From 136c76a387e826653357fd8f9085310bbd42f9e6 Mon Sep 17 00:00:00 2001 From: Maxim Devaev Date: Sat, 16 Apr 2022 00:02:22 +0300 Subject: [PATCH] fixed #636: jumpers explanation --- docs/v3.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/docs/v3.md b/docs/v3.md index b3bbfd0b..17a5c28e 100644 --- a/docs/v3.md +++ b/docs/v3.md @@ -144,19 +144,19 @@ To manage the power of your computer, you will need to install an ATX adapter bo 1. **ATX controller** interface (power on/off, reboot control, PWR and HDD ACT LEDs). - 2. **HDMI reset** jumper. + 2. **HDMI reset** jumper. Connects GPIO 17 and RESET pin to HDMI capture chip. Currently not used, don't touch it. 3. **SPI and GPIO** for the custom extension boards. - 4. **Audio capture** jumpers. + 4. **Audio capture** jumpers. Connects I2S pins 18, 19, 20 to HDMI capture chip. 5. **UART access** pins. 6. **Serial console port** (default: /dev/ttyAMA0, RS232 input, outputs +6V/-6V, for the Raspberry Pi or server console access). 7. **USB-C console port** (shared with #6 above, takes priority over RJ45). - 8. **Power** and **activity LEDs**. + 8. **Power** and **activity LEDs**. On the left of the LEDs the watchdog jumper is located. Don't touch it. 9. **USB-C power input**. 10. **I2C display connector**. 11. **Alternate +5V power input/output** header pins. 12. **RTC clock** supercapacitor (rechargeable). 13. **FAN connector** - PWM controlled. - 14. **CSI-2 interface** and **HDMI backpowering** jumper. + 14. **CSI-2 interface** and **HDMI backpowering** jumper, see [Step 8 of the Basic Setup](#basic-setup). Open: diode will stop current from HDMI input (backpower will be fixed), closed: will allow current from HDMI device. 15. Built-in **power splitter** port. 16. **HDMI capture port** (max 1080p @ 50Hz) with **sound capture** support. 17. **USB emulation pins** for alternative access.