Fix IRQ: active low.

3 files changed, 13 insertions, 4 deletions

diff --git a/nrfm.c b/nrfm.c
index c3f8ec9..6f27a82 100644
--- a/nrfm.c
+++ b/nrfm.c
@@ -220,8 +220,9 @@ void radio_init(const uint8_t rxaddr[ADDRLEN])
 
 void radio_sendto(const uint8_t addr[ADDRLEN], const char *msg, uint8_t n)
 {
+	char s[4];
 	uint8_t cfg;
-	uint8_t i, j, jmax;
+	int i, j, jmax;
 	uint8_t rv, maxrt, txds;
 
 	disable_chip();
@@ -235,6 +236,13 @@ void radio_sendto(const uint8_t addr[ADDRLEN], const char *msg, uint8_t n)
 	setaddr(0x10, addr);
 	setaddr(0x0A, addr);
 
+	uart_write("DEBUG: sending to ");
+	uart_write(itoa(addr[0], s, 10));
+	uart_write(".");
+	uart_write(itoa(addr[1], s, 10));
+	uart_write(".");
+	uart_write_line(itoa(addr[2], s, 10));
+
 	for (i = 0; i < n; i += MAXPDLEN) {
 		SPI_PORT &= ~(1 << SPI_SS);
 		SPDR = 0b10100000;
@@ -262,7 +270,7 @@ void radio_sendto(const uint8_t addr[ADDRLEN], const char *msg, uint8_t n)
 		if (txds)
 			uart_write_line("DEBUG: packet sent");
 		else if (maxrt) {
-			uart_write_line("ERROR: failed to send a packet");
+			uart_write_line("ERROR: sendto() failed: MAX_RT");
 			break;
 		}
 	}
diff --git a/recv.c b/recv.c
index 31dbc0f..7217e47 100644
--- a/recv.c
+++ b/recv.c
@@ -23,7 +23,7 @@ int main(void)
 	uint8_t rxaddr[] = { 194, 178, 83 };
 
 	RX_DDR &= ~(1 << RX_PIN);
-	RX_PORT &= ~(1 << RX_PIN); 
+	RX_PORT |= (1 << RX_PIN); 
 	PCICR |= (1 << RX_PCIE);
 	RX_PCMSK |= (1 << RX_PCINT);
 
@@ -53,5 +53,6 @@ int main(void)
 ISR(RX_PCINTVEC)
 {
 	cli();
+	uart_write_line("IRQ detected");
 	rxdr = 1;
 }
diff --git a/send.c b/send.c
index 21ca541..5950ddc 100644
--- a/send.c
+++ b/send.c
@@ -19,7 +19,7 @@ int main(void)
 
 	for (;;) {
 		radio_sendto(txaddr, s, slen);
-		_delay_ms(1000);
+		_delay_ms(2000);
 	}