I am trying to connect to the UART1 and I am getting garbage back. I have an Ixora board + Apalis iMX8 QM processor. My 10Pin IDC uses the DTK/INTEL standard, and i have it connected to a USB to RS232 DCE adapter. I have putty setup to connect to the Com3 with 115200 baud 8bit 1 stop, no parity or flow control. I assume the USB to RS232 pin-out is not right. The USB->rs232 is
- DCD I
- RXD I
- TXD O
- DTR O
- GND
- DSR I
- RTS O
- CTS 1
- RI 1
UART1 Documentation for X22 is
- UART1_RS232_DCD
- UART1_RS232_DSR
- UART1_RS232_RXD
- UART1_RS232_RTS
- UART1_RS232_TXD
- UART1_RS232_CTS
- UART1_RS232_DTR
- UART1_RS232_RI
- GND
Is this how it should align?
-----BOARD---------------RS232/USB adapter
1 UART1_RS232_DCD → 5. GND
2 UART1_RS232_DSR → 6. DSR I
3 UART1_RS232_RXD → 3. TXD O
4 UART1_RS232_RTS → 4. DTR O
5 UART1_RS232_TXD → 2. RXD I
6 UART1_RS232_CTS → 1. DCD I
7 UART1_RS232_DTR → 7. RTS O
8 UART1_RS232_RI → 9. RI I
9 GND → 8. CTS I
These are the 2 items I bought.