damien George
0d860fdcd0 stm32/uart: Always enable global UART IRQ handler on init.
Otherwise IRQs may not be enabled for the user UART.irq() handler.  In
particular this fixes the user IRQ_RXIDLE interrupt so that it triggers
even when there is no RX buffer.
2018-12-29 22:44:41 +11:00
Damien George
a5f7a3022d stm32/uart: Fix uart_rx_any in case of no buffer to return 0 or 1. 2018-12-29 22:43:35 +11:00
Tobias Badertscher
372e7a4dc6 stm32: Implement UART.irq() method with initial support for RX idle IRQ. 2018-12-29 17:21:37 +11:00
Andrew Leech
ce0c581179 stm32/main: Add board config option to enable/disable mounting SD card.
The new option MICROPY_HW_SDCARD_MOUNT_AT_BOOT can now be defined to 0 in
mpconfigboard.h to allow SD hardware to be enabled but not auto-mounted at
boot.  This feature is enabled by default to retain previous behaviour.

Previously, if an SD card is enabled in hardware it is also used to boot
from.  While this can be disabled with a SKIPSD file on internal flash,
this wont be available at first boot or if the internal flash gets
corrupted.
2018-12-22 01:30:47 +11:00
Damien George
5146e79490 stm32/boards/NUCLEO_L432KC: Specify L4 OpenOCD config file for this MCU. 2018-12-13 13:45:16 +11:00
Damien George
59f409a787 stm32/boards: Allow OpenOCD stm_flash procedure to accept single FW img.
To support deplop-openocd on target boards that use TEXT0_ADDR only and
have their firmware in a single binary image.
2018-12-13 13:43:10 +11:00
Damien George
1db55381b6 stm32/adc: Support 16-bit ADC configuration on H7 MCUs. 2018-12-12 12:51:46 +11:00
Damien George
6cab8daee0 stm32/adc: Increase ADC sampling time for internal sources on H7 MCUs. 2018-12-12 12:51:26 +11:00
Damien George
0555ada277 stm32/adc: Fix calibrated volt/temp readings on H7 by using 16bit scale. 2018-12-12 12:50:37 +11:00
Damien George
1b4031ed64 stm32/extint: Use correct EXTI channels on H7 MCUs for RTC events. 2018-12-12 12:49:23 +11:00
Damien George
dc23978dde stm32/uart: Add ability to have a static built-in UART object.
A static UART is useful for internal peripherals that require a UART and
need to persist outside the soft-reset loop.
2018-12-10 16:21:50 +11:00
Damien George
61ef031687 stm32/uart: Move config of char_width/char_mask to uart.c. 2018-12-10 16:21:50 +11:00
Damien George
6ea45277bf stm32/uart: For UART init, pass in params directly, not via HAL struct.
To provide a cleaner and more abstract C-level interface to the UART.
2018-12-10 16:21:50 +11:00
Damien George
e0c2432503 stm32/uart: Simplify deinit of UART, no need to call HAL.
The HAL just clears UE and then clears all the UART control registers.
2018-12-10 16:21:50 +11:00
Damien George
bc3f0dddac stm32/uart: Remove HAL's UART_HandleTypeDef from UART object struct.
This UART_HandleTypeDef is quite large (around 70 bytes in RAM needed for
each UART object) and is not needed: instead the state of the peripheral
held in its registers provides all the required information.
2018-12-10 16:21:50 +11:00
Damien George
7d7f59d78b stm32/uart: Factor out code to set RX buffer to function uart_set_rxbuf. 2018-12-10 16:21:50 +11:00
Damien George
9690757cca stm32/uart: Rework uart_get_baudrate so it doesn't need a UART handle. 2018-12-10 16:21:50 +11:00
Damien George
524e13b006 stm32/uart: Factor out code from machine_uart.c that computes baudrate. 2018-12-10 16:21:50 +11:00
Damien George
a2271532be stm32: Split out UART Python bindings from uart.c to machine_uart.c. 2018-12-10 16:21:50 +11:00
boochow
69b7b8fa12 stm32/boards: Add NUCLEO_L432KC board configuration files. 2018-12-06 13:33:29 +11:00
boochow
9d3372bded stm32: Add peripheral support for STM32L432.
The L432 does not have: GPIOD, TIM3, SPI2, ADC dual mode operation, 2-banks
flash.
2018-12-06 13:32:43 +11:00
boochow
1a8baad7ca stm32/boards: Add STM32L432KC chip configuration files.
The pin alternate function information is derived from ST's datasheet
https://www.st.com/resource/en/datasheet/stm32l432kc.pdf
In the datasheet, the line 2 of AF4 includes I2C2 but actually the chip
does not have I2C2 so it is removed.
2018-12-06 13:32:43 +11:00
Damien George
8007d0bd16 stm32/uart: Add rxbuf keyword arg to UART constructor and init method.
As per the machine.UART documentation, this is used to set the length of
the RX buffer.  The legacy read_buf_len argument is retained for backwards
compatibility, with rxbuf overriding it if provided.
2018-12-05 13:24:11 +11:00
Damien George
c6365ffb92 stm32/powerctrl: Add support for standby mode on L4 MCUs.
This maps to machine.deepsleep() which is now supported.
2018-12-05 00:40:05 +11:00
Damien George
a1c81761b1 stm32/mboot: Add documentation for using mboot on PYBv1.x. 2018-12-04 23:48:47 +11:00
Damien George
c040961e91 stm32/boards: Add configuration for putting mboot on PYBv1.x. 2018-12-04 23:48:18 +11:00
Damien George
eed522d69f stm32/mboot: Add support for 4th board LED. 2018-12-04 23:14:30 +11:00
Damien George
13e92e1225 stm32/mboot: Provide led_state_all function to reduce code size. 2018-12-04 23:11:51 +11:00
Damien George
9262f54138 stm32/uart: Always show the flow setting when printing a UART object.
Also change the order of printing of flow so it is after stop (so bits,
parity, stop are one after the other), and reduce code size by using
mp_print_str instead of mp_printf where possible.

