STm32F3的MEMS的测试

瑟瑟秋风提问时间：2013-3-29 21:21 /

#include "stm32f30x.h"
#include "stm32f3_discovery_lsm303dlhc.h"
#define uchar unsigned char
#define uint unsigned int
uchar ge,shi,bai,qian,wan,shiwan; //????

unsigned char Buffer[6];
unsigned char XOffset;
unsigned char YOffset;
static void USART_Config(void)
{
USART_InitTypeDef USART_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;

/* Enable GPIOD clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC|RCC_AHBPeriph_GPIOE , ENABLE);

/* Enable USART1 APB clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);

/* Configure the HSI as USART clock */
RCC_USARTCLKConfig(RCC_USART1CLK_HSI);

/* USART1 Pins configuration ***********************************************/

/* Connect pin to Periph */
GPIO_PinAFConfig(GPIOC, GPIO_PinSource4, GPIO_AF_7);
GPIO_PinAFConfig(GPIOE, GPIO_PinSource1, GPIO_AF_7);

/* Configure pins as AF pushpull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStructure);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_Init(GPIOE, &GPIO_InitStructure);

/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- Stop Bit = 1 Stop Bit
- Parity = No Parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/

USART_DeInit(USART1);
USART_InitStructure.USART_BaudRate = 115200;
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);



/* Enable USART1 */
USART_Cmd(USART1, ENABLE);

/* Before entering the USART in STOP mode the REACK flag must be checked to ensure the USART RX is ready */
while(USART_GetFlagStatus(USART1, USART_FLAG_REACK) == RESET)
{}

/* Enable USART STOP mode by setting the UESM bit in the CR1 register.*/
// USART_STOPModeCmd(USART1, ENABLE);

/* Enable the wake up from stop Interrupt */
// USART_ITConfig(USART1, USART_IT_WU, ENABLE);

/* Enter USART in STOP mode with regulator in low power mode */
// PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);

}

void conversion(long temp_data)
{
shiwan=temp_data/100000+0x30 ;
temp_data=temp_data%100000; //????
wan=temp_data/10000+0x30 ;
temp_data=temp_data%10000; //????
qian=temp_data/1000+0x30 ;
temp_data=temp_data%1000; //????
bai=temp_data/100+0x30 ;
temp_data=temp_data%100; //????
shi=temp_data/10+0x30 ;
temp_data=temp_data%10; //????
ge=temp_data+0x30;
}
void Delayms(vu32 m)
{
u32 i;

for(; m != 0; m--)
for (i=0; i