Recent content by pseudonym404

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    How To Unbrick Your Wiz (Retail Wiz - V1.1.0 Firmware)

    I've been playing with this again recently, and thought it might be worth mentioning that to send the 16K of UART boot code, you simply need to write one byte at a time at 19200bps (that is, actually write the bytes at about that speed, as well as configure the port for that speed), msleep(4)...
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    Cw24C32 Eeprom?

    Does anyone know anything about the CW24C32 32K I2C EEPROM chip in the Wiz? There doesn't seem to be any reference to it in the GPH kernel source...
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    How To Unbrick Your Wiz (Retail Wiz - V1.1.0 Firmware)

    You could try starting the terminal first (no cat), starting it afterwards might not be quick enough. CKermit has a transmit command that should be able to send the UART boot, don't know about minicom.
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    How To Unbrick Your Wiz (Retail Wiz - V1.1.0 Firmware)

    Sorry, I should have specified ckermit the program, I wouldn't expect uart boot to use the kermit protocol either, maybe xmodem though (which ckermit supports), seems fairly common for arm boards. :) Good to know the Windows utility works in Wine though, I now have a backup plan. ;)
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    How To Unbrick Your Wiz (Retail Wiz - V1.1.0 Firmware)

    Hopefully it's just a case of discovering the correct transfer protocol for sending files, and the menu is implemented as raw serial (pure guesswork). I'm looking for a suitable switch to add to my serial cable now to optionally pull the bootmode pins low so I can play with this. :)
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    How To Unbrick Your Wiz (Retail Wiz - V1.1.0 Firmware)

    Cool, looks like a great method of testing your own uboot builds too. :) I wonder if it's possible to just use kermit in Linux (no Windows here). Might have to play with that idea when I'm done messing with the kernel. ;)
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    Caanoo / WIZ :( Have I Bricked My Wiz?!

    No, still got stock firmware, just playing about with kernel stuff. I'm interested anyway though. :)
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    Caanoo / WIZ :( Have I Bricked My Wiz?!

    I've so far only been loading kernels directly into ram to boot them, like this: mmcinit fatload mmc 0 0x02000000 uImage bootm 0x02000000 You can obviously change the filename (uImage) to load any file, and I think you should be able to substitute an appropriate address for fatload to write to...
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    Caanoo / WIZ :( Have I Bricked My Wiz?!

    If you're still getting the uboot prompt on the serial line, you should still be able to flash new firmware. If you're not, the bootloader is toast... You could have a go at getting JTAG working, although as far as I'm aware nobody has tried it yet. If you're up for that, I'd start with...
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    Caanoo / WIZ Thoughts On Wiz Usb Gadget Interface

    The vfat image on loopback is still really hacky, especially as it wastes ~100Mb of space, admittedly better than vfat directly on the nand though. Pretty sure the way to do this is vfat on ubiblk on ubi.
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    Caanoo / WIZ Thoughts On Wiz Usb Gadget Interface

    The vfat image on loopback is still really hacky, especially as it wastes ~100Mb of space, admittedly better than vfat directly on the nand though. Pretty sure the way to do this is vfat on ubiblk on ubi.
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    Highspeed Timer(Counter)

    I'd love a copy of any documentation going too if it's OK to distribute it. OLED controller and NAND datasheets were easy enough to find, but I can't find any SoC docs. :)
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    Tearing

    The idea is to change the screen mode to it's native 240x320 and use OpenGL to do any necessary rotation. If you have the screen rotated, it'll tear, regardless of how you draw to the framebuffer.
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    Wiz Tv Out

    The problem with upscaling the output on the Wiz to a TV (sharing the same framebuffer as the OLED), is it requires a landscape framebuffer, which requires the OLED controller rotation, which causes the tearing (someone wants slapping for that design decision - the controller datasheet...
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    Stuck & Dead Pixels Help!

    I wonder if the outline is the OLED embedded controller IC (C0283QGLC datasheet says it's a S6E63D6)...
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