Tool/software: Code Composer Studio
Hey guys,
we use the tida 00489 board in our sensor design. We noticed, that some of our sensors stop working after soldering in the battery (we use a different battery type) and molding the board with PU mold.
Regarding the manufacturing process, we flash the board and perform a functioning test, during the test the board is powered externally via the JTAG connection. Afterwards, the battery is soldered onto the board, placed into a housing and molded.
We noticed, that after this process some of the sensors did not work anymore, whereas the others worked as expected. After breaking of the housing and manually resetting the sensor, it worked fine again. Since we do not have the possibility to restart the sensor (we do not have an on/off button) the sensor can only be restarted by irreversibly breaking up the system. Thus we were wondering if any experience reports are available or if you have any idea how to handle this. Since the device is completely encapsulated, we cannot debug it since we cannot attach anything and the wireless transmission is, as mentioned before, not working anymore.
Could there be a misfunctioning of the RF module due to overheating during soldering?
We somehow think that either the soldering or the encapsulating is the reason, though the latter one is performed at rather lower temperatures around room temp.
Hope you guys can help us out once more. Dont hesitate if you need further info.
Best wishes
Slev1n