9.8 Debug
Table 10. Debug/RS232 Interface Lines
| Pin Number |
Name |
Type |
Description |
| 26 |
WLAN RS232 RX |
I |
WLAN debug interface |
| 27 |
WLAN RS232 TX |
O |
WLAN debug interface |
| 42 |
WL_UART_DBG |
O |
WLAN FW logger |
| 43 |
BT_UART_DBG |
O |
BT FW logger |
For bring up and evaluation of the module, the following should be connected:
- Pin out GPIO1 and GPIO2 for WLAN RS232 interface to enable RTTT tool for controlling RF test in the absence of a host.
- There is a need to pull up WL_IRQ (10k pull up) at power-on to enable this RS232 UART interface.
- WLAN logger must have at least a TP to allow Wi-Fi Firmware logs to be captured by gLogger. Requires a 1.8 V LVCMOS to USB cable for capture.
- Bluetooth logger must have at least a TP to allow Bluetooth Firmware logs to be captured by gLogger. Requires a 1.8 V LVCMOS to USB cable for capture.
- WLAN RS232 lines - Check transmission on Rx/Tx line, for every packet on Rx should be a response in Tx.