Control XMPCR/XMDirect with iPad?

**freeflashstuff** · 01-26-2011, 06:26 PM

Originally Posted by freeflashstuff

I guess my mac is too old to do anything with that code. I try to open it and it tells me arch is invalid = ppc valid_arch = i386...

Can someone just port that code to iPhone/iPad? I have no idea where to even start...
The serial port is

Code:

 /dev/tty.iap

and the serial stuff is here at the source code example:
http://devdot.wikispaces.com/Iphone+...+Port+Tutorial

I still need to see about the test points coming from the XM "can". They are TTL out, and the iPads connector is TTL in, so if I can bypass the FTDI chip, it would be a lot easier.

**freeflashstuff** · 01-30-2011, 05:58 PM

Thanks to Colecago over at the Hackaday forums, I have some more info. I'm ordering a breakout board as soon as I can get the money together. This one (eBay item # 370467683410) or one similar so I don't risk messing things up because I suck at soldering...

The iPad and the "can" on the XMPCR are both TTL level, so no extra chips are needed. I also found a pinout of the "can" and it should make things a lot easier. Still need help on the program end, though. I'm just gonna copy/paste from the HaD forum thread in my next post...

Thread here.

**freeflashstuff** · 01-30-2011, 06:29 PM

Copy/Paste from HaD forum:

I found a pinout of the "can"! This should make things easier...

Now I'll just need to figure out the charging circuit for the iPad to charge WITHOUT the God-forsaken "Not charging" or "Charging is not supported by this accessory" messages, find my soldering iron and get a dock connector breakout board. Which one should I get?

1-GND
2-5V
3-5V
4-GND
5-5V
6-MLCK
7-LRCLK
8-SDATA
9-SCLK
10-Turn on indication (This pin is high when the metal can is turned on, it drives an LED)
11-N/C
12-N/c
13-N/C
14-Turn on signal or enable signal. I believe when this is high, it's
turned on.
15-TX
16-RX
17-GND
18-N/C
19-N/C
20-N/C
21-N/C
22-GND
23-TER - ANT
24-GND
25-Some sort of output. Labeled TP13 on XMPCR.
26-GND
27-5V
28-GND
29-SAT - ANT
30-GND

**Bugbyte** · 01-31-2011, 07:26 AM

I found an XCode version of XM for the Mac. The guy that did Neon Boom Box took the java code and turned it into objective C. The code is attached.

Here's hoping you can get this to work!

**freeflashstuff** · 01-31-2011, 09:06 AM

...same problem as before. the code is Intel only and I have a PPC Mac...

**freeflashstuff** · 02-02-2011, 11:20 AM

I may have a small problem... The XM can is definitely 5V. So I have to take the. 3.3V to get 5V somehow. The iPad has a USB dongle and USB is 5V so maybe I can find that pin once I get my breakout board...

Sent from my iPad using Tapatalk

**Bugbyte** · 02-02-2011, 02:18 PM

Originally Posted by freeflashstuff

...same problem as before. the code is Intel only and I have a PPC Mac...

Are you opening it in XCode? It's not compiled.

**freeflashstuff** · 02-02-2011, 05:08 PM

Yeah. I'm using Xcode but it throws an error when I open the file

Sent from my iPad using Tapatalk

**Bugbyte** · 02-03-2011, 07:46 AM

Doesn't throw an error on my PPC XCode. I've got Version 3.0 with XCode IDE 921.0, XCode core 921.0 and toolSupport 893. Check your About XCode box to see if you have the same.

**Ryan711** · 02-03-2011, 02:51 PM

Wouldn't it be easier and more beneficial in the long run to connect the device to an external device like the sheevaplug and have it stream to the ipad?