87 lines
1.9 KiB
C++
Executable File
87 lines
1.9 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 <string.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 "mcp2521.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 CAN_INT_PIN GPIO_NUM_21
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#define EXTERNAL_TRIGGER GPIO_NUM_26
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extern "C" 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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vTaskDelay(100 / portTICK_PERIOD_MS);
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spi_bus_config_t spi_bus;
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MCP2521_Hardware_Handle_ESP hardware_mcp2521(
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VSPI_HOST,
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&spi_bus,
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SPI_PIN_MOSI,
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SPI_PIN_MISO,
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SPI_PIN_SCLK,
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SPI_PIN_CS0,
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CAN_INT_PIN
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);
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MCP2521_Command_Interface mcp2521(&hardware_mcp2521);
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gpio_set_level(EXTERNAL_TRIGGER, false);
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printf("CANCTRL: %x\n", mcp2521.read_reg(MCP2521_CANCTRL));
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printf("RX_STATUS: %x\n", mcp2521.read_rx_status());
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printf("STATUS: %x\n", mcp2521.read_status());
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uint8_t data[16];
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hardware_mcp2521.read(MCP2521_OP_READ, data, 16, MCP2521_RXB0CTRL);
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for(int i=0; i<0x10; i++) {
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printf("%x ", i);
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for(int j=0; j<8; j++) {
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printf("%u", (data[i] >> (7-j)) & 1);
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}
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printf("\n");
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}
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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 = !flag;
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vTaskDelay(100 / portTICK_PERIOD_MS);
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}
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}
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