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https://github.com/cesanta/mongoose.git
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5735ee3269
workaround SysTick race condition in FreeRTOS example
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
// Copyright (c) 2023 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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#include "net.h"
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#define BLINK_PERIOD_MS 1000 // LED blinking period in millis
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// workaround optimizer somehow causing SysTick to fire before FreeRTOS has
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// fully initialized
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extern void xPortSysTickHandler(void);
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void SysTick_Handler(void) {
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if (xTaskGetSchedulerState() != taskSCHEDULER_NOT_STARTED)
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xPortSysTickHandler();
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}
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void mg_random(void *buf, size_t len) { // Use on-board RNG
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for (size_t n = 0; n < len; n += sizeof(uint32_t)) {
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uint32_t r = 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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}
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static void timer_fn(void *arg) {
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struct mg_tcpip_if *ifp = arg; // And show
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const char *names[] = {"down", "up", "req", "ready"}; // network stats
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MG_INFO(("Ethernet: %s, IP: %M, rx:%u, tx:%u, dr:%u, er:%u",
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names[ifp->state], mg_print_ip4, &ifp->ip, ifp->nrecv, ifp->nsent,
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ifp->ndrop, ifp->nerr));
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}
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static void server(void *args) {
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struct mg_mgr mgr; // Initialise Mongoose event manager
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mg_mgr_init(&mgr); // and attach it to the interface
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mg_log_set(MG_LL_DEBUG); // Set log level
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// Initialise Mongoose network stack
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ethernet_init();
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struct mg_tcpip_driver_imxrt_data driver_data = {.mdc_cr = 24, .phy_addr = 2};
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struct mg_tcpip_if mif = {.mac = GENERATE_LOCALLY_ADMINISTERED_MAC(),
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// Uncomment below for static configuration:
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// .ip = mg_htonl(MG_U32(192, 168, 0, 223)),
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// .mask = mg_htonl(MG_U32(255, 255, 255, 0)),
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// .gw = mg_htonl(MG_U32(192, 168, 0, 1)),
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.driver = &mg_tcpip_driver_imxrt,
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.driver_data = &driver_data};
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mg_tcpip_init(&mgr, &mif);
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mg_timer_add(&mgr, BLINK_PERIOD_MS, MG_TIMER_REPEAT, timer_fn, &mif);
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MG_INFO(("MAC: %M. Waiting for IP...", mg_print_mac, mif.mac));
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while (mif.state != MG_TCPIP_STATE_READY) {
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mg_mgr_poll(&mgr, 0);
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}
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MG_INFO(("Initialising application..."));
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web_init(&mgr);
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MG_INFO(("Starting event loop"));
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for (;;) mg_mgr_poll(&mgr, 1); // Infinite event loop
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(void) args;
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}
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static void blinker(void *args) {
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gpio_output(LED); // Setup blue LED
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for (;;) {
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gpio_toggle(LED);
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vTaskDelay(pdMS_TO_TICKS(BLINK_PERIOD_MS));
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}
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(void) args;
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}
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int main(void) {
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uart_init(UART_DEBUG, 115200); // Initialise UART
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// Start tasks. NOTE: stack sizes are in 32-bit words
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xTaskCreate(blinker, "blinker", 128, ":)", configMAX_PRIORITIES - 1, NULL);
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xTaskCreate(server, "server", 2048, 0, configMAX_PRIORITIES - 1, NULL);
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vTaskStartScheduler(); // This blocks
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return 0;
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}
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