static void MemsConfigure2(void) {
LIS302DL_FilterConfigTypeDef LIS302DL_FilterStruct;
int8_t buffer[2];
LIS302DL_FilterStruct.HighPassFilter_Data_Selection = LIS302DL_FILTEREDDATASELECTION_OUTPUTREGISTER;
LIS302DL_FilterStruct.HighPassFilter_Interrupt = LIS302DL_HIGHPASSFILTERINTERRUPT_1_2;
LIS302DL_FilterStruct.HighPassFilter_CutOff_Frequency = LIS302DL_HIGHPASSFILTER_LEVEL_1;
LIS302DL_FilterConfig(&LIS302DL_FilterStruct);
LIS302DL_ReadXYZ(buffer, sizeof buffer);
xOffset = buffer[0];
yOffset = buffer[1];
}
/**
*@brief This method is the one provided by STMicroelectronic with the discoverycard demo. It is used to configure the LIS302DL accelerometer embedded on the discovery card.
*/
void init_LIS302DL(){
/* MEMS configuration */
LIS302DL_InitStruct.Power_Mode = LIS302DL_LOWPOWERMODE_ACTIVE;
LIS302DL_InitStruct.Output_DataRate = LIS302DL_DATARATE_100;
LIS302DL_InitStruct.Axes_Enable = LIS302DL_XYZ_ENABLE;
LIS302DL_InitStruct.Full_Scale = LIS302DL_FULLSCALE_2_3;
LIS302DL_InitStruct.Self_Test = LIS302DL_SELFTEST_NORMAL;
LIS302DL_Init(&LIS302DL_InitStruct);
/* Required delay for the MEMS Accelerometre: Turn-on time = 3/Output data Rate
= 3/100 = 30ms */
Delay(30);
/* MEMS High Pass Filter configuration */
LIS302DL_FilterStruct.HighPassFilter_Data_Selection = LIS302DL_FILTEREDDATASELECTION_OUTPUTREGISTER;
LIS302DL_FilterStruct.HighPassFilter_CutOff_Frequency = LIS302DL_HIGHPASSFILTER_LEVEL_1;
LIS302DL_FilterStruct.HighPassFilter_Interrupt = LIS302DL_HIGHPASSFILTERINTERRUPT_1_2;
LIS302DL_FilterConfig(&LIS302DL_FilterStruct);
}
/**
* @brief Configure MEMS operation
* @param None
* @retval None
*/
void MEMS_Config(void)
{
LIS302DL_InitTypeDef LIS302DL_InitStruct;
LIS302DL_FilterConfigTypeDef LIS302DL_FilterStruct;
/* Set configuration of LIS302DL*/
LIS302DL_InitStruct.Power_Mode = LIS302DL_LOWPOWERMODE_ACTIVE;
LIS302DL_InitStruct.Output_DataRate = LIS302DL_DATARATE_100;
LIS302DL_InitStruct.Axes_Enable = LIS302DL_X_ENABLE | LIS302DL_Y_ENABLE;
LIS302DL_InitStruct.Full_Scale = LIS302DL_FULLSCALE_2_3;
LIS302DL_InitStruct.Self_Test = LIS302DL_SELFTEST_NORMAL;
LIS302DL_Init(&LIS302DL_InitStruct);
LIS302DL_FilterStruct.HighPassFilter_Data_Selection = LIS302DL_FILTEREDDATASELECTION_OUTPUTREGISTER;
LIS302DL_FilterStruct.HighPassFilter_CutOff_Frequency = LIS302DL_HIGHPASSFILTER_LEVEL_1;
LIS302DL_FilterStruct.HighPassFilter_Interrupt = LIS302DL_HIGHPASSFILTERINTERRUPT_OFF;
LIS302DL_FilterConfig(&LIS302DL_FilterStruct);
LIS302DL_Read(Buffer, LIS302DL_OUT_X_ADDR, 4);
XOffset = Buffer[0];
YOffset = Buffer[2];
}
/**
* @brief Execute the demo application.
