coldfire

CodeWarrior vs. CodeSourcery G++ for ColdFire Development

I am interested in any comparative analysis between Freescale's CodeWarrior tool chain and CodeSourcery G++ for developing embedded applications for the ColdFire family of processors. ...

Interfacing a slow device to a MCF5270 Microcontroller

Hi, I'm looking for ways to interface a slow device (an ADC - ~1.2MHz) to my mcf5270 microcontroller, which is a rather fast device (~150MHz). I am using ADC0817, and have tried the following: GPIO read off the data lines, memory mapped access (since the adc is uP compatible). When mapped as a location in memory, I am using the maximu...

Address Error in Assembly (ColdFire MCF5307)

Taking my first course in assembly language, I am frustrated with cryptic error messages during debugging... I acknowledge that the following information will not be enough to find the cause of the problem (given my limited understanding of the assembly language, ColdFire(MCF5307, M68K family)), but I will gladly take any advice. ......

Documentation for CMX ColdFire USB-Lite stack

This is my first embedded project, so bear with my ignorance. I've been asked to implement Remote NDIS over USB, using the ColdFire USB-Lite stack by CMX. I've been searching for a long time now, and can't find any clear documentation for this stack. It comes with some woefully documented sample code and the only useful resource I've b...

Bitbanging a PIO on Coldfire/ucLinux

Here's the problem: I need to program some hardware via 2 pins of the PIO (1 clock, 1 data). Timing constraints are tight - 10ms clock cycle time. All this, of course, whilst I maintain very high level services (CAN bus, TCP/IP). The downstream unit also ACKS by asserting a PIO pin, configured as an input, high. So this loop has to both ...

USB enumeration failure in ColdFire MCF52259

Anybody with programming experience on the ColdFire line, please help! I'm using the CMX USB-Lite stack with the ColdFire MCF52259. For some reason, USB enumeration fails at the very first step, as soon as I enable the DP pull-up resistor. This is what I'm doing :- INT_ENB, OTG_INT_EN, ERR_ENB are set to 0x0 INT_STAT, OTG_INT_STAT and...

codeSourcery G++ Lite Edition is a freeware?

hi, codeSourcery G++ Lite Edition is a freeware or Sharware? any help please? please see the link "http://www.codesourcery.com/sgpp/lite_edition.html" ...