I have had a project working on this device, but I would like to calibrate the internal oscillator so I can use a faster baud rate for serial coms.
Cannot get this to work.
I first tried the "interactive serial" Tiny Tuner example, but when i power on the ATTINY the serial terminal receives garbage. I assume this is because the tolerance on my ATTINY is too far out to support 9600bps communication?
So I tried the "Save_To_EEPROM" example.
I have an osciliscope on the "LED" pin, when i send an "x" from the terminal, 9600Baud i see a pulse.
The pulse varies from ~16ms down to 2 or so, in a repeated pattern. The LED never turns fully on indicating the optimum calibration value has been found.
But if i look at the code:
while ( KeepGoing )
{
KeepGoing = tt.update();
for ( uint8_t i=0; i < 2; ++i )
{
digitalWrite( PinLED, ! digitalRead( PinLED ) );
delay( 100 );
}
}
It looks like it should be illuminating the LED for ~ 100ms?
I think my code / device is out by a factor of ~ 10?
I have tried the 1Mhz and 8Mhz Tiny core, the result is always the same.
I first tried the "interactive serial" Tiny Tuner example
Stay with the interactive sketch. It's easier to troubleshoot with it.
but when i power on the ATTINY the serial terminal receives garbage. I assume this is because the tolerance on my ATTINY is too far out to support 9600bps communication?
Very likely.
when i send an "x"
How many 'x' characters did you send? Does your terminal application also send line terminators?
