Sorry if this is a silly question, i have been working with my ESP32 and GPIO, and i have just started to add wifi to it. However, it keeps Panic'ing.
I have tracked it down to setting a pin level in the timer interrupt:
I have put my code below:
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void IRAM_ATTR timer_group0_isr0(void *para) {
int timer_idx = (int) para;
/* Retrieve the interrupt status and the counter value
from the timer that reported the interrupt */
uint32_t intr_status = TIMERG0.int_st_timers.val;
/* Clear the interrupt
and update the alarm time for the timer with without reload */
if ((intr_status & BIT(timer_idx)) && timer_idx == TIMER_0) {
timer10us |= (option0);
cnt++;
if (cnt > 2499) {
cnt = 0;
timer25ms |= (option0 | option1);
}
TIMERG0.int_clr_timers.t0 = 1;
TIMERG0.hw_timer[0].config.alarm_en = TIMER_ALARM_EN;
} else if ((intr_status & BIT(timer_idx)) && timer_idx == TIMER_1) {
//38khz
if (IRCarrierWave==0) {
gpio_set_level(IRCarrierPin, 1);
IRCarrierWave = 1;
} else {
gpio_set_level(IRCarrierPin, 0);
IRCarrierWave = 0;
}
TIMERG0.int_clr_timers.t1 = 1;
/* After the alarm has been triggered
we need enable it again, so it is triggered the next time */
TIMERG0.hw_timer[1].config.alarm_en = TIMER_ALARM_EN;
}
}
void inittimers() {
timer_config_t config;
config.divider = TIMER_DIVIDER;
config.counter_dir = TIMER_COUNT_UP;
config.counter_en = TIMER_PAUSE;
config.alarm_en = TIMER_ALARM_EN;
config.intr_type = TIMER_INTR_LEVEL;
config.auto_reload = TIMER_AUTORELOAD_EN;
timer_init(TIMER_GROUP_0, 0, &config);
timer_init(TIMER_GROUP_0, 1, &config);
/* Timer's counter will initially start from value below.
Also, if auto_reload is set, this value will be automatically reload on alarm */
timer_set_counter_value(TIMER_GROUP_0, 0, 0x00000000ULL);
timer_set_counter_value(TIMER_GROUP_0, 1, 0x00000000ULL);
//Setting up Timer 0.0 for 25ms
/* Configure the alarm value and the interrupt on alarm. */
timer_set_alarm_value(TIMER_GROUP_0, 0, (TIMER_INTERVAL0x0_SEC * TIMER_SCALE));
timer_enable_intr(TIMER_GROUP_0,0);
// Function Parameters Run in Iram Null
timer_isr_register(TIMER_GROUP_0, 0, timer_group0_isr0,(void *) 0, ESP_INTR_FLAG_IRAM, NULL);
timer_start(TIMER_GROUP_0, 0);
//Setting up Timer 0.1 for 38khz
/* Configure the alarm value and the interrupt on alarm. */
timer_set_alarm_value(TIMER_GROUP_0, 1, (TIMER_INTERVAL0x1_SEC * TIMER_SCALE));
timer_enable_intr(TIMER_GROUP_0, 1);
// Function Parameters Run in Iram Null
timer_isr_register(TIMER_GROUP_0, 1, timer_group0_isr0,(void *) 1, ESP_INTR_FLAG_IRAM, NULL);
timer_start(TIMER_GROUP_0, 1);
}Code: Select all
void app_main()
{
// Initialize NVS
esp_err_t ret = nvs_flash_init();
if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
ESP_ERROR_CHECK(nvs_flash_erase());
ret = nvs_flash_init();
}
ESP_ERROR_CHECK(ret);
printf("Setting up Wifi\n");
vTaskDelay(500 / portTICK_PERIOD_MS);
wifi_init_sta();
inittimers();
vTaskDelay(25 / portTICK_PERIOD_MS);
}If i comment out the inittimers() function the module connects to wifi, if i comment out the wifi_init_sta(); the timer runs fine, but when i have both, they panic, with the following:
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[color=#008000]I (0) cpu_start: App cpu up.
