Serial to Compact Flash interface for use on PPC

blak3r · Joined: 11 Jan 2004 Posts: 45

I have a circuit that has a serial data stream output. I'd like to use the Compact Flash port on my pocket pc as a serial port thus allowing my device to communicate with the pocket pc through a com port.

An easy solution would be to get a compact flash to rs232 card and then just hook a cable up to my device. But, i'm developping an application demo which i'd rather not have to have my device sloppily connected using a cable and double sided tape to the back of the pda.

I read the spec sheet for CF and i'm confused by what i'd need to do with most of the i/o pins and configuration registers.

I've found a lot of information on how to hook up a PIC to a CF Card. But, my application is a little more complicated since i need to interface with a CF Host controller that's on the Pocket PC. If anyone has any information on how to do this please let me know.

Thanks.
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Hans Wedemeyer · Joined: 15 Sep 2003 Posts: 226

Just a thought....

If your PPC has BT then I should think that would be an even better solution.

I've been using BlueRadio's BT modules... these are small units and I can recommend them.

http://www.blueradios.com/hardware.htm#BRC11

Hans W

Guest · Posted: Wed Jun 16, 2004 7:02 am

Interesting idea... I'll check out the pda later today. But, i think since i got the wireless lan option it doesn't have bluetooth.

When you use one of these bluetooth chips can you use a standard driver to make the device show up as a standard com port?

If you could, please let me know what is required on the windows side of things.

If it does then that isn't a bad idea.

Hans Wedemeyer · Joined: 15 Sep 2003 Posts: 226

pat · Joined: 07 Sep 2003 Posts: 40 Location: Adelaide, Australia

Hi Hans,

These devices look very nice. I am struggling to find a detailed data sheet for the device. Is there any datasheet more detailed than

http://www.blueradios.com/BR-C19.pdf?

Also are you using the UART interface? I notice there is an SPI interface, but says for internal use only - not sure what that means? There is also a PCM interface, do you use that?

I'm sure these pins are defined somewhere, but I can't find it!

Sorry this is off topic.

Cheers,
Patrick

pat · Joined: 07 Sep 2003 Posts: 40 Location: Adelaide, Australia

Can anyone help me please - I'm wondering if there's a detailed datasheet for these deviecs.