Serial to USB Net Yaroze

The objective of this tutorial is to connect the Playstation or Net Yaroze to your PC using the "Serial To USB Net Yaroze".
It replaces the original communication cable "DTL-H3050"

1 - Prerequisites

- A Playstation or Net Yaroze that has the ability to play CD-Rs (ModChip, Swap or Action Replay)
- CD "Net Yaroze boot disc" DTL-S3035 Cracked
- CD "Net Yaroze software development disc" DTL-S3045
- An adapter "Serial to USB Net Yaroze"
- An PlayStation Link cable ou china clone
- DosBox software
- DosBox patch 5n1

PS: if you have the original Net Yaroze boot CD + Net Yaroze + Access Card, you do not need the Cracked CD, no need to have a console that reads the CD-Rs either because you have the original

Serail to USB Net Yaroze

2 - Connection

Connect your PS1 to your PC with the "Serial to USB Net Yaroze" as follows:

Connect your Net Yaroze to your PC with the Serial to USB Net Yaroze

3 - PC Configuration

At first we will connect the "Serial to USB Net Yaroze" to the PC via a USB cable. Windows will detect it and install the drivers automatically. Once completed, we must go to identify the number of the Com port assigned by Windows. For that we will go in:

>>Start -> control panel -> Device Manager

We go down the list and there should be the "Serial to Usb Net Yaroze" visible as a COM port with in parentheses the port number assigned. Note it, it will be useful for the next step. Now we'll unzip the "Net Yaroze Yaroze software development disc" archive on your hard disc at the following location :


We will now install "DosBox".
As a reminder this small utility allows us to launch Dos applications on our recent systems. It has a very interesting function that allows us to return a real serial port in its emulated system. We install DoxBox. To apply the DosBox patch, copy the "dosbox.exe" and "SDL.dll" files found in the "dosbox-0-74-5n1patch" archive into your DosBox installation folder, by default "C: / Program Files (X86) /DosBox-0.74/ ":

Installation DosBox patch 5N1 serial port

Then we will configure DosBox to map the "Serial to USB Net Yaroze" and give it its operating speed (9600 Bps at first). We will go to the DosBox installation folder (default C: / Program Files (X86) /DosBox-0.74/) and we will run "DOSBOX 0.74 Options.bat:
Configuration of DosBox

Here we are in the presence of the DosBox configuration file opened with your favorite text editor. Modify the "Serial" section as below and replace the "X" with the number of your previously recovered COM port:

serial1=directserial realport:COMX

Configuration serial DosBox COM

Then modify the "autoexec" section as below:

# Lines in this section will be run at startup.
# You can put your MOUNT lines here.
mount c: c:\net-yaroze-sdk

Configuration Autoexec DosBox

4 - Power ON

Insert the "Net Yaroze Boot Disc" CD (cracker if you do not have the access card in slot 1 of your PS1 / Net Yaroze). Turn on your PS1 / Net Yaroze. You must have the following image on your screen:

Boot screen with DTL-S3034 CD Boot disc

CIP Version 2.0 Startup
Access Card Checking...OK
Memory card Checking...Not found
Terminal Speed 9600 BPS

Access Card Checking...OK : Cracked CD, No need Access card.
Memory card Checking...Not found : the program of the "Net Yaroze CD boot disc" check if a memory card has been inserted in slot 2 and if a backup configuration is available inside them.
Terminal Speed 9600 BPS: see "chapter 6 : Communication speed" to increase the transmission speed.
Your PS1 / Net Yaroze is now ready to receive code via its serial I / O.

5 - Hello World

We move on to serious things, we will now execute code. To do this we will use the program "SIOCONS" translate "Serial Input Output CoNnectionS ».
Start DosBox and type the following commands:

siocons batch0

ou should have the screen of your Net Yaroze / PS1 which will have evolved to confirm the good reception and storage of the program, followed by the execution of the code:

Launch Hello World program Net Yaroze

n the folder C: \ PSX \ on DosBox, you have several small test programs available, I let you discover them by navigating in your directories and executing the command "siocons auto"

6 - Communication speed

You are currently at a default speed of 9600bps, your Net Yaroze / PS1 has the capacity to mount at 115200bps and your "Serial to USB Net Yaroze" too! We will increase the transmission speed to 115200bps

Turn on your Net Yaroze / PS1 with the "Net Yaroze boot disc" CD and a memory card insert into slot 2.

Screen Boot DTL-S3035

It is normal for the message "Memory Card CHECKING...Not Found" appear.
Now run "DosBox" and type the following command:


Wait 2 sec and press the "Enter" key on your keyboard to regain control of the prompt "siocons".
Type the following command and validated by "Enter":

BAUD 115200

Your Net Yaroze or PlayStation is now at 115200 Bps, but your DosBox is still at 9600Bps Now press the "F10" and "F2" keys on your keyboard to recover the "DOS" prompt.
Now we will restart "Siocons" with an additional argument, for that type the following command:

siocons -B115200

After a few seconds, siocons asks you the following:
"Save the new baud rate into the memory card ? ( y/n )"
Answer "y" with your keyboard.
"Siocons" will answer you "Completed".
Set 115200 baud siocons Net Yaroze

"Siocons" has just confirmed the writing of the configutation speed to 115200 bps (Baud Rate) in the memory card slot 2 of your Net Yaroze or PlayStation
Make a reset on your playstation. It now shows you the following screen:

CIP Version 2.0 Startup
Access Card Checking...OK
Memory card Checking...OK
Terminal Speed 115200 BPS

Net Yaroze Start with memory card found in slot 2

We still have to configure the transmission speed PC-side on DoxBox.
To do this, close dosbox and edit the file "DJSETUP.BAT" which must be here :

Edit DJSETUP Sdk Net Yaroze

In line 4, you must have:

set DTLH3000=0x3f8,4,9600

Replace 9600 by 115200, now you must have :

set DTLH3000=0x3f8,4,115200

Save and relaunch DosBox.
Your PlayStation and DosBox are now set to the maximum transmission rate of 115200 bps.