Raspberry PI 4 Model B - Flash IS25LP256 through Artix7

Access and write SPI Flash Memory IS25LP256 for Artix7 from RaspberryPi 4B

I ported from here.

https://github.com/nopnop2002/Raspberry-W25Q64.git

Software requirement

• WiringPi Library

This project uses the wiringPiSPISetup() function to initialize SPI, and use /dev/spidev0.0.

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Build

git clone https://github.com/bsooho/A7FlashWrite
cd A7FlashWrite
sudo make

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Wiring

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ISSI Flash memory information

Device	# of Bytes	Address range	# of 4K-Sectors	# of 32K-Blocks	# of 64K-Blocks	JEDEC ID
IS25LP256	32M	0x1FFFFFF	8192	1024	512	9D-60-19

• Normal 80MHz clock operation
• Upto 166MHz clock operation

IS25LP256

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