* @param None
* @retval None
*/
static void Demo_Exec(void)
{
RCC_ClocksTypeDef RCC_Clocks;
uint8_t togglecounter = 0x00;
while(1)
{
DemoEnterCondition = 0x00;
/* Reset UserButton_Pressed variable */
UserButtonPressed = 0x00;
/* Initialize LEDs to be managed by GPIO */
STM_EVAL_LEDInit(LED4);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED5);
STM_EVAL_LEDInit(LED6);
/* SysTick end of count event each 10ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 100);
/* Turn OFF all LEDs */
STM_EVAL_LEDOff(LED4);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED5);
STM_EVAL_LEDOff(LED6);
/* Waiting User Button is pressed */
while (UserButtonPressed == 0x00)
{
/* Toggle LED4 */
STM_EVAL_LEDToggle(LED4);
Delay(10);
/* Toggle LED4 */
STM_EVAL_LEDToggle(LED3);
Delay(10);
/* Toggle LED4 */
STM_EVAL_LEDToggle(LED5);
Delay(10);
/* Toggle LED4 */
STM_EVAL_LEDToggle(LED6);
Delay(10);
togglecounter ++;
if (togglecounter == 0x10)
{
togglecounter = 0x00;
while (togglecounter < 0x10)
{
STM_EVAL_LEDToggle(LED4);
STM_EVAL_LEDToggle(LED3);
STM_EVAL_LEDToggle(LED5);
STM_EVAL_LEDToggle(LED6);
Delay(10);
togglecounter ++;
}
togglecounter = 0x00;
}
}
/* Waiting User Button is Released */
while (STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)
{}
UserButtonPressed = 0x00;
/* TIM4 channels configuration */
TIM4_Config();
/* Disable all Timer4 channels */
TIM_CCxCmd(TIM4, TIM_Channel_1, DISABLE);
TIM_CCxCmd(TIM4, TIM_Channel_2, DISABLE);
TIM_CCxCmd(TIM4, TIM_Channel_3, DISABLE);
TIM_CCxCmd(TIM4, TIM_Channel_4, DISABLE);
/* MEMS configuration */
LIS302DL_InitStruct.Power_Mode = LIS302DL_LOWPOWERMODE_ACTIVE;
LIS302DL_InitStruct.Output_DataRate = LIS302DL_DATARATE_100;
LIS302DL_InitStruct.Axes_Enable = LIS302DL_XYZ_ENABLE;
LIS302DL_InitStruct.Full_Scale = LIS302DL_FULLSCALE_2_3;
LIS302DL_InitStruct.Self_Test = LIS302DL_SELFTEST_NORMAL;
LIS302DL_Init(&LIS302DL_InitStruct);
/* Required delay for the MEMS Accelerometre: Turn-on time = 3/Output data Rate
= 3/100 = 30ms */
Delay(30);
DemoEnterCondition = 0x01;
/* MEMS High Pass Filter configuration */
LIS302DL_FilterStruct.HighPassFilter_Data_Selection = LIS302DL_FILTEREDDATASELECTION_OUTPUTREGISTER;
LIS302DL_FilterStruct.HighPassFilter_CutOff_Frequency = LIS302DL_HIGHPASSFILTER_LEVEL_1;
LIS302DL_FilterStruct.HighPassFilter_Interrupt = LIS302DL_HIGHPASSFILTERINTERRUPT_1_2;
LIS302DL_FilterConfig(&LIS302DL_FilterStruct);
LIS302DL_Read(Buffer, LIS302DL_OUT_X_ADDR, 6);
X_Offset = Buffer[0];
Y_Offset = Buffer[2];
Z_Offset = Buffer[4];
/* USB configuration */
Demo_USBConfig();
/* Waiting User Button is pressed */
while (UserButtonPressed == 0x00)
{}
/* Waiting User Button is Released */
while (STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)
{}
/* Disable SPI1 used to drive the MEMS accelerometre */
SPI_Cmd(LIS302DL_SPI, DISABLE);
/* Disconnect the USB device */
DCD_DevDisconnect(&USB_OTG_dev);
USB_OTG_StopDevice(&USB_OTG_dev);
}
}
/**
* @brief Execute the demo application.
