1 files changed, 61 insertions, 0 deletions
diff --git a/firmware/s1224/src/common/main.c b/firmware/s1224/src/common/main.c
new file mode 100644
index 0000000..ae17585
--- /dev/null
+++ b/firmware/s1224/src/common/main.c
@@ -0,0 +1,61 @@
+/*
+ * T-Modem-s1224 — USB KISS half-TNC + softmodem AFSK (PWM TX / Goertzel RX).
+ * Three UF2 builds (300 / 1200 / 2400). No TCM3105 chip path.
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ */
+#include "pico/stdlib.h"
+#include "board_pins.h"
+#include "status.h"
+#include "ptt.h"
+#include "modem_probe.h"
+#include "usb_cmd.h"
+#include "display.h"
+#include "crystal_steer.h"
+#include "baud_config.h"
+#include "config.h"
+#include "sense.h"
+#include "afsk_soft.h"
+#include "banner.h"
+#include "hardware/gpio.h"
+#include <stdio.h>
+
+int main(void)
+{
+    stdio_init_all();
+    sleep_ms(800);
+
+    board_pins_init();
+    ptt_init();
+    config_init();
+    display_init();
+    sense_init();
+    afsk_soft_init();
+    usb_cmd_init();
+    afsk_rx_set_callback(usb_cmd_on_rx_frame);
+
+    status_set(S1224_STATE_STARTING);
+    status_publish();
+    /* Fixed boot banner — always once after CDC ready; source-only (banner.c). */
+    banner_print();
+
+    modem_probe_result_t probe = modem_probe_run();
+    if (probe.ready) {
+        status_set(S1224_STATE_READY);
+    } else {
+        status_set(S1224_STATE_FAULT);
+    }
+    status_publish();
+
+    while (true) {
+        usb_cmd_poll();
+        afsk_rx_poll();
+        sense_poll();
+
+        gpio_put(PIN_LED_DCD, sense_signal_active() ? 1 : 0);
+        gpio_put(PIN_LED_PTT, ptt_get() ? 1 : 0);
+        gpio_put(PIN_LED_TXRX, sense_packet_active() ? 1 : 0);
+
+        status_tick();
+        sleep_us(50);
+    }
+}