float TimerCapture(void){
PINSEL_CFG_Type PinCfg;
PinCfg.Funcnum = 3;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLDOWN;
PinCfg.Portnum = 0;
PinCfg.Pinnum = 4;
PINSEL_ConfigPin(&PinCfg);
TIM_CAPTURECFG_Type captcfg;
captcfg.CaptureChannel = 0;
captcfg.IntOnCaption = ENABLE;
captcfg.FallingEdge = ENABLE;
captcfg.RisingEdge = ENABLE;
TIM_TIMERCFG_Type timercfg;
timercfg.PrescaleOption = TIM_PRESCALE_USVAL;
timercfg.PrescaleValue = 1;
TIM_Init(LPC_TIM2, TIM_TIMER_MODE, &timercfg);
TIM_ConfigCapture(LPC_TIM2, &captcfg);
NVIC_SetPriority(TIMER2_IRQn, ((0x01<<3)|0x01));
NVIC_EnableIRQ(TIMER2_IRQn);
TIM_Cmd(LPC_TIM2, ENABLE);
return ultradist;
}
/*********************************************************************//**
* @brief c_entry: Main TIMER program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
PINSEL_CFG_Type PinCfg;
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
//Config P1.26 as CAP0.0
PinCfg.Funcnum = 3;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 1;
PinCfg.Pinnum = 26;
PINSEL_ConfigPin(&PinCfg);
// Initialize timer 0, prescale count time of 1000000uS = 1S
TIM_ConfigStruct.PrescaleOption = TIM_PRESCALE_USVAL;
TIM_ConfigStruct.PrescaleValue = 1000000;
// use channel 0, CAPn.0
TIM_CaptureConfigStruct.CaptureChannel = 0;
// Enable capture on CAPn.0 rising edge
TIM_CaptureConfigStruct.RisingEdge = ENABLE;
// Enable capture on CAPn.0 falling edge
TIM_CaptureConfigStruct.FallingEdge = ENABLE;
// Generate capture interrupt
TIM_CaptureConfigStruct.IntOnCaption = ENABLE;
// Set configuration for Tim_config and Tim_MatchConfig
TIM_Init(LPC_TIM0, TIM_TIMER_MODE,&TIM_ConfigStruct);
TIM_ConfigCapture(LPC_TIM0, &TIM_CaptureConfigStruct);
TIM_ResetCounter(LPC_TIM0);
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(TIMER0_IRQn, ((0x01<<3)|0x01));
/* Enable interrupt for timer 0 */
NVIC_EnableIRQ(TIMER0_IRQn);
// To start timer 0
TIM_Cmd(LPC_TIM0,ENABLE);
while (1);
return 1;
}
void RC5_Init(void)
{
reseteo_general=0; // Esto estaba en el main() antes.
//Config P1.26 as CAP0.0
PinCfg.Funcnum = PINSEL_FUNC_3;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = PINSEL_PORT_1;
PinCfg.Pinnum = PINSEL_PIN_26;
PINSEL_ConfigPin(&PinCfg);
//Config P0.24 como GPIO
PinCfg.Funcnum=PINSEL_FUNC_0;
PinCfg.OpenDrain = PINSEL_PINMODE_NORMAL;
PinCfg.Pinmode = PINSEL_PINMODE_PULLUP;
PinCfg.Pinnum = PINSEL_PIN_24;
PinCfg.Portnum = PINSEL_PORT_0;
PINSEL_ConfigPin(&PinCfg);
// Initialize timer 0, prescale count time of 1000000uS = 1S lo cambio yo
TIM_ConfigStruct.PrescaleOption = TIM_PRESCALE_USVAL;
TIM_ConfigStruct.PrescaleValue = 1;
// use channel 0, CAPn.0
TIM_CaptureConfigStruct.CaptureChannel = 0;
// Enable capture on CAPn.0 rising edge
TIM_CaptureConfigStruct.RisingEdge = ENABLE;
// Enable capture on CAPn.0 falling edge
TIM_CaptureConfigStruct.FallingEdge = ENABLE;
// Generate capture interrupt
TIM_CaptureConfigStruct.IntOnCaption = ENABLE;
// Set configuration for Tim_config and Tim_MatchConfig
TIM_Init(LPC_TIM0, TIM_TIMER_MODE,&TIM_ConfigStruct);
TIM_ConfigCapture(LPC_TIM0, &TIM_CaptureConfigStruct);
TIM_ResetCounter(LPC_TIM0);
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(TIMER0_IRQn, ((0x01<<3)|0x01));
/* Enable interrupt for timer 0 */
NVIC_EnableIRQ(TIMER0_IRQn);
// To start timer 0
TIM_Cmd(LPC_TIM0,ENABLE);
} // --> RC5
/********************************************************************//**
* @brief Configures the TIM1 peripheral according to the specified
* parameters.
