STWBC86 Default Firmware

[eedesignguy]

Hello,

We are designing in this part on a new board and I am trying to find out if the factory vanilla part is shipped with working firmware or not? I have not been able to find any definitive information on this. I would generally expect a part like this to function in a default mode with default settings out of the box (and on the board). Then, if we want to tune the settings, we just connect with STSW-WPSTUDIO and calibrate that way. If this is not the case, we decide how we are going to pre-program the parts.

Thank you in advance,

eedesignguy

[willzhou]

Hi Chris

Default STWBC86 do not have fw, you can use 2 ways to update fw.

1.MCU drive code here 

SW I2C driver on Github

https://github.com/STMicroelectronics/STWirelessCharging-C-Drivers

2.STSW-WPSTUDIO command ways 

GitHub - STwirelesscharger/STSW-WPSTUDIO: ST wireless charge chip tool

@Echo off
REM use tool and command line to down fw to chip
set memh_patch="STSW-WBC86FWBPP\STEVAL-WBC86TX_nvmpatch_1242.memh"
set memh_cfg="STSW-WBC86FWBPP\STEVAL-WBC86TX_config_120D_BPP.memh"
"STSW-WPSTUDIO V2.2.5.exe" fw -d WBC86 -p %memh_patch% -c %memh_cfg%
pause

[eedesignguy]

Thank you for the information. I have two follow-up questions, please:

1. Does ST have a "stock" firmware load that they support for the device? And is their build evolving over time? If so, where is this stock released firmware located.

2. I presume the same situation is true for the STWLC38 receiver? That is, the parts are blank and we need to program them. Do you also have a "stock" firmware load for the STWLC38, and, if so, where is it located?

Thank you,
eedesignguy

[willzhou]

Hi

For STWLC38 it have default fw inside, the firmware is