mongoose/examples/stm32/nucleo-f746zg-keil-freertos-tcp/main.c
2023-05-26 16:20:25 +01:00

107 lines
3.4 KiB
C

// Copyright (c) 2023 Cesanta Software Limited
// All rights reserved
#include "hal.h"
#include "net.h"
#include "main.h"
extern RNG_HandleTypeDef hrng;
#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
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 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
MG_INFO(("Initialising application..."));
web_init(&mgr);
MG_INFO(("Starting event loop"));
for (;;) mg_mgr_poll(&mgr, 1000); // 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;
}
// https://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/TCP_Networking_Tutorial_Initialising_TCP.html
void vApplicationIPNetworkEventHook(eIPCallbackEvent_t ev) {
static bool mongoose_started = false;
MG_INFO(("FreeRTOS-Plus-TCP net event: %d", ev));
if (ev == eNetworkUp && mongoose_started == false) {
uint32_t ip = FreeRTOS_GetIPAddress();
MG_INFO(("READY, IP: %M", mg_print_ip4, &ip));
xTaskCreate(server, "server", 2048, 0, configMAX_PRIORITIES - 1, NULL);
mongoose_started = true;
}
}
extern void mx_init(void);
struct hwaddr { uint8_t macaddr[6]; };
int main(void) {
mx_init(); // Setup clock and all peripherals configured in CubeMX
// Initialise random number generator
// Initialise ethernet pins
uint8_t macaddr[6] = GENERATE_LOCALLY_ADMINISTERED_MAC();
// required for fallback if DHCP fails
static const uint8_t ipaddr[4] = {192, 168, 0, 77};
static const uint8_t netmask[4] = {255, 255, 255, 0};
static const uint8_t dnsaddr[4] = {8, 8, 8, 8};
static const uint8_t gwaddr[4] = {192, 168, 0, 1};
FreeRTOS_IPInit(ipaddr, netmask, gwaddr, dnsaddr, macaddr);
MG_INFO(("MAC: %M. Waiting for IP...", mg_print_mac, macaddr));
// Start tasks. NOTE: stack sizes are in 32-bit words
xTaskCreate(blinker, "blinker", 128, ":)", configMAX_PRIORITIES - 1, NULL);
vTaskStartScheduler(); // This blocks
return 0;
}
// Hooks for FreeRTOS-Plus-TCP network interface
#include "stm32f7xx_hal_conf.h"
#include "stm32fxx_hal_eth.h"
void HAL_ETH_MspInit(ETH_HandleTypeDef *heth) {
if (heth->Instance == ETH) {
HAL_NVIC_SetPriority(ETH_IRQn, ipconfigMAC_INTERRUPT_PRIORITY, 0);
HAL_NVIC_EnableIRQ(ETH_IRQn);
__HAL_RCC_ETH_CLK_ENABLE();
}
}
uint32_t ulApplicationGetNextSequenceNumber(uint32_t a, uint16_t b, uint32_t c,
uint16_t d) {
(void) a, (void) b, (void) c, (void) d;
uint32_t x;
HAL_RNG_GenerateRandomNumber(&hrng, &x);
return x;
}
BaseType_t xApplicationGetRandomNumber(uint32_t *p) {
HAL_RNG_GenerateRandomNumber(&hrng, p);
return pdTRUE;
}