S12 / MagniV MicrocontrollersのトピックRe: EEPROM

EEPROM

EagleBeak — Thu, 21 Sep 2006 04:19:07 GMT

The MC9S12E128 data sheet explains how to configure the INITEE register but according to the memory map and technical summary, there is no on-chip EEPROM. Is that not right?

If that's the case, is it possible to program the FLASH EEPROM from the Microcontroller operating program? I have calibration constants that I need to retain when power is off. This means, I will be programming pages of FLASH from code running in FLASH. Is this possible?

Thanks,

Eagle Beak

Re: EEPROM

colinh — Thu, 21 Sep 2006 18:43:23 GMT

Hi

Unless the 128k flash consists of 2 or more blocks (which I doubt) you will need to execute some of your code out of RAM. There is an app note: http://www.freescale.com/files/microcontrollers/doc/app_note/AN2720.pdf
which describes how to do it.

Colin

Re: EEPROM

EagleBeak — Sat, 23 Sep 2006 01:00:22 GMT

Colin,

Thanks. Of all the documents people have recommended, AN2720 is the most straight forward.

Eagle Beak

Re: EEPROM

jag — Thu, 05 Oct 2006 20:40:34 GMT

Hi,
there is anything (a guide, or a demo) for the 56F8013 DSP?

I need to save some data to the flash between power ups and I've no clue how to do this.

Thanks bye Jack