diff options
| -rw-r--r-- | ports/rp2/modmachine.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/ports/rp2/modmachine.c b/ports/rp2/modmachine.c index 742d20f1f..fd2912c80 100644 --- a/ports/rp2/modmachine.c +++ b/ports/rp2/modmachine.c @@ -140,6 +140,9 @@ static void mp_machine_idle(void) { static void alarm_sleep_callback(uint alarm_id) { } +// Set this to 1 to enable some debug of the interrupt that woke the device +#define DEBUG_LIGHTSLEEP 0 + static void mp_machine_lightsleep(size_t n_args, const mp_obj_t *args) { mp_int_t delay_ms = 0; bool use_timer_alarm = false; @@ -209,6 +212,14 @@ static void mp_machine_lightsleep(size_t n_args, const mp_obj_t *args) { // Disable ROSC. rosc_hw->ctrl = ROSC_CTRL_ENABLE_VALUE_DISABLE << ROSC_CTRL_ENABLE_LSB; + #if DEBUG_LIGHTSLEEP + #if PICO_RP2040 + uint32_t pending_intr = 0; + #else + uint32_t pending_intr[2] = { 0 }; + #endif + #endif + bool alarm_armed = false; if (n_args == 0) { #if MICROPY_PY_NETWORK_CYW43 @@ -264,6 +275,15 @@ static void mp_machine_lightsleep(size_t n_args, const mp_obj_t *args) { // Go into low-power mode. if (alarm_armed) { __wfi(); + + #if DEBUG_LIGHTSLEEP + #if PICO_RP2040 + pending_intr = nvic_hw->ispr; + #else + pending_intr[0] = nvic_hw->ispr[0]; + pending_intr[1] = nvic_hw->ispr[1]; + #endif + #endif } clocks_hw->sleep_en0 = save_sleep_en0; clocks_hw->sleep_en1 = save_sleep_en1; @@ -286,6 +306,19 @@ static void mp_machine_lightsleep(size_t n_args, const mp_obj_t *args) { } hardware_alarm_set_callback(MICROPY_HW_LIGHTSLEEP_ALARM_NUM, NULL); hardware_alarm_unclaim(MICROPY_HW_LIGHTSLEEP_ALARM_NUM); + + #if DEBUG_LIGHTSLEEP + // Check irq.h for the list of IRQ's + // for rp2040 00000042: TIMER_IRQ_1 woke the device as expected + // 00000020: USBCTRL_IRQ woke the device (probably early) + // For rp2350 00000000:00000002: TIMER0_IRQ_1 woke the device as expected + // 00000000:00004000: USBCTRL_IRQ woke the device (probably early) + #if PICO_RP2040 + mp_printf(MP_PYTHON_PRINTER, "lightsleep: pending_intr=%08lx\n", pending_intr); + #else + mp_printf(MP_PYTHON_PRINTER, "lightsleep: pending_intr=%08lx:%08lx\n", pending_intr[1], pending_intr[0]); + #endif + #endif } } |