Part of MicroGen4 Music Synthesizer Program. (But not test it yet.) I2S ,DMA ,Stereo ,16Bit Dac(PCM1781) See detail: http://www.geocities.jp/micro_diys/index2
Now added generate Saw Wave to DAC function in generate(); You will hear Stereo saw wave sound now.
more info: http://www.geocities.jp/micro_diys/i2s_test_sample/i2s_test_sample.html
stm32f4xx_hal_msp.cpp@1:48f506a7b488, 2017-09-21 (annotated)
- Committer:
- p_igmon
- Date:
- Thu Sep 21 10:20:50 2017 +0000
- Revision:
- 1:48f506a7b488
- Parent:
- 0:dc88722ab141
Added Sample Saw Wave in Function Generate.
; DAC PCM1781 Can Output Saw Wave now.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
p_igmon | 0:dc88722ab141 | 1 | /** |
p_igmon | 0:dc88722ab141 | 2 | ****************************************************************************** |
p_igmon | 0:dc88722ab141 | 3 | * File Name : stm32f4xx_hal_msp.c |
p_igmon | 0:dc88722ab141 | 4 | * Date : 22/06/2014 09:00:07 |
p_igmon | 0:dc88722ab141 | 5 | * Description : This file provides code for the MSP Initialization |
p_igmon | 0:dc88722ab141 | 6 | * and de-Initialization codes. |
p_igmon | 0:dc88722ab141 | 7 | ****************************************************************************** |
p_igmon | 0:dc88722ab141 | 8 | * |
p_igmon | 0:dc88722ab141 | 9 | * COPYRIGHT(c) 2014 STMicroelectronics |
p_igmon | 0:dc88722ab141 | 10 | * |
p_igmon | 0:dc88722ab141 | 11 | * Redistribution and use in source and binary forms, with or without modification, |
p_igmon | 0:dc88722ab141 | 12 | * are permitted provided that the following conditions are met: |
p_igmon | 0:dc88722ab141 | 13 | * 1. Redistributions of source code must retain the above copyright notice, |
p_igmon | 0:dc88722ab141 | 14 | * this list of conditions and the following disclaimer. |
p_igmon | 0:dc88722ab141 | 15 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
p_igmon | 0:dc88722ab141 | 16 | * this list of conditions and the following disclaimer in the documentation |
p_igmon | 0:dc88722ab141 | 17 | * and/or other materials provided with the distribution. |
p_igmon | 0:dc88722ab141 | 18 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
p_igmon | 0:dc88722ab141 | 19 | * may be used to endorse or promote products derived from this software |
p_igmon | 0:dc88722ab141 | 20 | * without specific prior written permission. |
p_igmon | 0:dc88722ab141 | 21 | * |
p_igmon | 0:dc88722ab141 | 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
p_igmon | 0:dc88722ab141 | 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
p_igmon | 0:dc88722ab141 | 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
p_igmon | 0:dc88722ab141 | 25 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
p_igmon | 0:dc88722ab141 | 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
p_igmon | 0:dc88722ab141 | 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
