LPC824 IAP routines do not work on common comand/result buffer

wernerf — Tue, 30 Aug 2016 09:05:39 GMT

Hi all,

working on an LPC824 project I re-used the IAP routines of an older LPC1768 project which worked fine there. These IAP routines use a common buffer for both command input and result output. The user manual explicitely allows this to be done.

Unfortunately this doesnt work with the LPC824 (at least Rev. 1A). You will always get an INVALID_COMMAND code as result. It looks like the IAP routine writes to ComRes[0] too soon an kills its own command.

So the user manual (UM10800) is wrong here and you HAVE TO use two different buffers.

Re: LPC824 IAP routines do not work on common comand/result buffer

jeremyzhou — Wed, 31 Aug 2016 03:22:14 GMT

Hi Werner Fritsch,

I'd like to suggest that you can refer to the flashiap demo in the LPCOpen, and the demo demonstrates programming a FLASH block during run-time and generating a FLASH signature.

The LPCOpen's link:

cache.nxp.com/files/microcontrollers/software/LPCWare/lpcopen_2_19_keil_iar_nxp_lpcxpresso_824.zip

Hope it helps.
Have a great day,
Ping

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LPC MicrocontrollersのトピックLPC824 IAP routines do not work on common comand/result buffer

LPC824 IAP routines do not work on common comand/result buffer

Re: LPC824 IAP routines do not work on common comand/result buffer