Embedded

Trouble using malloc on ARM (Yagarto)
This may be too late to help the original poster, but I just came across the same issue. The problem was that sbrk was called before malloc_init, so sbrk had null pointers for beginning and end of heap memory. george Does it always return 0x00000008 regardless of how many times you've called malloc, or reg... 27 Oct 2009 08:05

How to create a code in C++ for LM3S811 in IAR Embedded Workbench
Hi everyone, I'm trying to develop an application in C++ for the LM3S811 kit with IAR. I've already included the "extern C" in the file startup.c, but when I compile the code, I receive the following warning message: Warning[Lp012]: no sections with name CSTACK included - special symbol CSTACK$$Limit(referen... 27 Oct 2009 08:05

Disabling interrupts to protect data
Hi Guys, I am working on some RTOS, in which I see lot of interrupts "enabling" and "disabling" code in most of the RTOS API's to protect kernel data. For example, Semaphore API's, Message Queue APIs, Runtime memory management API's. Is enabling / disabling interrupts only to protect the kernel data? Why I am a... 1 Nov 2009 06:43

ALP for Real Time Clock using timer unit of HC12
HI, I am implementing an ALP program to implement a real time clock to display hour,minute,second using features available in a timer unit. Digits have to displayed on one of the GPIO ports of HC12 micro-controller. I do know how to proceed on this in C language but am a newbie in micro-controllers and assembly ... 11 Nov 2009 05:39

fx2lp out endpoint not arming (AUTOOUT mode)
>Hi. I just saw this thread and initially didn't notice that it's aged. My experience is that the FIFORESET only works when EPxFIFOCFG is 0x00 (manual mode). So in my code I clear it to 0x00, do the FIFORESET stuff, do OUTPKTEND for each buffer and eventually program EPxFIFOCFG to the desired value. ... 16 Nov 2009 10:07

Where to rent logic analyzer near Toronto, Canada?
I'm having trouble with an EEPROM and an LCD module hooked to an AT91SAM7S256. Software is using the at91lib TWI_* routines that came with an evaluation kit. The program seems to be hanging up on incomplete I/O with the LCD module, but I don't know why. Analyzing the TWI (aka I2C) protocol would either nail ... 26 Oct 2009 05:33

T I P S and T R I C K S are in L O V E with each other
New very interesting affair in a Tech Galaxy. For detail Visit http://www.ComputerTipsnTricks.com or <http:// www.ComputerTipsnTricks.com> ... 17 Oct 2009 04:15

Small insect inside my screen … (interesting problem)
Small insect inside my screen … (interesting problem) Hi, Look at this poor guy's cry for help after he founds out very tiny little animals living in my screen. A whole new meaning to "buggy" computer hardware. (Submitted by Dr. Sheila John) Visit http://www.ComputerTipsnTricks.com or <http:// www.Compute... 16 Oct 2009 09:39

Does anyone have current contact details for Jerry D. Harthcock?
Hello, Does anyone know how to contact Jerry Harthcock? Yours faithfully, Colin Paul Gloster ... 15 Oct 2009 14:57

Statechart tool to generate C
I'm looking for a Statechart (Harel) tool that supports C code generation, and is free (not trial copies). Any suggestions? ... 31 Oct 2009 11:02