Post Created date
AVR + SPI (yet another!!)
Ok I checked and there was no swapping or inverting. I was just interpreting the LED's wrong. Now that I have got the character transmission working, I am trying to send a string...
Thursday, 4 March 2010 - 12:56
Is the RS232 cable loose? I have seen sync issues when the connection is intermittent.
Thursday, 4 March 2010 - 02:58
AVR + SPI (yet another!!)
Ok one more question; I noticed that when I was transmitting 0xF0 the SPI slave read it as 0xF0; but the LED's showed it as 0x0F. I am using PORTD with LED's on PD0-PD7.Why are...
Tuesday, 2 March 2010 - 12:39
AVR + SPI (yet another!!)
Thanks for the idea,Cliff. I sent the output to LED's and I am getting 10101010 (U) on the slave. Will now move on to the switch based example.
Tuesday, 2 March 2010 - 11:53
AVR + SPI (yet another!!)
Ok I have simplified my code to just transmit one character (U) from master to slave as follows: master code: //f_osc=8MHz #include #include #define...
Tuesday, 2 March 2010 - 11:23
semicolon after a brace in AVR-GCC-> when?
Maybe the OP means something used like this:(from Dean's USART tutorial) while ((UCSRA & (1 << RXC)) == 0) {}; // Do nothing until data have been recieved and is ready to...
Friday, 26 February 2010 - 04:07
Suggestions on RF module for handheld app.
Thanks for the suggestions,guys. Now comes the million dollar question; which of these modules are FCC certified for hobby projects (NOT selling anything)?
Monday, 22 February 2010 - 14:23
Are these Sparkfun wireless modules FCC certified?
I don't want to sell anything, I just want to build a hobby circuit using this. Do I still need certification?
Monday, 22 February 2010 - 03:59
Suggestions on RF module for handheld app.
Any ideas anybody?
Monday, 22 February 2010 - 03:41
Are these Sparkfun wireless modules FCC certified?
I have seen people here on the forum talk about this. Is there anybody who has used these? If so, did you need certification from the FCC?
Tuesday, 16 February 2010 - 22:07
What's the max current an AVR can take?
Not to hijack the post, but I have a stupid question. If I have all o/p ports of an AVR supplying their max rated current (40 mA?) to a load, will the AVR draw/suck proportionally...
Monday, 15 February 2010 - 16:23
XMega Breakout Board, Spark Fun
Agreed it saves you the messy soldering,but isn't $25 a stiff price for this board? Digikey tells me the Xmega is for $9.41. I wonder how much it would cost to build such a board...
Saturday, 13 February 2010 - 16:24