comfilepi:aboutserialport:index
Table of Contents
ComfilePi's Serial Port
CPi-A/B/S
| Kind | Internal Name | Alias | ComfilePi's Name | |
|---|---|---|---|---|
| UART0 | UART | ttyAMA0 | /dev/serial0 | COM0 RS232C |
| UART1 | mini UART | ttyS0 | /dev/serial1 | COM1 RS485 |
CPi-C
| Kind | Internal Name | Alias | ComfilePi's Name | |
|---|---|---|---|---|
| UART0 | UART | ttyAMA0 | /dev/serial0 | COM0 RS232C |
| UART1 | UART | ttyAMA1 | /dev/serial1 | COM1 RS485 |
COM0 Test
The ComfilePi OS has test program.
Connect RX and TX to form a loopback.
Select and run the test as shown below.
“PASS” means it is OK.
COM1 Test
COM1 is an RS-485 port. Use a CN-RS232485 convertor for the COM1 Test.
Use the “Serial Echo Test” instead of COM1 Loopback Test. The Echo Test sends some data from COM0 to COM1 and from COM1 to COM0 and verifies that the data received matches the data that was sent.
comfilepi/aboutserialport/index.txt · Last modified: 2023/07/28 10:47 by COMFILE Technology