MCI 730 root access and information

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06-05-2012, 09:02 AM
Alex Samorukov

MCI 730 root access and information
Hi,

I was able to root my device to play with it. Some interesting findings:
- WIFI instability problem is related to buggy driver.
- I was able to compile and run mplayer on the box to support all popular formats (e.g. APE, FLAC and WAVPACK) on the player. Unfortunately it is currently running without GUI, from telnet
- It is possible to record from FM tuner on 48000 Stereo format. It also should be possible to stream active station to the network.
- CPU is running 150Mhz and could scale up to 300Mhz (but i never tried it, could be very unsafe).
- Most of the hardware connected to SPI and I2C buses, without any references on how to use it.
- Box software is something from mediabolic.
- Touchscreen, framebuffer and
- No IPv6 in the kernel, module loading is also not possible because it was disabled on compilation time. Only way to get IPv6 is to replace kernel in the Flash.
- Internal flash memory size is 24Mb, only part of it is available to rootfs.
- USB plug is a standard USB 2.0.
- Kernel has NFS support, I was able to mount my NAS using NFS.
- There is a Serial Console running with 115200 8n1, i found connector but had no chance to try it (my 3.3V/5V serial adapter is broken now).
If you found this interesting - join my blog - http://smallhacks.wordpress.com/.
06-20-2012, 04:12 PM
macmpi

That's great news indeed!
I don't know about an opensource project putting together complete software stack for similar product category...is there any?
06-20-2012, 04:27 PM
Alex Samorukov

Quote:

Originally Posted by macmpi

I don't know about an opensource project putting together complete software stack for similar product category...is there any?

I know software player on LUA from Logitech exists. But AFAIK it is not uPNP/dLNA compatible and probably will require a lot of customizations to work with Philips. For now my plan is not so ambitious - addition to the embedded software should be enough. I already able to play audio and draw on frame-buffer, but currently I am not able to control embedded mixer (I2C) and FM/CD. Also self-compiled kernel failed to load and now i have no enough time to work on this. May be later, after i will find some time to connect to the device with 3.3V serial console.

BTW, there is a Perl SDL binding. I think that this could help in building alternate interface. But i am still lack of time and knowledge to work with all embedded hardware, so volunteers are wanted.