p_igmon | 0:dc88722ab141 | 28 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
p_igmon | 0:dc88722ab141 | 29 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
p_igmon | 0:dc88722ab141 | 30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
p_igmon | 0:dc88722ab141 | 31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
p_igmon | 0:dc88722ab141 | 32 | * |
p_igmon | 0:dc88722ab141 | 33 | ****************************************************************************** |
p_igmon | 0:dc88722ab141 | 34 | */ |
p_igmon | 0:dc88722ab141 | 35 | |
p_igmon | 0:dc88722ab141 | 36 | #include "synthesizer.h" |
p_igmon | 0:dc88722ab141 | 37 | extern DigitalOut myled; |
p_igmon | 0:dc88722ab141 | 38 | |
p_igmon | 0:dc88722ab141 | 39 | extern DMA_HandleTypeDef hdma_i2s2_ext_tx; |
p_igmon | 0:dc88722ab141 | 40 | |
p_igmon | 0:dc88722ab141 | 41 | void HAL_I2S_MspInit(I2S_HandleTypeDef* hi2s) |
p_igmon | 0:dc88722ab141 | 42 | { |
p_igmon | 0:dc88722ab141 | 43 | |
p_igmon | 0:dc88722ab141 | 44 | // GPIO_InitTypeDef GPIO_InitStruct; |
p_igmon | 0:dc88722ab141 | 45 | if(hi2s->Instance==SPI2) |
p_igmon | 0:dc88722ab141 | 46 | { |
p_igmon | 0:dc88722ab141 | 47 | /* Peripheral clock enable */ |
p_igmon | 0:dc88722ab141 | 48 | __SPI2_CLK_ENABLE(); |
p_igmon | 0:dc88722ab141 | 49 | |
p_igmon | 0:dc88722ab141 | 50 | /**I2S2 GPIO Configuration |
p_igmon | 0:dc88722ab141 | 51 | PC3 ------> I2S2_SD |
p_igmon | 0:dc88722ab141 | 52 | PB10 ------> I2S2_CK |
p_igmon | 0:dc88722ab141 | 53 | PB12 ------> I2S2_WS |
p_igmon | 0:dc88722ab141 | 54 | PC6 ------> I2S2_MCK |
p_igmon | 0:dc88722ab141 | 55 | */ |
p_igmon | 0:dc88722ab141 | 56 | /* |
p_igmon | 0:dc88722ab141 | 57 | GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_6; |
p_igmon | 0:dc88722ab141 | 58 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
p_igmon | 0:dc88722ab141 | 59 | GPIO_InitStruct.Pull = GPIO_NOPULL; |
p_igmon | 0:dc88722ab141 | 60 | GPIO_InitStruct.Speed = GPIO_SPEED_LOW; |
p_igmon | 0:dc88722ab141 | 61 | GPIO_InitStruct.Alternate = GPIO_AF5_SPI2; |
p_igmon | 0:dc88722ab141 | 62 | HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); |
p_igmon | 0:dc88722ab141 | 63 | |
p_igmon | 0:dc88722ab141 | 64 | GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_12; |
p_igmon | 0:dc88722ab141 | 65 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
p_igmon | 0:dc88722ab141 | 66 | GPIO_InitStruct.Pull = GPIO_NOPULL; |
p_igmon | 0:dc88722ab141 | 67 | GPIO_InitStruct.Speed = GPIO_SPEED_LOW; |
p_igmon | 0:dc88722ab141 | 68 | GPIO_InitStruct.Alternate = GPIO_AF5_SPI2; |
p_igmon | 0:dc88722ab141 | 69 | HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); |
p_igmon | 0:dc88722ab141 | 70 | */ |
p_igmon | 0:dc88722ab141 | 71 | /* Peripheral DMA init*/ |
p_igmon | 0:dc88722ab141 | 72 | |
p_igmon | 0:dc88722ab141 | 73 | hdma_i2s2_ext_tx.Instance = DMA1_Stream4; |
p_igmon | 0:dc88722ab141 | 74 | hdma_i2s2_ext_tx.Init.Channel = DMA_CHANNEL_0; |
