//main routine for ADC (linear) calibration testing
void TestADCCalibration(void)
{
unsigned int * ADCBuffer;
double * ADCRealValues;
double P, Q;
unsigned int i;
unsigned int NumOfData;
volatile double diffOrig;
volatile double diffCalib;
unsigned char DEBUG_STRING[30];
//set external clock (16MHz XTALL required)
SetCPUClock(0);
//allocate buffer space
if ((ADCBuffer = malloc(ADC_BUFFER_SIZE * sizeof(ADCBuffer[0]))) == NULL)
_asm("trap\n");
if ((ADCRealValues = malloc(ADC_BUFFER_SIZE * sizeof(ADCRealValues[0]))) == NULL)
_asm("trap\n");
//main test
{
//collect data
NumOfData = ADCCollectDataCalib(ADCBuffer, ADCRealValues);
P= GetMultiplierCalib(ADCBuffer, ADCRealValues, NumOfData);
diffOrig = GetErrorCalib(ADCBuffer, ADCRealValues, NumOfData, P, 0);
//calib data
ADCCalibratePQ(ADCBuffer, ADCRealValues, NumOfData, &P, &Q);
diffCalib = GetErrorCalib(ADCBuffer, ADCRealValues, NumOfData, P, Q);
//print errors
sprintf(DEBUG_STRING, "Orig = %f", diffOrig);
LCD_PrintString(LCD_LINE1, ENABLE, DISABLE, DEBUG_STRING);
sprintf(DEBUG_STRING, "Calib= %f", diffCalib);
LCD_PrintString(LCD_LINE2, ENABLE, DISABLE, DEBUG_STRING);
delay(500000l);//to show results
}
//see real values after ADC calibration - for checking calibration
LCD_Clear();
LCD_PrintString(LCD_LINE1, DISABLE, ENABLE, "Real calibrated U");
while(!JOY_SEL)
{
//start single conversion
ADC2_StartConversion();
while (!ADC2_GetFlagStatus());
//clear end of conversion bit
ADC2_ClearFlag();
//collect ADC value and display
LCD_SetCursorPos(LCD_LINE2, 4);//set cursor position
LCD_PrintDec4((P*ADC2_GetConversionValue() + Q)*1000);
}
//unallocate buffer
free(ADCBuffer);
}//TestADCCalibration
/**************************实现函数********************************************
*函数原型: unsigned int Get_ADCCH_Value(ADC2_Channel_TypeDef ADC_Channel)
*功 能: 单次采样某个ADC通道
*******************************************************************************/
unsigned int Get_ADCCH_Value(ADC2_Channel_TypeDef ADC_Channel)
{
unsigned int SUM = 0;//临时和
unsigned char j;
//配置ADC转换通道，单次采样模式，ADC结果右对齐
ADC2_Cmd(ENABLE);
ADC2_ConversionConfig(ADC2_CONVERSIONMODE_SINGLE, ADC_Channel, ADC2_ALIGN_RIGHT);
for (j = 0; j < 16 ; j++)
{
ADC2_StartConversion(); // 开始转换
while (ADC2_GetFlagStatus() == RESET); // 等待转换完成
SUM += ADC2_GetConversionValue(); // 求和
ADC2_ClearFlag();
}
SUM = SUM>>4;
ADC2_Cmd(DISABLE);
return(SUM);
}
#endif /*STM8S208 or STM8S207 or STM8AF52Ax or STM8AF62Ax */
#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
/**
* @brief ADC2 interrupt routine.
* @param None
* @retval None
*/
INTERRUPT_HANDLER(ADC2_IRQHandler, 22)
{
/* In order to detect unexpected events during development,
it is recommended to set a breakpoint on the following instruction.
