SBORPS Random Fact 10

October 8th, 2010 silverspring

Support for NAND flash IC’s from Hynix has been added to the NAND driver. Specifically, three extra models from 1.8V family:

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  1. ManufacturerID = 0xAD (Hynix)
  2. ChipID = 0×35 (32MB)
  3. ChipID = 0×36 (64MB)
  4. ChipID = 0×39 (128MB)

These are probably used for PSP GO models. The PSP now supports NAND’s from Samsung, Toshiba, ST Micro, and Hynix.

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SBORPS Random Fact 09

October 8th, 2010 silverspring

Been awhile since my last post, been quite busy with other stuff (read ‘real life’). I’ll be posting more stuff from now though.

After searching for any new supported resolutions for the LCD controller I found a strange one (added in 6.xx):

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C:
  1. 720×479 @ 29.97Hz

Don’t know why it is missing one single row from the usual 720×480 resolution.

Here’s the full list of supported resolutions:

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C:
  1. 320×180 @ 119.88Hz VSYNC, 23.376KHz HSYNC
  2.  
  3. 480×272 @  59.83Hz VSYNC, 17.110KHz HSYNC
  4. 480×272 @  59.94Hz VSYNC, 17.142KHz HSYNC (native PSP res)
  5. 480×272 @ 119.65Hz VSYNC, 34.220KHz HSYNC
  6. 480×272 @ 119.88Hz VSYNC, 34.285KHz HSYNC
  7.  
  8. 640×480 @  59.94Hz VSYNC, 31.468KHz HSYNC
  9. 640×480 @  59.94Hz VSYNC, 31.468KHz HSYNC (larger borders)
  10.  
  11. 720×240 @  59.83Hz VSYNC, 15.734KHz HSYNC
  12. 720×240 @  60.05Hz VSYNC, 15.734KHz HSYNC
  13.  
  14. 720×479 @  29.97Hz VSYNC, 15.734KHz HSYNC
  15. 720×480 @  59.83Hz VSYNC, 31.468KHz HSYNC
  16. 720×480 @  59.94Hz VSYNC, 31.468KHz HSYNC
  17.  
  18. 720×505 @  29.97Hz VSYNC, 15.734KHz HSYNC

If you are wondering how the PSP can support resolutions higher than it’s native screen resolution of 480×272, it’s because the LCD controller needs to support PSP devkits as well which have VGA output to connect to an external LCD monitor.

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