p_igmon | 0:dc88722ab141 | 75 | hdma_i2s2_ext_tx.Init.Direction = DMA_MEMORY_TO_PERIPH; |
p_igmon | 0:dc88722ab141 | 76 | hdma_i2s2_ext_tx.Init.PeriphInc = DMA_PINC_DISABLE; |
p_igmon | 0:dc88722ab141 | 77 | hdma_i2s2_ext_tx.Init.MemInc = DMA_MINC_ENABLE; |
p_igmon | 0:dc88722ab141 | 78 | hdma_i2s2_ext_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD; |
p_igmon | 0:dc88722ab141 | 79 | hdma_i2s2_ext_tx.Init.MemDataAlignment = DMA_MDATAALIGN_WORD; |
p_igmon | 0:dc88722ab141 | 80 | hdma_i2s2_ext_tx.Init.Mode = DMA_NORMAL; |
p_igmon | 0:dc88722ab141 | 81 | hdma_i2s2_ext_tx.Init.Priority = DMA_PRIORITY_LOW; |
p_igmon | 0:dc88722ab141 | 82 | hdma_i2s2_ext_tx.Init.FIFOMode = DMA_FIFOMODE_ENABLE; |
p_igmon | 0:dc88722ab141 | 83 | hdma_i2s2_ext_tx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL; |
p_igmon | 0:dc88722ab141 | 84 | hdma_i2s2_ext_tx.Init.MemBurst = DMA_MBURST_SINGLE; |
p_igmon | 0:dc88722ab141 | 85 | hdma_i2s2_ext_tx.Init.PeriphBurst = DMA_PBURST_SINGLE; |
p_igmon | 0:dc88722ab141 | 86 | HAL_DMA_Init(&hdma_i2s2_ext_tx); |
p_igmon | 0:dc88722ab141 | 87 | |
p_igmon | 0:dc88722ab141 | 88 | __HAL_LINKDMA(hi2s,hdmatx,hdma_i2s2_ext_tx); |
p_igmon | 0:dc88722ab141 | 89 | // myled =1; |
p_igmon | 0:dc88722ab141 | 90 | } |
p_igmon | 0:dc88722ab141 | 91 | |
p_igmon | 0:dc88722ab141 | 92 | } |
p_igmon | 0:dc88722ab141 | 93 | |
p_igmon | 0:dc88722ab141 | 94 | void HAL_I2S_MspDeInit(I2S_HandleTypeDef* hi2s) |
p_igmon | 0:dc88722ab141 | 95 | { |
p_igmon | 0:dc88722ab141 | 96 | |
p_igmon | 0:dc88722ab141 | 97 | if(hi2s->Instance==SPI2) |
p_igmon | 0:dc88722ab141 | 98 | { |
p_igmon | 0:dc88722ab141 | 99 | /* Peripheral clock disable */ |
p_igmon | 0:dc88722ab141 | 100 | __SPI2_CLK_DISABLE(); |
p_igmon | 0:dc88722ab141 | 101 | |
p_igmon | 0:dc88722ab141 | 102 | /**I2S2 GPIO Configuration |
p_igmon | 0:dc88722ab141 | 103 | PC3 ------> I2S2_SD |
p_igmon | 0:dc88722ab141 | 104 | PB10 ------> I2S2_CK |
p_igmon | 0:dc88722ab141 | 105 | PB12 ------> I2S2_WS |
p_igmon | 0:dc88722ab141 | 106 | PC6 ------> I2S2_MCK |
p_igmon | 0:dc88722ab141 | 107 | */ |
p_igmon | 0:dc88722ab141 | 108 | // HAL_GPIO_DeInit(GPIOC, GPIO_PIN_3|GPIO_PIN_6); |
p_igmon | 0:dc88722ab141 | 109 | |
p_igmon | 0:dc88722ab141 | 110 | // HAL_GPIO_DeInit(GPIOB, GPIO_PIN_10|GPIO_PIN_12); |
p_igmon | 0:dc88722ab141 | 111 | |
p_igmon | 0:dc88722ab141 | 112 | /* Peripheral DMA DeInit*/ |
p_igmon | 0:dc88722ab141 | 113 | HAL_DMA_DeInit(hi2s->hdmatx); |
p_igmon | 0:dc88722ab141 | 114 | } |
p_igmon | 0:dc88722ab141 | 115 | |
p_igmon | 0:dc88722ab141 | 116 | } |
p_igmon | 0:dc88722ab141 | 117 | |
p_igmon | 0:dc88722ab141 | 118 | |
p_igmon | 0:dc88722ab141 | 119 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
p_igmon | 0:dc88722ab141 | 120 | |
p_igmon | 0:dc88722ab141 | 121 | |
p_igmon | 0:dc88722ab141 | 122 | |
p_igmon | 0:dc88722ab141 | 123 |