/**
* @brief Main program.
* @param None
* @retval None
*/
int main(void)
{
RCC_ClocksTypeDef RCC_Clocks;
/* Initialize LEDs and User_Button on STM32F4-Discovery --------------------*/
STM_EVAL_PBInit(BUTTON_USER, BUTTON_MODE_EXTI);
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);
if (STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)
{
/* Turn on LEDs available on STM32F4-Discovery ---------------------------*/
STM_EVAL_LEDOn(LED4);
STM_EVAL_LEDOn(LED3);
STM_EVAL_LEDOn(LED5);
STM_EVAL_LEDOn(LED6);
if ((*(__IO uint32_t*) TESTRESULT_ADDRESS) == ALLTEST_PASS)
{
TimingDelay = 300;
/* 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*/
TimingDelay = 300;
while ((STM_EVAL_PBGetState(BUTTON_USER) == Bit_SET)&&(TimingDelay != 0x00))
{}
if (STM_EVAL_PBGetState(BUTTON_USER) == Bit_RESET)
{
TimingDelay = 0x00;
}
}
if (TimingDelay == 0x00)
{
/* Turn off LEDs available on STM32F4-Discovery ------------------------*/
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)
{}
/* 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(10);
}
}
else
{
Demo_Exec();
}
}
else
{
Demo_Exec();
}
}
/**
* @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();
}
}