Hi guys

I have just started with the 9260 & Win CE and I can’t seem to find much info on accessing the cpu peripherals like the PIO’s SPI ADC etc. Now I basically know that you have to lookup the memory map in the data sheet then map it and use it that way.

So if I wanted to play with the PB3, PB4 & LED on the dev kit what is the easiest way to do this?

Will this cause problems with Win CE i.e if I am running an ap which is playing with IO and then it tries to use that IO for some background task this will obviously turn bad real quick. How do I avoid this?

Then how do I go from toggling leds and reading button to something a little more involved, say controlling a device on the spi or reading from the image sensor interface? Should I be looking at writing a Win CE device driver?

Many thanks


p.s i know of the msdn embedded site & newsgroup but are there any other good resources out there for Atmel ARM & Win CE?

The easiest way to start in Windows CE with the SAM9261EK board is to made a little project to control a LED and a button. So you will need the SAM9260 datasheet and the 9260EK schematic to doing that (you can found this document on at91.com).

For help you to begin and understand the basic function, you can found an attachement which contain a little Platform Builder project that you can add to your Pbworkspace. This project will show you basic mecanism (switch on a led by driving PIO controller, using interrupt system).

Pierre for Adeneo.

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http://www.adeneo-embedded.com

Hello,

I'm at the same point now. Just want to toggle a simple LED on the board.
Where can I find thist attachment.
Is there any open source available?
Can you give me a link?

Thanks.

The new at91.com forum can't permit you to attach a file.

PHYSICAL_ADDRESS PhysAddr;
AT91PS_PIO g_pPIO;

// Get the virtual address of the PIOA
PhysAddr.LowPart = (DWORD) AT91C_BASE_PIOA;
PhysAddr.HighPart = 0;
g_pPIO = (AT91PS_PIO) MmMapIoSpace(PhysAddr,sizeof(AT91S_PIO),FALSE);

// Configure the PIOA6
g_pPIO->PIO_PER = AT91C_PIO_PA6;
g_pPIO->PIO_OER = AT91C_PIO_PA6;

// Switch off the Led by setting PA6
g_pPIO->PIO_SODR = AT91C_PIO_PA6;

// Switch on the Led by clearing PA7
g_pPIO->PIO_CODR = AT91C_PIO_PA6;

MmUnmapIoSpace(g_pPIO,sizeof(AT91S_PIO));

Be careful, with windows CE 6.0, you can't use the function MmMapIoSpace in a user application due to protection access to kernel memory section.

Hello,

We use this forum to answer technical questions. If you need any marketing information please ask our commercial team at the following address: contact.msembedded@adeneo.eu.

We'll forward directly your request to them this time, but in the future it'll be quicker if you contact them directly.

Kind Regards,
Adeneo