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Poorman's Usbloader

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

Re: Poorman's Usbloader

Posted: July 31st, 2013, 1:26 am
by LameGuy64
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.

Re: Poorman's Usbloader

Posted: July 31st, 2013, 2:30 am
by Type 79
Well, no smoke so far, but maybe I should add something like this in.
http://www.ebay.com/itm/Logic-Level-Con ... 1097840293

Re: Poorman's Usbloader

Posted: August 8th, 2013, 1:23 am
by Type 79
First post updated.
- Level Conversion Module.

ToDo:
Internalize, say no to linkcable butchering.

Re: Poorman's Usbloader

Posted: August 8th, 2013, 5:47 am
by danhans42
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

Re: Poorman's Usbloader

Posted: December 22nd, 2019, 2:41 pm
by Arnold101
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?

Re: Poorman's Usbloader

Posted: January 2nd, 2020, 10:55 pm
by danhans42
Either! You just need a +3.3v UART. They both do the same thing..