113 lines
2.5 KiB
C++
Executable File
113 lines
2.5 KiB
C++
Executable File
/*
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* SPDX-FileCopyrightText: 2010-2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: CC0-1.0
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*/
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#include <stdio.h>
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#include <inttypes.h>
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#include "sdkconfig.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 "freertos/queue.h"
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#include "esp_chip_info.h"
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#include "esp_flash.h"
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#include "esp_system.h"
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#include "driver/gpio.h"
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#include "driver/spi_master.h"
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#include "mcp2125.hpp"
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#define SPI_PIN_CS0 GPIO_NUM_5
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#define SPI_PIN_SCLK GPIO_NUM_18
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#define SPI_PIN_MISO GPIO_NUM_19
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#define SPI_PIN_MOSI GPIO_NUM_23
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#define EXTERNAL_TRIGGER GPIO_NUM_26
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#ifdef __cplusplus
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extern "C" {
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#endif
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void app_main() {
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printf("Hello world!\n");
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const gpio_num_t LED_PIN = GPIO_NUM_2;
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gpio_set_direction(LED_PIN, GPIO_MODE_OUTPUT);
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gpio_set_direction(EXTERNAL_TRIGGER, GPIO_MODE_OUTPUT);
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gpio_set_level(EXTERNAL_TRIGGER, true);
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spi_bus_config_t spi_config = {
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.mosi_io_num = SPI_PIN_MOSI,
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.miso_io_num = SPI_PIN_MISO,
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.sclk_io_num = SPI_PIN_SCLK,
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.quadwp_io_num = -1,
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.quadhd_io_num = -1,
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.flags = SPICOMMON_BUSFLAG_MASTER
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};
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spi_device_interface_config_t mp2125_devcfg = {
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.command_bits = 8,
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.address_bits = 0,
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.dummy_bits = 0,
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.mode = 0,
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.duty_cycle_pos = 128,
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.cs_ena_pretrans = 1,
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.cs_ena_posttrans = 1,
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.clock_speed_hz = 10000,
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.spics_io_num = SPI_PIN_CS0,
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.flags = SPI_DEVICE_HALFDUPLEX,
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.queue_size = 5,
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};
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spi_device_handle_t mp2125_handle;
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spi_bus_initialize(VSPI_HOST, &spi_config, SPI_DMA_CH_AUTO);
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spi_bus_add_device(VSPI_HOST, &mp2125_devcfg, &mp2125_handle);
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char rxBuffer[32] = {0};
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spi_transaction_t transaction0 = { // RESET
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.cmd = 0b11000000,
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.length = 0,
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.rxlength = 2 * 8,
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.tx_buffer = NULL,
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.rx_buffer = rxBuffer
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};
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spi_transaction_t transaction1 = { // READ STAT/S
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.cmd = 0b10110000,
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.length = 0,
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.rxlength = 2 * 8,
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.tx_buffer = NULL,
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.rx_buffer = rxBuffer
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};
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vTaskDelay(100 / portTICK_PERIOD_MS);
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gpio_set_level(EXTERNAL_TRIGGER, false);
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spi_device_transmit(mp2125_handle, &transaction0);
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spi_device_transmit(mp2125_handle, &transaction1);
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gpio_set_level(EXTERNAL_TRIGGER, true);
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bool flag = true;
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while (true) {
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gpio_set_level(LED_PIN, flag);
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flag = dummy_function(flag);
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vTaskDelay(100 / portTICK_PERIOD_MS);
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}
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}
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#ifdef __cplusplus
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}
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#endif |