I have been quite happily using these devices:
https://core-electronics.com.au/esp32-s ... tired.html
However, when I went to upload a ESP IDF Example I appear to have bricked, not one but 3 devices.
How can I recover the devices?
What did I do wrong?
The code used is:
Code: Select all
[Codebox=c file=Untitled.c]/* GPIO Example
This example code is in the Public Domain (or CC0 licensed, at your option.)
Unless required by applicable law or agreed to in writing, this
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "driver/gpio.h"
/**
* Brief:
* This test code shows how to configure gpio and how to use gpio interrupt.
*
* GPIO status:
* GPIO18: output (ESP32C2/ESP32H2 uses GPIO8 as the second output pin)
* GPIO19: output (ESP32C2/ESP32H2 uses GPIO9 as the second output pin)
* GPIO4: input, pulled up, interrupt from rising edge and falling edge
* GPIO5: input, pulled up, interrupt from rising edge.
*
* Note. These are the default GPIO pins to be used in the example. You can
* change IO pins in menuconfig.
*
* Test:
* Connect GPIO18(8) with GPIO4
* Connect GPIO19(9) with GPIO5
* Generate pulses on GPIO18(8)/19(9), that triggers interrupt on GPIO4/5
*
*/
#define GPIO_OUTPUT_IO_0 CONFIG_GPIO_OUTPUT_0
#define GPIO_OUTPUT_IO_1 CONFIG_GPIO_OUTPUT_1
#define GPIO_OUTPUT_PIN_SEL ((1ULL<<GPIO_OUTPUT_IO_0) | (1ULL<<GPIO_OUTPUT_IO_1))
/*
* Let's say, GPIO_OUTPUT_IO_0=18, GPIO_OUTPUT_IO_1=19
* In binary representation,
* 1ULL<<GPIO_OUTPUT_IO_0 is equal to 0000000000000000000001000000000000000000 and
* 1ULL<<GPIO_OUTPUT_IO_1 is equal to 0000000000000000000010000000000000000000
* GPIO_OUTPUT_PIN_SEL 0000000000000000000011000000000000000000
* */
#define GPIO_INPUT_IO_0 CONFIG_GPIO_INPUT_0
#define GPIO_INPUT_IO_1 CONFIG_GPIO_INPUT_1
#define GPIO_INPUT_PIN_SEL ((1ULL<<GPIO_INPUT_IO_0) | (1ULL<<GPIO_INPUT_IO_1))
/*
* Let's say, GPIO_INPUT_IO_0=4, GPIO_INPUT_IO_1=5
* In binary representation,
* 1ULL<<GPIO_INPUT_IO_0 is equal to 0000000000000000000000000000000000010000 and
* 1ULL<<GPIO_INPUT_IO_1 is equal to 0000000000000000000000000000000000100000
* GPIO_INPUT_PIN_SEL 0000000000000000000000000000000000110000
* */
#define ESP_INTR_FLAG_DEFAULT 0
static QueueHandle_t gpio_evt_queue = NULL;
static void IRAM_ATTR gpio_isr_handler(void* arg)
{
uint32_t gpio_num = (uint32_t) arg;
xQueueSendFromISR(gpio_evt_queue, &gpio_num, NULL);
}
static void gpio_task_example(void* arg)
{
uint32_t io_num;
for (;;) {
if (xQueueReceive(gpio_evt_queue, &io_num, portMAX_DELAY)) {
printf("GPIO[%"PRIu32"] intr, val: %d\n", io_num, gpio_get_level(io_num));
}
}
}
void app_main(void)
{
//zero-initialize the config structure.
gpio_config_t io_conf = {};
//disable interrupt
io_conf.intr_type = GPIO_INTR_DISABLE;
//set as output mode
io_conf.mode = GPIO_MODE_OUTPUT;
//bit mask of the pins that you want to set,e.g.GPIO18/19
io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL;
//disable pull-down mode
io_conf.pull_down_en = 0;
//disable pull-up mode
io_conf.pull_up_en = 0;
//configure GPIO with the given settings
gpio_config(&io_conf);
//interrupt of rising edge
io_conf.intr_type = GPIO_INTR_POSEDGE;
//bit mask of the pins, use GPIO4/5 here
io_conf.pin_bit_mask = GPIO_INPUT_PIN_SEL;
//set as input mode
io_conf.mode = GPIO_MODE_INPUT;
//enable pull-up mode
io_conf.pull_up_en = 1;
gpio_config(&io_conf);
//change gpio interrupt type for one pin
gpio_set_intr_type(GPIO_INPUT_IO_0, GPIO_INTR_ANYEDGE);
//create a queue to handle gpio event from isr
gpio_evt_queue = xQueueCreate(10, sizeof(uint32_t));
//start gpio task
xTaskCreate(gpio_task_example, "gpio_task_example", 2048, NULL, 10, NULL);
//install gpio isr service
gpio_install_isr_service(ESP_INTR_FLAG_DEFAULT);
//hook isr handler for specific gpio pin
gpio_isr_handler_add(GPIO_INPUT_IO_0, gpio_isr_handler, (void*) GPIO_INPUT_IO_0);
//hook isr handler for specific gpio pin
gpio_isr_handler_add(GPIO_INPUT_IO_1, gpio_isr_handler, (void*) GPIO_INPUT_IO_1);
//remove isr handler for gpio number.
gpio_isr_handler_remove(GPIO_INPUT_IO_0);
//hook isr handler for specific gpio pin again
gpio_isr_handler_add(GPIO_INPUT_IO_0, gpio_isr_handler, (void*) GPIO_INPUT_IO_0);
printf("Minimum free heap size: %"PRIu32" bytes\n", esp_get_minimum_free_heap_size());
int cnt = 0;
while (1) {
printf("cnt: %d\n", cnt++);
vTaskDelay(1000 / portTICK_PERIOD_MS);
gpio_set_level(GPIO_OUTPUT_IO_0, cnt % 2);
gpio_set_level(GPIO_OUTPUT_IO_1, cnt % 2);
}
}
[/Codebox]