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Option 3: In-Circuit Test Hardware and C Source Code
When boards are produced in volume, the PCB is typically tested in a pogo-pin-based fixture, or any
other type of bed of nails (In-Circuit Test, ICT) device or flying probe system.
To program the TS8000x in this environment, the PCB will need test points for the following:
V
-
CC
GND
-
DEBUG
-
SMB_SCL
-
SMB_SDA
-
The script that performs the normal device test and validation must be expanded to include the
programming of the firmware image to the target processor. To facilitate this process, Semtech provides
the C source code that performs this function. It is the source of the executable used in the Aardvark-
based programming solution described in the prior section. Please refer to the above section on how to
download and install the archive file
The I2C script is provided as a simple C source code file that needs to be integrated into the automation
equipment software. This method allows for fast programming of the firmware image. The source code is
located in the sub-folder
TS80002_Programming.zip
extracted from the
The test program will need to first ground the DEBUG pin and then apply power to the target board. Once
the bootloader has commenced, the test program can then launch their executable built from the provided
C source code.
Given that the C source code is used in the Aardvark adapter method above, it may be beneficial to
experiment with the Aardvark solution in preparation for adapting the C source to your production line test
equipment.
TS8000x Programming Guide
Rev 0.9
Sep 2016
To power the board
System reference voltage
Must be grounded prior to power-up to initiate bootloader mode
I2C Clock line that paces the data transfer
I2C Data line that programming data travels over
TS80002_Programming.zip
\TS8000x Flashing\TS80002_Programming\fw_flash_Semtech_v1.0\src
file.
www.semtech.com
to your PC to obtain these files.
which was
12 of 16
Semtech
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