Initial commit of library code, moved from leaftest repo

git-svn-id: https://leaflabs.googlecode.com/svn/trunk/library@69 749a229e-a60e-11de-b98f-4500b42dc123

1 files changed, 352 insertions, 0 deletions

diff --git a/src/stm32lib/examples/NVIC/DMA_WFIMode/main.c b/src/stm32lib/examples/NVIC/DMA_WFIMode/main.c
new file mode 100755
index 0000000..130c0a8
--- /dev/null
+++ b/src/stm32lib/examples/NVIC/DMA_WFIMode/main.c
@@ -0,0 +1,352 @@
+/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************

+* File Name          : main.c

+* Author             : MCD Application Team

+* Version            : V2.0.1

+* Date               : 06/13/2008

+* Description        : Main program body

+********************************************************************************

+* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS

+* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.

+* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,

+* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE

+* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING

+* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.

+*******************************************************************************/

+

+/* Includes ------------------------------------------------------------------*/

+#include "stm32f10x_lib.h"

+#include "platform_config.h"

+

+/* Private typedef -----------------------------------------------------------*/

+/* Private define ------------------------------------------------------------*/

+#define USART1_DR_Address    0x40013804

+

+/* Private macro -------------------------------------------------------------*/

+/* Private variables ---------------------------------------------------------*/

+NVIC_InitTypeDef  NVIC_InitStructure;

+DMA_InitTypeDef  DMA_InitStructure;

+

+vu32 LowPowerMode = 0;

+u16 DST_Buffer[10]= {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};

+ErrorStatus HSEStartUpStatus;

+

+/* Private function prototypes -----------------------------------------------*/

+void RCC_Configuration(void);

+void GPIO_Configuration(void);

+void EXTI_Configuration(void);

+void DMA_Configuration(void);

+void USART_Configuration(void);

+u8 Buffercmp16(u16* pBuffer1, u16* pBuffer2, u16 BufferLength);

+void Delay(vu32 nCount);

+

+/* Private functions ---------------------------------------------------------*/

+

+/*******************************************************************************

+* Function Name  : main

+* Description    : Main program.

+* Input          : None

+* Output         : None

+* Return         : None

+*******************************************************************************/

+int main(void)

+{

+#ifdef DEBUG

+  debug();

+#endif

+

+  /* Configure the system clocks */

+  RCC_Configuration();

+

+  /* Configure GPIOs */

+  GPIO_Configuration();

+

+  /* Configures the EXTI Lines */

+  EXTI_Configuration();

+  

+  /* Configures the DMA Channel */

+  DMA_Configuration();

+  

+  /* Configures the USART1 */

+  USART_Configuration();

+    

+#ifdef  VECT_TAB_RAM

+  /* Set the Vector Table base location at 0x20000000 */ 

+  NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);

+#else  /* VECT_TAB_FLASH  */

+  /* Set the Vector Table base location at 0x08000000 */ 

+  NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);

+#endif

+

+  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);

+  

+  /* Enable the DMA1 Channel 5 Interrupt */

+  NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel5_IRQChannel;

+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;

+  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;

+  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

+  NVIC_Init(&NVIC_InitStructure);

+

+  /* Enable the EXTI9_5  Interrupt */

+  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQChannel;

+  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;

+  NVIC_Init(&NVIC_InitStructure);

+    

+  while (1)

+  {

+    if(LowPowerMode == 1)

+    {

+

+      GPIO_ResetBits(GPIO_LED, GPIO_Pin_7 | GPIO_Pin_8);

+

+      /* Request to enter WFI mode */

+      __WFI();

+      LowPowerMode = 0;

+    }

+

+    Delay(0xFFFFF);

+    GPIO_WriteBit(GPIO_LED, GPIO_Pin_6, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIO_LED, GPIO_Pin_6)));

+  }

+}

+

+/*******************************************************************************

+* Function Name  : RCC_Configuration

+* Description    : Configures the different system clocks

+* Input          : None

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void RCC_Configuration(void)

+{

+  /* RCC system reset(for debug purpose) */

+  RCC_DeInit();

+

+  /* Enable HSE */

+  RCC_HSEConfig(RCC_HSE_ON);

+

+  /* Wait till HSE is ready */

+  HSEStartUpStatus = RCC_WaitForHSEStartUp();

+

+  if(HSEStartUpStatus == SUCCESS)

+  {

+    /* Enable Prefetch Buffer */

+    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

+

+    /* Flash 2 wait state */

+    FLASH_SetLatency(FLASH_Latency_2);

+ 

+    /* HCLK = SYSCLK */

+    RCC_HCLKConfig(RCC_SYSCLK_Div1); 

+

+    /* PCLK2 = HCLK */

+    RCC_PCLK2Config(RCC_HCLK_Div1); 

+

+    /* PCLK1 = HCLK/2 */

+    RCC_PCLK1Config(RCC_HCLK_Div2);

+

+    /* PLLCLK = 8MHz * 9 = 72 MHz */

+    RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);

+

+    /* Enable PLL */ 

+    RCC_PLLCmd(ENABLE);

+

+    /* Wait till PLL is ready */

+    while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)

+    {

+    }

+

+    /* Select PLL as system clock source */

+    RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);

+

+    /* Wait till PLL is used as system clock source */

+    while(RCC_GetSYSCLKSource() != 0x08)

+    {

+    }

+  }

+

+  /* Enable USART1, GPIOA, GPIO_LED, GPIO_KEY_BUTTON and AFIO clocks */

+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA | 

+                         RCC_APB2Periph_GPIO_LED | RCC_APB2Periph_GPIO_KEY_BUTTON |

+                         RCC_APB2Periph_AFIO, ENABLE);  

+

+  /* DMA1 clock enable */

+  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);

+}

+

+/*******************************************************************************

+* Function Name  : GPIO_Configuration

+* Description    : Configures the used GPIO pins.

