Commit Graph

21 Commits

Author SHA1 Message Date
Dave Hylands
21e1703d37 stmhal: Add support for flash storage on STM32F415. 2016-11-26 16:47:45 +11:00
Dave Hylands
1f433c719b stmhal: Fix linker map for STM32L476 chips.
In particular, this makes the L4 .isr_vector section 16K in size so it's
the same as the F4/F7 MCUs.  The patch also moves the L4 filesystem to
the end of flash, which allows for 512K filesystem on the 1Mb devices
like the STM32L476DISC.
2016-10-04 14:31:19 +11:00
Tobias Badertscher
067fb2da14 stmhal: L4: Modify flash.c and storage.c to support L4 MCU.
The way to lookup the flash sector now uses a much simpler table for
all MCUs.
2016-04-21 13:03:38 +01:00
Ryan Shaw
ad725a6661 stmhal: Add support for generic STM32F439 board (non DISCO). 2016-03-09 22:46:41 +00:00
Damien George
e372e83b30 extmod/fsusermount: Move BP_IOCTL_xxx constants to fsusermount.h. 2016-02-10 23:40:35 +00:00
Damien George
b33a770596 extmod/fsusermount: Support mounting of multiple block devices.
This patch adds support to fsusermount for multiple block devices
(instead of just one).  The maximum allowed is fixed at compile time by
the size of the fs_user_mount array accessed via MP_STATE_PORT, which
in turn is set by MICROPY_FATFS_VOLUMES.

With this patch, stmhal (which is still tightly coupled to fsusermount)
is also modified to support mounting multiple devices   And the flash and
SD card are now just two block devices that are mounted at start up if
they exist (and they have special native code to make them more
efficient).
2016-02-10 23:40:10 +00:00
Damien George
3770cd2e70 stmhal: Expose flash and SD card as proper objects with block protocol.
You can now create (singleton) objects representing the flash and SD
card, using:

    flash = pyb.Flash()
    sdcard = pyb.SDCard()

These objects provide the block protocol.
2016-02-10 23:40:10 +00:00
Tobias Badertscher
8844d031e4 stmhal: Add support for the STM32F429I-DISCO kit by STMicro. 2015-11-25 23:53:26 +00:00
Dave Curtis
32b3549cce stmhal: Add symbolic #defines for interrupt levels in irq.h. 2015-11-01 23:23:39 +00:00
Dave Hylands
8f1eced69d stmhal: Add STM32F7 support for USB serial and storage.
USB serial is now working for F7.

Internal file storage is now working for F7.  The flash is laid out a bit
differently to the F4 - 4 x 32K, 1 x 128K with the rest 256K, so the
internal storage is 96K.

Added more pind definitions for STM32F7DISC board.  Made USART1 be the
default HWUART repl.  The STLINK usb connector also looks like a USB
serial port which is attached to USART1 on the STM32F7DISC.
2015-08-03 00:39:27 +01:00
Dave Hylands
92d4b51ad5 stmhal: Add STM32F7DISC and associated changes. 2015-07-30 00:38:32 +01:00
Dave Hylands
ea8bf81058 stmhal: Replace #include "stm32f4xx_hal.h" with #include STM32_HAL_H. 2015-07-30 00:38:25 +01:00
Damien George
0807139c1d stmhal: Add config option for storage to use second flash segment.
When enabled this allows the internal storage to be split over 2
contiguous regions of flash (two segments), and so the storage can be
increased.

This option is disabled by default, giving original behaviour.
2015-06-27 23:27:23 +01:00
Damien George
b42a5050fb stmhal: Add support for STM32F411 MCU. 2015-04-18 22:15:59 +01:00
Damien George
3e592531eb stmhal: For flash storage use same params for F407 as F405. 2015-04-18 22:08:16 +01:00
Damien George
6be0bbb886 stmhal: Add support for flash filesystem on F401 MCUs.
It uses a 16k cache buffer and so the filesystem size is limited.
2015-04-18 21:40:59 +01:00
Damien George
2cf6dfa280 stmhal: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:06:20 +00:00
Paul Sokolovsky
8139494e54 stmhal: Include mpconfig.h before all other includes.
It defines types used by all other headers.

Fixes #691.
2014-06-28 23:32:03 +03:00
Damien George
04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Damien George
6d983539bc stmhal: Improve flash storage cache management.
Internal flash used for the filesystem is now written (from the cache)
only after a 5s delay, or when a file is closed, or when the drive is
unmounted from the host.  This delay means that multiple writes can
accumulate in the cache, and leads to less writes to the flash, making
it last longer.

It's implemented by a high-priority interrupt that takes care of flash
erase and write, and flushing the cache.

This is still only an interim solution for the flash filesystem.  It
eventually needs to be replaced with something that uses less RAM for
the cache, something that can use more of the flash, and something that
does proper wear levelling.
2014-04-16 23:08:36 +01:00
Damien George
9e5ea4d768 stmhal: Add flash write support and flash storage driver. 2014-03-17 13:31:35 +00:00