Dominic, sh... this are bad news :-( Anyway, thank you for the info, Dominic. Regards Herbert At 09:18 26.04.2006 +0200, you wrote: >No, there is no such way. If the bootloader finds the value 0x87654321 at >address 0x1fc, it leaves the JTAG pins configured as GPIO, and they can't be >used for JTAG. > >Regards, > >Dominic > >On Wednesday 26 April 2006 09:14, Herbert Demmel wrote: > > Hi guys, > > > > as I could not find the appropriate information in the manual I ask this > > question to the community: > > > > If I have a (e.g.) LPC2148 device with CRP (0x1FC set to 0x8765 4321), it > > is still possible to re-program the device by completely erasing it before > > re-programming it via the serial port, I assume. > > > > But: If the device has CRP, the JTAG port is disabled as per spec, so it > > seems to be impossible to re-program the device via JTAG port. > > > > Please tell me if I'm right with my assumption or if there is some work > > around to erase/re-program a device via the JTAG pins only when CRP is set. > > > > Regards > > Herbert > > > >SPONSORED LINKS ><http://groups.yahoo.com/gads?t=ms&k=Microcontrollers&w1=Microcontrollers&w2=Microprocessor&w3=Intel+microprocessors&c=3&s=69&.sig=c-HXthtbZy4TZbI3ib0PMg>Microcontrollers ><http://groups.yahoo.com/gads?t=ms&k=Microprocessor&w1=Microcontrollers&w2=Microprocessor&w3=Intel+microprocessors&c=3&s=69&.sig=ijt0SspWtjogcHCuFD0lUQ>Microprocessor ><http://groups.yahoo.com/gads?t=ms&k=Intel+microprocessors&w1=Microcontrollers&w2=Microprocessor&w3=Intel+microprocessors&c=3&s=69&.sig=WOZdpklkgHbXR5quAgrl5w>Intel >microprocessors > > >---------- >YAHOO! GROUPS LINKS > > * Visit your group "<http://groups.yahoo.com/group/lpc2000>lpc2000" > on the web. > * > * To unsubscribe from this group, send an email to: > * > <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe>lpc2000-unsubscribe@yahoogroups.com > > * > * Your use of Yahoo! Groups is subject to the > <http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service. > > >---------- ---------------------------------------------------------- demmel products Radnitzkygasse 43 A-1100 Vienna / Austria / Europe Voice: +43-1-6894700-0 Fax: +43-1-6894700-40 Email: dh@... WWW: http://www.demmel.com [Non-text portions of this message have been removed]
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Re: [lpc2000] Re-programming device with CRP via JTAG ?
2006-04-26 by Herbert Demmel
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