diff options
| author | iabdalkader <i.abdalkader@gmail.com> | 2022-01-23 03:33:43 +0200 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2022-01-27 17:10:39 +1100 |
| commit | a00e1e57355f850bce928a770851bc0dc01484c2 (patch) | |
| tree | 19fe71fe9d63179279b19eebdf1ad39e77a8854c | |
| parent | c1841c2d455a99f4184487da658e88267785ebd5 (diff) | |
stm32/dac: Deinit all DACs on soft reset.
DAC timed functions continue to run after a soft reset cycle, using
collected memory in the case of write_timed.
| -rw-r--r-- | ports/stm32/dac.c | 7 | ||||
| -rw-r--r-- | ports/stm32/dac.h | 2 | ||||
| -rw-r--r-- | ports/stm32/main.c | 3 |
3 files changed, 12 insertions, 0 deletions
diff --git a/ports/stm32/dac.c b/ports/stm32/dac.c index fe3aecdde..d51312aeb 100644 --- a/ports/stm32/dac.c +++ b/ports/stm32/dac.c @@ -131,6 +131,13 @@ STATIC void dac_deinit(uint32_t dac_channel) { #endif } +void dac_deinit_all(void) { + dac_deinit(DAC_CHANNEL_1); + #if !defined(STM32L452xx) + dac_deinit(DAC_CHANNEL_2); + #endif +} + STATIC void dac_config_channel(uint32_t dac_channel, uint32_t trig, uint32_t outbuf) { DAC->CR &= ~(DAC_CR_EN1 << dac_channel); uint32_t cr_off = DAC_CR_DMAEN1 | DAC_CR_MAMP1 | DAC_CR_WAVE1 | DAC_CR_TSEL1 | DAC_CR_TEN1; diff --git a/ports/stm32/dac.h b/ports/stm32/dac.h index fca36e019..d5686725a 100644 --- a/ports/stm32/dac.h +++ b/ports/stm32/dac.h @@ -28,4 +28,6 @@ extern const mp_obj_type_t pyb_dac_type; +void dac_deinit_all(void); + #endif // MICROPY_INCLUDED_STM32_DAC_H diff --git a/ports/stm32/main.c b/ports/stm32/main.c index 431fa20de..3291a8018 100644 --- a/ports/stm32/main.c +++ b/ports/stm32/main.c @@ -654,6 +654,9 @@ soft_reset_exit: #if MICROPY_HW_ENABLE_CAN can_deinit_all(); #endif + #if MICROPY_HW_ENABLE_DAC + dac_deinit_all(); + #endif machine_deinit(); #if MICROPY_PY_THREAD |