p igmon
Simple Exmple
Dependencies: ST_401_84MHZ mbed
http://www.geocities.jp/micro_diys/
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
--- /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