+* Input          : None

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void GPIO_Configuration(void)

+{

+  GPIO_InitTypeDef  GPIO_InitStructure;

+

+  /* Configure GPIO_LED Pin 6, GPIO_LED Pin 7 and GPIO_LED Pin 8 as

+     Output push-pull */

+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 |GPIO_Pin_7 | GPIO_Pin_8;

+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;

+  GPIO_Init(GPIO_LED, &GPIO_InitStructure);

+  

+  /* Configure USART1 Rx (PA.10) as input floating */

+  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;

+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

+  GPIO_Init(GPIOA, &GPIO_InitStructure);

+

+  /* Configure GPIO KEY Button Pin as input floating */

+  GPIO_InitStructure.GPIO_Pin = GPIO_PIN_KEY_BUTTON;

+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;

+  GPIO_Init(GPIO_KEY_BUTTON, &GPIO_InitStructure);  

+}

+

+/*******************************************************************************

+* Function Name  : EXTI_Configuration

+* Description    : Configures the used EXTI line.

+* Input          : None

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void EXTI_Configuration(void)

+{

+  EXTI_InitTypeDef EXTI_InitStructure;

+

+  /* Connect KEY Button EXTI Line to GPIO KEY Button Pin */

+  GPIO_EXTILineConfig(GPIO_PORT_SOURCE_KEY_BUTTON, GPIO_PIN_SOURCE_KEY_BUTTON);

+

+  /* Configure KEY Button EXTI Line to generate an interrupt on falling edge */  

+  EXTI_InitStructure.EXTI_Line = EXTI_LINE_KEY_BUTTON;

+  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;

+  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;

+  EXTI_InitStructure.EXTI_LineCmd = ENABLE;

+  EXTI_Init(&EXTI_InitStructure);  

+}

+

+/*******************************************************************************

+* Function Name  : DMA_Configuration

+* Description    : Configures the used DMA Channel.

+* Input          : None

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void DMA_Configuration(void)

+{

+  DMA_InitTypeDef  DMA_InitStructure;

+

+  /* DMA1 Channel5 Config */

+  DMA_DeInit(DMA1_Channel5);

+  DMA_InitStructure.DMA_PeripheralBaseAddr = USART1_DR_Address;

+  DMA_InitStructure.DMA_MemoryBaseAddr = (u32)DST_Buffer;

+  DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;

+  DMA_InitStructure.DMA_BufferSize = 10;

+  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;

+  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;

+  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;

+  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;

+  DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;

+  DMA_InitStructure.DMA_Priority = DMA_Priority_High;

+  DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;

+  DMA_Init(DMA1_Channel5, &DMA_InitStructure);

+

+  /* Enable Channel5 Transfer complete interrupt */

+  DMA_ITConfig(DMA1_Channel5, DMA_IT_TC, ENABLE);

+  

+  /* DMA1 Channel5 enable */

+  DMA_Cmd(DMA1_Channel5, ENABLE);

+}

+

+/*******************************************************************************

+* Function Name  : USART_Configuration

+* Description    : Configures the USART1.

+* Input          : None

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void USART_Configuration(void)

+{

+  USART_InitTypeDef  USART_InitStructure;

+

+/* USART1 configuration ------------------------------------------------------*/

+  /* USART1 configured as follow:

+        - BaudRate = 9600 baud  

+        - Word Length = 8 Bits

+        - One Stop Bit

+        - No parity

+        - Hardware flow control disabled (RTS and CTS signals)

+        - Receive and transmit enabled

+  */

+  USART_InitStructure.USART_BaudRate = 9600;

+  USART_InitStructure.USART_WordLength = USART_WordLength_8b;

+  USART_InitStructure.USART_StopBits = USART_StopBits_1;

+  USART_InitStructure.USART_Parity = USART_Parity_No;

+  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;

+  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

+

+  USART_Init(USART1, &USART_InitStructure);

+  

+  USART_DMACmd(USART1, USART_DMAReq_Rx, ENABLE);

+  

+  /* Enable the USART1 */  

+  USART_Cmd(USART1, ENABLE);

+}

+

+/*******************************************************************************

+* Function Name  : Buffercmp16

+* Description    : Compares two buffers.

+* Input          : - pBuffer1, pBuffer2: buffers to be compared.

+*                : - BufferLength: buffer's length

+* Output         : None

+* Return         : 0: pBuffer1 identical to pBuffer2

+*                  1: pBuffer1 differs from pBuffer2

+*******************************************************************************/

+u8 Buffercmp16(u16* pBuffer1, u16* pBuffer2, u16 BufferLength)

+{

+  while(BufferLength--)

+  {

+    if(*pBuffer1 != *pBuffer2)

+    {

+      return 1;

+    }

+

+    pBuffer1++;

+    pBuffer2++;

+  }

+  return 0;

+}

+

+/*******************************************************************************

+* Function Name  : Delay

+* Description    : Inserts a delay time.

+* Input          : nCount: specifies the delay time length.

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void Delay(vu32 nCount)

+{

+  for(; nCount != 0; nCount--);

+}

+

+#ifdef  DEBUG

+/*******************************************************************************

+* Function Name  : assert_failed

+* Description    : Reports the name of the source file and the source line number

+*                  where the assert_param error has occurred.

+* Input          : - file: pointer to the source file name

+*                  - line: assert_param error line source number

+* Output         : None

+* Return         : None

+*******************************************************************************/

+void assert_failed(u8* file, u32 line)

+{ 

+  /* User can add his own implementation to report the file name and line number,

+     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

+

+  /* Infinite loop */

+  while (1)

+  {

+  }

+}

+#endif

+

+/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/