2025-03-04 15:21:41 +08:00
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2025-03-08 10:17:00 +08:00
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#include "FluxMod.h"
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2025-03-04 15:21:41 +08:00
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static const char *TAG = "MASTER_TEST";
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/*<2A><><EFBFBD><EFBFBD><EFBFBD>豸<EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD>洢<EFBFBD><E6B4A2>ַ*/
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const mb_parameter_descriptor_t device_parameters[] = {
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{ CID_INP_DATA_0, STR("Data_channel_0"), STR("Volts"), MB_DEVICE_ADDR1, MB_PARAM_INPUT, 0, 2,
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INPUT_OFFSET(input_data0), PARAM_TYPE_FLOAT, 4, OPTS( -10, 10, 1 ), PAR_PERMS_READ_WRITE_TRIGGER },
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{ CID_HOLD_DATA_0, STR("Humidity_1"), STR("%rH"), MB_DEVICE_ADDR1, MB_PARAM_HOLDING, 0, 2,
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HOLD_OFFSET(holding_data0), PARAM_TYPE_FLOAT, 4, OPTS( 0, 100, 1 ), PAR_PERMS_READ_WRITE_TRIGGER },
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};
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// Calculate number of parameters in the table
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const uint16_t num_device_parameters = (sizeof(device_parameters)/sizeof(device_parameters[0]));
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2025-03-08 10:17:00 +08:00
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esp_err_t modbus_master_init(void)
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2025-03-04 15:21:41 +08:00
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{
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// Initialize and start Modbus controller
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mb_communication_info_t comm = {
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.port = MB_PORT_NUM,
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.mode = MB_MODE_RTU,
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.baudrate = MB_DEV_SPEED,
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.parity = MB_PARITY_NONE
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};
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void* master_handler = NULL;
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esp_err_t err = mbc_master_init(MB_PORT_SERIAL_MASTER, &master_handler);
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MB_RETURN_ON_FALSE((master_handler != NULL), ESP_ERR_INVALID_STATE, TAG,
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"mb controller initialization fail.");
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MB_RETURN_ON_FALSE((err == ESP_OK), ESP_ERR_INVALID_STATE, TAG,
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"mb controller initialization fail, returns(0x%x).", (int)err);
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err = mbc_master_setup((void*)&comm);
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MB_RETURN_ON_FALSE((err == ESP_OK), ESP_ERR_INVALID_STATE, TAG,
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"mb controller setup fail, returns(0x%x).", (int)err);
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// Set UART pin numbers
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err = uart_set_pin(MB_PORT_NUM, CONFIG_MB_UART_TXD, CONFIG_MB_UART_RXD,
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UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
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MB_RETURN_ON_FALSE((err == ESP_OK), ESP_ERR_INVALID_STATE, TAG,
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"mb serial set pin failure, uart_set_pin() returned (0x%x).", (int)err);
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err = mbc_master_start();
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MB_RETURN_ON_FALSE((err == ESP_OK), ESP_ERR_INVALID_STATE, TAG,
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"mb controller start fail, returned (0x%x).", (int)err);
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// Set driver mode to Half Duplex
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err = uart_set_mode(MB_PORT_NUM, UART_MODE_RS485_HALF_DUPLEX);
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MB_RETURN_ON_FALSE((err == ESP_OK), ESP_ERR_INVALID_STATE, TAG,
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"mb serial set mode failure, uart_set_mode() returned (0x%x).", (int)err);
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vTaskDelay(5);
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err = mbc_master_set_descriptor(&device_parameters[0], num_device_parameters);
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MB_RETURN_ON_FALSE((err == ESP_OK), ESP_ERR_INVALID_STATE, TAG,
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"mb controller set descriptor fail, returns(0x%x).", (int)err);
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ESP_LOGI(TAG, "Modbus master stack initialized...");
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return err;
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}
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