it seems, that if one burns the
AirM2M_Luat_V0011_W600T_USER.FLS Firmware as described in the Wiki, it is impossible to use the LuaTool
for that module again. I tried with several pieces of the
Air602-Module. The burning process succeeds. After that, the module works as it should, except for the serial communication.
If I then try to load another Firmware (or the same again), the process stops after a few seconds.(Yes, I repeated step 5 many many times…)
The problem seems to be with the serial communication. Before upgrading I connected with
picocom from Linux and with putty
from Windows. Everything was fine. Now I can only connect from the command line:
echo -e ‘at+’ >/dev/ttyUSB0
I then catch the output from another console with
cat < /dev/ttyUSB0
It seems that the module now needs a CR (0D) just after the AT-command. I.e.
echo -ne ‘at+’ >/dev/ttyUSB0 fails but
echo -ne ‘at+\r’ >/dev/ttyUSB0 does not.
I couldn’t find out where to configure
picocom or putty to put in the CR for me. And I believe that the problem with the LuaTool has the same reason.
AirM2M_Luat_V0010_W600T_USER.img, which I tried first, worked as it should - but know I can’t go back again
Sorry for the late reply.
If your air602 still can accept AT command , please follow the instruction below.
Send the command via serial tool below to enter the flash write mode:
Step 2. Close the serial port in the serial tool, then use the Luat_Tool to download the AirM2M_Luat_V0010_W600T_USER.FLS(maybe you shuould download it twice)
Now you can use the firmware V08 or V09 or V10.
If your air602 can not accept AT command , you should pull pin PA0(GPIO13) to ground before you power this module.
Then you can use Luat_Tool to download the
AirM2M_Luat_V0010_W600T_USER.FLS(maybe you shuould download it twice)
You can find the
<LINK_TEXT text=“https://github.com/SeeedDocument/Air602 … 02_img.zip”>https://github.com/SeeedDocument/Air602_WiFi_Module/raw/master/res/Air602_img.zip</LINK_TEXT>
thank you for your reply!
I followed step 1. and 2. and now I can download the firmware again.
But… the module stays in download mode, sending ASCII “C” and ignoring any AT commands.
When I press the reset button the output changes to “Q” for a short period, then it sends “C” again.
it stops sending “C” but still doesn’t respond to AT commands.
How can I leave the download mode?
Are there other
commands? The official document only describes AT+…
commands without ampersand :idea: