mongoose/examples/stm32/nucleo-f746zg-freertos-mip/main.c
2022-12-19 14:31:54 +00:00

84 lines
3.2 KiB
C

// Copyright (c) 2022 Cesanta Software Limited
// All rights reserved
#include "mcu.h"
#include "mongoose.h"
// 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 ethernet_init(void) {
// Initialise Ethernet. Enable MAC GPIO pins, see
// https://www.farnell.com/datasheets/2014265.pdf section 6.10
uint16_t pins[] = {PIN('A', 1), PIN('A', 2), PIN('A', 7),
PIN('B', 13), PIN('C', 1), PIN('C', 4),
PIN('C', 5), PIN('G', 11), PIN('G', 13)};
for (size_t i = 0; i < sizeof(pins) / sizeof(pins[0]); i++) {
gpio_init(pins[i], GPIO_MODE_AF, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_INSANE,
GPIO_PULL_NONE, 11);
}
nvic_enable_irq(61); // Setup Ethernet IRQ handler
RCC->APB2ENR |= BIT(14); // Enable SYSCFG
SYSCFG->PMC |= BIT(23); // Use RMII. Goes first!
RCC->AHB1ENR |= BIT(25) | BIT(26) | BIT(27); // Enable Ethernet clocks
RCC->AHB1RSTR |= BIT(25); // ETHMAC force reset
RCC->AHB1RSTR &= ~BIT(25); // ETHMAC release reset
}
static void server(void *args) {
struct mg_mgr mgr; // Initialise Mongoose event manager
mg_mgr_init(&mgr); // and attach it to the MIP 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
MG_INFO(("Initializing Ethernet driver"));
ethernet_init();
struct mip_driver_stm32 driver_data = {.mdc_cr = 4}; // See driver_stm32.h
struct mip_if mif = {
.mac = {2, 0, 1, 2, 3, 5},
.driver = &mip_driver_stm32,
.driver_data = &driver_data,
};
mip_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
while (args == NULL) mg_mgr_poll(&mgr, 1000); // Infinite event loop
mg_mgr_free(&mgr); // Unreachable
}
static void blinker(void *args) {
uint16_t led = PIN('B', 7);
gpio_init(led, GPIO_MODE_OUTPUT, GPIO_OTYPE_PUSH_PULL, GPIO_SPEED_MEDIUM,
GPIO_PULL_NONE, 0);
for (;;) {
gpio_toggle(led);
vTaskDelay(pdMS_TO_TICKS(750));
MG_INFO(("blink %s, RAM: %u", (char *) args, xPortGetFreeHeapSize()));
}
}
int main(void) {
clock_init(); // Set clock to max of 180 MHz
systick_init(FREQ / 1000); // Tick every 1 ms
uart_init(UART3, 115200); // Initialise UART
xTaskCreate(blinker, "blinker", 128, ":)", configMAX_PRIORITIES - 1, NULL);
xTaskCreate(server, "server", 2048, 0, configMAX_PRIORITIES - 1, NULL);
vTaskStartScheduler(); // This blocks
return 0;
}