I have designed an ICE for the 9S12H256 and have experience with the H256.
I am also familiar with the H256 LCD driver from the analog PRU (Port
Replacement Unit) for the LCD function of this emulator. The H family LCD
Driver can drive up to 128 LCD segments arrange in up to 32 Front-Planes *
4 Back-Planes, and the VLCD can be adjusted to fine-tune the LCD contrast.
If you have the budget, the H256 full-ICE ban be a significant jump-start
for your development:
For example you can use the ICE in stand-alone mode to develop code and try
it with an LCD, before you have a target board laid-out. Once you have a
target board, you can connect it to the ICE, and continue your development
with all the added benefits of a full ICE over a BDM (Execution and bus
activity recording in a Trace. Ability to test and debug Resets, Power-Down
modes, Clock-Loss Limp-Home mode, and full use of the internal H256 PLL,
including frequent speed changes).
Hope this helps,
HC12 In-Circuit Emulators
At 11:49 AM 7/24/2003 -0500, you wrote:
>Are any of you currently using the MC9S12H128 or MC9S12H256 micros?
>The 9S12H includes an LCD driver. This provides enough advantages for me
>to redesign my 68HC812A4 product to reduce my overall part count & PCB size.
>I am interested in your personal experiences (opinions) with the 9S12H
>series and any target PCB's available that would help me to jump-start my