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Wiki > Main > InsideMPIOHD300

Inside the MPIO HD300

HD300_1.jpg HD300_2.jpg HD300_3.jpg

Firmware upgrade

To upgrade the firmware from a Linux box (or from a windows box for that matter), download the .zip file from the mpio website and copy all of the extracted files into the "SYSTEM" directory on your player. Disconnect the player and turn the power on with the AC adapter plugged in. It will go through its upgrade routine and then shut off. Turn the power on again and it will do the upgrade routine once more. The third time you turn it on, you should see the new version number on the splash screen and the player should be good to go! - source, official site information with screenshots for Windows

Docs

Here is the documentation for the IC's used: Source

Official links

Disassembly pics

Taken from the above site, I hope they are correct and useful

Rockbox port feasibility study

Many (if not all) drivers are written already and needs to be only slightly tweaked:
  1. CPU fully supported (irivers, iaudios, mpio hd200)
  2. Disk access routines as in HD200
  3. LCD routines as in Iaudio M5
  4. Backlight as in HD200
  5. Battery charging as in HD200
  6. Battery reading (aka ADC) as in HD200
  7. I2C? uses standard coldfire module
  8. I2S? uses standard coldfire module
  9. Codec as in HD200
  10. Keys use mix of synaptic MEP touchstrip and hardware buttons (GPIOs)
  11. USB bridge as in HD200
  12. RTC can use code from rtc_s35390a.c (maybe slightly tweaked)
There are probably some differences in GPIOs assignment compared to HD200.

OF disassembly discoveries

Key handling

GPIO56 - PLAY (active high) GPIO41 - MENU (active low) GPIO45 - ENTER (active low) GPIO51 - HOLD (active low)

ADC1 readouts: NEXT - 250-450 PREV - 600-800 REC - 950-1150

GPIO6 and GPIO7 are used to communicate with synaptics module. The module behaves as rotary encoder.

The 8 pin ZIF connector used to connect Synaptics module has pinout as follows:
  1. VDD_IO
  2. GPIO6
  3. GPIO7
  4. GPI41
  5. GPIO45
  6. GPIO31
  7. GND
  8. GND

GPI36 - /INT1 of s35380a RTC (used by OF as alarm) GPI37 - /INT2 of s35380a RTC (used by OF as FM alarm)

The 20 pin unpopulated ZIF connector is BDM interface with pinout as described for HD200 with the exception it is MIRRORED.

I Attachment Action Size Date Who Comment
1.jpgjpg 1.jpg manage 26.2 K 02 Apr 2006 - 20:33 MarkKalmanczhelyi Disassembly pic #1
10.jpgjpg 10.jpg manage 97.7 K 02 Apr 2006 - 20:48 MarkKalmanczhelyi Disassembly pic #10
11.jpgjpg 11.jpg manage 87.5 K 02 Apr 2006 - 20:50 MarkKalmanczhelyi Disassembly pic #11
2.jpgjpg 2.jpg manage 19.5 K 02 Apr 2006 - 20:33 MarkKalmanczhelyi Disassembly pic #2
3.jpgjpg 3.jpg manage 27.6 K 02 Apr 2006 - 20:34 MarkKalmanczhelyi Disassembly pic #3
4.jpgjpg 4.jpg manage 32.6 K 02 Apr 2006 - 20:35 MarkKalmanczhelyi Disassembly pic #4
5.jpgjpg 5.jpg manage 82.2 K 02 Apr 2006 - 20:35 MarkKalmanczhelyi Disassembly pic #5
6.jpgjpg 6.jpg manage 97.5 K 02 Apr 2006 - 20:36 MarkKalmanczhelyi Disassembly pic #6
7.jpgjpg 7.jpg manage 40.6 K 02 Apr 2006 - 20:37 MarkKalmanczhelyi Disassembly pic #7
8.jpgjpg 8.jpg manage 88.6 K 02 Apr 2006 - 20:38 MarkKalmanczhelyi Disassembly pic #8
9.jpgjpg 9.jpg manage 71.9 K 02 Apr 2006 - 20:38 MarkKalmanczhelyi Disassembly pic #9
HD300_1.jpgjpg HD300_1.jpg manage 29.7 K 08 Dec 2010 - 13:14 MarcinBukat  
HD300_2.jpgjpg HD300_2.jpg manage 23.4 K 08 Dec 2010 - 13:15 MarcinBukat  
HD300_3.jpgjpg HD300_3.jpg manage 27.5 K 08 Dec 2010 - 13:15 MarcinBukat  
hd300_pcb_back.JPGJPG hd300_pcb_back.JPG manage 1280.9 K 17 Sep 2010 - 21:17 MarcinBukat HD300 PCB back
hd300_pcb_front.JPGJPG hd300_pcb_front.JPG manage 1275.1 K 17 Sep 2010 - 21:15 MarcinBukat HD300 PCB front
r12 - 08 Dec 2010 - 13:21:56 - MarcinBukat
Copyright by the contributing authors.