UART connections connect half duplex signals over crossed traces, meaning a host transmits over a TX trace connected to the RX trace of a device.
Steps to reproduce
Observe the schematic design
Search the JP2/JP3 connectors
Observe UART_TX and GPIO14/TXD
Expected result
UART_RX connects with GPIO14/TXD.
UART_TX connects with GPIO15/RXD.
Actual result
UART_RX connects with GPIO15/RXD.
UART_TX connects with GPIO14/TXD.
Workaround
The jumper layout specifies a male header, allowing to cross the connection appropriately using breadboard female wires.
Severity level
This is high priority because we expect most users to use the serial connection extensively.
# Traces to JP2 and JP3 are wrong
## Problem environment
UART connections connect half duplex signals over crossed traces, meaning a host transmits over a TX trace connected to the RX trace of a device.
## Steps to reproduce
1. Observe the schematic design
1. Search the JP2/JP3 connectors
1. Observe UART_TX and GPIO14/TXD
## Expected result
* UART_RX connects with **GPIO14/TXD**.
* **UART_TX** connects with GPIO15/RXD.
## Actual result
* UART_RX connects with GPIO15/RXD.
* **UART_TX** connects with **GPIO14/TXD**.
## Workaround
The jumper layout specifies a male header, allowing to cross the connection appropriately using breadboard female wires.
## Severity level
This is **high priority** because we expect most users to use the serial connection extensively.
Traces to JP2 and JP3 are wrong
Problem environment
UART connections connect half duplex signals over crossed traces, meaning a host transmits over a TX trace connected to the RX trace of a device.
Steps to reproduce
Expected result
Actual result
Workaround
The jumper layout specifies a male header, allowing to cross the connection appropriately using breadboard female wires.
Severity level
This is high priority because we expect most users to use the serial connection extensively.
Resolved in
8e36a89.