*/
/* Get converted value */
Conversion_Value = ADC2_GetConversionValue();
if (Conversion_Value == 0x0)
{
/* Turn off LED1..4*/
STM_EVAL_LEDOff(LED1);
STM_EVAL_LEDOff(LED2);
STM_EVAL_LEDOff(LED3);
STM_EVAL_LEDOff(LED4);
}
else if ((Conversion_Value <= 0xFF) && (Conversion_Value > 0x0))
{
/* Turn on LED1 */
STM_EVAL_LEDOn(LED1);
/* Turn off LED2..4 */
//collection of ADC data and also real precise values from external voltmeter
//external data is entered with joystick movement as 0.000 number
static unsigned int ADCCollectDataCalib(unsigned int * ADCBuffer, double * ADCRealValues)
{
unsigned int i;
unsigned int multiplier;
signed int Voltage;
unsigned char cursorPos;
unsigned char ArrowChar = '^';
unsigned char JoyUp,JoyDown,JoyLeft,JoyRight,JoySel;
//disable ADC interrupts
ADC2_ITConfig(DISABLE);
//enable ADC
ADC2_Init(ADC2_CONVERSIONMODE_SINGLE, ADC2_CHANNEL_12, ADC2_PRESSEL_FCPU_D6, ADC2_EXTTRIG_TIM, DISABLE, ADC2_ALIGN_RIGHT, ADC2_SCHMITTTRIG_CHANNEL12, DISABLE);
//clear end of conversion bit
ADC2_ClearFlag();
//for joystick control (init)
//pull-ups on on all used buttons
GPIOB->CR1 |= 0xF0;
GPIOD->CR1 |= 0x80;
Voltage = 0;
multiplier = 1000;
cursorPos = 2;
//print values on LCD display
LCD_Clear();
LCD_SetCursorPos(LCD_LINE1, 1);
LCD_PrintDec4(Voltage);
LCD_PrintString(LCD_LINE1, DISABLE, ENABLE, " =Real U");
LCD_SetCursorPos(LCD_LINE2, cursorPos/2);
LCD_PrintChar(ArrowChar);
//set external voltage - measure it with external voltmeter - enter voltmeter
//value into LCD - measure ADC data - store real and ADC data to buffers
//finish data collecting by KEY button on PCB board
for(i=0; i<ADC_BUFFER_SIZE; i++)
{
LCD_SetCursorPos(LCD_LINE2, 0);
LCD_PrintDec2(i);
while(JOY_SEL);
while(!JOY_SEL)
{
if(BUTTON_LOW)
break;
JoyUp = JOY_UP;
JoyDown = JOY_DOWN;
JoyLeft = JOY_LEFT;
JoyRight= JOY_RIGHT;
JoySel = JOY_SEL;
if(JoyLeft)//increase multiplier
{
if (cursorPos!=2)
{
multiplier *= 10;
cursorPos -= 1;
}
}
if(JoyRight)//decrease multiplier
{
if (cursorPos!=5)
{
multiplier /= 10;
cursorPos += 1;
}
}
if(JoyRight || JoyLeft)//repaint cursor position
{
LCD_PrintString(LCD_LINE2, DISABLE, DISABLE, " ");//clear cursor
LCD_SetCursorPos(LCD_LINE2, cursorPos/2);//set cursor position
if(cursorPos & 1)
LCD_PrintChar(' ');//print space
LCD_PrintChar(ArrowChar);//print cursor
while (JOY_RIGHT || JOY_LEFT);
delay(1000l);
}
if(JoyUp)//increase real value
{
Voltage += multiplier;
}
if(JoyDown)//decrease real value
{
Voltage -= multiplier;
}
if(JoyUp || JoyDown)//repaint real value
{
LCD_PrintString(LCD_LINE1, DISABLE, DISABLE, " ");//clear voltage
if (Voltage<0)
{
LCD_SetCursorPos(LCD_LINE1, 1);
LCD_PrintDec4(-Voltage);
LCD_SetCursorPos(LCD_LINE1, 0);
LCD_PrintChar('-');//print sign
}
else
{
LCD_SetCursorPos(LCD_LINE1, 1);
LCD_PrintDec4(Voltage);
LCD_SetCursorPos(LCD_LINE1, 0);
LCD_PrintChar('+');//print sign
}
while (JOY_UP || JOY_DOWN);
delay(1000l);
}
//start single conversion
ADC2_StartConversion();
while (!ADC2_GetFlagStatus());
//clear end of conversion bit
ADC2_ClearFlag();
//collect ADC value and display it
LCD_SetCursorPos(LCD_LINE2, 5);//set cursor position
LCD_PrintDec4(ADC2_GetConversionValue());
}
//stop collecting if KEY buttom pressed
if(BUTTON_LOW)
{
break;
}
//otherwise collect ADC data (+ real data) and store them
else
{
//start single conversion
ADC2_StartConversion();
while (!ADC2_GetFlagStatus());
//clear end of conversion bit
ADC2_ClearFlag();
//collect ADC value
ADCBuffer[i] = ADC2_GetConversionValue();
//collect real value
ADCRealValues[i] = (double)Voltage/1000;
}
}
return i;
}//ADCCollectDataCalib
int sysProcess(msg_t *pMsg)
{
int iRet = TRUE;
u16 u16Ret = 0xffff;
u16 u16Tmp;
u16 temp1, temp2;
msg_t msg;
u8 ucArr[24];
//u8 u8Ret = 0xff;
switch(pMsg->msgType)
{
case CACT_TOUT: /** 一段动作完成 **/
actProcess(&g_actionQueue);
break;
case CPMT_TOUT: /** 一段prompt动作完成 **/
actProcess(&g_promptQueue);
break;
case CBLK_TOUT: /** 一段blink动作完成 **/
actProcess(&g_blinkQueue);
break;
case CBLK_OVER: /** 全部blink动作完成 **/
blinkInit();
break;
case CADC_TOUT:
temp1 = ADC2_GetConversionValue();
adcSample_In(&g_adcData, temp1);
//OLED_ShowNum12x24(2, 5, temp1, 7, 24); //????????????????????????????????????????????
