//called in the interrupt
void sample_proc(int16_t _sample)
{
static uint16_t i = 0;
raw_buffer[i++] = HTONS(_sample);
if(i < RAW_BUFSIZE)
return;
i = 0;
if(raw_buffer == raw_buffer1)
{
rawbuf_status |= RAWBUF_FULL1;
raw_buffer = raw_buffer2;
}
else
{
rawbuf_status |= RAWBUF_FULL2;
raw_buffer = raw_buffer2;
}
EXTI_GenerateSWInterrupt(EXTI_Line0);
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f4xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f4xx.c file
*/
/* Initialize LEDs mounted on STM32F4-Discovery board */
STM_EVAL_LEDInit(LED4);
STM_EVAL_LEDInit(LED3);
/* Configure EXTI Line0 (connected to PA0 pin) in interrupt mode */
EXTILine0_Config();
/* Generate software interrupt: simulate a rising edge applied on EXTI0 line */
EXTI_GenerateSWInterrupt(EXTI_Line0);
while (1)
{
}
}
/**
* @brief Initialize wireless
* @param
* @retval int 0
*/
void wireless_init() {
GPIO_InitTypeDef GPIO_init_st;
NVIC_InitTypeDef NVIC_init_st;
EXTI_InitTypeDef EXTI_InitStructure;
/* Enable SYSCFG clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
//Configure GPIO pin 0 in input mode
GPIO_init_st.GPIO_Mode = GPIO_Mode_IN;
GPIO_init_st.GPIO_Pin = CC2500_SPI_INT_PIN;
GPIO_init_st.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_init_st.GPIO_Speed = GPIO_High_Speed;
GPIO_init_st.GPIO_OType = GPIO_OType_PP;
GPIO_Init(CC2500_SPI_INT_GPIO_PORT, &GPIO_init_st);
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOB, CC2500_SPI_INT_EXTI_PIN_SOURCE);
EXTI_InitStructure.EXTI_Line = CC2500_SPI_INT_EXTI_LINE;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
// configure NVIC
NVIC_init_st.NVIC_IRQChannel = CC2500_SPI_INT_EXTI_IRQn;
NVIC_init_st.NVIC_IRQChannelCmd = ENABLE;
NVIC_init_st.NVIC_IRQChannelPreemptionPriority = 0x01;
NVIC_init_st.NVIC_IRQChannelSubPriority = 0x01;
NVIC_Init(&NVIC_init_st);
NVIC_EnableIRQ(CC2500_SPI_INT_EXTI_IRQn);
EXTI_GenerateSWInterrupt(EXTI_Line4);
CC2500_Init();
}
/**
* @brief Manage end of buffer transfer for each device.
* @param Direction: could be DIRECTION_IN or DIRECTION_OUT
* @param pbuf: Pointer to the address of the current buffer
* @param pSize: pointer to the variable which holds current buffer size
* @retval status
*/
void AudioPlayer_XferCplt (uint8_t Direction, uint8_t** pbuf, uint32_t* pSize)
{
if (AudioPlayerState == PLAYER_PLAYING)
{
/* Release previous buffer for write operation */
AudioBuffers[RdBuffIdx].isReady = 0;
/* Increment the buffer index */
RdBuffIdx = (RdBuffIdx >= 2)? 0:(RdBuffIdx+1);
if (!(AudioBuffers[RdBuffIdx].isReady))
{
RdBuffIdx = (RdBuffIdx > 0)? (RdBuffIdx-1):2;
}
/* Resume the audio stream */
AUDIO_OUT_fops.AudioCmd((uint8_t*)AudioBuffers[RdBuffIdx].pBuf, /* Samples buffer pointer */
AudioBuffers[RdBuffIdx].Size, /* Number of samples in Bytes */
AUDIO_CMD_PLAY); /* Command to be processed */
/* Trigger the Main audio player task to update the next buffers */
EXTI_GenerateSWInterrupt(EXTI_Line4);
}
}
/**
* @brief This function handles TIM3 global interrupt request.
