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stm32/boardctrl: Use HAL_Delay instead of mp_hal_delay_ms. 

Not safe to use mp_hal_delay_ms before boot if threading is enabled,
because threading will not have been initialised, and
MICROPY_EVENT_POLL_HOOK assumes threading is initialised.

HAL_Delay doesn't call MICROPY_EVENT_POLL_HOOK, but is still
power-efficient like mp_hal_delay_ms (unlike mp_hal_delay_us).

Fixes #7816.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared 2022-08-25 12:27:49 +10:00 committed by Damien George
parent 492ba5eaf2
commit 986ad6bf1d
1 changed files with 13 additions and 10 deletions
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23
ports/stm32/boardctrl.c
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@ -89,6 +89,9 @@ void boardctrl_maybe_enter_mboot(size_t n_args, const void *args_in) {
#if !MICROPY_HW_USES_BOOTLOADER
STATIC uint update_reset_mode(uint reset_mode) {
// Note: Must use HAL_Delay here as MicroPython is not yet initialised
// and mp_hal_delay_ms will attempt to invoke the scheduler.
#if MICROPY_HW_HAS_SWITCH
if (switch_get()) {
@ -100,7 +103,7 @@ STATIC uint update_reset_mode(uint reset_mode) {
led_state(3, reset_mode & 2);
led_state(4, reset_mode & 4);
for (uint j = 0; j < 30; ++j) {
mp_hal_delay_ms(20);
HAL_Delay(20);
if (!switch_get()) {
goto select_mode;
}
@ -115,13 +118,13 @@ STATIC uint update_reset_mode(uint reset_mode) {
led_state(2, 0);
led_state(3, 0);
led_state(4, 0);
mp_hal_delay_ms(50);
HAL_Delay(50);
led_state(2, reset_mode & 1);
led_state(3, reset_mode & 2);
led_state(4, reset_mode & 4);
mp_hal_delay_ms(50);
HAL_Delay(50);
}
mp_hal_delay_ms(400);
HAL_Delay(400);
#elif defined(MICROPY_HW_LED1)
@ -134,11 +137,11 @@ STATIC uint update_reset_mode(uint reset_mode) {
break;
}
led_state(1, 1);
mp_hal_delay_ms(100);
HAL_Delay(100);
led_state(1, 0);
mp_hal_delay_ms(200);
HAL_Delay(200);
}
mp_hal_delay_ms(400);
HAL_Delay(400);
if (!switch_get()) {
break;
}
@ -150,11 +153,11 @@ STATIC uint update_reset_mode(uint reset_mode) {
for (uint i = 0; i < 2; i++) {
for (uint j = 0; j < reset_mode; j++) {
led_state(1, 1);
mp_hal_delay_ms(100);
HAL_Delay(100);
led_state(1, 0);
mp_hal_delay_ms(200);
HAL_Delay(200);
}
mp_hal_delay_ms(400);
HAL_Delay(400);
}
#else
#error Need a reset mode update method