*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
#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;
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
} else {
ao_spi_slave_running = 0;
}
- sei();
}
void