See issue #1981.
2018-12-04 19:16:16 +11:00
Damien George
da1d849ad1 stm32,esp8266,cc3200: Use MICROPY_GC_STACK_ENTRY_TYPE to save some RAM. 2018-12-04 18:32:10 +11:00
roland
10bddc5c28 stm32/boards/STM32F429DISC: Enable UART as secondary REPL.
The board(s) feature a VCOM through the ST-LINK, this feature is something
to keep around.
2018-12-01 17:30:48 +11:00
Damien George
afd1ce0c15 stm32/powerctrl: Disable IRQs during stop mode to allow reconfig on wake 2018-11-28 12:44:54 +11:00
Damien George
66ca8e9b2c stm32/powerctrl: Move (deep)sleep funcs from modmachine.c to powerctrl.c 2018-11-28 12:22:20 +11:00
Damien George
3a723ad2fe stm32/usb: Fully deinitialise USB periph when it is deactivated. 2018-11-28 12:06:47 +11:00
Damien George
5f67b03e99 stm32/servo: Only initialise TIM5 if it is needed, to save power. 2018-11-28 12:06:24 +11:00
Michael Paul Coder
fe452afab2 stm32/flashbdev: Add missing include for irq.h.
This is required for mboot to build.
2018-11-26 16:34:13 +11:00
Tobias Badertscher
9acc32b40f stm32/adc: Add ADC auto-calibration for L4 MCUs.
This increases the precision of the ADC.
2018-11-26 16:16:29 +11:00
roland
30ed2b3cab stm32/system_stm32: Introduce configuration defines for PLL3 settings.
A board must be able to set the PLL3 values based on the HSE that it uses.
2018-11-01 13:25:47 +11:00
Damien George
d2c5496894 stm32/boards/stm32h743.ld: Fix total flash size, should be 2048k.
Fixes issue #4240.
2018-10-17 15:29:56 +11:00
iabdalkader
f0db1a5ab1 stm32/spi: Fix calculation of SPI clock source on H7 MCUs. 2018-10-17 15:26:26 +11:00
Damien George
0f6f86ca49 stm32/usbd_cdc_interface: Refactor USB CDC tx code to not use SOF IRQ.
Prior to this commit the USB CDC used the USB start-of-frame (SOF) IRQ to
regularly check if buffered data needed to be sent out to the USB host.
This wasted resources (CPU, power) if no data needed to be sent.