* @param None
* @retval None
*/
static void Demo_Exec(void)
{
RCC_ClocksTypeDef RCC_Clocks;
/* 串口配置 */
USART1_Config();
NVIC_Config();
/* Initialize LEDs to be managed by GPIO */
STM_EVAL_LEDInit(LED4);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED5);
STM_EVAL_LEDInit(LED6);
//每次系统初始化后，都读取flash查看存储空间剩余情况
flash_readIndex(IndexList,uniIndexLength, &IndexCount);
while(1)
{
DemoEnterCondition = 0x00;
/* Reset UserButton_Pressed variable */
UserButtonPressed = 0x00;
// SerialButtonPressed = 0x00;
/* SysTick end of count event each 2.5ms */
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / TimeDev);
/******************************************/
/***空闲状态，清空flash或者发送数据选项****/
/******************************************/
/* Waiting User Button is pressed */
while (UserButtonPressed == 0x00)
{
/********通过串口与上位机通信*******************/
/* if Send serial data Button(PB11) is pressed */
if(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_11) == Bit_SET)//不太灵敏
{
while(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_11) == Bit_SET);
/*串口通信状态指示灯*/
STM_EVAL_LEDOn(LED4);
STM_EVAL_LEDOn(LED3);
STM_EVAL_LEDOn(LED5);
STM_EVAL_LEDOn(LED6);
//读取flash中index区域
flash_readIndex(IndexList,uniIndexLength, &IndexCount);
//与上位机握手操作
unsigned char* shakeHandSend = "ready? ";//最后一个字符必须是空格字符
while (*shakeHandSend != ' ')
{
SendChar(*shakeHandSend);
shakeHandSend++;
}
Delay(100);//等待1s确认接收自上位机的握手信号"ok!"
if (serialRecv[0] == 'o'&&serialRecv[1] == 'k'&&serialRecv[2] == '!')
{
//与上位机握手成功，可发送数据
serialFlag = 1;
}
else
{
//与上位机握手失败，无法发送数据
serialFlag = 0;
/*串口握手失败指示灯*/
STM_EVAL_LEDOff(LED4);
Delay(10);
STM_EVAL_LEDOff(LED3);
Delay(10);
STM_EVAL_LEDOff(LED5);
Delay(10);
STM_EVAL_LEDOff(LED6);
Delay(100);
}
if (1 == serialFlag)
{
//先发送IndexList数据给上位机，上位机选择需要的记录段（segment）反馈给下位机，下位机据此发送相应记录段给上位机
uint8_t i;
unsigned char sendData[4];
SendString("index");
SendCounter = 0;
while(SendCounter < IndexCount)
{
uint32_to_uint8(sendData,IndexList[SendCounter]);
i = 0;
while(i < 4)
{
SendChar((unsigned char)sendData[i]);
i+= 1 ;
}
SendCounter += 1;
}
/*开始发送segment数据给上位机*/
while(serialRecv[0] == 'o');//等待确认接收自上位机的选择信号"0"——"6"
Delay(2);//等待20ms后开始发送data,实现收发同步
if (serialRecv[0] == '0'||serialRecv[0] == '1'||serialRecv[0] == '2'||serialRecv[0] == '3'||serialRecv[0] == '4'||serialRecv[0] == '5'||serialRecv[0] == '6')
{
tempCount = IndexList[(serialRecv[0]-48)*uniIndexLength+2];
tempCount2 = 0;
//读取flash user data area中对应数据
while (tempCount > lowerComputerBufferNum)
{
flash_readData(SendData,lowerComputerBufferNum, tempCount2*lowerComputerBufferNum, IndexList[(serialRecv[0]-48)*uniIndexLength]);
SendCounter = 0;
while(SendCounter < lowerComputerBufferNum)
{
SendChar((unsigned char)SendData[SendCounter]);
SendCounter += 1 ;
}
tempCount -= lowerComputerBufferNum;
tempCount2 += 1;
Delay(9);//延时9ms以便上位机有时间处理缓冲区（上位机缓冲区大小同下位机）
}
if (tempCount != 0)
{
flash_readData(SendData,tempCount, tempCount2*lowerComputerBufferNum, IndexList[(serialRecv[0]-48)*uniIndexLength]);
SendCounter = 0;
while(SendCounter < tempCount)
{
