DIY Ninjas Section
Contents
CM1 support (how to change power mode)
Compute Module 1 needs 3.3V power for VBAT, and CM3/CM3+ needs 5V VBAT.
By default StereoPi is tuned to provide 5V voltage for CM3 series support.
To change powering mode for CM1 support you need:
1. Unsolder R15 (0 Ohm) resistor here:
2. Solder R17 (0 Ohm) resistor or piece of wire here:
Undeclared feature: usb client mode
You can easily access CM's USB on MicroUSB connector. You need to unplug the power cable, and connect StereoPi's MicroUSB cable to your computer without installing USB SLAVE
jumper. In this case DD4 USB switch will connect CM's USB pins directly to MicroUSB connector. Onboard USB and LAN will be disabled, and you can use usb-gadget API to turn on RNDIS LAN, usb camera or other modes on StereoPi according to your aim.
If you connect StereoPi by MicroUSB cable to your computer AND install USB SLAVE
jumper, you will turn on firmware upload mode. Start rpiboot.exe to make eMMC visible as external drive.
Device tree (DTS and dt-blob.bin)
Ready to use dt-blob.bin file:
Download mirror 1 (Wiki hosting)
Download mirror 2 (website hosting)
DTS source file
Download mirror 1 (Wiki hosting)
Download mirror 2 (website hosting)
Schematic of the StereoPi board
You can find current edition of the KiCad StereoPi schematics here:
https://github.com/realizator/stereopi-kicad-schematic
Here is a list of PDF schematics exported from Altium: