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Mega128 JTAG pins - Use for analog?
I am fairly desperate for 3 extra analog inputs on my current project, requirements are not too arduous as I simply want to monitor some supply voltage rails. 8 bit performance...
Tuesday, 5 May 2009 - 08:59
AVR simulator error when opening hex file
I have a project that consists of a separate bootloader and application. The bootloader provides various BIOS-like services for the main application, called through a jump table (...
Friday, 20 February 2009 - 12:58
Debugging bootloader and application
I have a bootloader and application written as entirely separate projects. For various reasons the application calls functions within the bootloader via a jump table located at a...
Wednesday, 13 August 2008 - 20:58
Code won't run unless using debugger
Using AVR Studio 4.14 Build 589 with JTAG ICEII. Project is compiled with GCC (WinAVR 20070525). Target device is Mega128, programmer connection is via JTAG rather than ISP....
Wednesday, 4 June 2008 - 14:56
Modify or remove .init2 section?
When my bootloader jumps to the main application, interrupts are enabled (and running within the bootloader section). However, the .init2 section of the starup code disables...
Tuesday, 25 July 2006 - 13:18
Prevent main app killing bootloader RAM
I have a Mega 128 that I have developed a fairly complex bootloader for, and all seems good apart from RAM allocation. Essentialy I need to make sure that the main application...
Friday, 7 July 2006 - 11:46
Reserve Rom
I am trying to find out how I can can tell the linker not to use an area of memory. The Hitech linker which I am quite familliar with has a "RESROM" command line switch, does GCC...
Wednesday, 21 June 2006 - 09:53
stdint.h and limits.h
I'm using the C99 standard integer types in my project, and I have a situation where I need to detect overflows etc. Limits.h has macros that define the maximum and minimum...
Thursday, 9 June 2005 - 07:47
Optimisation query
Whilst simulating some code to check execution times, I was a little shocked to see the amount of code the compiler produced for what should have been a simple bit test. I am...
Wednesday, 25 May 2005 - 17:24
Embedding fuse data in hex file
PIC programming utilities can embed configuration fuse data into the main hex file, meaning that a device can be programmed without having to specify any of these settings to the...
Friday, 13 August 2004 - 13:12