avr/avr_demo
avr/avr_demo
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This commit is contained in:
Mika Tuupola 2011-09-16 22:50:37 +03:00
parent ebaf86a86c
commit 7950677939
1 changed files with 21 additions and 17 deletions
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4
digital_read/main.c
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@ -52,6 +52,10 @@ static int uart_getchar(FILE *stream) {
return UDR0;
}
static int digital_read(sfr, bit) {
return bit_is_set(sft, bit) && 1;
}
void init(void) {
/* Make PORTD3..7 PORTD0..1 (Arduino digital 3..9) input by clearing bits in DDR */