Clark, Right after initializing the IIC bus I run the following commands: void setup_screen(void) { iic_start(WDisplay); iic_transmit(0xFE); // Turn autoscroll off iic_transmit(0x52); // Turn autoscroll off iic_transmit(0xFE); // Turn autotransmit key off iic_transmit(0x4F); // Turn autotransmit key...

Hi all, I am using an LK204 with a 4x4 keypad interfaced with a freescale MC9S12. For ease of use I am using the IIC bus to communicate between the controller and the screen. I have observed some strange behavior between the screen and the controller. When one repeatedly writes to the display and th...