tile1 386 bsp/drv/arm/gba/swkbd.c uint16_t *tile1 = KBD1_TILE; tile1 394 bsp/drv/arm/gba/swkbd.c tile1[i] = 0; tile1 405 bsp/drv/arm/gba/swkbd.c tile1[i * 4 + 32 + j] = val1;