SendChar((unsigned char)SendData[SendCounter]);
SendCounter += 1 ;
}
}
}
/*选择是否擦除对应segment和index*/
//接收自上位机的删除信号 'Y' for 删除，'N' for 不删除
if(serialRecv[1] == 'Y')
{
//uint32_t tempIndexList[uniIndexLength*7];
flash_init_sector(IndexList[(serialRecv[0]-48)*uniIndexLength]);//擦除该index所对应flash user data area区域
flash_init_sector(((uint32_t)0x08010000));//先擦除Index区域（sector 4）
i = 0;
uint8_t k = 0;
while(i < IndexCount)
{
if (i != (serialRecv[0]-48)*uniIndexLength)
{
IndexList[k] = IndexList[i];
IndexList[k+1] = IndexList[i+1];
IndexList[k+2] = IndexList[i+2];
k += uniIndexLength;
}
i += uniIndexLength;
}
flash_writeIndex(IndexList,IndexCount-uniIndexLength);//后重写该条index记录
IndexCount -= 3;
}
}
}
/********************清空flash********************************/
/* if Button(PB12) is pressed, flash user area will be erased*/
if(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_12) == Bit_SET)
{
/*waiting Button(PB12) being released*/
while(GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_12) == Bit_SET);
/* flash初始化 */
flash_init();
IndexCount = 0;
/*灯全闪烁后全灭，指示flash中用户数据被擦除*/
STM_EVAL_LEDToggle(LED4);
STM_EVAL_LEDToggle(LED3);
STM_EVAL_LEDToggle(LED5);
STM_EVAL_LEDToggle(LED6);
Delay(10);
STM_EVAL_LEDOff(LED4);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED5);
STM_EVAL_LEDOff(LED6);
Delay(100);
}
/* Toggle LED4 */
STM_EVAL_LEDToggle(LED6);
Delay(50);
//LED4 3 5用于二进制编码指示flash存储区占用个数
if((IndexCount/uniIndexLength)&(0x01))//最低位
{
STM_EVAL_LEDOn(LED5);
}
else
{
STM_EVAL_LEDOff(LED5);
}
if((IndexCount/uniIndexLength)&(0x02))
{
STM_EVAL_LEDOn(LED3);
}
else
{
STM_EVAL_LEDOff(LED3);
}
if((IndexCount/uniIndexLength)&(0x04))//最高位
{
STM_EVAL_LEDOn(LED4);
}
else
{
STM_EVAL_LEDOff(LED4);
}
}
/* Waiting User Button is Released */
while (STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)
{}
/******************************************/
/***退出空闲状态，采样状态配置初始化*******/
/******************************************/
STM_EVAL_LEDOn(LED4);
STM_EVAL_LEDOff(LED4);
Delay(10);
STM_EVAL_LEDOn(LED3);
STM_EVAL_LEDOff(LED3);
Delay(10);
STM_EVAL_LEDOn(LED5);
STM_EVAL_LEDOff(LED5);
Delay(10);
STM_EVAL_LEDOn(LED6);
STM_EVAL_LEDOff(LED6);
Delay(10);
/*各段记录相互独立的标志位均清零*/
Counter = 0;//分组采用计数器复位
DataWriteErrorFlag = 0;//flash写入错误标志位复位
NoWrittenFlag = 0;//未写入标志位复位
WritingSectorFlag = 0;//正在写入sector标志位复位
totalDataNumber = 0;//各段记录数据个数计数器复位
UserButtonPressed = 0x00;
/* MEMS configuration */
LIS302DL_InitStruct.Power_Mode = LIS302DL_LOWPOWERMODE_ACTIVE;
LIS302DL_InitStruct.Output_DataRate = LIS302DL_DATARATE_400;//加速度传感器采用率400HZ
LIS302DL_InitStruct.Axes_Enable = LIS302DL_XYZ_ENABLE;
LIS302DL_InitStruct.Full_Scale = LIS302DL_FULLSCALE_2_3;//18 mg/digit
LIS302DL_InitStruct.Self_Test = LIS302DL_SELFTEST_NORMAL;
LIS302DL_Init(&LIS302DL_InitStruct);
/* Required delay for the MEMS Accelerometre: Turn-on time = 3/Output data Rate
= 3/400 = 7.5ms */
Delay(1);
/* MEMS High Pass Filter configuration */
LIS302DL_FilterStruct.HighPassFilter_Data_Selection = LIS302DL_FILTEREDDATASELECTION_OUTPUTREGISTER;
