Questions tagged [uart]
The uart tag has no summary.
57 questions
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Performance and Data Loss Issues with MSI on AXI UART16550
I am experiencing significant performance and data loss issue with the AXI UART16550 on our Xilinx FPGA. Initially, the device operated without any problems using legacy interrupts. However, after ...
1 vote
1 answer
262 views
Writing additional kernel layer on UART driver
I want to take leverage the existing kernel API/module to create packet layer abstraction for user space application to transfer "packets" via UART interface. So, the intention is a kernel ...
- 11
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1 answer
200 views
How to get root-Access and/or update/extract firmware via UART
I would like to try to equip my non-specific China-Wall-Brick-WiFi-Router with root access and update it if necessary. Here is a sample image of the device: The problem is: The device has no official ...
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1 answer
2k views
Armbian enable UART2 for TX/RX
I'm trying to use the UART1 and UART2 of my device (a NanoPi NEO) to read serial data. So far, UART1 i fully functionnal and I can read and transmit data through /dev/ttyS1. I've enabled UART2 using ...
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99 views
Why is the serial communication with this device failing?
I have two serial to USB adapters connected to my computer, each one is connected to a microcontroller. What I want to do is send commands to each microcontroller through UART (I'm using minicom), but ...
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1 answer
887 views
How to make use of an M2 PCIe card UART interface?
I have a motherboard (AIMB-218) with an M2 E key slot and according to the documentation of the said motherboard the M2 slot supports UART. I am trying to use a wireless module (Wi-Fi + Bluetooth), ...
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1k views
Minicom: send string when newline is detected
I have 3 different USB-to-UART FTDI cables and use minicom to debug some device. My problem is only one of these cables can buffer characters until I send a newline. Eg when I type the string "...
- 101
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506 views
Trouble finding on-board serial port via UART: "-bash: echo: write error: Input/output error"
I have an old tv box that I wiped recently with Linux. I would like to connect a device to its onboard UART pins, to which I've soldered wires that connect to a UART adapter on my PC. I opened up a ...
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