[问答]

为输入捕获和Sigma Delta ADC发现了2个DMA错误怎么解决？

396 ADC

问答对人有帮助，内容完整，我也想知道答案 0 你好！我只想报告我发现了两个错误。HAL_DMA 函数没有错误。我假设预定义常量或枚举存在一些错误。介绍我将 STM32CubeIDE 1.7.0 与 STM32F373VBTx 和固件 V1.11.3 一起使用我要为两个定时器启用 DMA。tiM17 和 TIM16。我还将为 Sigma Delta ADC 启用 DMA。目标目标是使用 TIM17 和 TIM16，它们将用作输入捕获并将计数器值保存到数组中。对于 Sigma Delta ADC，我想将 ADC 值存储到数组中。方法 - 输入捕获首先，我使用此代码启用输入捕获。 volatile static uint16_t input_capture0[2] = {0}; volatile static uint16_t input_capture1[2] = {0}; void STM32_PLC_Start_Input_Capture(TIM_HandleTypeDef* htim17, TIM_HandleTypeDef* htim16) { /* * Input capture for measuring frequency * For TIM17 and TIM16 * Timer clock: 48 Mhz * Prescaler: 4799 * Counter: 65535 (0xffff) * Update frequency: 0.1526 Hz (1/0.1526 = 6.5535 seconds) * Example: For every second, it will count 10000 * Lowest frequency measurement: 1/(0xFFFF0.0001) = 0.1526 Hz Highest frequency measurement: 1/(10.0001) = 10000 Hz / if(HAL_TIM_IC_Start_DMA(htim16, TIM_CHANNEL_1, (uint32_t)input_capture1, 2) != HAL_OK) Error_Handler(); if(HAL_TIM_IC_Start_DMA(htim17, TIM_CHANNEL_1, (uint32_t)input_capture0, 2) != HAL_OK) Error_Handler(); } 它们都是 DMA 用于循环模式。上面数组的目的是我可以通过调用函数来计算频率 static float compute_frequency(uint16_t input_capture[]) { /* * Typical worst case scenarios: * T1: 0xFFFF - T0: 0x0 * T1: 0x0 - T0: 0xFFFF * T1: 0x7FFF - T0: 0x7FFF * T1: 0x0 - T0: 0x0 / if(input_capture[1] > input_capture[0]) { return (float) 1/((input_capture[1] - input_capture[0])0.0001f); } else if(input_capture[1] < input_capture[0]) { return (float) 1/((input_capture[1] + 0xFFFF - input_capture[0])0.0001f); } else if(input_capture[1] == 0x7FFF && input_capture[0] == 0x7FFF){ return (float) 1/(0xFFFF0.0001f); } else { return 0; } } float STM32_PLC_Input_Capture_Get(uint8_t i) { if(i == 0) return compute_frequency((uint16_t)input_capture0); else return compute_frequency((uint16_t)input_capture1); } TIM17 和 TIM16 具有相同的配置。方法 - Sigma Delta ADC 为了启用 Sigma Delta ADC，我调用了这个函数。 volatile static int16_t SDADC1_Single[9]; volatile static int16_t SDADC2_Single[3]; volatile static int16_t SDADC3_Differential[5]; static float SDADC_Single_Calibration_Gain[12] = {0}; static float SDADC_Single_Calibration_Bias[12] = {0}; static float SDADC_Differential_Calibration_Gain[5] = {0}; static float SDADC_Differential_Calibration_Bias[5] = {0}; TIM_HandleTypeDef handler_tim12; TIM_HandleTypeDef handler_tim13; SDADC_HandleTypeDef handler_sdadc1; SDADC_HandleTypeDef handler_sdadc2; SDADC_HandleTypeDef handler_sdadc3; void STM32_PLC_Start_Analog_Input(TIM_HandleTypeDef htim12, TIM_HandleTypeDef* htim13, SDADC_HandleTypeDef* hsdadc1, SDADC_HandleTypeDef* hsdadc2, SDADC_HandleTypeDef* hsdadc3) { /* * For TIM12, TIM13 * Timer clock: 48 Mhz * Prescaler: 0 * Counter: 48000 (0xbb80) * Update frequency: 1000 Hz / HAL_TIM_OC_Start(htim13, TIM_CHANNEL_1); / TIM13 Channel 1 is trigger source for SDADC1 / HAL_TIM_OC_Start(htim12, TIM_CHANNEL_1); / TIM12 Channel 1 is trigger source for SDADC2 / HAL_TIM_OC_Start(htim12, TIM_CHANNEL_2); / TIM12 Channel 2 is trigger source for SDADC3 / if (HAL_SDADC_CalibrationStart(hsdadc1, SDADC_CALIBRATION_SEQ_1) != HAL_OK) Error_Handler(); if (HAL_SDADC_CalibrationStart(hsdadc2, SDADC_CALIBRATION_SEQ_1) != HAL_OK) Error_Handler(); if (HAL_SDADC_CalibrationStart(hsdadc3, SDADC_CALIBRATION_SEQ_1) != HAL_OK) Error_Handler(); if (HAL_SDADC_PollForCalibEvent(hsdadc1, HAL_MAX_DELAY) != HAL_OK) Error_Handler(); if (HAL_SDADC_PollForCalibEvent(hsdadc2, HAL_MAX_DELAY) != HAL_OK) Error_Handler(); if (HAL_SDADC_PollForCalibEvent(hsdadc3, HAL_MAX_DELAY) != HAL_OK) Error_Handler(); if(HAL_SDADC_InjectedStart_DMA(hsdadc1, (uint32_t)SDADC1_Single, 9) != HAL_OK) Error_Handler(); if(HAL_SDADC_InjectedStart_DMA(hsdadc2, (uint32_t)SDADC2_Single, 3) != HAL_OK) Error_Handler(); if(HAL_SDADC_InjectedStart_DMA(hsdadc3, (uint32_t)SDADC3_Differential, 5) != HAL_OK) Error_Handler(); /* Save / handler_tim13 = htim13; handler_tim12 = htim12; handler_sdadc1 = hsdadc1; handler_sdadc2 = hsdadc2; handler_sdadc3 = hsdadc3; } 这是 SDADC1、SDADC2 和 SDADC3 的 DMA 配置。我还选择了 Injected Conversion 并使用定时器来调用 SDADC 函数。以及用于 SDADC 的定时器 TIM12 和 TIM13。我还可以在 STM32 处理器运行时更改 Sigma Delta ADC 的增益。 / Inline is only for optimization / static inline int16_t array_to_pointer(int16_t array[]){ return array; /* This return the address / } void STM32_PLC_Analog_Input_Set_Gain_Offset(uint8_t sdadc, uint8_t configuration_index, uint8_t gain, uint16_t offset) { / Initial / SDADC_ConfParamTypeDef ConfParamStruct = {0}; ConfParamStruct.CommonMode = SDADC_COMMON_MODE_VSSA; SDADC_HandleTypeDef handler; uint8_t length_DMA; uint32_t array_DMA; / Stop DMA / switch(sdadc){ case 1: / Stop DMA for SDADC1 / if(HAL_SDADC_InjectedStop_DMA(handler_sdadc1) != HAL_OK) Error_Handler(); handler = handler_sdadc1; length_DMA = 9; array_DMA = (uint32_t)array_to_pointer((int16_t)SDADC1_Single); ConfParamStruct.InputMode = SDADC_INPUT_MODE_SE_ZERO_REFERENCE; break; case 2: / Stop DMA for SDADC2 / if(HAL_TIM_OC_Stop(handler_tim12, TIM_CHANNEL_1)) Error_Handler(); if(HAL_SDADC_InjectedStop_DMA(handler_sdadc2) != HAL_OK) Error_Handler(); handler = handler_sdadc2; length_DMA = 3; array_DMA = (uint32_t)array_to_pointer((int16_t)SDADC2_Single); ConfParamStruct.InputMode = SDADC_INPUT_MODE_SE_ZERO_REFERENCE; break; case 3: / Stop DMA for SDADC3 / if(HAL_SDADC_InjectedStop_DMA(handler_sdadc3) != HAL_OK) Error_Handler(); handler = handler_sdadc3; length_DMA = 5; array_DMA = (uint32_t)array_to_pointer((int16_t)SDADC3_Differential); ConfParamStruct.InputMode = SDADC_INPUT_MODE_DIFF; break; default: / Stop DMA for SDADC1 / if(HAL_SDADC_InjectedStop_DMA(handler_sdadc1) != HAL_OK) Error_Handler(); handler = handler_sdadc1; length_DMA = 9; array_DMA = (uint32_t)array_to_pointer((int16_t)SDADC1_Single); ConfParamStruct.InputMode = SDADC_INPUT_MODE_SE_ZERO_REFERENCE; break; } / Set gain and offset / switch(gain){ case 0: ConfParamStruct.Gain = SDADC_GAIN_1_2; break; case 1: ConfParamStruct.Gain = SDADC_GAIN_1; break; case 2: ConfParamStruct.Gain = SDADC_GAIN_2; break; case 3: ConfParamStruct.Gain = SDADC_GAIN_4; break; case 4: ConfParamStruct.Gain = SDADC_GAIN_8; break; case 5: ConfParamStruct.Gain = SDADC_GAIN_16; break; case 6: ConfParamStruct.Gain = SDADC_GAIN_32; break; default: ConfParamStruct.Gain = SDADC_GAIN_1; offset = 0; break; } ConfParamStruct.Offset = offset; / Set calibration / if (HAL_SDADC_PrepareChannelConfig(handler, configuration_index, &ConfParamStruct) != HAL_OK) Error_Handler(); / Start ADC again / if (HAL_SDADC_CalibrationStart(handler, SDADC_CALIBRATION_SEQ_1) != HAL_OK) Error_Handler(); if (HAL_SDADC_PollForCalibEvent(handler, HAL_MAX_DELAY) != HAL_OK) Error_Handler(); if(HAL_SDADC_InjectedStart_DMA(handler, array_DMA, length_DMA) != HAL_OK) Error_Handler(); } 结果 - 输入捕获* 这些数组在 STM32 处理器运行时会得到不同的值。 volatile static uint16_t input_capture0[2] = {0}; volatile static uint16_t input_capture1[2] = {0}; 我可以阅读它们，但只有 input_capture0 (TIM17) 获取更新值。只有 input_capture1 (TIM16) 获取值一次，然后就什么都不会发生了。结果 - Sigma Delta ADC 当我尝试更改 Sigma Delta ADC 的增益时，我调用了这个函数。这只是一个示例： if(HAL_SDADC_InjectedStop_DMA(mySDADCHandler) != HAL_OK) Error_Handler(); 然后在函数内部，调用中止HAL_DMA。 HAL_StatusTypeDef HAL_SDADC_InjectedStop_DMA(SDADC_HandleTypeDef hsdadc) { HAL_StatusTypeDef status; / Check parameters / assert_param(IS_SDADC_ALL_INSTANCE(hsdadc->Instance)); / Check SDADC state / if((hsdadc->State != HAL_SDADC_STATE_INJ) && (hsdadc->State != HAL_SDADC_STATE_REG_INJ)) { / Return error status / status = HAL_ERROR; } else { / Clear JDMAEN bit in SDADC_CR1 register / hsdadc->Instance->CR1 &= ~(SDADC_CR1_JDMAEN); / Stop current DMA transfer / if(HAL_DMA_Abort(hsdadc->hdma) != HAL_OK) { / Set SDADC in error state */ hsdadc->State = HAL_SDADC_STATE_ERROR; status = HAL_ERROR; } 0
2022-12-27 06:32:31　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 47 个回答。邀请回答 chm5 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 42 个回答。邀请回答 hgimtk 该类别下有 36 个回答。邀请回答 HengDu 该类别下有 31 个回答。邀请回答 hwp0415229 该类别下有 30 个回答。邀请回答可口可甜该类别下有 30 个回答。邀请回答麻酱该类别下有 28 个回答。邀请回答 andyfly7 该类别下有 28 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答 jiangwenwen 该类别下有 28 个回答。邀请回答 kingnet6688 该类别下有 28 个回答。邀请回答 ldliu 该类别下有 27 个回答。邀请回答成长的小师弟该类别下有 27 个回答。邀请回答云汉007 该类别下有 27 个回答。邀请回答颜刚YanG 该类别下有 27 个回答。邀请回答柱子图宁该类别下有 27 个回答。邀请回答 bluepink 该类别下有 27 个回答。邀请回答法规处发该类别下有 27 个回答。邀请回答哼小曲该类别下有 26 个回答。邀请回答举报 caosurround 相关推荐 • sigma_delta和PWM的区别是什么？ 691 • ADC Delta-Sigma范围混乱 2392 • Sigma-Delta ADC的基本原理及性能指标是什么？ 3303 • 16通道20位Delta Sigma ADC的数据缓冲带在PSOC 3和PSOC 5中工作 1380 • 在sigma delta ADC上有1个模拟输入电压变低是何原因 272 • 什么是Delta-Sigma转换器？ADS1232特点及应用是什么？ 2574 • 扩展的Delta-Sigma ADC数据表？ 1628 • Sigma Delta ADC WaitForSettling功能怎么使用？ 2053 • Sigma-Delta ADC从行为级仿真到电路实现的设计方法是什么？ 1116 • Delta-Sigma调制器技术被引入到PLL当中的原因 4785 1个回答

答案对人有帮助，有参考价值 0 我找到了输入捕获的解决方案。这是 STM32CubeIDE 1.7.0 中的一个错误。解决方案：移动MX_DMA_Init(); /* Initialize all configured peripherals / MX_GPIO_Init(); MX_DMA_Init(); <--- To here MX_DAC1_Init(); MX_DAC2_Init(); MX_RTC_Init(); MX_SPI2_Init(); MX_TIM2_Init(); MX_TIM5_Init(); MX_SPI1_Init(); MX_TIM4_Init(); MX_SDADC1_Init(); MX_SDADC2_Init(); MX_SDADC3_Init(); MX_CAN_Init(); MX_USART1_UART_Init(); MX_TIM6_Init(); MX_TIM12_Init(); MX_TIM13_Init(); MX_TIM16_Init(); MX_USB_DEVICE_Init(); MX_FATFS_Init(); MX_TIM17_Init(); <--- From here MX_TIM19_Init(); / USER CODE BEGIN 2 */ 结果：输入捕获 + DMA 工作 SDADC + DMA 有效，但我只得到 -0x8000 = -32768 (int16_t)，因为我所有的输入都连接到 GND。似乎即使我有循环缓冲区，它仍然像正常模式一样工作。如果我在 SDADC 输入上施加更高的电压，我将无法更改这些值。嗯...

2022-12-27 10:19:14 评论举报李秀云