* @param None
* @retval None
*/
void TIM3_IRQHandler(void)
{
if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)
{
/* Get ADC values */
uint32_t bat_level_value=ADC_ConvertedValueTabPointer[1]*/*41*/ADC_TO_MV_CONSTANT;
uint32_t regulatedOutputCurrentValue=ADC_ConvertedValueTabPointer[2]*ADC_TO_MA_CONSTANT;
uint32_t bat_current_value=ADC_ConvertedValueTabPointer[3]*/*32*/ADC_TO_MA_CONSTANT;
/*
printf("Bat Level: %d\n\r", bat_level_value);
printf("Bat charge current: %d\n\r", bat_current_value);
printf("Reg output Level: %d\n\r", ADC_ConvertedValueTabPointer[0]*ADC_TO_MV_CONSTANT);
printf("Reg output current: %d\n\r", regulatedOutputCurrentValue);
printf("Charger Level: %d\n\r", ADC_ConvertedValueTabPointer[4]*ADC_TO_MV_CONSTANT);
*/
/* Check for the events related to the ADC values */
/* PC is turned off (it was previously on) */
if (state.regulatedOutputState==ON && regulatedOutputCurrentValue<CURRENT_ON_OFF_THRESHOLD && TurnOnDelyTime==0 && !noCurrentFlag /* && state.externalPowerSourceState==DISCONNECTED */ && pcOn)
{
NoCurrentTimeout=2;
noCurrentFlag=true;
}
else if(noCurrentFlag && regulatedOutputCurrentValue>CURRENT_ON_OFF_THRESHOLD)
{
noCurrentFlag=false;
if(!pcOn)
pcOn=true;
}
if(noCurrentFlag && NoCurrentTimeout<=0 && pcOn)
{
/* Event EV.3 detected */
noCurrentFlag=false;
EXTI_GenerateSWInterrupt(EXTI_Line9);
}
/* Battery below KO level */
if (state.batteryState==DISCHARGING && bat_level_value<BATTERY_KO_THRESHOLD && !batteryKoFlag)
{
BatteryKoTimeout=5;
batteryKoFlag=true;
}
else if(batteryKoFlag)
{
if(bat_level_value>BATTERY_KO_THRESHOLD || state.externalPowerSourceState==CONNECTED)
batteryKoFlag=false;
}
if(batteryKoFlag && BatteryKoTimeout<=0)
{
/* Event EV.6 detected */
batteryKoFlag=false;
EXTI_GenerateSWInterrupt(EXTI_Line6);
}
/* Battery charge to constant voltage mode */
else if (state.batteryState==CHARGING_CC && bat_level_value>BAT_CC_CV_THRESHOLD)
{
/* Event EV.4 detected */
EXTI_GenerateSWInterrupt(EXTI_Line8);
}
/* Battery fully charged */
else if (state.batteryState==CHARGING_CV && bat_current_value<BAT_CURRENT_CHARGED_THRESHOLD)
{
/* Event EV.5 detected */
EXTI_GenerateSWInterrupt(EXTI_Line7);
}
getBatteryLevel(4, 3300, 3600, state.batteryState, bat_level_value);
TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
}
}
/**
* @brief Initialize the IO
* @return none
*/
static void platform_misc_port_init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
PWR_BackupAccessCmd(ENABLE);//允许修改RTC 和后备寄存器
RCC_LSICmd(DISABLE);//关闭外部低速外部时钟信号功能 后，PC14 PC15 才可以当普通IO用。
BKP_TamperPinCmd(DISABLE);//关闭入侵检测功能，也就是 PC13，也可以当普通IO 使用
//USB_CHK -- PC.13
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Connect EXTI Line13 to PC.13 */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource13);
EXTI_ClearITPendingBit(EXTI_Line13);
EXTI_InitStructure.EXTI_Line = EXTI_Line13;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line13);
//ChargeState detect -- PC.14
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_14;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Connect EXTI Line14 to PC.14 */
//GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource14);
//EXTI_ClearITPendingBit(EXTI_Line14);
//EXTI_InitStructure.EXTI_Line = EXTI_Line14;
//EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
//EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling;
//EXTI_InitStructure.EXTI_LineCmd = ENABLE;
//EXTI_Init(&EXTI_InitStructure);
//EXTI_GenerateSWInterrupt(EXTI_Line14);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 6;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
charge_detect_io_cnt = 0;
last_charge_detect_io_cnt = 1;
//LED-Red -- PA.4 LED-Green -- PA.5 LED-Yellow -- PA.6
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_SetBits(GPIOA, GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6);
//Beep -- PB.5 Trig -- PB.12
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_SetBits(GPIOB, GPIO_Pin_12);
GPIO_ResetBits(GPIOB, GPIO_Pin_5);
//RFU-IO2 -- PB.8
//GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
//GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
//GPIO_Init(GPIOB, &GPIO_InitStructure);
}
//==============================================================================
// 設置外部中斷
//==============================================================================
void EXTI_Config(void)
{
EXTI_InitTypeDef EXTI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
/* Enable SYSCFG clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
//=======================================================
/* Connect EXTI0 Line to PA0 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource0);
/* Configure EXTI0 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line0;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI1 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI0_1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line0);
/* Connect EXTI1 Line to PA1 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource1);
/* Configure EXTI1 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line1;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI1 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI0_1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line1);
/* Connect EXTI2 Line to PA2 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource2);
/* Configure EXTI2 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line2;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI2 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI2_3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line2);
//=======================================================
/* Connect EXTI3 Line to PA3 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource3);
/* Configure EXTI3 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line3;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI3 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI2_3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line3);
//----------------------------------------------------------------------------
/* Connect EXTI4 Line to PA4 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource4);
/* Configure EXTI4 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line4;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI4 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI4_15_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line4);
//----------------------------------------------------------------------------
/* Connect EXTI5 Line to PA5 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource5);
/* Configure EXTI5 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line5;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI5 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI4_15_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line5);
//----------------------------------------------------------------------------
/* Connect EXTI6 Line to PA6 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource6);
/* Configure EXTI3 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line6;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI6 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI4_15_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line6);
//----------------------------------------------------------------------------
/* Connect EXTI7 Line to PA7 pin */
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource7);
/* Configure EXTI7 line */
EXTI_InitStructure.EXTI_Line = EXTI_Line7;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
/* Enable and set EXTI7 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = EXTI4_15_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line7);
}
/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG , ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOA, ENABLE );
RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIM3 | RCC_APB1Periph_TIM3, ENABLE );
volatile int i;
int n = 1;
GPIO_StructInit(&GPIO_InitStructure); // Reset init structure
GPIO_StructInit(&GPIO_InitStructure2); // Reset init structure
GPIO_StructInit(&GPIO_InitStructure3); // Reset init structure
GPIO_PinAFConfig(GPIOC, GPIO_PinSource6, GPIO_AF_TIM3);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource7, GPIO_AF_TIM3);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource8, GPIO_AF_TIM3);
GPIO_PinAFConfig(GPIOC, GPIO_PinSource9, GPIO_AF_TIM3);
//GPIO_PinAFConfig(GPIOB, GPIO_PinSource4, GPIO_AF_TIM3);
//GPIO_PinAFConfig(GPIOB, GPIO_PinSource5, GPIO_AF_TIM3);
/**
PWM
Output PortC 6 7 8 9
AF TIM3
**/
// Setup Servo on STM32-Discovery Board to use PWM.
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7| GPIO_Pin_8| GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; // Alt Function - Push Pull
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init( GPIOC, &GPIO_InitStructure );
/**
Button
Output PortB 4 5
**/
/* GPIOA Configuration: CH1 (PB4) and CH2 (PB5) */
GPIO_InitStructure2.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 ;
GPIO_InitStructure2.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure2.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure2.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure2.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOB, &GPIO_InitStructure2);
GPIOB->BSRRL = GPIO_Pin_4;
GPIOB->BSRRL = GPIO_Pin_5;
/**
Button
Input PortA 2 3
**/
/* GPIOA Configuration: (PA2) and (PA3) */ //input
GPIO_InitStructure2.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3 ;
GPIO_InitStructure2.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure2.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure2.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure2.GPIO_PuPd = GPIO_PuPd_DOWN ;
GPIO_Init(GPIOA, &GPIO_InitStructure2);
/**
Button A2 A3 Interrupt
EXTI 2 3
**/
//清空中断标志
EXTI_ClearITPendingBit(EXTI_Line2);
EXTI_ClearITPendingBit(EXTI_Line3);
//选择中断管脚PA.2 PA.3
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource2);
SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA, EXTI_PinSource3);
// SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA,EXTI_PinSource0);
// SYSCFG_EXTILineConfig(EXTI_PortSourceGPIOA,EXTI_PinSource0);
EXTI_InitStructure.EXTI_Line = EXTI_Line2 ; //选择中断线路2
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; //设置为中断请求，非事件请求
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //设置中断触发方式为上下降沿触发
EXTI_InitStructure.EXTI_LineCmd = ENABLE; //外部中断使能
EXTI_Init(&EXTI_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line2);
EXTI_InitStructure.EXTI_Line = EXTI_Line3 ; //选择中断线路2
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; //设置为中断请求，非事件请求
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //设置中断触发方式为上下降沿触发
EXTI_InitStructure.EXTI_LineCmd = ENABLE; //外部中断使能
EXTI_Init(&EXTI_InitStructure);
EXTI_GenerateSWInterrupt(EXTI_Line3);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); //选择中断分组2
NVIC_InitStructure.NVIC_IRQChannel = EXTI2_IRQn ; //选择中断通道2
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //抢占式中断优先级设置为0
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //响应式中断优先级设置为0
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能中断
NVIC_Init(&NVIC_InitStructure);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1); //选择中断分组2
NVIC_InitStructure.NVIC_IRQChannel = EXTI3_IRQn; //选择中断通道2
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //抢占式中断优先级设置为0
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //响应式中断优先级设置为0
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //使能中断
NVIC_Init(&NVIC_InitStructure);
/**
Timer setting
Tim3
**/
PrescalerValue = (uint16_t) ((SystemCoreClock /4) / 100000) - 1;
// Let PWM frequency equal 100Hz.