I (376) heap_init: Initializing. RAM available for dynamic allocation:
I (383) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (389) heap_init: At 3FFB94F0 len 00026B10 (154 KiB): DRAM
I (395) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
I (401) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (408) heap_init: At 40090548 len 0000FAB8 (62 KiB): IRAM
I (414) cpu_start: Pro cpu start user code
I (96) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
Setting up Wifi
I (1185) wifi: wifi driver task: 3ffc0474, prio:23, stack:3584, core=0
I (1186) wifi: wifi firmware version: 202823a
I (1186) wifi: config NVS flash: enabled
I (1188) wifi: config nano formating: disabled
I (1193) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (1202) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (1235) wifi: Init dynamic tx buffer num: 32
I (1235) wifi: Init data frame dynamic rx buffer num: 32
I (1235) wifi: Init management frame dynamic rx buffer num: 32
I (1239) wifi: Init static rx buffer size: 1600
I (1243) wifi: Init static rx buffer num: 10
I (1247) wifi: Init dynamic rx buffer num: 32
I (1335) phy: phy_version: 3960, 5211945, Jul 18 2018, 10:40:07, 0, 0
I (1337) wifi: mode : sta (30:ae:a4:06:3d:ec)
I (1338) simple wifi: wifi_init_sta finished.
I (1340) simple wifi: connect to ap SSID:Veqtor password:Veqtor01428!
I (1348) gpio: GPIO[12]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1357) gpio: GPIO[13]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1366) gpio: GPIO[14]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1376) gpio: GPIO[17]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1385) gpio: GPIO[27]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (1394) gpio: GPIO[32]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
Initialising Timers!
I (1461) wifi: n:11 0, o:1 0, ap:255 255, sta:11 0, prof:1
I (3560) wifi: state: init -> auth (b0)
I (3570) wifi: state: auth -> assoc (0)
I (3575) wifi: state: assoc -> run (10)
I (3591) wifi: connected with Veqtor, channel 11
Guru Meditation Error: Core 0 panic'ed (Cache disabled but cached memory region accessed)
Core 0 register dump:
PC : 0x400e6b70 PS : 0x00060034 A0 : 0x40082538 A1 : 0x3ffb05f0
0x400e6b70: gpio_set_level at D:/msys32/home/Simon/esp/esp-idf/components/driver/gpio.c:238
0x40082538: _xt_lowint1 at D:/msys32/home/Simon/esp/esp-idf/components/freertos/xtensa_vectors.S:1105
A2 : 0x00000001 A3 : 0x3ffc01e0 A4 : 0x00000020 A5 : 0x4008cf98
0x4008cf98: _frxt_int_enter at D:/msys32/home/Simon/esp/esp-idf/components/freertos/portasm.S:119
A6 : 0x00000001 A7 : 0x00000000 A8 : 0x80082cca A9 : 0x00000000
A10 : 0x00000011 A11 : 0x00000000 A12 : 0x80083ac9 A13 : 0x3ffbff70
A14 : 0x00000026 A15 : 0x3ffb43d0 SAR : 0x00000001 EXCCAUSE: 0x00000007
EXCVADDR: 0x00000000 LBEG : 0x4000164d LEND : 0x40001667 LCOUNT : 0xfffffffd
Core 0 was running in ISR context:
EPC1 : 0x400835a9 EPC2 : 0x00000000 EPC3 : 0x00000000 EPC4 : 0x400e6b70
0x400835a9: esp_ptr_internal at D:/msys32/home/Simon/esp/esp-idf/components/soc/include/soc/soc_memory_layout.h:136 (discriminator 4)
(inlined by) spi_flash_read at D:/msys32/home/Simon/esp/esp-idf/components/spi_flash/flash_ops.c:527 (discriminator 4)
0x400e6b70: gpio_set_level at D:/msys32/home/Simon/esp/esp-idf/components/driver/gpio.c:238
Backtrace: 0x400e6b70:0x3ffb05f0 0x40082535:0x3ffb0610 0x400835a6:0x00000000
0x400e6b70: gpio_set_level at D:/msys32/home/Simon/esp/esp-idf/components/driver/gpio.c:238
0x40082535: _xt_lowint1 at D:/msys32/home/Simon/esp/esp-idf/components/freertos/xtensa_vectors.S:1105
0x400835a6: esp_ptr_internal at D:/msys32/home/Simon/esp/esp-idf/components/soc/include/soc/soc_memory_layout.h:136 (discriminator 4)
(inlined by) spi_flash_read at D:/msys32/home/Simon/esp/esp-idf/components/spi_flash/flash_ops.c:527 (discriminator 4)
Rebooting...
ets Jun 8 2016 00:22:57[/color]Any help would be much appreciated.
Thanks