LIS302DL_FilterStruct.HighPassFilter_CutOff_Frequency = LIS302DL_HIGHPASSFILTER_LEVEL_1;
LIS302DL_FilterStruct.HighPassFilter_Interrupt = LIS302DL_HIGHPASSFILTERINTERRUPT_1_2;
LIS302DL_FilterConfig(&LIS302DL_FilterStruct);
LIS302DL_Read(Buffer, LIS302DL_OUT_X_ADDR, 6);
X_Offset = Buffer[0];
Y_Offset = Buffer[2];
Z_Offset = Buffer[4];
/******************************************/
/***********开始进入采样模式，写入flash****/
/******************************************/
DemoEnterCondition = 0x01;
/* Waiting User Button is pressed */
while (UserButtonPressed == 0x00) //利用采样间隙写入缓冲器内数据，提高效率
{
if((0 == Counter)&&(1 == NoWrittenFlag)&&(0 == DataWriteErrorFlag))
{
if (WritingSectorFlag == 0)
{
writingDataAddr = getFreeDataStartAddr();
if (writingDataAddr == 0)
{
NoFreeSectors = 1;//无空闲sector块置位
NoWrittenFlag = 0;
/* 指示灯全亮，指示存储空间已满 */
STM_EVAL_LEDOn(LED4);
STM_EVAL_LEDOn(LED3);
STM_EVAL_LEDOn(LED5);
STM_EVAL_LEDOn(LED6);
break;//退出采样模式
}
else
{
//一次完整flash写入
flash_init_sector(writingDataAddr);//保险起见，先擦除该空闲sector块
DataWriteErrorFlag = flash_writeData(Total_Buffer, Total_Buffer_Number,writingDataAddr);
NoWrittenFlag = 0;//表示已写入(flash)
WritingSectorFlag = 1;//正在写入sector标志位置位，表示启用该块sector
}
}
else
{
//flash写入
DataWriteErrorFlag = flash_writeData(Total_Buffer, Total_Buffer_Number,writingDataAddr);
NoWrittenFlag = 0;//表示已写入(flash)
}
}
if(DataWriteErrorFlag != 0)
{
flash_init_sector(writingDataAddr);//flash写入错误后，擦除相应存储空间，退出采样状态
WritingSectorFlag = 0;//归还对该块存储空间的使用权
/* 指示灯全亮后全灭，指示进入采样状态 */
STM_EVAL_LEDOn(LED4);
STM_EVAL_LEDOn(LED3);
STM_EVAL_LEDOn(LED5);
STM_EVAL_LEDOn(LED6);
Delay(100);
STM_EVAL_LEDOff(LED4);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED5);
STM_EVAL_LEDOff(LED6);
Delay(100);
break;
}
/* 指示灯全灭，指示进入采样状态 */
STM_EVAL_LEDOff(LED4);
STM_EVAL_LEDOff(LED4);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED5);
STM_EVAL_LEDOff(LED6);
}
/* Waiting User Button is Released */
while (STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)
{}
/******************************************/
/***********退出采样模式，做善后处理*******/
/******************************************/
DemoEnterCondition = 0x00;//防止此时进入采样模式
/*如果退出采样模式时尚有数据未写入flash，在此一并写入flash*/
if(1 == NoWrittenFlag) flash_writeData(Total_Buffer, Counter,writingDataAddr);
if ((0 == NoFreeSectors)&&(1 == WritingSectorFlag))
{
/* 指示灯全灭后全亮，指示进入数据善后状态 */
STM_EVAL_LEDOff(LED4);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED5);
STM_EVAL_LEDOff(LED6);
Delay(10);
STM_EVAL_LEDOn(LED4);
STM_EVAL_LEDOn(LED3);
STM_EVAL_LEDOn(LED5);
STM_EVAL_LEDOn(LED6);
Delay(10);
/*至此，一条“完整”记录写入flash完毕，需要在flash中建立关于这条记录的索引index*/
flash_readIndex(IndexList,uniIndexLength, &IndexCount);//从flash中读取原IndexList
IndexList[IndexCount] = writingDataAddr;//写入最新的数据地址块首地址
srand((int)time(0));
IndexList[IndexCount+1] = rand()%100;//写入最新的记录名
IndexList[IndexCount+2] = totalDataNumber;//写入最新的段记录总个数
flash_init_sector(((uint32_t)0x08010000));//先擦除Index区域（sector 4）
flash_writeIndex(IndexList,IndexCount+3);//后写入
IndexCount += 3;
}
/* Disable SPI1 used to drive the MEMS accelerometre */
SPI_Cmd(LIS302DL_SPI, DISABLE);
}
}