RM0367 Rev 7 995/1043
RM0367 Code examples
1020
TSC->IOHCR &= (uint32_t)(~(TSC_IOHCR_G2_IO3 | TSC_IOHCR_G2_IO4)); /* (2) */
TSC->IER = TSC_IER_EOAIE; /* (3) */
TSC->IOSCR = TSC_IOSCR_G2_IO4; /* (4) */
TSC->IOCCR = TSC_IOCCR_G2_IO3; /* (5) */
TSC->IOGCSR |= TSC_IOGCSR_G2E; /* (6) */
A.10.2 TSC interrupt code example
/* End of acquisition flag */
if((TSC->ISR & TSC_ISR_EOAF) == TSC_ISR_EOAF)
{
TSC->ICR = TSC_ICR_EOAIC; /* Clear flag, TSC_ICR_EOAIC = 1 */
AcquisitionValue = TSC->IOGXCR[1]; /* Get G2 counter value */
}
A.11 Timers
A.11.1 Upcounter on TI2 rising edge code example
/* (1) Configure channel 1 to detect rising edges on the TI1 input
by writing CC1S = ‘01’, and configure the input filter
duration by writing the IC1F[3:0] bits in the TIMx_CCMR1
register (if no filter is needed, keep IC2F=0000).*/
/* (2) Select rising edge polarity by writing CC1P=0 in the TIMx_CCER
register
Not necessary as it keeps the reset value. */
/* (3) Configure the timer in external clock mode 1 by writing SMS=111
Select TI1 as the trigger input source by writing TS=101
in the TIMx_SMCR register. */
/* (4) Enable the counter by writing CEN=1 in the TIMx_CR1 register. */
TIMx->CCMR1 |= TIM_CCMR1_IC1F_0 | TIM_CCMR1_IC1F_1
| TIM_CCMR1_CC1S_0; /* (1 */
//TIMx->CCER &= (uint16_t)(~TIM_CCER_CC1P); /* (2) */
TIMx->SMCR |= TIM_SMCR_SMS | TIM_SMCR_TS_2 | TIM_SMCR_TS_0; /* (3) */
TIMx->CR1 |= TIM_CR1_CEN; /* (4) */
A.11.2 Up counter on each 2 ETR rising edges code example
/* (1) As no filter is needed in this example, write ETF[3:0]=0000
in the TIMx_SMCR register. Keep the reset value.
Set the prescaler by writing ETPS[1:0]=01 in the TIMx_SMCR
register.
Select rising edge detection on the ETR pin by writing ETP=0
in the TIMx_SMCR register. Keep the reset value.
Enable external clock mode 2 by writing ECE=1 in the TIMx_SMCR
register. */
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