// Let period equal 1000. Therefore, timer runs from zero to 1000. Gives 0.1Hz resolution.
// Solving for prescaler gives 240.
TIM_TimeBaseStructInit( &TIM_TimeBaseInitStruct );
TIM_TimeBaseInitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
TIM_TimeBaseInitStruct.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInitStruct.TIM_Period = 3360 - 1; // 0..2000
TIM_TimeBaseInitStruct.TIM_Prescaler = 500;
TIM_TimeBaseInit( TIM3, &TIM_TimeBaseInitStruct );
/**
TIM_Prescaler = 500-1, TIM_Period = 1680-1 , TIMxCLK = 84MHz
輸出脈波週期 = (TIM_Period + 1) * (TIM_Prescaler + 1) / TIMxCLK
= ( 1680 - 1 +1 ) * ( 500 - 1 + 1 ) / 84000000 = 0.01s(100Hz)
**/
TIM_OCStructInit( &TIM_OCInitStruct );
TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_PWM1;
// Initial duty cycle equals 0%. Value can range from zero to 1000.
TIM_OCInitStruct.TIM_Pulse = 3360 -1; // 0 .. 1680 (0=Always Off, 1680=Always On)
TIM_OC1Init( TIM3, &TIM_OCInitStruct ); // Channel 1 Servo
TIM_OC2Init( TIM3, &TIM_OCInitStruct ); // Channel 2 Servo
TIM_OC3Init( TIM3, &TIM_OCInitStruct ); // Channel 3 PB7 Servo L
TIM_OC4Init( TIM3, &TIM_OCInitStruct ); // Channel 4 PB8 Servo R
TIM_Cmd( TIM3, ENABLE );
/**
Project Testing
**/
while(1) // Do not exit
{
//Test 1
if(TIM3->CCR4>0){
for(i=0;i<16000000;i++);
TIM3->CCR4 = 0;
}
/*
//Test 2
TIM3->CCR4 = 168;
for(i=0;i<16000000;i++);
TIM3->CCR4 = 336;
for(i=0;i<16000000;i++);
TIM3->CCR4 = 252;
for(i=0;i<16000000;i++);
/*
//Test 3
if (((brightness + n) >= 3000) || ((brightness + n) <= 0))
n = -n; // if brightness maximum/maximum change direction
brightness += n;
TIM3->CCR1 = brightness; // set brightness
TIM3->CCR2 = 1000 - brightness; // set brightness
TIM3->CCR3 = 3000 - brightness; // set brightness
TIM3->CCR4 = 3000 - brightness; // set brightness
for(i=0;i<10000;i++); // delay
//Delay(250000);
//Delay(1000000);
//Delay(1000000);
*/
}
return(0); // System will implode
/**
Others
**/
if (STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)
{
if ((*(__IO uint32_t*) TESTRESULT_ADDRESS) == ALLTEST_PASS)
{
/* Waiting User Button is pressed or Test Program condition verified */
while ((STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)&&(TimingDelay != 0x00))
{}
}
else
{
/* Waiting User Button is Released or TimeOut*/
while ((STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)&&(TimingDelay != 0x00))
{}
if (STM_EVAL_PBGetState(BUTTON_USER) == Bit_RESET)
{
}
}
if (TimingDelay == 0x00)
{
/* Turn off LEDs available on STM32F4-Discovery ------------------------*/
/* Waiting User Button is released */
while (STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)
{}
/* Unlocks the FLASH control register access */
FLASH_Unlock();
/* Move discovery kit to detect negative and positive acceleration values
on X, Y and Z axis */
Accelerometer_MEMS_Test();
/* USB Hardware connection */
USB_Test();
/* Audio Hardware connection */
Audio_Test();
/* Microphone MEMS Hardware connection */
Microphone_MEMS_Test();
/* Write PASS code at last word in the flash memory */
FLASH_ProgramWord(TESTRESULT_ADDRESS, ALLTEST_PASS);
while(1)
{
/* Toggle Green LED: signaling the End of the Test program */
STM_EVAL_LEDToggle(LED4);
Delay(41999/2);
}
}
else
{
Demo_Exec();
}
}
else
{
Demo_Exec();
}
}