Nuvoton Cortex-M0 韌體：從 datasheet 到 TFT 驅動

/* Generated via Rinky-Dink RGB565 converter.
   const keyword pins the array into Flash —
   zero SRAM allocation at runtime. */
const unsigned short img2[44000] = {
    0x0000, 0x0000, 0x1082, 0x2965, 0x41A7, 0x62AB,
    0x832F, 0xA4B3, 0xC636, 0xE7BA, 0xFFFF, 0xFFDE,
    /* ... 44 000 entries — each a 16-bit RGB565 pixel ... */
};

/* Memory-mapped I/O: writing to an EBI-mapped
   address emits one pixel on the bus. */
void tft_blit(const uint16_t *buf, uint32_t n) {
    for (uint32_t i = 0; i < n; i++) {
        EBI_WRITE_DATA(buf[i]);    // asserts CS/WR strobe
    }
}

int main(void) {
    SYS_Init();            // clock tree + multifunction pins
    EBI_Open(0, 16);      // 16-bit bus on bank 0
    TFT_Init();            // controller reset + init sequence
    tft_blit(img2, 44000);
    while (1) { __WFI(); }    // sleep, wake on interrupt
}