p igmon / Mbed 2 deprecated DMA_I2S_Test

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Dependencies:   ST_401_84MHZ mbed

Files at this revision

API Documentation at this revision

Revision 1:530d6fb59a93, committed 2014-05-24

Comitter:
p_igmon
Date:
Sat May 24 12:07:17 2014 +0000
Parent:
0:0093b4cc5297
Commit message:
Nucleo F401RE I2S Transfer Example.
; DMA Dubble buffer mode.
; IRQ not yet.

Changed in this revision

ST_401_84MHZ.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ST_401_84MHZ.lib	Sat May 24 12:07:17 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/dreschpe/code/ST_401_84MHZ/#b9343c8b85ec

--- a/main.cpp	Sat May 17 04:58:58 2014 +0000
+++ b/main.cpp	Sat May 24 12:07:17 2014 +0000
@@ -1,51 +1,65 @@
+/*
+    Nucleo F401RE Board
+    DMA Transmit sample   
+
+    I2S Master Transmit (Enable MCK out)
+    Phillips Format 16bit
+    Dubble DMA Buffer
+
+
+
+
+*/
+
 #include "mbed.h"
 #include <math.h>
 #include "cmsis.h"
 #include "pinmap.h"
 #include "PinNames.h"
 #include "error.h"
+#include "stm32f401xe.h"
 #include "stm32f4xx.h"
 #include "stm32f4xx_hal.h"
 #include "stm32f4xx_hal_dma_ex.h"
+#include "stm32f4xx_hal_dma.h"
 #include "stm32f4xx_hal_i2s.h"
 #include "sine_wave.h"
 #include "saw_wave.h"
+#include "ST_F401_84MHZ.h" 
 
 Serial pc(SERIAL_TX, SERIAL_RX);
- 
 DigitalOut myled(LED1);
-#define I2S_BUFFERSIZE 256
 
-uint16_t TxBuff[I2S_BUFFERSIZE];
-uint32_t dmabuffer[2][256];
-//#define STM_PIN_DATA(MODE, FUNC)    (((MODE) << 8) | (FUNC))
+#define I2S_BUFFERSIZE 256
+#define DMA_TRANSFERCOUNT (I2S_BUFFERSIZE<<1) 
+int16_t dmabuffer[2][DMA_TRANSFERCOUNT];//DMA Double Buffer
 
 static const PinMap PinMap_I2S_MCK[] = {
     {PC_6,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
-    {PC_7,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
+//    {PC_7,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
     {NC,    NC,    0}
 };
 
 static const PinMap PinMap_I2S_CK[] = {
     {PB_10,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
     {PB_13,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
-    {PD_3,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
-    {PC_10,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
+//    {PD_3,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
+//    {PC_10,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
     {NC,    NC,    0}
 };
 
 static const PinMap PinMap_I2S_WS[] = {
     {PB_12,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
     {PB_9,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
-    {PA_15,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
+//    {PA_15,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
     {NC,    NC,    0}
 };
 
 static const PinMap PinMap_I2S_SD[] = {
     {PC_3,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
     {PB_15,  SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
-    {PC_12,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
-    {PD_6,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI3)},
+//    {PC_12,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_SPI3)},
+//    {PD_6,  SPI_3, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI3)},
     {NC,    NC,    0}
 };
 
@@ -55,11 +69,11 @@
     DMA_MEMORY_TO_PERIPH,
     DMA_PINC_DISABLE,
     DMA_MINC_ENABLE,             
-    DMA_PDATAALIGN_WORD,
+    DMA_PDATAALIGN_HALFWORD,
     DMA_MDATAALIGN_WORD,
-    DMA_CIRCULAR,
+    DMA_CIRCULAR,//DMA_PFCTRL,//
     DMA_PRIORITY_HIGH,
-    DMA_FIFOMODE_ENABLE,
+    DMA_FIFOMODE_DISABLE,//DMA_FIFOMODE_ENABLE,
     DMA_FIFO_THRESHOLD_HALFFULL,
     DMA_MBURST_SINGLE,
     DMA_PBURST_SINGLE
@@ -69,7 +83,7 @@
     DMA1_Stream4,
     DMA_InitType,
     HAL_UNLOCKED,
-    HAL_DMA_STATE_RESET,
+    HAL_DMA_STATE_RESET,//HAL_DMA_STATE_READY
     NULL,
     NULL,
     NULL,
@@ -80,7 +94,7 @@
 
 I2S_InitTypeDef my_I2S_InitType ={
     I2S_MODE_MASTER_TX,
-    I2S_STANDARD_MSB,
+    I2S_STANDARD_PHILLIPS,
     I2S_DATAFORMAT_16B,
     I2S_MCLKOUTPUT_ENABLE,
     I2S_AUDIOFREQ_44K,
@@ -100,7 +114,7 @@
 I2S_HandleTypeDef my_I2S_HandleTypeDef = {
      SPI2,
      my_I2S_InitType,
-     &TxBuff[0],  
+     (uint16_t*)&dmabuffer[0][0],  
      I2S_BUFFERSIZE,
      NULL,
      NULL,
@@ -114,40 +128,65 @@
 };    
 
