I tried to login to compute module 3 io board from a USB serial port in my PC, but PUTTY just hangs there.
Following procedures have been made:
raspi-config
-> interface options -> serial port -> say yes to login shell over serial.- Reboot CM3.
- Installed driver for USB serial connector on my PC.
- Connect RX line (white) to GPIO 14 (UART0 TX), TX line (green) to GPIO 15 (UART0 RX), ground line (black) to a nearby GND pin. For the 3.3v line (red), I tried either connect it to GPIO27 or just hang it. The meaning of pins are referred from Compute Module IO Pins
- Open
PUTTY
in my PC, connect to COM3 with 115200 baud rate.
After all these works, PUTTY just show me a flashing cursor. It neither show command prompt, nor respond to my keyboard.