Function to start listening.

3 files changed, 26 insertions, 8 deletions

diff --git a/rf_test/radio.c b/rf_test/radio.c
index 37cfab9..83bd7c2 100644
--- a/rf_test/radio.c
+++ b/rf_test/radio.c
@@ -96,6 +96,15 @@ uint8_t radio_recv(char *buf, uint8_t n)
 	return read_len;
 }
 
+void radio_listen(void)
+{
+	write_reg(0x01, (read_reg(0x01) & 0xE3) | 0x10);
+	while ((read_reg(0x27) & 0x80))
+		;
+
+	// todo: go to low power mode
+}
+
 void radio_init(const struct radio_cfg *cfg)
 {
 	SPI_DDR |= (1 << SPI_SS) | (1 << SPI_SCK) | (1 << SPI_MOSI);
diff --git a/rf_test/radio.h b/rf_test/radio.h
index 71e3e8b..c56121b 100644
--- a/rf_test/radio.h
+++ b/rf_test/radio.h
@@ -11,6 +11,8 @@ struct radio_cfg {
 
 void radio_init(const struct radio_cfg *cfg);
 
+void radio_listen(void);
+
 void radio_send(const char *data, uint8_t n);
 
 uint8_t radio_recv(char *buf, uint8_t n);
diff --git a/rf_test/recv.c b/rf_test/recv.c
index 64451a0..47b8b7e 100644
--- a/rf_test/recv.c
+++ b/rf_test/recv.c
@@ -1,11 +1,10 @@
+#include <string.h>
 #include <avr/io.h>
 #include <avr/interrupt.h>
 
 #include "radio.h"
 #include "serial.h"
 
-#define PAYLOAD_LEN    13
-
 #define RX_PIN         PB0
 #define RX_DDR         DDRB
 #define RX_PORT        PORTB
@@ -14,21 +13,29 @@
 #define RX_PCMSK       PCMSK0
 #define RX_PCINTVEC    PCINT0_vect
 
+#define MAX_PAYLOAD_LEN 60
+
+static char *s = "hello, world!";
+static uint8_t slen = strlen(s);
+
 int main(void)
 {
 	struct radio_cfg cfg;
 
-	cfg.payload_len = PAYLOAD_LEN;
+	cfg.netid = 0x01;
+	cfg.nodeid = 0x01;
+	cfg.payload_len = slen;
 
 	RX_DDR &= ~(1 << RX_PIN);
 	PCICR |= (1 << RX_PCIE);
 	RX_PCMSK |= (1 << RX_PCINT);
 
 	serial_init();
-	radio_init(&cfg);
-
 	sei();
 
+	radio_init(&cfg);
+	radio_listen();
+
 	for (;;)
 		;
 
@@ -38,13 +45,13 @@ int main(void)
 ISR(RX_PCINTVEC)
 {
 	uint8_t i, n;
-	char buf[PAYLOAD_LEN + 1];
+	char buf[MAX_PAYLOAD_LEN];
 
 	cli();
 
-	serial_write_line("Handling pin change IRQ");
+	serial_write_line("Detected pin change IRQ");
 
-	n = radio_recv(buf, PAYLOAD_LEN);
+	n = radio_recv(buf, MAX_PAYLOAD_LEN - 1);
 	buf[n] = '\0';
 	
 	for (i = 0; i < n; i++)