void _Device_Setting_Timer3_Enable(uint8_t enable)
{
if(enable){
/* Enable TIM3 clock */
CLK_PeripheralClockConfig(CLK_Peripheral_TIM3, ENABLE);
/* Time Base configuration */
TIM3_TimeBaseInit(TIM3_PRESCALER, TIM3_CounterMode_Up, TIM3_PERIOD);
/* Enable update interrupt */
TIM3_ITConfig(TIM3_IT_Update, ENABLE);
/* Enable TIM3 */
TIM3_Cmd(ENABLE);
}else{
/* Enable TIM3 clock */
CLK_PeripheralClockConfig(CLK_Peripheral_TIM3, DISABLE);
/* Enable update interrupt */
TIM3_ITConfig(TIM3_IT_Update, DISABLE);
/* Enable TIM3 */
TIM3_Cmd(DISABLE);
/* Cleat Interrupt Pending bit */
TIM3_ClearITPendingBit(TIM3_IT_Update);
}
}
//Delay function Initialization
void Delay_Init(void)
{
//Clear bits
TIM3_DeInit();
//Peripetial Initialization
TIM3_TimeBaseInit(TIM3_PRESCALER_16, 999);
//Enable Periphs
TIM3_Cmd(ENABLE);
//Interrupt configuration
TIM3_ITConfig(TIM3_IT_UPDATE, ENABLE);
#ifndef __MODBUS_EN
#define __DELAY_EN
enableInterrupts();
#endif
}
void TIM3_Config(void)
{
/* TIM3 configuration:
- TIM3CLK is set to 16 MHz, the TIM3 Prescaler is equal to 128 so the TIM3 counter
clock used is 16 MHz / 16= 1 000 000 Hz
- In this example we need to generate a time base equal to 0.5 ms
so TIM3_PERIOD = (0.00005 * 1000000 - 1) = 499 */
/* Time base configuration */
TIM3_TimeBaseInit(TIM3_PRESCALER_16, TIM3_PERIOD);
TIM3_ARRPreloadConfig(ENABLE);
TIM3_ClearFlag(TIM3_FLAG_UPDATE);
/* Enable update interrupt */
TIM3_ITConfig(TIM3_IT_UPDATE, ENABLE);
/* Enable TIM2 */
TIM3_Cmd(ENABLE);
}
void Config()
{
//System clock at power up is HSI/8 = 16MHz/8 = 2MHz
//CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_1); //set HSI/4 = 4MHz SysClk to Core and Memory, minimum clock = 125KHz for CLK_SYSCLKDiv_128
//PWR_PVDCmd(ENABLE); //Power voltage detector and brownout Reset unit supply current 2,6uA
//PWR_PVDLevelConfig(PWR_PVDLevel_2V26); //set Programmable voltage detector threshold to 2,26V
//PWR_GetFlagStatus(PWR_FLAG_PVDOF); //checks whether the specified PWR flag is set or not
//Configure external interrupts - BTN1 and BTN2 presses
//EXTI_SetPinSensitivity(EXTI_Pin_2, EXTI_Trigger_Falling_Low);
//EXTI_SetPinSensitivity(EXTI_Pin_4, EXTI_Trigger_Falling_Low);
//EXTI_SelectPort(EXTI_Port_B);
//EXTI_SetHalfPortSelection(EXTI_HalfPort_B_MSB, ENABLE);
// Timer 4 Configuration
CLK_PeripheralClockConfig(CLK_Peripheral_TIM4, ENABLE); // 8bit: used for system periodic flags and timeouts
TIM4_TimeBaseInit(TIM4_Prescaler_16, 125); // Overflow at 1ms, 2MHz/16/125 = 1000
TIM4_ITConfig(TIM4_IT_Update, ENABLE);
TIM4_Cmd(ENABLE);
// Timer 2 Configuration
CLK_PeripheralClockConfig(CLK_Peripheral_TIM2, ENABLE); // 16bit: used for runtime measurement
TIM2_TimeBaseInit(TIM2_Prescaler_2, TIM2_CounterMode_Up, 0xFFFF); // timebase of 1us, 2MHz/2=1M
TIM2_Cmd(ENABLE);
// Timer3 Configuration
CLK_PeripheralClockConfig(CLK_Peripheral_TIM3, ENABLE);
TIM3_TimeBaseInit(TIM3_Prescaler_2, TIM3_CounterMode_Up, 0xFFFF); // 1us timebase @ 2MHz system clock
TIM3_ICInit(TIM3_Channel_2,
TIM3_ICPolarity_Falling,
TIM3_ICSelection_IndirectTI,
TIM3_ICPSC_Div1,
0);
TIM3_ICInit(TIM3_Channel_1,
TIM3_ICPolarity_Rising,
TIM3_ICSelection_DirectTI,
TIM3_ICPSC_Div1,
0);
TIM3_SelectInputTrigger(TIM3_TRGSelection_TI1FP1);
TIM3_SelectSlaveMode(TIM3_SlaveMode_Reset); // Reset timer on selected trigger signal
TIM3_ITConfig(TIM3_IT_CC1, ENABLE);
TIM3_ITConfig(TIM3_IT_CC2, ENABLE);
TIM3_Cmd(ENABLE);
/* Output PP High - bicolor LED to GND */
GPIO_Init(LED_PORT, LED_PIN1, GPIO_Mode_Out_PP_Low_Slow);
GPIO_Init(LED_PORT, LED_PIN2, GPIO_Mode_Out_PP_Low_Slow);
/* Input pull up no IT - onboard Button, external pull-up */
GPIO_Init(BTN1_PORT, BTN1_PIN, GPIO_Mode_In_FL_No_IT);
/* RFM85W pins */
GPIO_Init(RFM_DATA_PORT, RFM_DATA_PIN, GPIO_Mode_In_FL_No_IT);
/* DEBUG pin */
GPIO_Init(DEBUG_PIN_PORT, DEBUG_PIN_PIN, GPIO_Mode_Out_PP_Low_Fast);
/* H bridge outputs */
GPIO_Init(PMOS_L_PORT, PMOS_L_PIN, GPIO_Mode_Out_PP_High_Fast);
GPIO_Init(PMOS_R_PORT, PMOS_R_PIN, GPIO_Mode_Out_PP_High_Fast);
GPIO_Init(NMOS_L_PORT, NMOS_L_PIN, GPIO_Mode_Out_PP_Low_Fast);
GPIO_Init(NMOS_R_PORT, NMOS_R_PIN, GPIO_Mode_Out_PP_Low_Fast);
}
void tim3_on(void)
{
TIM3_TimeBaseInit(TIM3_Prescaler_32,TIM3_CounterMode_Up,0xffff);
TIM3_ITConfig(TIM3_IT_CC1,ENABLE);
TIM3_Cmd(ENABLE);
};
