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Lpc2000

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Re-programming device with CRP via JTAG ?

2006-04-26 by Herbert Demmel

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

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