//if((g_flag & (1<<8)) == 0) { /** ADC电压采样完成了吗？ **/
if(adcSample_Out(&g_adcData, &temp2) == TRUE) { /** ADC电压采样完成, 取均值 **/
adcSample_Stop(&g_adcData);
temp1 = VOL_getRefValue();
if(temp1 < temp2) {
g_flag &= ~(1 << 9); /** 测得电压在参考电压之上 **/
} else {
g_flag |= (1 << 9); /** 低电报警 **/
}
}
break;
/***************************************************************************
* mcu与指纹传感器的通信及处理层次：
* 通信层--数据层--处理层
* mcu与指纹传感器的通信数据分类:
* 1.通信失败(信道故障或干扰，导致没收到正确数据)。可继续偿试。
* 2.通信没问题，取得图像数据失败。原因，如指纹不清晰，图像不正确, 比对时间超时(传感器层次的)等。可继续偿试。
* (从方程式指纹传感器使用反馈中，可以猜测认为，在图象不正确或不清晰时，持续比对)。
* 3.采集到正确的指纹图像，比对后没有发现匹配的模板。确认为一次失败。
* 4.正确返回，找到匹配的指纹模板。
***************************************************************************/
case CMSG_COMRX:
//u16Ret = FP_GetRespData(0, ucArr);
u16Ret = FP_GetRespData(0, ucArr);
MFPACK_FIFO_CLEAN(x);
if(u16Ret != 0) { /** 收到有效数据 **/
u16Ret = FP_RespChk(ucArr); /** data valid or not **/
if(u16Ret == CMD_ACK_SUM_ERR) {
/** 指纹操作数据-失败 **/
msg.msgType = CMSG_FGCOMFAIL; //通信校验错。可以重试
msgq_in_irq(&g_msgq, &msg);
} else if(u16Ret == CMD_ACK_OK) {
/*******************************************
* now, we ensure that the data is valid
*
* we check several type of response
*******************************************/
u16Ret = FP_RespGetType(ucArr);
switch(u16Ret)
{
/***************************************************************
* 指纹录入的5种返回结果：
* 1. 0x00 - 指令处理成功
* 2. 0x01 - 指令处理失败
* 3. 0x60 - 指定的Template号码无效
* 4. 0x14 - 指定号码中已存在Template
* 5. 0xFFF1/0xFFF2/0xFFF3/0xFFF4 - 录入等待/离开手指
* 6. 0x23 - Timeout时间内没有检测到指纹的输入
* 7. 0x21 - 指纹图像不好
* 8. 0x30 - 登记的Template的制作失败
***************************************************************/
case FP_ENROLL:
u16Ret = FP_RespGetResult(ucArr);
if(u16Ret == (u16)CRESP_ERR_SUCCESS) {
/** 注册指纹-正常返回 **/
u16Ret = FP_RespGetLen(ucArr);
if(u16Ret == 4) {
u16Tmp = FP_RespGetId(ucArr);
if(((u16Tmp >> 8 ) & 0xff) == 0xff) {
if(((u16Tmp & 0xff) >= 0xf1) && ((u16Tmp & 0xff) <= 0xf4)) {
msg.msgType = CMSG_FGRGSTING;
msgq_in_irq(&g_msgq, &msg);
}
} else { }
} else if(u16Ret == 6) {