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MKL27Z touch

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This commit is contained in:
NIIBE Yutaka
2016-06-29 17:05:33 +09:00
parent 663cbabe7c
commit c71a24ddcb
1 changed files with 25 additions and 36 deletions
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61
example-fs-bb48/touch.c
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@@ -24,42 +24,6 @@ static struct TPM *const TPM1 = (struct TPM *const)0x40039000;
static chopstx_intr_t tpm1_intr; static chopstx_intr_t tpm1_intr;
#define INTR_REQ_TPM1 18 #define INTR_REQ_TPM1 18
void
touch_init (void)
{
chopstx_claim_irq (&tpm1_intr, INTR_REQ_TPM1);
PORTB->PCR1 = (1<<3) /* TPM1_CH1 */
| (0<<6) /* DriveStrengthEnable=0 */
| (0<<4) /* PassiveFilterEnable=0 */
| (1<<2) /* SlewRateEnable = slow */
| (0<<1) /* pull enable = 0 */
| (0<<0) /* puddselect= 0 */
;
/* TOF clear, TOIE=1, CPWMS=0, CMOD=1, PS=000. */
TPM1->SC = 0xc4;
/* Input capture mode: MSB = 0, MSA = 0 */
/* Rising edge: ELSB=0 ELSA=1 */
TPM1->C1SC = 0x82;
TPM1->POL=0;
/* Triggered by TPM1_CH1. */
/* channel 1: TRGSEL=0010 */
/* external: TRGSRC=0 */
/* active low:TRGPOL=1 */
/* stop on overflow: CSOO=1 */
/* start on trigger: CSOT=1 */
TPM1->CONF = 0x02c30000;
/* Wait overflow. */
chopstx_intr_wait (&tpm1_intr);
/* Clear overflow. */
TPM1->SC |= 0x80;
}
uint16_t uint16_t
touch_get (void) touch_get (void)
{ {
@@ -87,3 +51,28 @@ touch_get (void)
return TPM1->C1V; return TPM1->C1V;
} }
void
touch_init (void)
{
chopstx_claim_irq (&tpm1_intr, INTR_REQ_TPM1);
/* TOF clear, TOIE=1, CPWMS=0, CMOD=1, PS=000. */
TPM1->SC = 0xc4;
/* Input capture mode: MSB = 0, MSA = 0 */
/* Rising edge: ELSB=0 ELSA=1 */
TPM1->C1SC = 0x82;
TPM1->POL=0;
/* Triggered by TPM1_CH1. */
/* channel 1: TRGSEL=0010 */
/* external: TRGSRC=0 */
/* active low:TRGPOL=1 */
/* stop on overflow: CSOO=1 */
/* start on trigger: CSOT=1 */
TPM1->CONF = 0x02c30000;
touch_get ();
}