Post Created date
Mega128 self-programming problem...
I haven't checked, but it might not work if the mega103 compatibility fuse still is programmed (as it is by default). Also, self programming the m128 is somewhat different from...
Thursday, 1 May 2003 - 21:05
Help a newbie -> SPI
An SPI transfer is bidirectional, so each time you transfer a byte, you also receives one. When you read the SPDR register you read the received byte, which in this case would be...
Tuesday, 4 March 2003 - 10:59
Remote upgrading of firmware
Check out the appnote: AVR109 Self Programming AVR With this you can use avrprog to upgrade your mega. -Geir
Tuesday, 4 March 2003 - 09:20
[OT] AvantGo channels with electronics news?
I couldn't find any PDA version of that site. -Geir
Thursday, 27 February 2003 - 14:20
Current program counter in AVR-Asm
Try: rjmp PC-1 -Geir
Monday, 24 February 2003 - 12:35
extra vectors
What's going on is that the m8535def.inc is for the ATmega8535 and the AT90S8535.xml is for the AT90S8535, which is a different device. The include file for the latter is called...
Thursday, 13 February 2003 - 09:49
USART and MPCM
the TXC flag can only be set by hardware and to clear it with software you write 1 to it. That means you should always make sure that the TXC bit is 0 when writing to the register...
Wednesday, 12 February 2003 - 17:40
IAR EW- No Samples?
If I understand correctly, the problem is how to define interrupt handlers: If you are using EWA90 (1.x): interrupt [USART_RXC_vect] void USART_RX_interrupt(void) { blabla...
Tuesday, 21 January 2003 - 10:30
gcc_cmp.bat, start file and windows 2000 problem ("No t
Hi There! You won't find a file called start. Try the following: Open a command promt, enter "start" press enter, and you will see that another command prompt window is opened....
Saturday, 21 December 2002 - 23:22
Is there a limit of source files ?
Hi There! I believe the error comes from the fact that your SRC variable is too long. I had the same error. If I made the SRC variable below a certain number of characters, i didn...
Thursday, 19 December 2002 - 18:18
ATMega128 and .HEX file only support 64K
Hi There! I do not think that is correct. At work, we have made a bootloader in c, and the generated .hex file is programmed in the correct place. The bootloader resides in the...
Thursday, 28 November 2002 - 17:01
eeprom_rb() doesn't work
Hi There Daniel, I don't think it's correct that interrupts must be enabled to use eeprom_rb(). The routine just loops waiting for EEWE. Where in this routine must interrupts be...
Thursday, 21 November 2002 - 08:06

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