LPC1768-SPI_FLASH_W25QXX I hope use it and enjoy. I use LPC1768 and Keil Compiler. ARM SPI Configuration P0.15 --> SCK p0.16 --> CS p0.17 --> MISO p0.18 --> MOSI ARM Serial Configuration p0.2 --> TXD p0.3 --> RXD W25QXX SPI Configuration P6 --> SCK P1 --> CS p2 --> MISO p5 --> MOSI