// Copyright (c) 2018-2021 Cesanta Software Limited // All rights reserved #include "mcu.h" // These are NUCLEO-F103RB settings - adjust for your specific board #define RAM_SIZE 20480 // RAM size on this device, needed by link.ld #define ROM_SIZE 131072 // Flash size for this device, needed by link.ld #define LED1 PIN('A', 5) // On-board LED pin static inline void led_toggle(void) { gpio_toggle(LED1); } static inline void init_hardware(void) { RCC->APB2ENR |= BIT(2) | BIT(3) | BIT(4); // Init GPIO banks A,B,C gpio_init(LED1, OUTPUT); // Set LED }