Re: [uracoli-devel] Baud rates

[Daniel Thiele]

Hi Keith,

 

115kBaud gives an error of -3.5%, 38k4 only 0.2% acc. to datasheet.

Probably the internal RC oscillator is calibrated on startup, using CLKM of the transceiver as reference frequency.

You would have to execute this in your application too. Sources should be out there anywhere.

 

Best regards

Daniel

 

Von: address@hidden [mailto:address@hidden Im Auftrag von Vasilakes, Keith
Gesendet: Dienstag, 15. Mai 2012 20:00
An: 'address@hidden'
Betreff: [uracoli-devel] Baud rates

 

I’m running Uracoli on a Bitbean, (ATMEGA1281 / AT86RF230)

When I run Bitcloud I can get 115200 baud

When running Uracoli I can get 38k max.

 

I compare the clock settings and they sure look the same…

 

internal RC osc, same...
prescaler set to 1, check
UCSR1A = 0;
UBRR1H = 0;
UBRR1L = 8;

 

What am I missing??

 

Thanks

Keith