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Avr mega64C1
Depending on your C compiler optimization selection, this is not guaranteed to work: CLKPR = 0x80; CLKPR = 0x00; // Clock prescaler Reset This is supposed to always work: #...
Friday, 11 January 2013 - 17:37
Tiny828 External Clock Confusion
The ATtiny828 does not support any external crystal or external ceramic resonator connected directly to the AVR pins. You may only use an external crystal or external ceramic...
Friday, 11 January 2013 - 15:39
Avr mega64C1
The MCP2551 TXD input pin 1 goes to the ATmega16C1 TXCAN output pin 6. The MCP2551 RXD output pin 4 goes to the ATmega16C1 RXCAN input pin 7. The source of the MCP2551 RXD output...
Friday, 11 January 2013 - 05:32
Avr mega64C1
ntosis wrote:i disconnected the second node and i have had signal in 2nd MCP2551 at 4 pin RXD and nothing in pin1.The only way for the MCP2551 to have pin 4 RXD signals is from...
Thursday, 10 January 2013 - 20:11
Avr mega64C1
The MCP2551 is a 5 volt Vdd chip, so it needs a 5 volt power source connected to the Vdd pin 3 and a ground connected to Vss pin 2. This also means your AVR CAN chip needs to run...
Thursday, 10 January 2013 - 16:06
At90CAN32. How to get rid of Tx Form Error (FERR, FERG) ?
Oops, I failed to notice your code example included the CANCDMOB write inside your for() loop: for (i = 0; i...
Wednesday, 9 January 2013 - 19:39
At90CAN32. How to get rid of Tx Form Error (FERR, FERG) ?
Another possible problem is you did not check the read only CANEN MOb busy bit before starting the new Tx command. You did write a disable command to the MOb first, but the CAN...
Wednesday, 9 January 2013 - 09:31
At90CAN32. How to get rid of Tx Form Error (FERR, FERG) ?
Your opening code tag is missing and all you have is the [ character. The closing code tag at the end of the code is correct. This is easy for you to edit and correct. First your...
Wednesday, 9 January 2013 - 08:51
Avr mega64C1
ntosis wrote:i have a second node, i want to be sure that the software working with the uE....Are you sure that the software is good for the uE?I have no way to even try and...
Monday, 7 January 2013 - 21:20
Avr mega64C1
You are applying the wrong model to your choice of using a 60 ohm termination with only a single node. True, looking at the static DC model two 120 ohm resistors in parallel are a...
Monday, 7 January 2013 - 19:50
AVR Oscillator Frequency (fosc)
No, it is not the same as changing the CKDIV8 fuse. The clock_prescale_set() is run time program code that does not change any fuse values. Before changing CKDIV8 read the data...
Monday, 7 January 2013 - 04:38
Tiny25 internal oscillator temp drift
Oops, well if NASA/JPL can do spacecraft navigation calculations in miles/hour, the flight center uses them as kilometers/hour and stuff two spacecraft into Mars..... at least I...
Monday, 7 January 2013 - 00:52

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