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CQエレクトロニクス・セミナ「実習・マイコンを動かしながら学ぶディジタル・フィルタ」で使うプログラムを,入力として STM32F746 の内蔵 ADC を使うように変更したもの. http://seminar.cqpub.co.jp/ccm/ES18-0020
Dependencies: mbed Array_Matrix BSP_DISCO_F746NG LCD_DISCO_F746NG TS_DISCO_F746NG
F746_SAI_IO_New/BSP_AudioIn_Overwrite.cpp
- Committer:
- MikamiUitOpen
- Date:
- 2017-10-07
- Revision:
- 0:ab7a35d87173
File content as of revision 0:ab7a35d87173:
//------------------------------------------------------------------------------ // Overwrite functuions and define calback function // for functions in stm32746g_discovery_audio.cpp // // Original version: BSP_overwrite.cpp by Nanase // https://developer.mbed.org/users/nanase/code/DISCO-F746NG_Oscilloscope/ //------------------------------------------------------------------------------ #include "BSP_AudioIn_Overwrite.hpp" // These three callback functions are modyfied by Mikami void BSP_AUDIO_IN_HalfTransfer_CallBack() { Mikami::SaiIO::Captured1st(); } void BSP_AUDIO_IN_TransferComplete_CallBack() { Mikami::SaiIO::Captured2nd(); } void BSP_AUDIO_IN_Error_CallBack() { Mikami::SaiIO::ErrorTrap(); } //-------------------------------------------------------------- // Followings are original by Nanase //-------------------------------------------------------------- DMA_HandleTypeDef hdma_sai_rx; void AUDIO_IN_SAIx_DMAx_IRQHandler() { HAL_DMA_IRQHandler(&hdma_sai_rx); } void BSP_AUDIO_IN_MspInit(SAI_HandleTypeDef *hsai, void *Params) { GPIO_InitTypeDef gpio_init_structure; /* Enable SAI clock */ AUDIO_IN_SAIx_CLK_ENABLE(); /* Enable SD GPIO clock */ AUDIO_IN_SAIx_SD_ENABLE(); /* CODEC_SAI pin configuration: SD pin */ gpio_init_structure.Pin = AUDIO_IN_SAIx_SD_PIN; gpio_init_structure.Mode = GPIO_MODE_AF_PP; gpio_init_structure.Pull = GPIO_NOPULL; gpio_init_structure.Speed = GPIO_SPEED_FAST; gpio_init_structure.Alternate = AUDIO_IN_SAIx_SD_AF; HAL_GPIO_Init(AUDIO_IN_SAIx_SD_GPIO_PORT, &gpio_init_structure); /* Enable Audio INT GPIO clock */ AUDIO_IN_INT_GPIO_ENABLE(); /* Audio INT pin configuration: input */ gpio_init_structure.Pin = AUDIO_IN_INT_GPIO_PIN; gpio_init_structure.Mode = GPIO_MODE_INPUT; gpio_init_structure.Pull = GPIO_NOPULL; gpio_init_structure.Speed = GPIO_SPEED_FAST; HAL_GPIO_Init(AUDIO_IN_INT_GPIO_PORT, &gpio_init_structure); /* Enable the DMA clock */ AUDIO_IN_SAIx_DMAx_CLK_ENABLE(); if(hsai->Instance == AUDIO_IN_SAIx) { /* Configure the hdma_sai_rx handle parameters */ hdma_sai_rx.Init.Channel = AUDIO_IN_SAIx_DMAx_CHANNEL; hdma_sai_rx.Init.Direction = DMA_PERIPH_TO_MEMORY; hdma_sai_rx.Init.PeriphInc = DMA_PINC_DISABLE; hdma_sai_rx.Init.MemInc = DMA_MINC_ENABLE; hdma_sai_rx.Init.PeriphDataAlignment = AUDIO_IN_SAIx_DMAx_PERIPH_DATA_SIZE; hdma_sai_rx.Init.MemDataAlignment = AUDIO_IN_SAIx_DMAx_MEM_DATA_SIZE; hdma_sai_rx.Init.Mode = DMA_CIRCULAR; hdma_sai_rx.Init.Priority = DMA_PRIORITY_HIGH; hdma_sai_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE; hdma_sai_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; hdma_sai_rx.Init.MemBurst = DMA_MBURST_SINGLE; hdma_sai_rx.Init.PeriphBurst = DMA_MBURST_SINGLE; hdma_sai_rx.Instance = AUDIO_IN_SAIx_DMAx_STREAM; /* Associate the DMA handle */ __HAL_LINKDMA(hsai, hdmarx, hdma_sai_rx); /* Deinitialize the Stream for new transfer */ HAL_DMA_DeInit(&hdma_sai_rx); /* Configure the DMA Stream */ HAL_DMA_Init(&hdma_sai_rx); } /* SAI DMA IRQ Channel configuration */ HAL_NVIC_SetPriority(AUDIO_IN_SAIx_DMAx_IRQ, AUDIO_IN_IRQ_PREPRIO, 0); HAL_NVIC_EnableIRQ(AUDIO_IN_SAIx_DMAx_IRQ); /* Audio INT IRQ Channel configuration */ HAL_NVIC_SetPriority(AUDIO_IN_INT_IRQ, AUDIO_IN_IRQ_PREPRIO, 0); HAL_NVIC_EnableIRQ(AUDIO_IN_INT_IRQ); }