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112 lines
3.1 KiB
112 lines
3.1 KiB
#include <stdio.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/semphr.h"
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#include "driver/gpio.h"
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#include "driver/spi_master.h"
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#include <string.h>
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// definicion de pines
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// Definir los pines utilizados para MOSI, MISO, SCLK y CS
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#define PIN_NUM_MOSI 13
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#define PIN_NUM_MISO 12
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#define PIN_NUM_CLK 14
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#define PIN_NUM_CS 15
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#define IRQ_PIN 26
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// parámetros ADC
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#define LEN_MAP_bytes 24 // cantidad de bitts en la memoria desde 0x1 a 0xD, adicionando 8 bits para el comando
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#define FAST_COMMAND 0b00
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#define STATIC_READ 0b01
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#define INCREMENTAL_WRITE 0b10
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#define INCREMENTAL_READ 0b11
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uint8_t register_map[LEN_MAP_bytes] = {0};
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#define ADCDATA_index 0
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#define CONFIG0_index 1
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#define CONFIG1_index 2
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#define CONFIG2_index 3
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#define CONFIG3_index 4
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#define IRQ_index 5
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#define MUX_index 6
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#define SCAN_index 7
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#define TIMER_index 10
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#define OFFSETCAL_index 13
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#define GAINCAL_index 16
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#define LOCK_index 23
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#define ADC_CONV_START_FC 0b1010
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#define ADC_STBY_MODE_FC 0b1011
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#define ADC_SHDN_MODE_FC 0b1100
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#define FULL_SHDN_MODE_FC 0b1101
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#define FULL_RESET_FC 0b1110
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#define COMMAND_READ_ADC 0b01000001
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// variables SPI
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spi_device_handle_t *spi_handle;
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spi_bus_config_t *bus_cfg_SPI;
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spi_device_interface_config_t *mcp3561_cfg_SPI;
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// Declaración de la cola de semáforo
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SemaphoreHandle_t xSemaphore;
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void IRAM_ATTR isr_IRQ_handler(void *arg) {
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BaseType_t xHigherPriorityTaskWoken = pdFALSE;
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xSemaphoreGiveFromISR(xSemaphore, &xHigherPriorityTaskWoken);
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// if (xHigherPriorityTaskWoken == pdTRUE) {
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// portYIELD_FROM_ISR();
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// }
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}
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// Tarea de base (bare-metal)
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void base_task(void *pvParameters) {
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while (1) {
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// Espera al semáforo
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if (xSemaphoreTake(xSemaphore, portMAX_DELAY) == pdTRUE) {
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// La tarea responde al semáforo aquí
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// Realiza el trabajo necesario
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printf("- ");
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}
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}
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}
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void app_main() {
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// Inicializa el semáforo
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xSemaphore = xSemaphoreCreateBinary();
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// configuración PIN
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gpio_config_t irq_config;
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irq_config.intr_type = GPIO_INTR_POSEDGE;
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irq_config.mode = GPIO_MODE_INPUT;
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irq_config.pin_bit_mask = (1ULL << IRQ_PIN);
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irq_config.pull_down_en = GPIO_PULLDOWN_DISABLE;
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irq_config.pull_up_en = GPIO_PULLDOWN_ENABLE;
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gpio_config(&irq_config);
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gpio_install_isr_service(0); // Instala el servicio de interrupción en el núcleo 0
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gpio_isr_handler_add(IRQ_PIN, isr_IRQ_handler, NULL); // Asocia la función de interrupción al pin
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// Configura la rutina de interrupción para activar el semáforo
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// ...
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// Crea la tarea de base
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// xTaskCreate(base_task, "base_task", 2048, NULL, 15, NULL);
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// xTaskCreatePinnedToCore(base_task, "base_task", 2048, NULL, 15, NULL, 0);
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// Inicia el sistema operativo en tiempo real
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// vTaskStartScheduler();
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while(1){
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// Espera al semáforo
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if (xSemaphoreTake(xSemaphore, portMAX_DELAY) == pdTRUE) {
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// La tarea responde al semáforo aquí
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// Realiza el trabajo necesario
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printf("- ");
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}
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}
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}
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