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USART and normal port operation
I can't find it in datasheet; if I enable USART it overrides normal port operation. Can I in this situation use PINx register to read the IO pin to which Rx USART signal is...
Tuesday, 6 July 2010 - 19:25
Problems with AVR availability…
Hi guys, For the last couple of months there is a permanent lack of AVR microprocessors, and prices are crazy. Now for simple AVR I have to pay more than for a 32-bit, full...
Thursday, 1 July 2010 - 08:28
Gcc 4.3.3 (WinAVR 20100110) while loop misoptimization
Hi, Can you confirm that in some situations gcc misoptimize while loop? The code: Quote: uint8_t portmask=1; uint8_t tmpADCNo=variable; while(tmpADCNo--) portmask<<=1;...
Friday, 4 June 2010 - 12:55
How to define one-way linked structure in FLASH?
Hi, Is it possible to define a one-way linked structure in FLASH? Something like this: struct test { prog_char *stringptr; test *next; }; So one element has a pointer to the...
Sunday, 25 April 2010 - 09:33
AVR-gcc 4.5.0
Hi, a couple months ago I posted an information about gcc 4.4.2 on Linux. The main advantage of new compiler version was smaller code, but the benefits were not very huge. Today I...
Friday, 23 April 2010 - 12:19
How to force gcc to use only one copy of string?
Hi, I wonder if it is possible or I'm doing something wrong"¦ Let's assume I have in different program locations the same string "Cancel". The string is entirely in FLASH "“ in...
Friday, 9 April 2010 - 15:29
AVR-gcc 4.4.2 seems to perform better than 4.3.2
Hi, I just compared results of WinAVR gcc 4.3.2 with AVR-gcc-4.4.2 under Linux. Gcc-4.4.2 was provided by distribution packages (Fedora 12), the same project, the same makefile,...
Wednesday, 2 December 2009 - 19:31
AVR Studio 4.18 bug
When I'm trying to add a file to project, which was previously added misleading message is displayed: Not a big deal, but I lost a couple of minutes trying to figure out why I...
Friday, 27 November 2009 - 20:52
gcc – how to use multiple CPU cores for compilation?
As my program is getting bigger and bigger, the compilation time grows too. Under linux I have "“j switch which causes gcc to use multiple CPU cores, so the compilation is almost...
Wednesday, 18 November 2009 - 22:37
New gcc version, when?
Hi, the current WinAVR was released half year ago, so it's pretty old. I'm just curious, when we can expect a new version? I meantime a few new gcc versions were released and...
Saturday, 14 November 2009 - 18:20
RS485 multimaster protocol
I'm looking for multimaster RS485 protocol implemented on AVR. Do you know something like that? If not, maybe someone can share with experience about developing it? It shouldn't...
Saturday, 24 October 2009 - 15:23
USART in MPCM – errors
Hi, I have a question regarding USART in MPC mode. I need to address somehow every device on the bus, but if I set them in MPC mode they will respond only to their particular...
Sunday, 18 October 2009 - 12:49

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