Lpc2000

My XTAL freq is 14.7456 MHz
Pll factor is 4 -> CPUclk=58,9824MHz
PLL div is 2 ->  29,4912MHz
VPB div is 4 -> 14.7456MHz

But I saw maybe a problem in software, because I set the value to 
program flash to XTALfreq /1000.
I've to recheck it when I'll finish my bootloader.
Generally, the correct factor would be the CPUclk.
Regards, Ralf

sig5534 schrieb:

> Well I think I found an answer.  My system is using a 24MHz xtal, and I
> am using the PLL to up it to 48MHz.
>
> As you see I was div the 48MHz by 1000 to give IAP the value in kHz. 
> So I tried div the 48MHz by 2000 instead:
>
> The erase time dropped from 400mS to 200mS.
>
> Obviously this clock parameter is directly affecting the timing.
>
> Is it suppose to be the CCLK(48MHz) or the XtalOsc(24MHz) ?
>
> If your's is coming out at 100mS, seems like you would have to have yet
> another ratio, say div by 4.
>
> What is your PLL freq, Xtal Freq, and the value you are putting into
> the IAP param?
>
> Thanks,  Chris.
>
>
>
>
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-- 

Mit freundlichen Gr\ufffd\ufffden / Best regards
Ralf Knorr
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