ColdFire/68K Microcontrollers and ProcessorsのトピックRe: Connecting LCD to M5213

Connecting LCD to M5213

MLudwig — Sat, 02 Sep 2006 02:44:39 GMT

Hi,

I am new to Coldfire and now having project to connect M5213 to LCD display (44780 compatible). Is there any sample/application note I can look at?

Thanks.

M. Ludwig

Re: Connecting LCD to M5213

Lotus — Mon, 04 Sep 2006 18:01:47 GMT

I have the same problem. I´m using a M5213EVB board and want to connect a HD44780 compatible LCD. It would be nice if Freescale (or someone else) could provide an application note for the Coldfire, like the AN2940 for the HC08 processor. I´m primarly writing in C and using CodeWarrior.

Thanx.

/Dan

Re: Connecting LCD to M5213

MLudwig — Fri, 08 Sep 2006 12:31:26 GMT

OK, I've some info about how to do this. We can actually use shift register to convert serial bits coming from one of the GPIO to 8-bit data used for data, another pin to control the EN input, and one to control R/W*.
But I still doubt if connecting this 5V TTL register (and the LCD controller) to 3V level inputs on M5213 will work.

Any thought?

Re: Connecting LCD to M5213

Nouchi — Fri, 08 Sep 2006 13:17:38 GMT

Hi,

You could use a level translator such as the ST2378E from STM wich is bidirectional and 15KV ESD protected.

Emmanuel