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Figure 25 The reset switch on the LinkIt Connect 7681 development board
6.3.
Use Log to debug
MT7681 provides features for outputting debug messages to a log on UART. To enable this
feature, set PRINT_FLAG in iot_custom.c to TRUE as follows:
bool PRINT_FLAG
6.3.1.
Using log to debug in Station mode
If MT7681 is in station mode with PRINT_FLAG=TRUE and is connected to a wireless AP defined by
Smart Connection, the following is a typical debug log:
==> Recovery Mode
<== Recovery Mode
(-)
SM=0, Sub=0
SM=1, Sub=0
[WTask]5001
SM=2, Sub=0
SM=3, Sub=0
Request*/
Auth with:ssid = RalinkAP, auth mode = 0, /* target AP's SSID and AuthMode
*/
SM=3, Sub=1
Response*/
SM=4, Sub=0
Request*/
SM=4, Sub=1
*/
[WTask]10005
SM=5, Sub=0
handshake*/
SM=6, Sub=0
[WTask]15006
Got IP:192.168.2.12/* Got IP from target AP*/
[WTask]20009
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
= TRUE;
/* start to running recovery/Calibration image*/
/* end to running recovery/Calibration image*/
/* start to running station image*/
/* Change to "WIFI_STATE_INIT" */
/* Change to "WIFI_STATE_SMTCNT" */
/*--output timer log period to notice system alive--*/
/* Change to "WIFI_STATE_SCAN" */
/* Change to "WIFI_STATE_AUTH", going to send Auth
/* Change to "WIFI_STATE_AUTH" waiting for Auth
/* Change to "WIFI_STATE_ASSOC", going to send Assoc
/* Change to "WIFI_STATE_ASSOC", waiting Assoc Response
/* Change to "WIFI_STATE_4WAY", start to 4 way
/* Change to "WIFI_STATE_CONNED", start to get IP*/
© 2015, 2016 MediaTek Inc.
MediaTek LinkIt™ Connect 7681 Developer's Guide
Page 52 of 65
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