Remote Control question

[mlmoore]

I know this has been discussed before, but does anyone have any current information on how to build a simple remote control for a Jukebox Recorder?  It doesn't appear Archos have them available for sale any longer and I always heard that one wasn't very well constructed.  I have build several electronics projects in the past and think I could handle this if I don't have to design it from scratch.

[LinusN]

It is a simple device that sends rs232 characters at 9600 bps (3V TTL levels).

The character codes (from serial.c):

#define PLAY  0xC1
#define STOP  0xC2
#define PREV  0xC4
#define NEXT  0xC8
#define VOLUP 0xD0
#define VOLDN 0xE0

There are several descriptions of how to build a remote control, linked from the Rockbox documentation page. Look at the "External Pages" section.

http://www.rockbox.org/twiki/bin/view/Main/DocsIndex

[o0smoke0o]

Kick for a long lost topic

Allthough Archos / Rockbox communicate through the serial port at 9600 baud to be compatible with the original remote.

For a specific project I would like to change the baudrate to 38400 baud.
Can this be done by just changing the serial.c ?

Or does this involve somewhat more work ?

Also SoftTX, is there a proper way to test this ? Does it require a cable to the PC with a proper MAX3232 'dongle' ?

[LinusN]

For a specific project I would like to change the baudrate to 38400 baud.
Can this be done by just changing the serial.c ?

Yes.

Also SoftTX, is there a proper way to test this ? Does it require a cable to the PC with a proper MAX3232 'dongle' ?

http://www.rockbox.org/twiki/bin/view/Main/Rs232Converter

[o0smoke0o]

http://www.rockbox.org/twiki/bin/view/Main/Rs232Converter

As the Archos Player only has 1 serial pin. Can I simpy combine TX and RX on the serial pin for the Archos ? (On the PC side TX/RX will be seperate).

Also to communicate with the GnUniLink dongle, on the dongle side only 1 serial pin is available. Just combine TX/RX on the Archos and on the PIC side with the TTL level converter in between ?

[LinusN]

If you want 1-pin bidirectional communication, I don't think the MAX solution would do. Then you would have to do it yourself.