 void init_dmabuffer(void){
-    uint32_t temp;
-    for (int i =0;i<256;i++){
-        temp = (uint32_t)((saw_wave[i]<<16) | sine_wave[i]);
-        dmabuffer[0][i] = temp;
-        dmabuffer[1][i] = temp;
+    for (int i =0;i < I2S_BUFFERSIZE;i++){
+        dmabuffer[0][i*2] = sine_wave[i];// 1st Buffer Lch 
+        dmabuffer[0][i*2+1] = saw_wave[i];// 1nd Buffer Rch 
+        dmabuffer[1][i*2] = sine_wave[i];// 2nd Buffer Lch
+        dmabuffer[1][i*2+1] = saw_wave[i];// 2nd Buffer Rch
     }
 }
+
+#define PLLI2S_N  271
+#define PLLI2S_R  2
     
 int main() {
-    pc.printf("Hello World !\n");
+    F401_init84 myinit(0); 
+    pc.baud(9600);
+    pc.printf("CPU SystemCoreClock is %d Hz\r\n", SystemCoreClock);
     init_dmabuffer();
- ///   I2S_init();
-    HAL_I2S_Init(&my_I2S_HandleTypeDef);
- // Configure the I2S pins
-    pinmap_pinout(PC_6, PinMap_MCK);
-    pinmap_pinout(PB_10, PinMap_CK);
-    pinmap_pinout(PB_12, PinMap_WS);
-    pinmap_pinout(PC_3, PinMap_SD);
+    
+    /* Configure the I2S PLL */
+    RCC->PLLI2SCFGR = (PLLI2S_N << 6) | (PLLI2S_R << 28);
+    /* Enable the I2S PLL */
+    RCC->CR |= RCC_CR_PLLI2SON;
+    /* Wait until the I2S PLL is ready */
+    while (!(RCC->CR & RCC_CR_PLLI2SRDY));
+
+    __SPI2_CLK_ENABLE();
+    __DMA1_CLK_ENABLE();
+
+    pinmap_pinout(PC_6, PinMap_I2S_MCK);
+    pinmap_pinout(PB_13, PinMap_I2S_CK);
+    pinmap_pinout(PB_12, PinMap_I2S_WS);
+    pinmap_pinout(PB_15, PinMap_I2S_SD);
+
     pin_mode(PC_6, PullUp);
-    pin_mode(PB_10, PullUp);
+    pin_mode(PB_13, PullUp);
     pin_mode(PB_12, PullUp);
-    pin_mode(PC_3, PullUp);
+    pin_mode(PB_15, PullUp);
+ 
+    if(HAL_DMA_Init(&DMA_HandleType)!= HAL_OK) pc.printf("Eror in HAL_DMA_Init \n\r");
+    
+    if (HAL_I2S_Init(&my_I2S_HandleTypeDef)!= HAL_OK)  pc.printf("Eror in HAL_I2S_Init \n\r");
+
+    volatile uint32_t *I2S_DR = &SPI2->DR; 
+    if(HAL_DMAEx_MultiBufferStart_IT(&DMA_HandleType ,(uint32_t)&dmabuffer[0][0] ,(uint32_t )I2S_DR ,(uint32_t)&dmabuffer[1][0] ,DMA_TRANSFERCOUNT)!=HAL_OK) pc.printf("Eror in HAL_DMAEx_MultiBufferStart_IT \n\r");
 
- // HAL_I2S_MspInit(I2S_HandleTypeDef *hi2s);
- //   HAL_I2S_IRQHandler(&my_I2S_HandleType);
-///    HAL_I2S_Transmit_DMA(&my_I2S_HandleTypeDef, &TxBuff[0], I2S_BUFFERSIZE);
-  
-    HAL_DMA_Init(&DMA_HandleType);
-    HAL_DMAEx_MultiBufferStart_IT(&DMA_HandleType ,(uint32_t)&dmabuffer[0][0] ,SPI2->DR ,(uint32_t)&dmabuffer[1][0] ,256);
-    //HAL_DMA_IRQHandler(&my_DMA_HamdleTypeDef);
-    //HAL_DMA_Start_IT(&my_DMA_HamdleTypeDef,NULL,NULL,256);
+     SPI2->I2SCFGR |= SPI_I2SCFGR_I2SE;
+     /* Enable Tx DMA Request */  
+     SPI2->CR2 |= SPI_CR2_TXDMAEN;
 
+    pc.printf("DMA M0AR =%4x M1AR =%4x PAR = %4x \n\r"  ,DMA1_Stream4->M0AR  ,DMA1_Stream4->M1AR ,DMA1_Stream4->PAR);
+    pc.printf("I2S CR2 = %4x \n\r" ,SPI2->CR2);
+    pc.printf("I2S SR = %4x \n\r" ,SPI2->SR);
+    pc.printf("I2S I2SCFGR = %4x \n\r" ,SPI2->I2SCFGR);
+    pc.printf("I2S I2SPR = %4x \n\r" ,SPI2->I2SPR);
+    pc.printf("RCC->PLLI2SCFGR = %4x \n\r" ,RCC->PLLI2SCFGR);
+ 
+    HAL_RCC_MCOConfig(uint32_t RCC_MCO2, RCC_MCO2SOURCE_PLLI2SCLK, RCC_MCODIV_5);
+ 
   while(1) { 
-      myled = !myled;
+        wait_ms(500);
   }
 }
  
\ No newline at end of file

--- a/mbed.bld	Sat May 17 04:58:58 2014 +0000
+++ b/mbed.bld	Sat May 24 12:07:17 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/ed8466a608b4
\ No newline at end of file
+http://mbed.org/users/mbed_official/code/mbed/builds/0b3ab51c8877
\ No newline at end of file