DP256 lockup | 68HC12 | EmbeddedRelated.com

Hi, I am using the DP256 - did some extensive debugging in software. Did not write to flash or EEPROM but I have lost the CPU while downloading via Zap and P&E multi link. I tried unsecure form P&E but it did not help this time. The funny thing is i did not do any strang prodding etc. I just clicked the download button and its dead now. Not even unsecure can rectify this. Im running at 50mHz at the moment. I tried the development tool suite on another board - all OK. All else checks out fine. Any clues What is the latest mask - since I am new with the Motorola processors. The DP256 is my first experience with the Motorola processors, how stable and bug free is this core? Thanks Fred Glaum [Non-text portions of this message have been removed]

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Hi, I am glad (an very :) to state that I massaged my DP256 back to live!! The lockup or BDM lockout occured with a faulty code image downloaded to the CPU running with a clock osc. at 50Mhz. The P&E unsecure software could not reverse this condition....... so I slapped a 4Mhz clock osc. in the system and shes back on line!!! Remember the trick, might just save some sorry ass oneday!! Frank Glaum ----- Original Message ----- From: frank To: Sent: Thursday, June 19, 2003 4:52 PM Subject: [68HC12] DP256 lockup Hi, I am using the DP256 - did some extensive debugging in software. Did not write to flash or EEPROM but I have lost the CPU while downloading via Zap and P&E multi link. I tried unsecure form P&E but it did not help this time. The funny thing is i did not do any strang prodding etc. I just clicked the download button and its dead now. Not even unsecure can rectify this. Im running at 50mHz at the moment. I tried the development tool suite on another board - all OK. All else checks out fine. Any clues What is the latest mask - since I am new with the Motorola processors. The DP256 is my first experience with the Motorola processors, how stable and bug free is this core? Thanks Fred Glaum [Non-text portions of this message have been removed] Yahoo! Groups Sponsor -------------------------------------------------------- To unsubscribe from this group, send an email to: To learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. [Non-text portions of this message have been removed]

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Discussion Groups | 68HC12 | DP256 lockup

DP256 lockup - frank - Jun 19 18:52:00 2003

Re: DP256 lockup - frank - Jun 20 4:44:00 2003