From 021fd23ab6cb10f9666f26bb5ceb810b42427c52 Mon Sep 17 00:00:00 2001
From: Savanni D'Gerinel <savanni@luminescent-dreams.com>
Date: Sat, 2 Jul 2022 19:36:27 -0400
Subject: [PATCH] Modify the program to regularly send out primes.

---
 prime-tx/main.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/prime-tx/main.c b/prime-tx/main.c
index a2957fd..0b92f32 100644
--- a/prime-tx/main.c
+++ b/prime-tx/main.c
@@ -6,12 +6,16 @@
 #include <stdio.h>
 #include <util/delay.h>
 
-void status(display_t *display, rfm_t *radio) {
+void status(display_t *display, rfm_t *radio, int clock) {
     op_mode_t mode = rfm_mode(radio);
     interrupt_flags_t flags = rfm_interrupts(radio);
 
     display_clear(display);
 
+    char clock_str[16];
+    sprintf(clock_str, "%4d ", clock);
+    display_write_message(display, clock_str);
+
     if (mode.listen_on) display_write_message(display, "Listen ");
     if (mode.mode == sleep) display_write_message(display, "Sleep");
     if (mode.mode == standby) display_write_message(display, "Standby");
@@ -36,6 +40,8 @@ void status(display_t *display, rfm_t *radio) {
 }
 
 int main(void) {
+    int clock = 0;
+
     display_t display = {
         .reg = {
             .output         = { .ddr = &DDRB, .port = &PORTB, .pin = &PINB, .addr = 7 },
@@ -62,20 +68,22 @@ int main(void) {
 
     rfm_init(&radio, (uint8_t [4]){ 0xde, 0xca, 0xfb, 0xad }, 4, &error);
 
-    status(&display, &radio);
-    _delay_ms(1000);
-
-    rfm_transmit(&radio, (uint8_t [7]){ 1, 2, 3, 5, 7, 11, 13 }, 7);
-    status(&display, &radio);
+    status(&display, &radio, clock);
 
+    int next_transmit = 0;
     while (1) {
-        _delay_ms(1000);
-        status(&display, &radio);
+        if (clock >= next_transmit) {
+            rfm_transmit(&radio, (uint8_t [7]){ 1, 2, 3, 5, 7, 11, 13 }, 7);
+            next_transmit = clock + 15;
+        }
+        status(&display, &radio, clock);
         interrupt_flags_t flags = rfm_interrupts(&radio);
 
         if (flags.packet_sent) {
             rfm_standby(&radio);
         }
+        clock++;
+        _delay_ms(1000);
     }
 
     /*