topic Re: lpc845 bootloader in LPC Microcontrollers

lpc845 bootloader

worstell — Mon, 16 Oct 2017 01:19:11 GMT

is there a version of lpc21isp for the lpc845?

Re: lpc845 bootloader

jeremyzhou — Tue, 17 Oct 2017 09:37:05 GMT

Thank you for your interest in NXP Semiconductor products and

for the opportunity to serve you.

I was wondering you can explain your question in details, as I'm not clear with it.

Have a great day,

TIC

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Re: lpc845 bootloader

worstell — Tue, 17 Oct 2017 11:48:34 GMT

RE: LPC845 BOOTLOADER
reply from jeremyzhou in LPC - View the full discussion

Re: lpc845 bootloader

starblue — Tue, 17 Oct 2017 19:49:23 GMT

I tried to just add the ids of the new chips, but that isn't enough, it doesn't work. Part identification works OK, but loading data to RAM fails, which is a necessary step for flashing.

Also, since I didn't get any reply from NXP w.r.t. duplicate ids (see this question: https://community.nxp.com/thread/459176) I didn't yet push the change to github.

Regards

Juergen

Re: lpc845 bootloader

ckphua — Mon, 23 Oct 2017 23:38:55 GMT

Juergen,

Just replied to the other thread on Part ID. Please check the web for User Manual update periodically. The error has been corrected.

Re: lpc845 bootloader

starblue — Sat, 14 Apr 2018 17:17:03 GMT

My version at GitHub - starblue/lpc21isp now supports LPC84x, LPC80x and LPC83x (the latter untested).

The issue was that ISP on LPC84x and LPC80x uses more RAM than LPC81x and LPC82x, so ISP conflicted with the RAM buffer for flashing. After moving the RAM buffer it works.