diff options
| author | NIIBE Yutaka <gniibe@fsij.org> | 2016-06-29 17:05:33 +0900 |
|---|---|---|
| committer | NIIBE Yutaka <gniibe@fsij.org> | 2016-06-29 17:05:33 +0900 |
| commit | c71a24ddcb22b8ba5d1fb45d1393838d1110b1b5 (patch) | |
| tree | d4795b8fbcdb30a935ae7a71a49e41c2ca38d027 /example-fs-bb48 | |
| parent | 663cbabe7c2de647d7e8335f18474b108676cbb0 (diff) | |
MKL27Z touch
Diffstat (limited to 'example-fs-bb48')
| -rw-r--r-- | example-fs-bb48/touch.c | 61 |
1 files changed, 25 insertions, 36 deletions
diff --git a/example-fs-bb48/touch.c b/example-fs-bb48/touch.c index ec9a0bf..033da62 100644 --- a/example-fs-bb48/touch.c +++ b/example-fs-bb48/touch.c @@ -24,42 +24,6 @@ static struct TPM *const TPM1 = (struct TPM *const)0x40039000; static chopstx_intr_t tpm1_intr; #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 touch_get (void) { @@ -87,3 +51,28 @@ touch_get (void) 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 (); +} |