LPC MicrocontrollersのトピックRe: 89LPC935 Can't program

89LPC935 Can't program

dave1 — Thu, 15 Aug 2019 14:17:53 GMT

I am unable to find NXP 89LPC935FA chips I can program with a Keil MCB900 and FlashMagic.
The usual suppliers all say the chip is obsolete, no stock.
I found some from China but am unable to get the ISP code to respond in order to program them.
I can get ISP code to respond on older chips, so I know the serial port, MCB900 and setup are correct.
I suspect they have copied the chip but haven't loaded the ISP code.
I find reference to "parallel programming" but can't find any programmers that verifiably program this chip in parallel.
I only need like 35 of these chips to complete this project but I can't program these Chinese chips and there is no US source!
Anybody know where I can get some chips with ISP code or where I can get a programmer to program them in parallel?
Please advise!
Thanks!

Re: 89LPC935 Can't program

soledad — Thu, 15 Aug 2019 17:11:08 GMT

Hi,

Please chec the following application note,

http://www.flashmagictool.com/assets/resources/89LPC932AppNote.pdf

This application note describes how to use Flash Magic with the different versions of the 89LPC932. It describes each version’s ISP abilities and limitations along with how to configure the Keil MCB900 board for use with Flash Magic. Also included is information on using the command line version of Flash Magic.

I hope this helps,

Have a great day,
Sol

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Re: 89LPC935 Can't program

dave1 — Tue, 20 Aug 2019 13:57:17 GMT

Hi Sol! Thanks for your reply.

The last letter on the 89LPC935FA chips that I got through Mouser in the past and the ones I got from China is B, which the link you sent me says is "Engineering sample, should not be used."

I think the Chinese chips were never programmed with ISP code.

Can you tell me what parallel programmer I could use to load the ISP code into these chips?
Or alternatively where I could get 35 of these that have ISP code on them.

I'm in a bad situation where everything for this project is complete but I can't find processors to load our code!

Thanks!
Dave

Re: 89LPC935 Can't program

bernhardfink — Tue, 20 Aug 2019 14:49:39 GMT

Parallel programming tools for LPC900:

PDS900 from Acquara Systems - Link to acquara.com is dead - Look on Google for "PDS900"

EPM900: https://www.google.com/search?client=firefox-b-d&q=epm900+keil

Do it yourself - look into the attachments. (Don't know which of the attachments fits best)

Regards

Bernhard.