X-Git-Url: https://git.ucc.asn.au/?p=uccvend-snackrom.git;a=blobdiff_plain;f=ROM2%2Fmain_basic.c;h=888932e5908dd182150a342a38d2f7c00764b97d;hp=3e886485b45430fe4f6b7d6b99706a1f832dd8ce;hb=8209e6e9a79982684e617d386505952a338b15f2;hpb=c1fd53d73bce8779c822e3ed74de94f40714f9ca

diff --git a/ROM2/main_basic.c b/ROM2/main_basic.c
index 3e88648..888932e 100644
--- a/ROM2/main_basic.c
+++ b/ROM2/main_basic.c
@@ -123,18 +123,14 @@ void ping_pong() {
 	/* make sure it's really a ping */
 	if (sci_rx_buf[1] != 'I' ||
 		sci_rx_buf[2] != 'N' ||
-		sci_rx_buf[3] != 'G') {
+		sci_rx_buf[3] != 'G' ||
+		sci_rx_buf[4] != '\0') {
 		send_nack();
 		return;
 	}
 	/* respond with ack & pong */
 	wait_for_tx_free();
-	sci_tx_buf[0] = 'P';
-	sci_tx_buf[1] = 'O';
-	sci_tx_buf[2] = 'N';
-	sci_tx_buf[3] = 'G';
-	sci_tx_buf[4] = '\n';
-	sci_tx_buf[5] = 0;
+	my_strncpy(sci_tx_buf, "PONG\n", BUFFER_LEN);
 	send_packet();
 }