I would like to know whether we can use the Boundary Scan functionality of JTAG for programming an onboard Flash device without initializing the core CPU/processor (JTAG compliant Processor).
During the initial board bring up, we need to program the onboard empty flash using the JTAG interface. But we don't want to use the processor core logic for programming flash, since after initial assembly we will not be sure if it is working correctly.
So, is it possible to program onboard (boot & Code) flash(NAND/NOR/SPI) using the JTAG interface on the processor, without initializing processor core logic?