Yes.
- BOARD GND ↔ USB-TTL adapter GND
- BOARD TXD ↔ USB-TTL adapter RX
- BOARD RXD ↔ USB-TTL adapter TX
VCC is optional, you can leave it o disconnected or connected it to 3.3V or 5.0V depends on your USB-TTL adapter.
Please make sure you have setup minicom correctly.
- Choose the correct serial devices, if you only have one USB-TTL adapter, it shuould be
/dev/ttyUSB0 - Setup correct baudrate - 1500000
- Setup no Hardware Flow Control
It shuld be like this:
Welcome to minicom 2.8
OPTI+-----------------------------------------------------------------------+
Port| A - Serial Device : /dev/ttyUSB0 |
| B - Lockfile Location : /var/lock |
Pres| C - Callin Program : |
| D - Callout Program : |
| E - Bps/Par/Bits : 1500000 8N1 |
| F - Hardware Flow Control : No |
| G - Software Flow Control : No |
| H - RS485 Enable : No |
| I - RS485 Rts On Send : No |
| J - RS485 Rts After Send : No |
| K - RS485 Rx During Tx : No |
| L - RS485 Terminate Bus : No |
| M - RS485 Delay Rts Before: 0 |
| N - RS485 Delay Rts After : 0 |
| |
| Change which setting? |
+-----------------------------------------------------------------------+