Programming Microcontroller Embedded
Flash POD vs. Tester Resources
This block diagram shows an In-Circuit Tester with a fixture that is connecting directly
to the Unit Under Test. The fixture has no unnecessary hardware.

This block diagram shows a programming POD and FrameScan
hardware installed. The POD is used for In-System programming and the FrameScan is used
for a pseudo pin-test because the test engineer did not have the library model to do
vector based test. The relays are added to isolate the programming POD from the Unit Under
Test and keep stray voltages off of the UUT during shorts test and un-powered analog
tests.
