mongoose/examples/stm32/nucleo-f746zg-keil-freertos/main.c

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// Copyright (c) 2023 Cesanta Software Limited
// All rights reserved
#include "hal.h"
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#include "net.h"
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#include "main.h"
#define BLINK_PERIOD_MS 1000 // LED blinking period in millis
extern void xPortSysTickHandler(void);
void SysTick_Handler (void) {
HAL_IncTick();
// xPortSysTickHandler() must be called after vTaskStartScheduler() and mx_init() takes longer than 1ms
if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
xPortSysTickHandler();
}
void mg_random(void *buf, size_t len) { // Use on-board RNG
extern RNG_HandleTypeDef hrng;
for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
uint32_t r;
HAL_RNG_GenerateRandomNumber(&hrng, &r);
memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
}
}
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
mg_mgr_init(&mgr); // and attach it to the interface
mg_log_set(MG_LL_DEBUG); // Set log level
// 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
struct mg_tcpip_driver_stm32_data driver_data = {.mdc_cr = 4};
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_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 != MG_TCPIP_STATE_READY) {
mg_mgr_poll(&mgr, 0);
}
MG_INFO(("Initialising application..."));
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web_init(&mgr);
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MG_INFO(("Starting event loop"));
for (;;) mg_mgr_poll(&mgr, 1); // Infinite event loop
(void) args;
}
static void blinker(void *args) {
for (;;) {
HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_7); // Blink On-board blue LED
vTaskDelay(pdMS_TO_TICKS(BLINK_PERIOD_MS));
}
(void) args;
}
extern void mx_init(void);
int main(void) {
mx_init(); // Setup clock and all peripherals configured in CubeMX
// Initialise random number generator
// Initialise ethernet pins
// Start tasks. NOTE: stack sizes are in 32-bit words
xTaskCreate(blinker, "blinker", 128, ":)", configMAX_PRIORITIES - 1, NULL);
xTaskCreate(server, "server", 2048, 0, configMAX_PRIORITIES - 1, NULL);
vTaskStartScheduler(); // This blocks
return 0;
}