Make example as README says

examples/stm32/nucleo-f746zg-freertos-mip/Makefile

@@ -14,8 +14,8 @@ SOURCES += FreeRTOS-Kernel/portable/GCC/ARM_CM7/r0p1/port.c
 CFLAGS += -IFreeRTOS-Kernel/include 
 CFLAGS += -IFreeRTOS-Kernel/portable/GCC/ARM_CM7/r0p1 -Wno-conversion
 
-SOURCES += ../../../mongoose.c # Mongoose options are defined in mongoose_custom.h
-CFLAGS += -I../../.. $(CFLAGS_EXTRA)
+SOURCES += mongoose.c  net.c packed_fs.c
+CFLAGS += $(CFLAGS_EXTRA)       # Mongoose options are defined in mongoose_custom.h
 
 ifeq ($(OS),Windows_NT)
   RM = cmd /C del /Q /F /S
@@ -50,6 +50,7 @@ test: CFLAGS_EXTRA += -DUART_DEBUG=USART1
 test: update
 	curl --fail-with-body -su :$(VCON_API_KEY) $(DEVICE_URL)/tx?t=5 | tee /tmp/output.txt
 	grep 'READY, IP:' /tmp/output.txt       # Check for network init
+	grep 'MQTT connected' /tmp/output.txt   # Check for MQTT connection success
 
 clean:
 	$(RM) firmware.* *.su cmsis_core cmsis_f7 FreeRTOS-Kernel

examples/stm32/nucleo-f746zg-freertos-mip/hal.h

@@ -75,7 +75,6 @@ static inline void gpio_output(uint16_t pin) {
 
 static inline void irq_exti_attach(uint16_t pin) {
   uint8_t bank = (uint8_t) (PINBANK(pin)), n = (uint8_t) (PINNO(pin));
-  RCC->APB2ENR |= RCC_APB2ENR_SYSCFGEN;  // Enable SYSCFG
   SYSCFG->EXTICR[n / 4] &= ~(15UL << ((n % 4) * 4));
   SYSCFG->EXTICR[n / 4] |= (uint32_t) (bank << ((n % 4) * 4));
   EXTI->IMR |= BIT(n);
@@ -132,3 +131,12 @@ static inline uint32_t rng_read(void) {
   while ((RNG->SR & RNG_SR_DRDY) == 0) (void) 0;
   return RNG->DR;
 }
+
+#define UUID ((uint8_t *) UID_BASE)  // Unique 96-bit chip ID. TRM 41.1
+
+// Helper macro for MAC generation
+#define GENERATE_LOCALLY_ADMINISTERED_MAC()                        \
+  {                                                                \
+    2, UUID[0] ^ UUID[1], UUID[2] ^ UUID[3], UUID[4] ^ UUID[5],    \
+        UUID[6] ^ UUID[7] ^ UUID[8], UUID[9] ^ UUID[10] ^ UUID[11] \
+  }

examples/stm32/nucleo-f746zg-freertos-mip/main.c

@@ -7,7 +7,6 @@
 #define LED1 PIN('B', 0)   // On-board LED pin (green)
 #define LED2 PIN('B', 7)   // On-board LED pin (blue)
 #define LED3 PIN('B', 14)  // On-board LED pin (red)
-#define BTN1 PIN('C', 13)  // On-board user button
 
 #define LED LED2              // Use blue LED for blinking
 #define BLINK_PERIOD_MS 1000  // LED blinking period in millis
@@ -19,19 +18,12 @@ void mg_random(void *buf, size_t len) {  // Use on-board RNG
   }
 }
 
