Start work on nRF24L01.

1 files changed, 64 insertions, 0 deletions

diff --git a/nRF24L01/recv.c b/nRF24L01/recv.c
new file mode 100644
index 0000000..1c6ac0f
--- /dev/null
+++ b/nRF24L01/recv.c
@@ -0,0 +1,64 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+#include "radio.h"
+#include "serial.h"
+
+#define RX_PIN         PD7
+#define RX_DDR         DDRD
+#define RX_PORT        PORTD
+#define RX_PCIE        PCIE2
+#define RX_PCINT       PCINT23
+#define RX_PCMSK       PCMSK2
+#define RX_PCINTVEC    PCINT2_vect
+
+#define MAX_PAYLOAD_LEN 60
+
+static char *s = "hello, world!";
+static uint8_t slen = 13;
+
+int main(void)
+{
+	struct radio_cfg cfg;
+
+	cfg.netid = 0x01;
+	cfg.nodeid = 0x01;
+	cfg.payload_len = slen;
+
+	RX_DDR &= ~(1 << RX_PIN);
+	RX_PORT &= ~(1 << RX_PIN); 
+	PCICR |= (1 << RX_PCIE);
+	RX_PCMSK |= (1 << RX_PCINT);
+
+	serial_init();
+
+	radio_init(&cfg);
+	radio_listen();
+
+	sei();
+
+	for (;;)
+		;
+
+	return 0;
+}
+
+ISR(RX_PCINTVEC)
+{
+	uint8_t i, n;
+	char buf[MAX_PAYLOAD_LEN];
+
+	cli();
+
+	serial_write_line("Detected pin change IRQ");
+
+	n = radio_recv(buf, MAX_PAYLOAD_LEN - 1);
+	buf[n] = '\0';
+	
+	for (i = 0; i < n; i++)
+		serial_write(buf[i]);
+	serial_write('\r');
+	serial_write('\n');
+
+	sei();
+}