topic MC9S12HZ256 EEPROM writing problem in S12 / MagniV Microcontrollers https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12HZ256-EEPROM-writing-problem/m-p/137462#M2564 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>maybe, someone could help, I'm experiencing a problem with storing any data to EEPROM of HZ256 using same algorithm, as I use for e.g. DT256 (and working well).</SPAN><BR /><BR /><SPAN>I tried to burn some pattern into EEPROM and result is, whole EEPROM array is $00. Erase seems to work well, after that I can read $FF.</SPAN><BR /><BR /><SPAN>My HZ256 is member of 3L16Y maskset (QAD0620) and existing errata doesn't describe such a problem.</SPAN><BR /><BR /><SPAN>I'll keep on to find the reason, maybe I omitted some important difference in programming algo.</SPAN></BODY></HTML> Wed, 20 Jun 2007 15:59:48 GMT Andik 2007-06-20T15:59:48Z MC9S12HZ256 EEPROM writing problem https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12HZ256-EEPROM-writing-problem/m-p/137462#M2564 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>maybe, someone could help, I'm experiencing a problem with storing any data to EEPROM of HZ256 using same algorithm, as I use for e.g. DT256 (and working well).</SPAN><BR /><BR /><SPAN>I tried to burn some pattern into EEPROM and result is, whole EEPROM array is $00. Erase seems to work well, after that I can read $FF.</SPAN><BR /><BR /><SPAN>My HZ256 is member of 3L16Y maskset (QAD0620) and existing errata doesn't describe such a problem.</SPAN><BR /><BR /><SPAN>I'll keep on to find the reason, maybe I omitted some important difference in programming algo.</SPAN></BODY></HTML> Wed, 20 Jun 2007 15:59:48 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12HZ256-EEPROM-writing-problem/m-p/137462#M2564 Andik 2007-06-20T15:59:48Z Re: MC9S12HZ256 EEPROM writing problem https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12HZ256-EEPROM-writing-problem/m-p/137463#M2565 <HTML><HEAD></HEAD><BODY>Ok, my <B>problem is solved,</B> I made mistake in bootloader, which uses another port. When I tried to program EEPROM via BDM, all worked. Sorry...</BODY></HTML> Thu, 21 Jun 2007 20:34:23 GMT https://community.nxp.com/t5/S12-MagniV-Microcontrollers/MC9S12HZ256-EEPROM-writing-problem/m-p/137463#M2565 Andik 2007-06-21T20:34:23Z