JAM / STAPL ("Standard Test and Programming Language") is an

Altera Altera Corporation was a manufacturer of programmable logic devices (PLDs) headquartered in San Jose, California. It was founded in 1983 and acquired by Intel in 2015. The main product lines from Altera were the flagship Stratix series, mid-ran ...

-developed standard for JTAG in-circuit programming of

programmable logic device A programmable logic device (PLD) is an electronic component used to build reconfigurable digital circuits. Unlike digital logic constructed using discrete logic gates with fixed functions, a PLD has an undefined function at the time of manu ...

s which is defined by JEDEC standard JESD-71. STAPL defines a standard ''.jam'' file format which supports in-system programmability or configuration of programmable devices. A JTAG device programmer implements a ''JAM player'' which reads the file as a set of instructions directing it to program a PLD. The standard is supported by multiple PLD and device programmer manufacturers.

References

{{Comp-eng-stub JEDEC standards Electronics manufacturing Embedded systems