Commit Graph

10 Commits

Author SHA1 Message Date
Damien George
e715a8fb9b stm32/boards/PYBD_SF2: Disable SPIFLASH_ENABLE_CACHE for mboot builds.
Mboot builds do not use the external SPI flash in caching mode, and
explicitly disabling it saves RAM and a small bit of flash.

Signed-off-by: Damien George <damien@micropython.org>
2020-12-18 13:39:32 +11:00
Damien George
e43a74a4db drivers/memory/spiflash: Add MICROPY_HW_SPIFLASH_ENABLE_CACHE option.
This only needs to be enabled if a board uses FAT FS on external SPI flash.
When disabled (and using external SPI flash) 4k of RAM can be saved.

Signed-off-by: Damien George <damien@micropython.org>
2020-12-18 13:39:32 +11:00
Damien George
67fd58bbd2 stm32/mboot: Add support for littlefs.
Mboot now supports FAT, LFS1 and LFS2 filesystems, to load firmware from.
The filesystem needed by the board must be explicitly enabled by the
configuration variables MBOOT_VFS_FAT, MBOOT_VFS_LFS1 and MBOOT_VFS_LFS2.
Boards that previously used FAT implicitly (with MBOOT_FSLOAD enabled) must
now add the following config to mpconfigboard.h:

    #define MBOOT_VFS_FAT (1)

Signed-off-by: Damien George <damien@micropython.org>
2020-06-26 21:17:02 +10:00
Damien George
e3187b052f stm32/boards/PYBD: Change RTC asynch prediv from 1 to 4.
This change has the following effects:
- Reduces the resolution of the RTC sub-second counter from 30.52us to
  122.07us.
- Allows RTC.calibration() to now support positive values (as well as
  negative values).
- Reduces VBAT current consumption in standby mode by a small amount.

For general purpose use 122us resolution of the sub-second counter is
good enough, and the benefits of full range calibration and minor reduction
in VBAT consumption are worth the change.
2020-01-07 23:59:29 +11:00
Damien George
fb01415599 stm32/boards/PYBD_SF2: Configure LEDs as inverted, for LED.intensity(). 2019-12-13 17:28:24 +11:00
Damien George
120368ba1a stm32/boards: Enable LFS2 on PYBv1.x and PYBD boards. 2019-11-26 00:08:57 +11:00
Jim Mussared
fafa9d35dd stm32/boards/PYBD: Enable BLE for Pyboard D. 2019-10-01 09:51:02 +10:00
Damien George
c1a8c7fc09 stm32/boards/PYBD_SFx: Automatically turn on EN_3V3 when powering SD/MMC 2019-07-04 11:11:11 +10:00
Damien George
d821a27b58 stm32/boards/PYBD_SFx: Put SPI flash to sleep during sleep modes. 2019-07-03 01:27:33 +10:00
Damien George
8f55c74533 stm32/boards: Add board definition files for PYBD -SF2, -SF3, -SF6.
These are core configurations providing PYBv1.x-level features.
2019-05-31 22:44:25 +10:00