Author Topic: How to recover back to isp  (Read 4316 times)

pak

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How to recover back to isp
« on: January 28, 2007, 05:43:54 am »
Hi,
       Can anyone guide me how to recover back to isp mode if you accidentally erased LPC936?

Thanks,
pak

erikm

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Re: How to recover back to isp
« Reply #1 on: January 29, 2007, 06:56:16 am »
any chip, whatever is erased, can be programmed in a parallel programmer.

the chips are not that expensive (digikey $2), if you do not have, or know someone with, a parallel programmer, just buy a new chip.  Of course, if you have done it to a bunch of chips, buying a parallel programmer (stay away fro Xeltek) may be the better choice.

Erik
erik

pak

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Re: How to recover back to isp
« Reply #2 on: January 30, 2007, 12:47:42 am »
Hi Erik,
        Thank for reply, Do you have any suggestion to avoid corruption of ISP on LPC9xx? I did not touch ISP check box but it still has connection problem. My board is MCB900 and LPC936. Please guide some factors these can corrupt ISP?

Thanks,
pak