Post Created date
Beginner Question [programming Arduino with Asm]
Quote:My thought is to spend a little bit of time with assembly language just so that I can learn about how data moves around within a processor. You might find it interesting to...
Saturday, 10 December 2011 - 17:11
can you do two single adc conversion after each other?
Have you connected AVcc to Vcc and GND to the GND pin next to AVcc?
Saturday, 10 December 2011 - 13:04
spi slave code
From datasheet of mega164 (same applies for all AVR's as far as I know)Quote:In SPI Slave mode, the control logic will sample the incoming signal of the SCK pin. To ensure correct...
Saturday, 10 December 2011 - 12:20
spi slave code
The maximum speed for an AVR SPI slave is 1/4 of the CPU clock. I.e running at 16MHz you can receive at 4MHz.
Saturday, 10 December 2011 - 11:34
Avoid AVR becoming "smoked" tips
Quote:Regarding my question on how sensitive is for ESD, does anyone know? I've been touching AVR pins almost daily for over a decade and only once I've encountered a strange...
Friday, 9 December 2011 - 17:18
minimum allowed resistor for pull ups
That should work. Since we're humans we DO make stupid mistakes and the R1 resistor would save you from letting out magic smoke if by mistake pin was configured as output. as Doc...
Thursday, 8 December 2011 - 22:40
minimum allowed resistor for pull ups
When the pin is configured as input you can connect GND or any voltage below Vcc directly to the pin. No need for the serial resistor. This is only necessary if the pin is...
Thursday, 8 December 2011 - 22:27
hang lcd
Quote:do you know any book that describe avr works or complete reference?The reference for AVR is the datasheet for your model. Everything you need to know about how AVR's work is...
Thursday, 8 December 2011 - 22:17
hang lcd
Quote:but if that return without a jump, where go back on my main program? RETURN will do the jump back to MAIN. Program will continue in MAIN from code line following where it...
Thursday, 8 December 2011 - 11:17
hang lcd
Quote:i understand return , routines and other. i am a software programmer. No, you do not understand. Have you tried to remove JMP MAIN?
Thursday, 8 December 2011 - 09:44
Can PORTD internal pull up be used for smbus?
Quote:Using one of his famous pseudonyms perhaps?Sorry for that, too little coffee.
Saturday, 3 December 2011 - 12:53
Can PORTD internal pull up be used for smbus?
Setting SDA and SCl lines as high outputs is violating the specs, as Cliff explained. So why on earth are you doing that? This might destroy other devices connected to the bus....
Saturday, 3 December 2011 - 11:55