Re: Re: 555 BDM startup problem
Peter Woolley <[email protected]>
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers |
|---|---|
| Message-ID | <[email protected]> |
I'm sure that you have already done this, but have you checked the cable attached to the BDM port? I had a problem one time with erratic BDM connection only to find that my cable was the problem. Peter. --- Chuck Smith <[email protected]> wrote: --------------------------------- Thanks Randall for the good suggestion. Unfortunately that didn't work any better. I was able to quantify the problem a bit more though...I can get a debug session to work if I leave the target power off for at least 10 minutes. Also, I was able to program a simple LED flashing program into the internal flash, and it works every time no matter how short the power cycle is, so this is limited to a BDM problem. Chuck Smith Stara Technologies, Inc. --- In [email protected], "Randall Young" <ryoung@n...> wrote: > > > > > Every morning I power up the Abatron BDM pod, > > then the 555 board, > > Chuck, this may have absolutely nothing to do with your problem. But ISTR > reading several years ago that it's important to power up the processor > first. Apparently the BDM pod can put enough power into the processor > through the signal lines to confuse it. > > Anyway, it's easy enough to try. > > Randall Young > Senior Software Engineer > NavCom Technology, Inc. > A John Deere Company > ----------------------------------------------------------- To learn more about Freescale Microcontrollers, please visit http://www.freescale.com/mcu SPONSORED LINKS Freescale semiconductor inc Microcontrollers Pic microcontrollers 8051 microprocessor --------------------------------- YAHOO! GROUPS LINKS Visit your group "MPC500" on the web. To unsubscribe from this group, send an email to: [email protected] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- ___________________________________________________________ To help you stay safe and secure online, we've developed the all new Yahoo! Security Centre. http://uk.security.yahoo.com ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/dN_tlB/TM --------------------------------------------------------------------~-> ----------------------------------------------------------- To learn more about Freescale Microcontrollers, please visit http://www.freescale.com/mcu Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/MPC500/ <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/