With tremendous growth in capacity, programming NOR and NAND flash memories at full functional speed is a must. But how? Here are the ins and outs on using an onboard FPGA and IJTAG, the IEEE 1687 Internal JTAG standard.
Historically, most in-system programming methods took advantage of another device’s JTAG port to access memories which lack JTAG. Now, more advanced IJTAG-based programming methods use an FPGA’s JTAG port and speed up the programming process by as much as 1,000 times, reducing programming times dramatically from over 10 minutes to seconds! And production time plummets too.
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