Commit Graph

22 Commits

Author SHA1 Message Date
Damien George
8ed7155828 stmhal: Add "quiet timing" enter/exit functions.
They disable all interrupts except for SysTick and are useful for doing
certain low-level timing operations.
2017-06-22 16:18:42 +10:00
Damien George
2460888c74 stmhal/i2c: Clean the cache so that I2C DMA works on F7 MCUs. 2017-03-31 12:56:18 +11:00
Damien George
89738e8240 stmhal: Rename sys_tick ticks/delay functions to corresp. mp_hal ones.
The renames are:
HAL_Delay -> mp_hal_delay_ms
sys_tick_udelay -> mp_hal_delay_us
sys_tick_get_microseconds -> mp_hal_ticks_us

And mp_hal_ticks_ms is added to provide the full set of timing functions.

Also, a separate HAL_Delay function is added which differs slightly from
mp_hal_delay_ms and is intended for use only by the ST HAL functions.
2017-03-02 15:32:32 +11:00
Damien George
425150040c stmhal/mphalport.h: Explicitly use HAL's GPIO constants for pull modes.
They are the same as the existing raw constants (namely 0, 1, 2) but we
want to explicitly show that one can use the HAL's constants if necessary
(eg the mpconfigboard.h files do use the HAL's constants to define the
pull state of certain configurable pins).
2016-12-22 14:55:26 +11:00
Damien George
1eb3c66e91 extmod/machine_spi: Provide reusable software SPI class.
So long as a port defines relevant mp_hal_pin_xxx functions (and delay) it
can make use of this software SPI class without the need for additional
code.
2016-12-08 13:47:01 +11:00
Jean-François Milants
08bd7d1d31 stmhal/sdcard: Clean/invalidate cache before DMA transfers with SD card.
Add 2 macros in mphalport.h that clean and invalidate data caches only on
STM32F7 MCUs.  They are needed to ensure the cache coherency before/after
DMA transferts.

* MP_HAL_CLEANINVALIDATE_DCACHE cleans and invalidate the data cache. It
  must be called before starting a DMA transfer from the peripheral to the
  RAM memory.

* MP_HAL_CLEAN_DCACHE cleans the data cache.  It must be called before
  starting a DMA transfert from the RAM memory to the peripheral.

These macros are called in sdcard.c, before reading from and writing to
the SDCard, when DMA is used.
2016-12-02 13:51:09 +11:00
Krzysztof Blazewicz
4d9dce7759 stmhal/mphalport.h: use single GPIOx->BSRR register 2016-11-16 12:43:27 +01:00
Damien George
1375c52772 stmhal: Rename mp_hal_pin_set_af to _config_alt, to simplify alt config.
This way the caller doesn't need to initialise a big GPIO_InitTypeDef
struct, and HAL_GPIO_Init is no longer called.
2016-11-11 17:53:45 +11:00
Damien George
d49d81b167 stmhal: Refactor pin usage to use mp_hal_pin API. 2016-10-18 14:34:08 +11:00
Damien George
cd9b14bb11 stmhal/modutime: Refactor to use extmod's version of ticks_cpu. 2016-10-18 14:34:08 +11:00
Paul Sokolovsky
f059563507 stmhal/modutime: Refactor to use extmod/utime_mphal.c.
This includes making sure that utime_mphal's sleep_ms() and sleep_us()
don't sleep on negative arguments.
2016-10-14 20:42:42 +03:00
Damien George
0bb3c7d3b7 stmhal: Enable machine.time_pulse_us() function. 2016-10-06 12:12:20 +11:00
Damien George
b1537a5752 stmhal/mphalport: Change pin obj type to const pointer, to avoid casts. 2016-10-05 15:51:40 +11:00
Damien George
5deedd6685 stmhal/mphalport: Fix mp_hal_pin_write to use correct pin_mask. 2016-10-03 18:06:58 +11:00
Damien George
077dbf4a86 stmhal/mphalport: Implement mp_hal_pin_{input,output,write}. 2016-10-03 16:44:34 +11:00
Damien George
4b37e775ea extmod/machine_i2c: Redo mp_hal_pin macros to use open_drain and od_low.
mp_hal_pin_config_od is renamed mp_hal_pin_open_drain, and mp_hal_pin_low
is mp_hal_pin_od_low.
2016-05-26 17:06:40 +01:00
Damien George
624738ca64 extmod/machine_i2c: Allow mp_hal_pin_obj_t to be any type, not a ptr. 2016-04-22 09:56:02 +01:00
Tobias Badertscher
dda1a41205 stmhal: L4: Modify mphalport to support L4 MCU.
__GPIOI_CLK_ENABLE is defined in hal/l4/inc/Legacy/stm32_hal_legacy.h
as __HAL_RCC_GPIOI_CLK_ENABLE, and that latter macro is not defined
anywhere else (because the L4 does not have port GPIOI).  So the test
for GPIOI is needed, along with the test for the CLK_ENABLE macro.
2016-04-21 12:23:28 +01:00
Damien George
e4f963a351 stmhal: Use new generic I2C object in machine module. 2016-04-12 14:06:54 +01:00
Damien George
69a1aaf654 stmhal: Implement basic C-level pin HAL. 2016-04-12 14:06:54 +01:00
Dave Hylands
7bb501ef9f stmhal: Add a function for setting the pin alternate function
mp_hal_gpio_set_af will search for a given function and unit
and set the alternate function to the alternate function index
found.
2016-02-10 21:20:14 -08:00
Damien George
731f359292 all: Add py/mphal.h and use it in all ports.
py/mphal.h contains declarations for generic mp_hal_XXX functions, such
as stdio and delay/ticks, which ports should provide definitions for.  A
port will also provide mphalport.h with further HAL declarations.
2015-10-31 19:14:30 +03:00