mirror of
https://github.com/cesanta/mongoose.git
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88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
// Copyright (c) 2026 Cesanta Software Limited
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// All rights reserved
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#include "hal.h"
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#include "mongoose.h"
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#define DEBUG_UART USART1
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#define UART_TX PIN('E', 5)
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#define UART_RX PIN('E', 6)
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#define LED_1 PIN('G', 0) // Green LED
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#define LED_2 PIN('G', 8) // Blue LED
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#define LED_3 PIN('G', 10) // Red LED
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static void log_fn(char ch, void *param) {
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hal_uart_write_buf(param, &ch, 1);
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}
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// Blink green LED every 500ms
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static void blink_task(void) {
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static uint64_t blink_timer = 0;
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if (hal_timer_expired(&blink_timer, 500, hal_get_tick())) {
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hal_gpio_toggle(LED_1);
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}
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}
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uint64_t mg_millis(void) {
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return hal_get_tick();
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}
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bool mg_random(void *buf, size_t len) {
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for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
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uint32_t r = hal_rng_read();
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memcpy((char *) buf + n, &r, n + sizeof(r) > len ? len - n : sizeof(r));
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}
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return true;
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}
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static void http_ev_handler(struct mg_connection *c, int ev, void *ev_data) {
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if (ev == MG_EV_HTTP_MSG) { // New HTTP request received
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struct mg_http_message *hm = (struct mg_http_message *) ev_data;
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if (mg_match(hm->uri, mg_str("/api/tick"), NULL)) {
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mg_http_reply(c, 200, "", "{%m:%llu}\n", MG_ESC("tick"), hal_get_tick());
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} else if (mg_match(hm->uri, mg_str("/api/crash"), NULL)) {
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__asm volatile("udf #0"); // Trigger HardFault
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} else {
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mg_http_reply(c, 200, "",
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"Hi from Mongoose!\n"
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"tick: %llu\n"
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"ram used: %zu\n"
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"ram free: %zu\n",
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hal_get_tick(), hal_ram_used(), hal_ram_free());
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}
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}
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}
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int main(void) {
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hal_uart_init(DEBUG_UART, UART_TX, UART_RX, 115200);
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mg_log_set_fn(log_fn, DEBUG_UART);
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hal_rng_init();
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// Initialise pins and turn them off: they are active high
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hal_gpio_output(LED_1), hal_gpio_write(LED_1, true);
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hal_gpio_output(LED_2), hal_gpio_write(LED_2, true);
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hal_gpio_output(LED_3), hal_gpio_write(LED_3, true);
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printf("Initialised. CPU clock: %lu MHz\r\n", SystemCoreClock / 1000000);
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printf("APB1: %u, APB2: %u\r\n", HAL_APB1_FREQUENCY, HAL_APB2_FREQUENCY);
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hal_ethernet_init();
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// Start a minimal web server
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struct mg_mgr mgr;
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mg_mgr_init(&mgr);
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mg_http_listen(&mgr, "http://0.0.0.0", http_ev_handler, NULL);
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MG_INFO(("Initialised. CPU clock: %lu MHz", SystemCoreClock / 1000000));
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MG_INFO(("RAM used: %zu, free: %zu", hal_ram_used(), hal_ram_free()));
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MG_INFO(("Crash record: %M", mg_print_crash_record));
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for (;;) {
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mg_mgr_poll(&mgr, 0);
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blink_task();
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}
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return 0;
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}
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