This commit changes how the USB CDC transmits buffered data:
- When new data is first available to send the data is queued immediately
  on the USB IN endpoint, ready to be sent as soon as possible.
- Subsequent additions to the buffer (via usbd_cdc_try_tx()) will wait.
- When the low-level USB driver has finished sending out the data queued
  in the USB IN endpoint it calls usbd_cdc_tx_ready() which immediately
  queues any outstanding data, waiting for the next IN frame.

The benefits on this new approach are:
- SOF IRQ does not need to run continuously so device has a better chance
  to sleep for longer, and be more responsive to other IRQs.
- Because SOF IRQ is off, current consumption is reduced by a small amount,
  roughly 200uA when USB is connected (measured on PYBv1.0).
- CDC tx throughput (USB IN) on PYBv1.0 is about 2.3 faster (USB OUT is
  unchanged).
- When USB is connected, Python code that is executing is slightly faster
  because SOF IRQ no longer interrupts continuously.
- On F733 with USB HS, CDC tx throughput is about the same as prior to this
  commit.
- On F733 with USB HS, Python code is about 5% faster because of no SOF.

As part of this refactor, the serial port should no longer echo initial
characters when the serial port is first opened (this only used to happen
rarely on USB FS, but on USB HS is was more evident).
2018-10-15 15:37:01 +11:00
Damien George
53ccbe6cec stm32/usbd_cdc_interface: Handle disconnect IRQ to set VCP disconnected.
pyb.USB_VCP().isconnected() will now return False if the USB is
disconnected after having previously been connected.

See issue #4210.
2018-10-15 12:24:40 +11:00
Andrew Leech
338635ccc6 stm32/main: Add configuration macros for board to set heap start/end.
The macros are MICROPY_HEAP_START and MICROPY_HEAP_END, and if not defined
by a board then the default values will be used (maximum heap from SRAM as
defined by linker symbols).

As part of this commit the SDRAM initialisation is moved to much earlier in
main() to potentially make it available to other peripherals and avoid
re-initialisation on soft-reboot.  On boards with SDRAM enabled the heap
has been set to use that.
2018-10-05 17:30:18 +10:00
Damien George
84090edaa3 stm32/mpconfigport.h: Enable math.factorial, optimised version. 2018-09-26 15:05:19 +10:00
Damien George
7b452e7466 stm32/usbd_conf: Allocate enough space in USB HS TX FIFO for CDC packet.
The CDC maximum packet size is 512 bytes, or 128 32-bit words, and the TX
FIFO must be configured to have at least this size.
2018-09-26 12:00:56 +10:00
Damien George
6ea6c7cc9e stm32/powerctrl: Don't configure clocks if already at desired frequency.
Configuring clocks is a critical operation and is best to avoid when
possible.  If the clocks really need to be reset to the same values then
one can pass in a slightly higher value, eg 168000001 Hz to get 168MHz.
2018-09-24 17:34:05 +10:00
Damien George
bc54c57590 stm32/powerctrl: Optimise passing of default values to set_sysclk. 2018-09-24 17:34:05 +10:00
Damien George
dae1635c71 stm32/powerctrl: Factor code that configures PLLSAI on F7 MCUs. 2018-09-24 17:34:05 +10:00
Damien George
90ea2c63a5 stm32/powerctrl: Factor code to set RCC PLL and use it in startup.
This ensures that on first boot the most optimal settings are used for the
voltage scaling and flash latency (for F7 MCUs).

This commit also provides more fine-grained control for the flash latency
settings.
2018-09-24 17:34:05 +10:00
Damien George
9e4812771b stm32/powerctrl: Fix configuring APB1/APB2 frequency when AHB also set.
APB1/APB2 are derived from AHB, so if the user sets AHB!=SYSCLK then the
APB1/APB2 dividers must be computed from the new AHB.
2018-09-24 14:51:17 +10:00
Damien George
dff14c740b stm32/powerctrl: Move function to set SYSCLK into new powerctrl file.
Power and clock control is low-level functionality and it makes sense to
have it in a dedicated file, at least so it can be reused by other parts of
the code.
2018-09-24 14:18:18 +10:00
Damien George
1acf58c08f stm32/modmachine: Re-enable PLLSAI[1] after waking from stop mode.
On F7s PLLSAI is used as a 48MHz clock source if the main PLL cannot
provide such a frequency, and on L4s PLLSAI1 is always used as a clock
source for the peripherals.  This commit makes sure these PLLs are
re-enabled upon waking from stop mode so the peripherals work.

See issues #4022 and #4178 (L4 specific).
2018-09-24 12:55:15 +10:00
Damien George
4df1943948 stm32/boards/NUCLEO_F091RC: Enable USART3-8 with default pins. 2018-09-21 14:04:33 +10:00
Damien George
cdc01408c7 stm32/uart: Add support for USART3-8 on F0 MCUs. 2018-09-21 14:02:54 +10:00
Andrew Leech
84f4d58479 stm32/dcmi: Add F4/F7/H7 hal files and dma definitions for DCMI periph. 2018-09-21 12:12:49 +10:00
Damien George
cb3c66e793 stm32/adc: Increase sample time for internal sensors on L4 MCUs.
They need time (around 4us for VREFINT) to obtain accurate results.

Fixes issue #4022.
2018-09-20 23:51:33 +10:00
Damien George
3220cedc31 stm32/adc: Fix ADC calibration scale for L4 MCUs, they use 3.0V. 2018-09-20 23:50:54 +10:00
Damien George
56f275c0a2 stm32/Makefile: Include copysign.c in double precision float builds.
This is required for DEBUG=1 builds when MICROPY_FLOAT_IMPL=double.

Thanks to Andrew Leech.
2018-09-20 16:51:20 +10:00
Andrew Leech
17f7c683d2 stm32: Add support for STM32F765xx MCUs.
This part is functionally similar to STM32F767xx (they share a datasheet)
so support is generally comparable.  When adding board support the
stm32f767_af.csv and stm32f767.ld should be used.
2018-09-20 15:16:03 +10:00
Damien George
a5b583adfd stm32/boards/STM32F769DISC: Add optional support for external SDRAM. 2018-09-20 11:42:03 +10:00
Damien George
9639e0d26f stm32/sdram: Add support for 32-bit wide data bus and 256MB in MPU cfg. 2018-09-20 11:29:37 +10:00
Damien George
7c4f98db85 stm32/dma: Get DMA working on F0 MCUs.
Changes made:
- fix DMA_SUB_INSTANCE_AS_UINT8
- fix dma_id numbers in dma_descr_t
- add F0 DMA IRQ handlers
- set DmaBaseAddress and ChannelIndex when reinit'ing
2018-09-16 23:16:10 +10:00
Damien George
9fb1f18cf4 stm32/sdcard: Fully reset SDMMC periph before calling HAL DMA functions.
The HAL DMA functions enable SDMMC interrupts before fully resetting the
peripheral, and this can lead to a DTIMEOUT IRQ during the initialisation
of the DMA transfer, which then clears out the DMA state and leads to the
read/write not working at all.  The DTIMEOUT is there from previous SDMMC
DMA transfers, even those that succeeded, and is of duration ~180 seconds,
which is 0xffffffff / 24MHz (default DTIMER value, and clock of
peripheral).

To work around this issue, fully reset the SDMMC peripheral before calling
the HAL SD DMA functions.

Fixes issue #4110.
2018-09-12 17:02:17 +10:00
Damien George
6b3d6da74b stm32/flashbdev: Protect flash writes from cache flushing and USB MSC. 2018-09-12 15:58:42 +10:00
Damien George
0941a467e7 stm32: Change flash IRQ priority from 2 to 6 to prevent preemption.
The flash-IRQ handler is used to flush the storage cache, ie write
outstanding block data from RAM to flash.  This is triggered by a timeout,
or by a direct call to flush all storage caches.

Prior to this commit, a timeout could trigger the cache flushing to occur
during the execution of a read/write to external SPI flash storage.  In
such a case the storage subsystem would break down.

