254 lines
8.8 KiB
C
254 lines
8.8 KiB
C
#include "dac161s997.h"
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#include "stm32f4xx_hal.h" // 添加HAL库头文件
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#include "spi.h" // 添加SPI头文件
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#define _DAC_CHIP_RESET_CODE 0xC33C
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#define _ERR_CONFIG_SPI_TIMOUT_400MS (7 << 1)
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// 定义调试变量
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volatile uint8_t dac161s997_init_status = 0xFF; // 初始化状态 (0=成功, 0xFF=未初始化)
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volatile uint8_t dac161s997_error_count = 0; // 错误计数
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volatile uint8_t dac161s997_test_step = 0; // 当前测试步骤
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volatile uint8_t dac161s997_operation_status = 0; // 操作状态 (0=正常, 1=错误)
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volatile uint16_t dac161s997_config_reg = 0; // 配置寄存器值
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volatile uint16_t dac161s997_status_reg = 0; // 状态寄存器值
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volatile uint16_t dac161s997_data_reg = 0; // 数据寄存器值
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volatile float dac161s997_current_value = 0.0f; // 当前输出电流值
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volatile uint8_t dac161s997_direction = 0; // 电流变化方向 (0=递减, 1=递增)
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volatile float dac161s997_target_current = 0.0f; // 目标电流值
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volatile uint16_t dac161s997_dac_code = 0; // DAC代码值
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volatile uint8_t dac161s997_cmd_status = 0; // 命令执行状态
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volatile uint8_t dac161s997_spi_phase = 0; // SPI通信阶段
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volatile uint8_t dac161s997_last_error = 0; // 最后一次错误代码
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volatile uint8_t dac161s997_retry_count = 0; // 重试计数
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volatile uint8_t dac161s997_verify_status = 0; // 验证状态
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// 添加SPI通信调试变量定义
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volatile uint8_t dac161s997_spi_state = SPI_STATE_IDLE;
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volatile uint8_t dac161s997_spi_error = SPI_ERR_NONE;
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volatile uint32_t dac161s997_spi_timeout = 0;
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volatile uint8_t dac161s997_spi_buffer[4] = {0};
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volatile uint8_t dac161s997_spi_bytes = 0;
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volatile uint8_t dac161s997_cs_state = 0;
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volatile uint32_t dac161s997_last_spi_time = 0;
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volatile uint32_t dac161s997_spi_retry_count = 0;
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// 添加SPI通信辅助函数
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static int32_t dac161s997_spi_transaction(uint8_t *data, uint8_t bytes, uint32_t timeout)
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{
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uint8_t rx_data[4] = {0}; // Add receive buffer
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// 拉低CS
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HAL_GPIO_WritePin(DAC1_CS_GPIO_Port, DAC1_CS_Pin, GPIO_PIN_RESET);
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osDelay(5);
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// SPI传输
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int32_t status = spi_transmit_receive(&hspi1, data, rx_data, bytes);
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// 拉高CS
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HAL_GPIO_WritePin(DAC1_CS_GPIO_Port, DAC1_CS_Pin, GPIO_PIN_SET);
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osDelay(5);
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return status;
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}
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/**
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* @brief 向DAC161S997芯片写入寄存器值
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*
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* @param dac_type DAC芯片类型
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* @param reg 要写入的寄存器地址
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* @param data 要写入的数据，16位
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*/
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void dac161s997_write_reg(dac_type_t dac_type, uint8_t reg, uint16_t data)
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{
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uint8_t data_buffer[3] = {0, 0, 0};
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data_buffer[0] = reg;
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data_buffer[1] = data >> 8;
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data_buffer[2] = data;
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// 使用新的SPI事务函数
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if(dac161s997_spi_transaction(data_buffer, 3, 1000) != SUCCESS) {
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dac161s997_error_count++;
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dac161s997_last_error = dac161s997_spi_error;
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}
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// 添加短暂延时确保数据稳定
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HAL_Delay(1);
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}
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/**
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* @brief 从DAC161S997芯片读取寄存器值
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*
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* @param dac_type DAC芯片类型
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* @param reg 要读取的寄存器地址
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* @param data 存储读取的数据的指针
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* @return int32_t 0表示成功，非0表示失败
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*/
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int32_t dac161s997_read_reg(dac_type_t dac_type, uint8_t reg, uint16_t *data)
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{
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uint8_t data_buffer[3] = {0, 0, 0};
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data_buffer[0] = reg | 0x80; // 设置读位
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dac161s997_spi_state = SPI_STATE_READ_START;
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// 使用新的SPI事务函数
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if(dac161s997_spi_transaction(data_buffer, 3, 1000) != SUCCESS) {
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dac161s997_error_count++;
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dac161s997_last_error = dac161s997_spi_error;
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dac161s997_spi_state = SPI_STATE_ERROR;
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return FAILURE;
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}
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*data = (data_buffer[1] << 8) | data_buffer[2];
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dac161s997_spi_state = SPI_STATE_READ_END;
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// 添加短暂延时确保数据稳定
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HAL_Delay(1);
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return SUCCESS;
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}
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/**
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* @brief 初始化DAC161S997 DAC设备
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*/
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int dac161s997_init(dac_type_t dac_type, float current)
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{
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dac161s997_write_reg(dac_type, DAC161S997_RESET_REG, _DAC_CHIP_RESET_CODE);
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//王绪洁版本初始化代码
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dac161s997_write_reg(dac_type, DAC161S997_ERR_LOW_REG, 0xFFFF);
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dac161s997_write_reg(dac_type, DAC161S997_ERR_CONFIG_REG, 0x070E);
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// uint16_t reg_value = 0;
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// dac161s997_write_reg(dac_type, DAC161S997_RESET_REG, _DAC_CHIP_RESET_CODE);
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// // 1. 写保护寄存器（解锁）
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// dac161s997_write_reg(dac_type, DAC161S997_PROTECT_REG_WR_REG, 0x00);
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// HAL_Delay(2);
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// // 2. 设置输出范围为4-20mA（XFR寄存器）
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// dac161s997_write_reg(dac_type, DAC161S997_XFR_REG, 0x0A);
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// HAL_Delay(2);
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// // 验证XFR寄存器
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// if(dac161s997_read_reg(dac_type, DAC161S997_XFR_REG, ®_value) == SUCCESS) {
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// if(reg_value != 0x0A) {
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// // XFR寄存器写入失败
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// dac161s997_error_count++;
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// return -1; // 初始化失败
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// }
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// }
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// // 3. 使能输出（NOP寄存器）
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// dac161s997_write_reg(dac_type, DAC161S997_NOP_REG, 0x01);
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// HAL_Delay(2);
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// // 验证NOP寄存器
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// if(dac161s997_read_reg(dac_type, DAC161S997_NOP_REG, ®_value) == SUCCESS) {
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// if(reg_value != 0x01) {
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// // NOP寄存器写入失败
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// dac161s997_error_count++;
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// return -2; // 初始化失败
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// }
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// }
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// // 4. 写错误配置寄存器
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// dac161s997_write_reg(dac_type, DAC161S997_ERR_CONFIG_REG, 0x070E);
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// HAL_Delay(2);
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// // 验证ERR_CONFIG寄存器
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// if(dac161s997_read_reg(dac_type, DAC161S997_ERR_CONFIG_REG, ®_value) == SUCCESS) {
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// if(reg_value != 0x070E) {
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// // ERR_CONFIG寄存器写入失败
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// dac161s997_error_count++;
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// return -3; // 初始化失败
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// }
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// }
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// // 5. 写低报警寄存器
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// dac161s997_write_reg(dac_type, DAC161S997_ERR_LOW_REG, 0xFFFF);
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// HAL_Delay(2);
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// // 6. 写高报警寄存器（可选）
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// dac161s997_write_reg(dac_type, DAC161S997_ERR_HIGH_REG, 0x0000);
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// HAL_Delay(2);
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// // 初始化成功
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// dac161s997_init_status = 0; // 标记初始化成功
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// return 0;
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}
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/**
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* @brief DAC161S997芯片输出函数
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*
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* @param dac_type DAC芯片类型
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* @param current 需要设置的电流值，单位：毫安
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*/
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void dac161s997_output(dac_type_t dac_type, float current)
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{
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// // 限制电流范围在4-20mA之间
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// if (current < 4.0f) current = 4.0f;
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// if (current > 20.0f) current = 20.0f;
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// uint32_t dac_code = (uint32_t)(((current - 4.0f) * 65535.0f) / 16.0f);
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// uint8_t data_buffer[3] = {DAC161S997_DACCODE_REG, dac_code >> 8, dac_code};
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// HAL_GPIO_WritePin(DAC1_CS_GPIO_Port, DAC1_CS_Pin, GPIO_PIN_RESET);
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// spi_transmit_receive(&hspi1, data_buffer, 3);
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// HAL_GPIO_WritePin(DAC1_CS_GPIO_Port, DAC1_CS_Pin, GPIO_PIN_SET);
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//uint32_t dac_code = (uint32_t)((current * 65535.0f) / 24.0f);
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uint32_t dac_code = (uint32_t)(5461.0f);
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uint8_t data_buffer[3] = {0, 0, 0};
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data_buffer[0] = DAC161S997_DACCODE_REG;
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data_buffer[1] = dac_code >> 8;
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data_buffer[2] = dac_code;
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dac161s997_init(dac_type, current);
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HAL_GPIO_WritePin(DAC1_CS_GPIO_Port, DAC1_CS_Pin, GPIO_PIN_RESET);
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spi_transmit_receive(&hspi1, data_buffer, data_buffer, 3);
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HAL_GPIO_WritePin(DAC1_CS_GPIO_Port, DAC1_CS_Pin, GPIO_PIN_SET);
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}
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/**
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* @brief DAC161S997诊断函数
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*
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* 读取并存储所有关键寄存器的值，用于调试
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*
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* @param dac_type DAC芯片类型
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* @return int 0表示成功，非0表示失败
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*/
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int dac161s997_diagnose(dac_type_t dac_type)
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{
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uint16_t reg_value = 0;
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// 读取XFR寄存器（输出范围）
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if(dac161s997_read_reg(dac_type, DAC161S997_XFR_REG, ®_value) == SUCCESS) {
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dac161s997_config_reg = reg_value; // 存储到调试变量
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}
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// 读取NOP寄存器（输出使能）
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if(dac161s997_read_reg(dac_type, DAC161S997_NOP_REG, ®_value) == SUCCESS) {
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dac161s997_status_reg = reg_value; // 存储到调试变量
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}
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// 读取ERR_CONFIG寄存器
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if(dac161s997_read_reg(dac_type, DAC161S997_ERR_CONFIG_REG, ®_value) == SUCCESS) {
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// 可以存储到其他调试变量
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}
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// 读取DACCODE寄存器（当前DAC值）
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if(dac161s997_read_reg(dac_type, DAC161S997_DACCODE_REG, ®_value) == SUCCESS) {
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dac161s997_data_reg = reg_value; // 存储到调试变量
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}
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// 读取STATUS寄存器（设备状态）
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if(dac161s997_read_reg(dac_type, 0x00, ®_value) == SUCCESS) {
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// STATUS寄存器地址通常是0x00
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}
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return 0;
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}
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// #ifndef DAC161S997_RANGE_REG
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// #define DAC161S997_RANGE_REG 0x01
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// #endif
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// #ifndef DAC161S997_OUTPUT_ENABLE_REG
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// #define DAC161S997_OUTPUT_ENABLE_REG 0x02
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// #endif
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