ESP32-C3-S32的TWAI问题
Posted: Wed Feb 23, 2022 8:11 am
- 目前使用ESP32-C3-S32芯片的TWAI功能，使用例程测试GPIO2/GPIO3引脚是否输出时，出现IO无数据波形的情况，请问有人知道是什么问题吗？
- void app_main(void)
- {
- twai_message_t message;
- //Initialize configuration structures using macro initializers
- twai_general_config_t g_config = TWAI_GENERAL_CONFIG_DEFAULT(TX_GPIO_NUM, RX_GPIO_NUM, TWAI_MODE_NORMAL);
- twai_timing_config_t t_config = TWAI_TIMING_CONFIG_500KBITS();
- twai_filter_config_t f_config = TWAI_FILTER_CONFIG_ACCEPT_ALL();
- //Install TWAI driver
- if (twai_driver_install(&g_config, &t_config, &f_config) == ESP_OK)
- {
- ESP_LOGI(EXAMPLE_TAG, "Driver installed\n");
- }
- else
- {
- ESP_LOGI(EXAMPLE_TAG, "Failed to install driver\n");
- return;
- }
- //Start TWAI driver
- if (twai_start() == ESP_OK)
- {
- ESP_LOGI(EXAMPLE_TAG, "Driver started\n");
- }
- else
- {
- ESP_LOGI(EXAMPLE_TAG, "Failed to start driver\n");
- return;
- }
- message.identifier = 0xAAAA;
- message.extd = 1;
- message.data_length_code = 8;
- for (int i = 0; i < 8; i++)
- {
- message.data[i] = 0x0A;
- }
- while(1)
- {
- //Queue message for transmission
- if (twai_transmit(&message, pdMS_TO_TICKS(10000)) == ESP_OK)
- {
- ESP_LOGI(EXAMPLE_TAG,"Message queued for transmission\n");
- }
- else
- {
- ESP_LOGI(EXAMPLE_TAG,"Failed to queue message for transmission\n");
- }
- vTaskDelay(pdMS_TO_TICKS(10000));
- }
- vTaskDelete(NULL);
- }