SPI storage transfers are already protected against USB IRQs, so by
changing the priority of the flash IRQ to that of the USB IRQ (what is
done in this commit) the SPI transfers can be protected against any
timeouts triggering a cache flush (the cache flush would be postponed until
after the transfer finished, but note that in the case of SPI writes the
timeout is rescheduled after the transfer finishes).

The handling of internal flash sync'ing needs to be changed to directly
call flash_bdev_irq_handler() sync may be called with the IRQ priority
already raised (eg when called from a USB MSC IRQ handler).
2018-09-12 15:46:04 +10:00
Damien George
6f015d337d stm32/spi: Be sure to set all SPI config values in SPI proto init. 2018-09-11 17:36:11 +10:00
Damien George
c26516d40f stm32/sdcard: Move temporary DMA state from BSS to stack. 2018-09-11 17:23:27 +10:00
Damien George
e4f7001d9c stm32/sdcard: Use only a single DMA stream for both SDIO TX/RX.
No need to be wasteful on DMA resources.
2018-09-11 17:21:22 +10:00
Damien George
d7e2ac4a6a stm32/dma: Reinitialise the DMA if the direction changed on the channel. 2018-09-11 17:19:55 +10:00
Damien George
b0c8a94b41 stm32/dma: Pass DMA direction as parameter to dma_init not in cfg struct
Some DMA channels (eg for SDIO) can be used in both directions and this
patch allows such peripherals to dynamically select the DMA direction.
2018-09-11 17:18:06 +10:00
Damien George
47550ef2cd stm32: For MCUs that have PLLSAI allow to set SYSCLK at 2MHz increments.
MCUs that have a PLLSAI can use it to generate a 48MHz clock for USB, SDIO
and RNG peripherals.  In such cases the SYSCLK is not restricted to values
that allow the system PLL to generate 48MHz, but can be any frequency.
This patch allows such configurability for F7 MCUs, allowing the SYSCLK to
be set in 2MHz increments via machine.freq().  PLLSAI will only be enabled
if needed, and consumes about 1mA extra.  This fine grained control of
frequency is useful to get accurate SPI baudrates, for example.
2018-09-11 16:42:57 +10:00
roland
67ee4e2401 stm32/boards/STM32L476DISC: Enable external RTC xtal to get RTC working. 2018-09-11 15:23:19 +10:00
Andrew Leech
670a2a3396 stm32/Makefile: Allow external BOARD_DIR directory to be specified.
This makes it easy to add a custom board definition outside of the
micropython tree, keeping the micropython submodule clean and official.
2018-09-11 15:15:21 +10:00
Damien George
a23719e0ad stm32/mboot/main: Use correct formula for DFU download address.
As per ST's DfuSe specification, and following their example code.
2018-09-05 15:22:05 +10:00
Damien George
5f3016c663 stm32/mboot/Makefile: Use -Wno-attributes for ll_usb.c HAL source file.
A recent version of arm-none-eabi-gcc (8.2.0) will warn about unused packed
attributes in USB_WritePacket and USB_ReadPacket.  This patch suppresses
such warnings for this file only.
2018-09-05 15:21:43 +10:00
Damien George
056e0b6293 stm32/spi: Add implementation of low-level SPI protocol.
Can be used, for example, to configure external SPI flash using a hardware
SPI interface (code to be put in a board's bdev.c file):

    STATIC const spi_proto_cfg_t hard_spi_bus = {
        .spi = &spi_obj[5],
        .baudrate = 10000000,
        .polarity = 0,
        .phase = 0,
        .bits = 8,
        .firstbit = SPI_FIRSTBIT_MSB,
    };

    STATIC mp_spiflash_cache_t spi_bdev_cache;

    const mp_spiflash_config_t spiflash_config = {
        .bus_kind = MP_SPIFLASH_BUS_SPI,
        .bus.u_spi.cs = pin_A0,
        .bus.u_spi.data = (void*)&hard_spi_bus,
        .bus.u_spi.proto = &spi_proto,
        .cache = &spi_bdev_cache,
    };

    spi_bdev_t spi_bdev;
2018-08-14 22:10:43 +10:00
Damien George
8300be6d0f stm32/spi: Split out pyb.SPI and machine.SPI bindings to their own files
The aim here is to have spi.c contain the low-level SPI driver which is
independent (not fully but close) of MicroPython objects and methods, and
the higher-level bindings are separated out to pyb_spi.c and machine_spi.c.
2018-08-14 17:11:07 +10:00
forester3
02fbb0a455 stm32/boards/STM32F7DISC: Enable onboard SDRAM.
The default SYSCLK frequency is reduced to 192MHz because SDRAM requires it
to be 200MHz or less.
2018-08-14 16:04:10 +10:00
forester3
502c410214 stm32/boards/STM32F429DISC: Add burst len and autorefresh to SDRAM cfg.
To align with recent changes to sdram.c.
2018-08-14 16:03:13 +10:00
forester3
e562f99263 stm32/sdram: Allow additional config by a board, and tune MPU settings.
- Allow configuration by a board of autorefresh number and burst length.
- Increase MPU region size to 8MiB.
- Make SDRAM region cacheable and executable.
2018-08-14 16:00:14 +10:00
Damien George
86e0b25532 stm32/spi: Round up prescaler calc to never exceed requested baudrate.
Requesting a baudrate of X should never configure the peripheral to have a
baudrate greater than X because connected hardware may not be able to
handle higher speeds.  This patch makes sure to round the prescaler up so
that the actual baudrate is rounded down.
2018-08-10 16:39:47 +10:00
David Lechner
3fccd78aca stm32/dma: Fix spelling of "corresponding" in two locations. 2018-08-10 16:26:25 +10:00
Damien George
7be5bb3672 stm32/adc: Fix ADC reading on F0 MCUs to only sample a single channel.
And increase sampling time to get better results for internal channels.
2018-08-04 13:33:02 +10:00
Damien George
c62b23094f stm32/adc: Disable VBAT in read channel helper function.
Prior to this patch, if VBAT was read via ADC.read() or
ADCAll.read_channel(), then it would remain enabled and subsequent reads
of TEMPSENSOR or VREFINT would not work.  This patch makes sure that VBAT
is disabled for all cases that it could be read.
2018-08-04 13:25:43 +10:00
Damien George
5482d84673 stm32/modmachine: Get machine.sleep working on L4 MCUs.
When waking from stop mode most of the system is still in the same state as
before entering stop, so only minimal configuration is needed to bring the
system clock back online.
2018-08-01 17:14:19 +10:00
Damien George
c12348700f stm32/extint.h: Use correct EXTI lines for RTC interrupts. 2018-08-01 17:13:49 +10:00
Damien George
21dae87710 stm32/modmachine: Get machine.sleep working on F0 MCUs. 2018-07-31 17:25:53 +10:00
Damien George
9dfbb6cc16 stm32/rtc: Get rtc.wakeup working on F0 MCUs.
The problem was that the EXTI line for the RTC wakeup event is line 20 on
the F0, so the interrupt was not firing.
2018-07-31 17:24:10 +10:00
Damien George
f6f6452b6f stm32/Makefile: Use -Wno-attributes for ll_usb.c HAL source file.
A recent version of arm-none-eabi-gcc (8.2.0) will warn about unused packed
attributes in USB_WritePacket and USB_ReadPacket.  This patch suppresses
such warnings for this file only.
2018-07-30 15:35:05 +10:00
Damien George
90fc7c5cfa stm32/sdcard: Get SDMMC alt func macro names working with F4,F7,H7 MCUs. 2018-07-30 15:33:33 +10:00
Andrew Leech
434975defa stm32/boards/STM32F429DISC: Enable onboard SDRAM. 2018-07-23 23:16:32 +10:00
Andrew Leech
968fa47392 stm32/sdram: On F7 MCUs enable MPU on external SDRAM.
This prevents hard-faults on non-aligned accesses.

