void* main(void) { #ifdef TCCBOOT int rc; unsigned char* loadbuffer = (unsigned char*)LOAD_ADDRESS; #endif // LCD uses PORTA, so there's lots of pins to check uint32_t* gpio_a = (uint32_t*)0x80003000; // Set b for output *(gpio_a + 0x4) = 0xFFFFFFFF; //0x1 << 18; while (1) { *(gpio_a) = 0xFFFFFFFF; //0x1 << 18; }