Thanks ! How could I miss that, I triple-checked particularly these
registers... I'll update my code and test asap.

thanks again
Seb

2011/3/25 Rob Hamerling <[email protected]>

>
> Hi Seb,
>
> On 2011/03/24 21:40, Sebastien Lelong wrote:
>
>  Some more feedback. I'm running this chip using a 16MHz crystal. I took
>> your sample, modified 20_000_000 to 16_000_000, matching my Xtal speed.
>> Indeed, LED is blinking, but not at proper rate (compared visually with
>> jaluino medium, which I know working good). Fuses are exactly the same,
>> PLLDIV/CPUDIV disabled, etc... Actually, it's as though it was running
>> twice faster: if I specify 8_000_000, it seems to blink properly.
>>
>
> I happen to have a testboard for 28-pins PICs and 16 MHz resonator.
> You are right: the led is blinking at 1 Hz, not at 2 Hz as it is supposed
> to do. Reason: wrong CPUDIV, should be:
>
>  pragma target CPUDIV   P1         -- no cycle divisor
>
> With this the LED blinks at 2 Hz.
> I must have overlooked the slow blinking frequency!
> I'll have to check if this is true for other PICs with CPUDIV and I may
> have to adapt the samples.
>
>
>  Some more test using serial: specifying 16MHz just gives garbage chars.
>> Specifying 8MHz, receiving chars works good, but sending chars doesn't
>> work !
>>
>
> I've taken the sample 18f2450_serial_hw_int_cts.jal, modified the PIC of
> the include to 18f27j53, set the clock to 16 MHz and adapted  config bits
> settings to what the 18f27j53 supports.
> It runs fine (at 115200 bps), both input and output are OK.
>
> I also tested with the internal oscillator at 4 and 8 MHz and with serial
> speeds of 2400 and 9600 bps: no problem!
>
>
> Regards, Rob.
>
> --
> R. Hamerling, Netherlands --- http://www.robh.nl
>
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-- 
Sébastien Lelong
http://www.sirloon.net
http://sirbot.org

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