Reference: http://www.keil.com/support/docs/3777.htm
2018-07-23 23:15:18 +10:00
Andrew Leech
a1db1506a2 stm32/sdram: Integrate SDRAM driver into rest of code.
If SDRAM is configured and enabled for a board then it is used for the
MicroPython GC heap.
2018-07-23 23:14:23 +10:00
Andrew Leech
7ae053abfd stm32/sdram: Add SDRAM driver from OpenMV project.
Taken from 7fbe54ad4e/src/omv/sdram.c

Code is is MIT licensed.
2018-07-23 23:13:24 +10:00
Damien George
4201f36a46 stm32/sdcard: Use mp_hal_pin_config_alt_static to configure SD card pins 2018-07-20 14:03:21 +10:00
Andrew Leech
4343c9330e stm32: Add method for statically configuring pin alternate function.
Works with pins declared normally in mpconfigboard.h, eg. (pin_XX), as well
as (pyb_pin_XX).

Provides new mp_hal_pin_config_alt_static(pin_obj, mode, pull, fn_type)
function declared in pin_static_af.h to allow configuring pin alternate
functions by name at compile time.
2018-07-20 14:03:21 +10:00
Peter D. Gray
a8736e5c36 stm32/flashbdev: Fix bug with L4 block cache, dereferencing block size.
The code was dereferencing 0x800 and loading a value from there, trying to
use a literal value (not address) defined in the linker script
(_ram_fs_cache_block_size) which was 0x800.
2018-07-19 12:15:34 +10:00
Peter D. Gray
0d58f6ba5e stm32/mphalport: Make mp_hal_stdin_rx_chr/stdout_tx_strn weakly linked.
To allow for customizations.
2018-07-18 10:41:55 +10:00
Damien George
46091b8a95 stm32/timer: Add tick_hz arg to Timer constructor and init method.
The period of the timer can now be specified using the "period" and
"tick_hz" args.  The period in seconds will be: period/tick_hz.  tick_hz
defaults to 1000, so if period is specified on its own then it will be in
units of milliseconds.
2018-07-17 13:36:36 +10:00
Damien George
821b59d439 stm32/timer: Use enum for indexing keyword arg in pyb_timer_init_helper. 2018-07-17 13:22:42 +10:00
Peter D. Gray
2a3979bcb3 stm32/fatfs_port: Fix bug when MICROPY_HW_ENABLE_RTC not enabled.
Prior to this patch, get_fattime() was calling a HAL RTC function with the
HW instance pointer as null because rtc_init_start() was never called.

Also marked it as a weak function, to allow a board to override it.
2018-07-14 17:17:46 +10:00
Damien George
e1ae9939ac stm32: Support compiling with object representation D.
With this and previous patches the stm32 port can now be compiled using
object representation D (nan boxing).  Note that native code and frozen mpy
files with float constants are currently not supported with this object
representation.
2018-07-08 23:25:11 +10:00
Damien George
3503f9626a stm32: Access dict map directly instead of using helper function. 2018-07-08 22:11:28 +10:00
Damien George
8f86fbfd6c ports: Enable ure.sub() on stm32, esp8266 (not 512k) and esp32. 2018-07-02 15:13:18 +10:00
Damien George
9b158d60e1 stm32/mboot: Always use a flash latency of 1WS to match 48MHz HCLK. 2018-06-26 00:06:04 +10:00
Damien George
967123d42e stm32/mboot: Only compile in code for the USB periph that is being used.
Prior to this patch, if both USB FS and HS were enabled via the
configuration file then code was included to handle both of their IRQs.
But mboot only supports listening on a single USB peripheral, so this patch
excludes the code for the USB that is not used.
2018-06-26 00:02:36 +10:00
Damien George
37c4fd3b50 stm32/mboot: Fix bug with invalid memory access of USB state.
Only one of pcd_fs_handle/pcd_hs_handle is ever initialised, so if both of
these USB peripherals are enabled then one of these if-statements will
access invalid memory pointed to by an uninitialised Instance.  This patch
fixes this bug by explicitly referencing the peripheral struct.
2018-06-25 23:39:46 +10:00
Damien George
6fc84a7454 stm32/modnetwork: Fix query of DNS IP address in ifconfig().
Thanks to @boochow for the fix.
2018-06-23 23:41:59 +10:00
Damien George
a2ac7e4fc9 stm32/boards: Add .ld and af.csv files for STM32F722.
These files can also be used for F723, F732 and F733 MCUs.
2018-06-22 15:39:10 +10:00