Add Raspberry Pi Pico port (#1232)

* Add Raspberry Pi Pico port - Adds BACnet/IP with abstracted network layer - Adds BACnet MS/TP support using RS485/UART - Includes README with examples * Add Pico 2 MS/TP demo, CI, and docs
2026-03-25 14:22:09 +01:00
parent 5eda68d381
commit 17e94092a1
17 changed files with 1720 additions and 0 deletions
@@ -0,0 +1,66 @@
+/**************************************************************************
+ *
+ * Copyright (C) 2025 Testimony Adams <adamstestimony@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later WITH GCC-exception-2.0
+ *
+ *********************************************************************/
+
+#include <stdint.h>
+
+#include "pico/stdlib.h"
+
+#include "dlenv.h"
+#include "mstimer_init.h"
+
+#include "bacnet/basic/binding/address.h"
+#include "bacnet/basic/object/device.h"
+#include "bacnet/basic/services.h"
+#include "bacnet/basic/tsm/tsm.h"
+#include "bacnet/datalink/datalink.h"
+#include "bacnet/npdu.h"
+
+static uint8_t PDUBuffer[MAX_MPDU + 16];
+
+int main(void)
+{
+    uint16_t pdu_len = 0;
+    BACNET_ADDRESS src = { 0 };
+
+    stdio_init_all();
+    systimer_init();
+
+    address_init();
+    Device_Set_Object_Instance_Number(12345);
+    Device_Init(NULL);
+
+    if (!pico_dlenv_init(2)) {
+        while (true) {
+            tight_loop_contents();
+        }
+    }
+
+    apdu_set_unrecognized_service_handler_handler(handler_unrecognized_service);
+    apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);
+    apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_HAS, handler_who_has);
+    apdu_set_confirmed_handler(
+        SERVICE_CONFIRMED_READ_PROPERTY, handler_read_property);
+    apdu_set_confirmed_handler(
+        SERVICE_CONFIRMED_READ_PROP_MULTIPLE, handler_read_property_multiple);
+    apdu_set_confirmed_handler(
+        SERVICE_CONFIRMED_WRITE_PROPERTY, handler_write_property);
+    apdu_set_confirmed_handler(
+        SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
+        handler_device_communication_control);
+
+    Send_I_Am(&Handler_Transmit_Buffer[0]);
+
+    for (;;) {
+        pdu_len = datalink_receive(&src, &PDUBuffer[0], MAX_MPDU, 0);
+        if (pdu_len) {
+            npdu_handler(&src, &PDUBuffer[0], pdu_len);
+        }
+        tsm_timer_milliseconds(1);
+        tight_loop_contents();
+    }
+}