Poorman's Usbloader

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Type 79
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Poorman's Usbloader

Post by Type 79 » July 30th, 2013, 8:32 am

Image

Hardware: Software: Rom created from ROMProd & PSXPAL.EXE. PSXSERIAL V1.0 is too big to fit in 128KB cartridge.
For uploading I use PSXSERIAL.

Instaboot, power on PlayStation and it's ready to receive.
Windows 8/7 compatible, just plug-in usb and check COMport-number from Device Manager.

Requirements:
  • - PlayStation with Parallel I/O port (SCPH-100x - SCPH-750x)
    - For flashing: Someway to boot from X-Flash cd (modchip, swaptrick, cart with cdstop (Ahoy! 0.34))

Code: Select all

                     Serial Port PSX
                   +-----------------+  
Par.Port ------>   | 1 2 3 4 5 6 7 8 |   ------> Cinch, MultiAV,...
                   +-----------------+   
                  (back of Playstation)    
                                                               
                                                               
  PSX               ConvMod                  CH340
  2 GND|----------|BGND  AGND|-------------|GND
  8 RXD|----------|BRXD  ARXD|-------------|TXD
  5 TXD|----------|BTXD  ATXD|-------------|RXD
                +-|BVCC  AVCC|-------------|VCC5.0V
                +--------------------------|VCC3.3V
Image
Last edited by Type 79 on August 8th, 2013, 1:33 am, edited 2 times in total.

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LameGuy64
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Motto: Commercial or not, play it!
PlayStation Model: H2000/7000
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Post by LameGuy64 » July 31st, 2013, 1:26 am

I wonder if 0-5 volts logic is safe for the PSX because I happen to have a CH340 clone (disguised as a USB-RS232 cable) which outputs 0-5 volts logic.
Please don't forget to include my name if you share my work around. Credit where it is due.

Dev. Console: SCPH-7000 with SCPH-7501 ROM, MM3, PAL color fix, Direct AV ports, DB-9 port for Serial I/O, and a Xplorer FX with Caetla 0.35.

DTL-H2000 PC: Dell Optiplex GX110, Windows 98SE & Windows XP, Pentium III 933MHz, 384MB SDRAM, ATI Radeon 7000 VE 64MB, Soundblaster Audigy, 40GB Seagate HDD, Hitachi Lite-on CD-RW Drive, ZIP 250 and 3.5" Floppy.

Type 79
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Post by Type 79 » July 31st, 2013, 2:30 am

Well, no smoke so far, but maybe I should add something like this in.
http://www.ebay.com/itm/Logic-Level-Con ... 1097840293

Type 79
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Post by Type 79 » August 8th, 2013, 1:23 am

First post updated.
- Level Conversion Module.

ToDo:
Internalize, say no to linkcable butchering.

danhans42
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Post by danhans42 » August 8th, 2013, 5:47 am

You can also do this with a 74HC244, with no extra components.. If you are just using HITSERIAL just wire up txd/rxd gnd and +3.3v.. they cost around £0.50 each..
psone_usb_sche.gif
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Post by Arnold101 » December 22nd, 2019, 2:41 pm

danhans42 wrote: August 8th, 2013, 5:47 am You can also do this with a 74HC244, with no extra components.. If you are just using HITSERIAL just wire up txd/rxd gnd and +3.3v.. they cost around £0.50 each..

psone_usb_sche.gif
do i need a ch340 or a FTDI FT232bm? im a bit confused, are the same or not?

danhans42
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Post by danhans42 » January 2nd, 2020, 10:55 pm

Either! You just need a +3.3v UART. They both do the same thing..

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