Lpc2000

Guillermo Prandi wrote:

>Hi. Are Flash write errors normal, i.e. a known issue? When 
>programming my LPC2138 using the isp21lpc utility, every now and then 
>I get a write error; a second attempt always succeed. This happens 
>roughly once every 100 programming attempts. I thought it could have 
>been a problem with my serial cable or some other hardware problem, 
>but now I added an IAP function to my test program and I am getting 
>errors too (i.e., saved data differs from the source data, although 
>the IAP copy ram to flash command returns CMD_SUCCESS). I checked 
>everything and I think I covered the normal requisites:
>
>  
>

There seems to be something goofy going on with those utils.  I tried 
using the lpc21isp (version 1.24) package on Linux, but it would 
sometimes error out at random locations.  Not sure why.

I finally had to write an ISP loader for an LPC2138 to program an 
LPC2106.  This loader source I then took an hung some RS232 routines 
onto it so I could also up load into the LPC2138 from Linux.  So far, my 
loader works flawlessly.

Go figure.

TomW


-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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