ESP8266 part of the f105-motor-demo project (see f105-motor-demo_stm32)
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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* Jeroen Domburg <jeroen@spritesmods.com> wrote this file. As long as you retain
* this notice you can do whatever you want with this stuff. If we meet some day,
* and you think this stuff is worth it, you can buy me a beer in return.
* ----------------------------------------------------------------------------
*/
// Edited: do not fuck with GPIO2, it's used for debug usart output
// GPIO0 remains used as reset btn.
#include <esp8266.h>
//#define LEDGPIO 2
#define BTNGPIO 0
static ETSTimer resetBtntimer;
//void ICACHE_FLASH_ATTR ioLed(int ena) {
// //gpio_output_set is overkill. ToDo: use better mactos
// if (ena) {
// gpio_output_set((1<<LEDGPIO), 0, (1<<LEDGPIO), 0);
// } else {
// gpio_output_set(0, (1<<LEDGPIO), (1<<LEDGPIO), 0);
// }
//}
static void FLASH_FN resetBtnTimerCb(void *arg) {
static int resetCnt=0;
if (!GPIO_INPUT_GET(BTNGPIO)) {
resetCnt++;
} else {
if (resetCnt>=6) { //3 sec pressed
wifi_station_disconnect();
wifi_set_opmode(STATIONAP_MODE); //reset to AP+STA mode
os_printf("Reset to AP mode. Restarting system...\n");
system_restart();
}
resetCnt=0;
}
}
void FLASH_FN ioInit() {
// PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_GPIO2);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO0_U, FUNC_GPIO0);
gpio_output_set(0, 0, 0/*(1<<LEDGPIO)*/, (1<<BTNGPIO));
if (GPIO_INPUT_GET(BTNGPIO) == 0) {
// starting "in BOOT mode" - do not install the AP reset timer
os_printf("GPIO0 stuck low - AP reset button disabled.\n");
} else {
os_timer_disarm(&resetBtntimer);
os_timer_setfn(&resetBtntimer, resetBtnTimerCb, NULL);
os_timer_arm(&resetBtntimer, 500, 1);
os_printf("Note: Hold GPIO0 low for reset to AP mode.\n");
}
}