main.c

#include "pico/stdlib.h"
#include "pico/bootrom.h"
#include "hardware/watchdog.h"
#include "hardware/structs/watchdog.h"
#include "hardware/clocks.h"
#include "hardware/structs/clocks.h"

#include "tusb_lwip_glue.h"

#define LED_PIN     25

// let our webserver do some dynamic handling
static const char *cgi_toggle_led(int iIndex, int iNumParams, char *pcParam[], char *pcValue[])
{
    gpio_put(LED_PIN, !gpio_get(LED_PIN));
    return "/index.html";
}

static const char *cgi_reset_usb_boot(int iIndex, int iNumParams, char *pcParam[], char *pcValue[])
{
    reset_usb_boot(0, 0);
    return "/index.html";
}

static const tCGI cgi_handlers[] = {
  {
    "/toggle_led",
    cgi_toggle_led
  },
  {
    "/reset_usb_boot",
    cgi_reset_usb_boot
  }
};

uint8_t tud_network_mac_address[6] = {0x02,0x02,0x84,0x6A,0x96,0x00};

void core1(){
	init_lwip();
    wait_for_netif_is_up();
    //dhcpd_init();
    httpd_init();
    http_set_cgi_handlers(cgi_handlers, LWIP_ARRAYSIZE(cgi_handlers));
    
    // For toggle_led
    gpio_init(LED_PIN);
    gpio_set_dir(LED_PIN, GPIO_OUT);

}

void cyw43_cb_tcpip_set_link_up(cyw43_t *self, int itf) {
    cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
}
void cyw43_cb_tcpip_set_link_down(cyw43_t *self, int itf) {
    cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
}


int main()
{
    // Initialize tinyusb, lwip, dhcpd and httpd
	set_sys_clock_khz(250000 , true); // Set system clock to 250 MHz
	cyw43_arch_init_with_country(CYW43_COUNTRY_INDIA);
    cyw43_arch_enable_sta_mode();
	cyw43_wifi_pm(&cyw43_state, cyw43_pm_value(CYW43_NO_POWERSAVE_MODE, 20, 1, 1, 1));
	cyw43_hal_get_mac(0, tud_network_mac_address);
	multicore_launch_core1(core1);
    absolute_time_t next_wifi_try = 0;
	int eth_frame_send_success;
    while (true)
    {
        tud_task();
        service_traffic();
		if (absolute_time_diff_us(get_absolute_time(), next_wifi_try) < 0) {
                eth_frame_send_success = cyw43_arch_wifi_connect_async("aayush-iphone", "1234567890", CYW43_AUTH_WPA2_MIXED_PSK);
				next_wifi_try = make_timeout_time_ms(10000);
		}
    }

    return 0;
}