ARM

Crossworks projects startup and debugging

Posted Thu, 17/12/2009 - 05:20 by peteh

Crossworks or, more accurately, CrossStudio for the Arm, running on a mac is probably one of the better development environments. It has its quirky side but, so far, I am really happy with it. Now might be a good time to look at how projects are organised, how the code gets onto the target and how it is started up…

Crossworks Blinky Project 1

Posted Mon, 14/12/2009 - 04:10 by peteh

With the Rowley Crossworks software set up, it is time to make some code. As usual, it is easiest to start out with a simple LED flasher. Why break with tradition. The target board for this project is the IAR STM32-SK because I happen to have one after winning it in a contest…

Crossworks for the ARM on a mac

Posted Sun, 13/12/2009 - 23:14 by peteh

After much messing about, I finally decided how to do my STM32 ARM development. While there is a certain amount of appeal in the DIY approach, in the end I just want to write code for my processor and not battle to make sure the tools are properly configured. To this end, I have now paid for a personal licence for Rowley Crossworks for the ARM. This cross-platform toolset and IDE will run pretty much identically on Windows, Linux, Solaris and the mac. The compiler is one of the GCC releases and you get almost everything you need in one hit...

Simple ADC use on the STM32

Posted Tue, 26/05/2009 - 02:47 by peteh
Here is a bit of a look at how to use the ADC on the STM32 for simple applications. The ADC peripheral on the STM32 processor is a flexible but complex beast. The peripheral driver library should make it relatively easy to use. After all, there is no need to remember the names of all those pesky registers and bitfields. There are anything up to 18 multiplexed channels that can be converted singly, continually, scanned or discontinuously. The results can be transferred to memory through DMA and some devices have two or more ADCs for simultaneous conversions. With all those options, simple reading of an ADC port is a little tricky...

ARM Cortex-M3 (STM32) development on the Mac

Posted Wed, 06/05/2009 - 03:23 by peteh

stm32-chip

The whole ARM processor core thing is really attractive. Here is a widespread, powerful core available in a whole bunch of packages and processor combinations from a range of suppliers. Then there came the Cortex-M3 version. More interesting still is the ST processor series known as the STM32. These really are interesting. they are cheap, readily available, fast, have a peripheral set that could be made for the kind of tasks I am most interested in and you can get free or low cost development tools…