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External Memory Async or Sync?
Hi there, We are interfacing our AVR1281 with an FGPA using the external memory bus. We route the CLK0 to the FPGA as clock source. According to the datasheet (AVR1281): Quote:...
Friday, 27 May 2011 - 12:33
USB Mass Storage, Data Flow Question
Hi there, I am trying to implemented USB Mass Storage Functionality in our current project. When I plug the USB into the PC port, I get the CBW for the Inquiry Command of the SCSI...
Monday, 18 April 2011 - 06:56
How to force a inline function
Hi there, using WinAVR20100110, Optimization = s (size), how can I tell the compiler to always inline a function. This doesn't work: inline void Tasks__Exit_Critical_Section(...
Wednesday, 28 July 2010 - 10:01
GCC Function Declaration Warning
Hi all, I have got the following warning for the following piece of code (indirect call to a function): warning: function declaration isn't a prototype (*(void (*)())...
Monday, 5 July 2010 - 08:23
Signature bytes of 1281
Hi there, n my boot program I want to read the signature bytes to ensure that the correct uC is running. When reading the signature bytes using boot.h (avr-gcc), I get the...
Thursday, 1 July 2010 - 12:09
Direct Jump in C
Hi there, Currently I have this (in a C program): asm("jmp 0x1E000"); to jump to my bootloader, but i want to #define the address, so how do I do that?: #define...
Wednesday, 30 June 2010 - 08:12
Unused functions and variables
Hi there, Is there a way for avr-gcc to tell me (perhaps give me a warning) after compilation, that this-and-that function/variable is not used? Thanks J
Tuesday, 29 June 2010 - 13:58
Warning or Error when Program is bigger than X bytes?
Hi there, We are using the Mega1281, using the first 88kbytes for program memory, the next 32kbytes for FPGA configuration and the last 8kbytes for the bootloader. How can I...
Friday, 11 June 2010 - 06:50
Generating Pre-Compiler Error
Hi there, I have got the following define/macro: #define NVRAM__END_ADDRESS_CBIT_HISTORY (NVRAM__START_ADDRESS_CBIT_HISTORY + CBIT__NUMBER_OF_CBIT_HISTORY_EVENTS*sizeof(...
Thursday, 10 June 2010 - 07:41
Can SPM instruction write from App section to Boot section?
Hi all, There is fuses that control the writing (via SPM) from boot to app and boot to boot but what about app to boot? Actually I want to download a new bootloader to the app...
Wednesday, 28 April 2010 - 14:18
FTDI Multi- USB/RS232 Converters
Hi there, We have got a PCB with 2 FTDI 4232 IC's, which gives use 8 VCP comm ports. Our problem is that we don't "see" all 8 comm ports using VB6 or RealTerm or TeraTerm. The...
Monday, 25 January 2010 - 14:30
Main Eindpoint Problem on PDIUSBD12
Hi there, I am trying to get Mass Storage working on AVR. I am using the PDIUSBD12. The enumuration works fine and Windows sees my "USB Mass Storage" device. Problem is, Windows...
Monday, 26 October 2009 - 10:02