Freeplay CM3 --> CM4S

[Lanium]

This thread will record my adventure swaping out a CM3 freeplay with a CM4S that i found.

The benefits of moving from a 3 to a 4 seem to be pretty good:

https://www.reddit.com/r/RetroPie/commen..._worth_it/

https://www.reddit.com/r/raspberry_pi/co...rformance/

I bought a CM4S that i found on ebay.

A straight swap from CM3 to CM4S didn't work. I got a small error about unable to load something. is it running?.  Avoiding the troubleshooting for now, i am imaging a new SD card and will start from a fresh image.

[Lanium]

I am going with the most up to date version of Raspbian: Operating system images (https://www.raspberrypi.com/software/operating-systems/)

Raspberry Pi OS Lite

• Release date: July 4th 2024
  
• System: 64-bit
  
• Kernel version: 6.6
  
• Debian version: 12 (bookworm)
  

and manually install RetroPie using this: Manually Install RetroPie on Raspbian/Raspberry Pi OS (https://retropie.org.uk/docs/Manual-Installation/)

Then plan to customize using this: Manual Instructions - How To Add Freeplay Functionality To Raspbian

[Lanium]

I used the Raspberry Pi Imager and edited the configuration to apply a custom hostname, setup a user / password, configure WiFi, and enable SSH with keys to my raspbian image.

looked over the config.txt and updated with the setttings published here:

https://forum.freeplaytech.com/showthrea...4#pid10384

along with:

core_freq=400

[Lanium]

Upon the first boot, i get a white screen and after a few minutes it shutdown. I believe that this is normal.

I was not able to start it up a second time. I inserted the SD card and looked at the config.txt file and the last few lines were missing:

Code:

# Disable the ACT LED on the Pi Zero.
dtparam=act_led_trigger=none
dtparam=act_led_activelow=on
audio_pwm_mode=2
dtparam=watchdog=on # Enabling watchdog.

Appended them back on and saved the file and after reinserting the SD card, it was able to start back up and the green LED lit up.

[Lanium]

ok, so that didn't work - trying to use the bookworm raspbian image.

I flashed the most up to date freeplay image for the CM3 and it has booted successfully to a prompt. I think that there was an issue with the scripts since i changed the default user from pi.