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testing IO pins

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BIITER 2011-04-26 02:59:10 +02:00
parent ba1bf945bd
commit e38d475d40
4 changed files with 37 additions and 0 deletions
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20
firmware/src/edubrm.c
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@ -64,6 +64,7 @@ void SetOutReport (uint8_t dst[], uint32_t length)
break;
case 'P':
states = dst[1];
PinDir(states);
// TODO: set pins to states (1 is INPUT, 0 is OUTPUT)
// pin1 is PIN_1
// pin2 is PIN_2
@ -72,6 +73,7 @@ void SetOutReport (uint8_t dst[], uint32_t length)
case 'o':
which = dst[1] >> 1;
state = dst[1] & 0x01;
PinState(which, state);
// TODO: set output pins (which) to state (state)
// pin1 is PIN_1
// pin2 is PIN_2
@ -80,6 +82,24 @@ void SetOutReport (uint8_t dst[], uint32_t length)
}
}
void PinDir(uint16_t mask) {
mask &= 7;
mask = ((mask & 4) << 5) | ((mask & 2) << 5) | (mask & 1);
LPC_GPIO2->DIR |= mask;
mask |= ~(1<<0 | 1<<6 | 1<<7);
LPC_GPIO2->DIR &= mask;
LPC_GPIO2->MASKED_ACCESS[1<<0] |= 1<<0;
LPC_GPIO2->MASKED_ACCESS[1<<6] |= 1<<6;
LPC_GPIO2->MASKED_ACCESS[1<<7] |= 1<<7;
}
void PinState(uint8_t which, uint8_t state) {
// if (which > 1) which += 4;
// LPC_GPIO2->MASKED_ACCESS[1<<which] |= (1<<which);
// LPC_GPIO2->MASKED_ACCESS[1<<which] &= (1<<which);
}
void TIMER16_1_IRQHandler(void) {
LPC_TMR16B1->IR = 0xff;
LPC_GPIO1->DIR ^= 1<<6;