Nonuf Yerbiz
New Member
It took me a while to suss out the right connection between Blackcat and my M25P64 target. Hope this helps others. Biggest thing I missed was the slave-in/slave-out wiring: M25P64's MOSI to Blackcat's SO, and MISO to SI. Hold the M25P64's RESET pin to ground while programming.
BlackCatUSB --> Target (M25P64)
Pin 1 GND --> Target's GND
Pin 2 VCC --> (no connection, my board had its own 3.3V supply)
Pin 3 N.C. -->
Pin 4 SI --> SPI_MISO
Pin 5 N.C. -->
Pin 6 SO --> SPI_MOSI
Pin 7 RST --> /RESET
Pin 8 SCLK --> SCLK
Pin 9 PROG --> (no connection)
Pin 10 CS --> /FLASH_CS
BlackCatUSB --> Target (M25P64)
Pin 1 GND --> Target's GND
Pin 2 VCC --> (no connection, my board had its own 3.3V supply)
Pin 3 N.C. -->
Pin 4 SI --> SPI_MISO
Pin 5 N.C. -->
Pin 6 SO --> SPI_MOSI
Pin 7 RST --> /RESET
Pin 8 SCLK --> SCLK
Pin 9 PROG --> (no connection)
Pin 10 CS --> /FLASH_CS