diff options
| author | Scott Shawcroft <scott@adafruit.com> | 2020-11-12 12:31:18 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-11-12 12:31:18 -0800 |
| commit | 5f84b790a75e824bc0a365dd15f7487e7f37ec81 (patch) | |
| tree | b3702382ce55dc76f04dd3555b154f448713627b | |
| parent | a47dea4922ed8433a51fa8f3f3f8358108bbe6b2 (diff) | |
| parent | ff411802374d4a77b0bc76da0e4fa31076c0182e (diff) | |
Merge pull request #3682 from microDev1/pcnt-reset
ESP32S2: Reset PCNT on user code reload
| -rw-r--r-- | ports/esp32s2/peripherals/pcnt.c | 18 | ||||
| -rw-r--r-- | ports/esp32s2/peripherals/pcnt.h | 1 | ||||
| -rw-r--r-- | ports/esp32s2/supervisor/port.c | 5 |
3 files changed, 16 insertions, 8 deletions
diff --git a/ports/esp32s2/peripherals/pcnt.c b/ports/esp32s2/peripherals/pcnt.c index 555a0ec1d..dd24569be 100644 --- a/ports/esp32s2/peripherals/pcnt.c +++ b/ports/esp32s2/peripherals/pcnt.c @@ -29,14 +29,20 @@ #define PCNT_UNIT_ACTIVE 1 #define PCNT_UNIT_INACTIVE 0 -static uint8_t pcnt_state[4]; +static uint8_t pcnt_unit_state[4]; + +void peripherals_pcnt_reset(void) { + for (uint8_t i = 0; i<=3; i++) { + pcnt_unit_state[i] = PCNT_UNIT_INACTIVE; + } +} int peripherals_pcnt_init(pcnt_config_t pcnt_config) { // Look for available pcnt unit for (uint8_t i = 0; i<=3; i++) { - if (pcnt_state[i] == PCNT_UNIT_INACTIVE) { + if (pcnt_unit_state[i] == PCNT_UNIT_INACTIVE) { pcnt_config.unit = (pcnt_unit_t)i; - pcnt_state[i] = PCNT_UNIT_ACTIVE; + pcnt_unit_state[i] = PCNT_UNIT_ACTIVE; break; } else if (i == 3) { return -1; @@ -46,10 +52,6 @@ int peripherals_pcnt_init(pcnt_config_t pcnt_config) { // Initialize PCNT unit pcnt_unit_config(&pcnt_config); - // Configure and enable the input filter - pcnt_set_filter_value(pcnt_config.unit, 100); - pcnt_filter_enable(pcnt_config.unit); - // Initialize PCNT's counter pcnt_counter_pause(pcnt_config.unit); pcnt_counter_clear(pcnt_config.unit); @@ -61,6 +63,6 @@ int peripherals_pcnt_init(pcnt_config_t pcnt_config) { } void peripherals_pcnt_deinit(pcnt_unit_t* unit) { - pcnt_state[*unit] = PCNT_UNIT_INACTIVE; + pcnt_unit_state[*unit] = PCNT_UNIT_INACTIVE; *unit = PCNT_UNIT_MAX; } diff --git a/ports/esp32s2/peripherals/pcnt.h b/ports/esp32s2/peripherals/pcnt.h index abed80fd0..4fce13f4d 100644 --- a/ports/esp32s2/peripherals/pcnt.h +++ b/ports/esp32s2/peripherals/pcnt.h @@ -31,5 +31,6 @@ extern int peripherals_pcnt_init(pcnt_config_t pcnt_config); extern void peripherals_pcnt_deinit(pcnt_unit_t* unit); +extern void peripherals_pcnt_reset(void); #endif // MICROPY_INCLUDED_ESP32S2_PERIPHERALS_PCNT_HANDLER_H diff --git a/ports/esp32s2/supervisor/port.c b/ports/esp32s2/supervisor/port.c index 3ea1fafbb..ef032c4a7 100644 --- a/ports/esp32s2/supervisor/port.c +++ b/ports/esp32s2/supervisor/port.c @@ -49,6 +49,7 @@ #include "shared-bindings/rtc/__init__.h" #include "peripherals/rmt.h" +#include "peripherals/pcnt.h" #include "components/heap/include/esp_heap_caps.h" #include "components/soc/soc/esp32s2/include/soc/cache_memory.h" @@ -117,6 +118,10 @@ void reset_port(void) { uart_reset(); #endif +#if defined(CIRCUITPY_COUNTIO) || defined(CIRCUITPY_ROTARYIO) + peripherals_pcnt_reset(); +#endif + #if CIRCUITPY_RTC rtc_reset(); #endif |