diff options
Diffstat (limited to 'src/avr/ao_spi_slave.c')
| -rw-r--r-- | src/avr/ao_spi_slave.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/avr/ao_spi_slave.c b/src/avr/ao_spi_slave.c index b742d29a..15e9924d 100644 --- a/src/avr/ao_spi_slave.c +++ b/src/avr/ao_spi_slave.c @@ -18,22 +18,24 @@ #include "ao.h" uint8_t -ao_spi_slave_recv(uint8_t *buf, uint8_t len) +ao_spi_slave_recv(void *buf, uint16_t len) { + uint8_t *b = buf; while (len--) { while (!(SPSR & (1 << SPIF))) if ((PINB & (1 << PINB0))) return 0; - *buf++ = SPDR; + *b++ = SPDR; } return 1; } void -ao_spi_slave_send(uint8_t *buf, uint8_t len) +ao_spi_slave_send(void *buf, uint16_t len) { + uint8_t *b = buf; while (len--) { - SPDR = *buf++; + SPDR = *b++; while (!(SPSR & (1 << SPIF))) if ((PINB & (1 << PINB0))) return; @@ -44,9 +46,8 @@ ao_spi_slave_send(uint8_t *buf, uint8_t len) static uint8_t ao_spi_slave_running; -ISR(PCINT0_vect) +ISR(PCINT0_vect, ISR_BLOCK) { - cli(); #if SPI_SLAVE_PIN_0_3 if ((PINB & (1 << PORTB0)) == 0) #endif @@ -61,7 +62,6 @@ ISR(PCINT0_vect) } else { ao_spi_slave_running = 0; } - sei(); } void |