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/DISCARD/ output section question
Hi, i try to use the /DISCARD/ output section, but it will not work. I tried the following statement in linker script: /DISCARD/ : { __foo_start = . ; *(.foo*)...
Thursday, 14 January 2010 - 08:02
avrdude and bootloader
Hi, i want to flash a bootloader file for a mega2560. The .hex file only includes the bootloader code which is about 4kB, but avrdude starts programming from 0x0000 to the last...
Thursday, 17 September 2009 - 11:00
gcc inline asm
Hi, is there a constraint to input a function adress to an inline assembler code part like this: void foo2(void) { } void foo1(void) { __asm__ __volatile__( "jmp...
Wednesday, 5 August 2009 - 08:16
WinAVR linker question
Hi there, does anybody know the exact syntax or has an example for the usage of the ASSERT(exp,message) statement for a linker script ? I tried it like this ASSERT(0, "error!");...
Sunday, 15 March 2009 - 14:58
How to locate a section before .data section ?
Hi, i'am using a Mega2560 with WinAVR. I want to locate a special uninitialized memory section with a fixed size before the .data (initialized ram) section. How can this be done...
Saturday, 14 March 2009 - 08:41
Conditional linking
Hi, is there a possibility to enable/disable an output section declaration in a linker script via a label/def from the makefile or cmdline ? Thanx tmo
Tuesday, 2 September 2008 - 17:00
How to force GCC to issue a jmp instruction ?
Hi, i want to call a function with a jmp instruction on mega2560. How can i force the GCC to issue not a call instruction, but a jmp instruction. An inline assembler macro would...
Tuesday, 19 August 2008 - 16:27
How to connect oscillator load caps to GND
Hi, how do you prefer to connect the load caps of an oscillator to a gnd plane on a 4 layer board: - direct to gnd plane at cap place ? - via trace to a gnd supply pin of the...
Friday, 15 February 2008 - 20:36
avrlib-c 1.61 with older gcc
Hi, is it possible to use the newest lib-c (1.6.1) with older gcc versions i.e. 4.1.1 or 4.1.2 ? thanks tmo
Thursday, 27 December 2007 - 20:18
crystal and gnd-plane
hi, i'am designing a four layer pcb with inner layers gnd and vcc. Now my qustion is, should i cut the crystal area out of the gnd and vcc planes, should i use a special gnd...
Thursday, 6 December 2007 - 16:16
Single GND-plane vs. split GND-plane
Hi, i'am routing a 4-layer board with an avr, some analog parts, digital parts and switched power (up to 40 A) parts. I'am not sure, if using a single gruond plane or split gnd...
Sunday, 18 November 2007 - 10:57
Constant current source 15mA
Hi, i need a linear constant current source with about ~13mA current. It must be working on 5V supply. Another goal is to use as low as possible parts. The accurance is not...
Sunday, 7 October 2007 - 16:24