Test Point Matrix

In order to create a custom Pogo-Pin Cassette for the printed circuit board of a Device Under Test (DUT), a Test Point Matrix (TPM) should be established, to specify how the PLT-300A test probe and signal rails should be connected to the test points in the cassette.

Test Point Matrix (TPM)

A Test Point Matrix (TPM) is an .XLSX file (Template: .xlsx template) that can be constructed by specifying

Acceptance criteria
Connected PLT probe signals
Connected PLT power signals

for each of the test points in the Test Point List, ensuring that the tests described in the In-circuit Test Plan can be performed with a PLT.

Additional Test Fixture components required in the test fixture should also be identified in the Test Point Matrix (TPM):

Barcode scanners and printers
HW programmers
USB hubs
SBCs
UART, CAN, USB, Ethernet connections

See also

Sample PLT-300A Test Point Matrix
Test Point	PLT-300A Test Probe and Signal Rails	DUT Net name	Notes
TP1	GND1	AGND
TP2	GND2	GND
TP3	GND3	GND
TP4	3V3OUT; DATP03	VCC
TP5	SWD_NRST	nRST
TP6	SWD_SWDIO	SWDIO
TP7	SWD_SWCLK	SWCLK
TP8	DATP00	BAT_SENSE
TP9	UART0_TXD	MCU_RxD	Add opto-coupler
TP10	UART0_RXD	MCU_TxD	Add opto-coupler
TP11	DDTP02	BOOT0
TP12	DDTP03	BOOT1
TP13	RATP00	GPIO26_ADC0
TP14	RATP01	GPIO27_ADC1
TP15	RATP02	GPIO28_ADC2
TP16	UART1_TXD	RF_TX
TP17	UART1_RXD	RF_RX
TP18	nc	ANT
	DDTP00		ICT Fixture clamp-down detect
	DDTP02		Control opto-coupler for MCU_RxD; MCU_TxD
	nc
	nc

Downloads

PLT-300A PPC Test Point Matrix template (.xlsx)