![]() ![]() I can't imagine why Pioneer claims they can't get button labels going on the HD Radio, since I'd guess they control the I/C and are reading at least frequency numbers (if not ASCII strings) across the UART from the uCOM when it talks to the GEX-P10HD over IP Bus. ![]() The uCOM talks to the audio/video switch control (AV Selector, I4171) using I2C.įor more info on the pinout of the IP Bus, check out. It also has most of the reset flow, from power on to the uCOM releasing reset to the Navi board.Looks like most of the audio work is handled by the System uCOM IC, which the Titan ARM CPU talks to using UART #2. It doesn't have the schematic for the Navi itself, but it does show some interesting places where you can tap off the I/O to trace what's going on when switching sources, adjusting volume, etc. However, I have a feeling that everything is going to be a proprietary stripped down bare bones design that has been custom tailored for Pioneer.Not sure how much it will apply to the F700BT, but the has a lot of information about the AV board and its connections to the Navi unit. Before I put the unit in the car, I think I'm going to take a peek inside it to see if I can find any alternate I/O access points for the unit. That would be a better development path rather than starting fresh with nothing, and a high risk of bricking your unit.ĪctiveSync Remote would be far easier so you could just connect up a USB cable to the radio from a laptop, then remote into it. ![]() I've looked at what leetcoder has been doing with the leetlauncher software he's developing for the unit, and it seems on a good track to use what we already have available to us in the current Windows operating system that is already loaded on the unit with the drivers and libraries already on it. You'd have to know hardware addresses and so forth of everything in the unit to even be able to have drivers for a new OS.Regardless, this unit does look very promising for the modding community. ![]() Just because you might have the possibility to load a new operating system on it doesn't necessarily mean you'll be able to have full functionality of the unit. It could even be a special bootloader via USB like the method you use to reflash windows mobile based cell phones.The thing about the unit running Windows CE, it's all a pre-compiled or 'pre-built' operating system that has special drivers and libraries that Pioneer has tailored for that unit alone. ![]()
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