-// HTTP server event handler function
-static void fn(struct mg_connection *c, int ev, void *ev_data, void *fn_data) {
-  if (ev == MG_EV_HTTP_MSG) {
-    struct mg_http_message *hm = (struct mg_http_message *) ev_data;
-    if (mg_http_match_uri(hm, "/api/debug")) {
-      int level = mg_json_get_long(hm->body, "$.level", MG_LL_DEBUG);
-      mg_log_set(level);
-      mg_http_reply(c, 200, "", "Debug level set to %d\n", level);
-    } else {
-      mg_http_reply(c, 200, "", "%s\n", "hi");
-    }
-  }
-  (void) fn_data;
+static void timer_fn(void *arg) {
+  struct mg_tcpip_if *ifp = arg;                  // And show
+  const char *names[] = {"down", "up", "ready"};  // network stats
+  MG_INFO(("Ethernet: %s, IP: %M, rx:%u, tx:%u, dr:%u, er:%u",
+           names[ifp->state], mg_print_ip4, &ifp->ip, ifp->nrecv, ifp->nsent,
+           ifp->ndrop, ifp->nerr));
 }
 
 static void ethernet_init(void) {
@@ -50,13 +42,6 @@ static void ethernet_init(void) {
       RCC_AHB1ENR_ETHMACEN | RCC_AHB1ENR_ETHMACTXEN | RCC_AHB1ENR_ETHMACRXEN;
 }
 
-static void timer_fn(void *arg) {
-  struct mg_tcpip_if *ifp = arg;                  // And show
-  const char *names[] = {"down", "up", "ready"};  // network stats
-  MG_INFO(("Ethernet: %s, IP: %M, rx:%u, tx:%u, dr:%u, er:%u",
-           names[ifp->state], mg_print_ip4, &ifp->ip, ifp->nrecv, ifp->nsent,
-           ifp->ndrop, ifp->nerr));
-}
 
 static void server(void *args) {
   struct mg_mgr mgr;        // Initialise Mongoose event manager
@@ -66,17 +51,24 @@ static void server(void *args) {
   // Initialise Mongoose network stack
   // Specify MAC address, and IP/mask/GW in network byte order for static
   // IP configuration. If IP/mask/GW are unset, DHCP is going to be used
-  MG_INFO(("Initializing Ethernet driver"));
   ethernet_init();
   struct mg_tcpip_driver_stm32_data driver_data = {.mdc_cr = 4};
-  struct mg_tcpip_if mif = {.driver = &mg_tcpip_driver_stm32,
+  struct mg_tcpip_if mif = {.mac = GENERATE_LOCALLY_ADMINISTERED_MAC(),
+                            .driver = &mg_tcpip_driver_stm32,
                             .driver_data = &driver_data};
   mg_tcpip_init(&mgr, &mif);
-
-  MG_INFO(("Starting Mongoose v%s", MG_VERSION));    // Tell the world
-  mg_http_listen(&mgr, "http://0.0.0.0", fn, &mgr);  // Web listener
   mg_timer_add(&mgr, BLINK_PERIOD_MS, MG_TIMER_REPEAT, timer_fn, &mif);
 
+  MG_INFO(("MAC: %M. Waiting for IP...", mg_print_mac, mif.mac));
+  while (mif.state != MIP_STATE_READY) {
+    mg_mgr_poll(&mgr, 0);
+  }
+
+  MG_INFO(("Initialising application..."));
+  extern void device_dashboard_fn(struct mg_connection *, int, void *, void *);
+  mg_http_listen(&mgr, "http://0.0.0.0", device_dashboard_fn, NULL);
+
+  MG_INFO(("Starting event loop"));
   for (;;) mg_mgr_poll(&mgr, 1);  // Infinite event loop
   (void) args;
 }

examples/stm32/nucleo-f746zg-freertos-mip/mongoose.c

@@ -0,0 +1 @@
+../../../mongoose.c

examples/stm32/nucleo-f746zg-freertos-mip/mongoose.h

@@ -0,0 +1 @@
+../../../mongoose.h

examples/stm32/nucleo-f746zg-freertos-mip/mongoose_custom.h

@@ -7,3 +7,5 @@
 #define MG_ENABLE_TCPIP 1
 #define MG_IO_SIZE 256
 #define MG_ENABLE_CUSTOM_RANDOM 1
+#define MG_ENABLE_PACKED_FS 1
+

examples/stm32/nucleo-f746zg-freertos-mip/net.c

@@ -0,0 +1 @@
+../../device-dashboard/net.c

examples/stm32/nucleo-f746zg-freertos-mip/packed_fs.c

@@ -0,0 +1 @@
+../../device-dashboard/packed_fs.c