* @param[in] None
* @return None
*********************************************************************/
void TIM1_Config (void)
{
// TIM Configuration structure variable
TIM_TIMERCFG_Type TIM_ConfigStruct;
// TIM Match configuration Structure variable
TIM_MATCHCFG_Type TIM_MatchConfigStruct;
// TIM Capture configuration Structure variable
TIM_CAPTURECFG_Type TIM_CaptureConfigStruct;
// Initialize timer, prescale count time of 1mS
TIM_ConfigStruct.PrescaleOption = TIM_PRESCALE_USVAL;
TIM_ConfigStruct.PrescaleValue = 100;
// use channel 0, CAPn.0
TIM_CaptureConfigStruct.CaptureChannel = 0;
// Enable capture on CAPn.0 rising edge
TIM_CaptureConfigStruct.RisingEdge = ENABLE;
// Enable capture on CAPn.0 falling edge
TIM_CaptureConfigStruct.FallingEdge = DISABLE;
// Generate capture interrupt
TIM_CaptureConfigStruct.IntOnCaption = ENABLE;
// Use channel PCfg
TIM_MatchConfigStruct.MatchChannel = 0;
// Disable interrupt when MR0 matches the value in TC register
TIM_MatchConfigStruct.IntOnMatch = TRUE;
// Enable reset on MR0: TIMER will reset if MR0 matches it
TIM_MatchConfigStruct.ResetOnMatch = TRUE;
// Stop on MR0 if MR0 matches it
TIM_MatchConfigStruct.StopOnMatch = FALSE;
// Toggle MR0 pin if MR0 matches it
TIM_MatchConfigStruct.ExtMatchOutputType =TIM_EXTMATCH_TOGGLE;
// Set Match value, count value of 1000 (1000 * 100uS = 100mS --> 10Hz)
TIM_MatchConfigStruct.MatchValue = 1000;
// Set configuration for Tim_config and Tim_MatchConfig
TIM_Init(LPC_TIM1, TIM_TIMER_MODE,&TIM_ConfigStruct);
// TIM_ConfigMatch(LPC_TIM1, &TIM_MatchConfigStruct);
TIM_ConfigCapture(LPC_TIM1, &TIM_CaptureConfigStruct);
TIM_ResetCounter(LPC_TIM1);
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(TIMER1_IRQn, 1);
/* Enable interrupt for timer 1 */
NVIC_EnableIRQ(TIMER1_IRQn);
TIM_Cmd(LPC_TIM1, ENABLE);
}
/* Config the capturing of TIM2, capture channel 1 (CAP2.1). */
void timer_configure_tim_capture(int channel, int rising, int falling, int interrupt)
{
TIM_CAPTURECFG_Type TIM_CaptureConfigStruct;
TIM_CaptureConfigStruct.CaptureChannel = channel;
TIM_CaptureConfigStruct.RisingEdge = rising;
TIM_CaptureConfigStruct.FallingEdge = falling;
TIM_CaptureConfigStruct.IntOnCaption = interrupt;
TIM_ConfigCapture(LPC_TIM2, &TIM_CaptureConfigStruct);
TIM_ResetCounter(LPC_TIM2);
if (interrupt == 1) {
NVIC_SetPriority(TIMER2_IRQn, ((0x01<<3)|0x01));
NVIC_EnableIRQ(TIMER2_IRQn);
}
TIM_Cmd(LPC_TIM2, ENABLE);
}
void initSumReader(void)
{
Recv.index = 0;
tim_cr0_int_error = 0;
// GPIO_SetDir(TRIG_PORT, TRIG_PIN, 1); // Trigger signal for oscilloscope
// GPIO_SetDir(TRIG_PORT, TRIG_PIN1, 1); // Trigger signal for oscilloscope
// GPIO_SetDir(TRIG_PORT, TRIG_PIN2, 1); // Trigger signal for oscilloscope
// GPIO_ClearValue(TRIG_PORT, TRIG_PIN);
// GPIO_ClearValue(TRIG_PORT, TRIG_PIN1);
// GPIO_ClearValue(TRIG_PORT, TRIG_PIN2);
//Config P1.18 as CAP1.0 | LPC1769 (LQFP100) Pin 32 | LPCXpresso PAD1 (not linked to base board)
PINSEL_CFG_Type PinCfg;
PinCfg.Funcnum = 3;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Portnum = 1;
PinCfg.Pinnum = 18;
PINSEL_ConfigPin(&PinCfg);
TIM_TIMERCFG_Type TIM_ConfigStruct;
TIM_ConfigStruct.PrescaleOption = TIM_PRESCALE_USVAL;
TIM_ConfigStruct.PrescaleValue = 1;
TIM_Init(LPC_TIM1, TIM_TIMER_MODE, &TIM_ConfigStruct);
TIM_CAPTURECFG_Type TIM_CaptureConfigStruct;
TIM_CaptureConfigStruct.CaptureChannel = 0; // use channel 0, CAPn.0
TIM_CaptureConfigStruct.RisingEdge = DISABLE; // Enable capture on CAPn.0 rising edge
TIM_CaptureConfigStruct.FallingEdge = ENABLE; // Disable capture on CAPn.0 falling edge
TIM_CaptureConfigStruct.IntOnCaption = ENABLE; // Generate capture interrupt
TIM_ConfigCapture(LPC_TIM1, &TIM_CaptureConfigStruct);
TIM_ResetCounter(LPC_TIM1);
//TODO check priority for Timer1
NVIC_SetPriority(TIMER1_IRQn, ((0x01 << 3) | 0x01)); // preemption = 1, sub-priority = 1
NVIC_EnableIRQ(TIMER1_IRQn); // Enable interrupt for timer 1
TIM_Cmd(LPC_TIM1,ENABLE);
}
