SPI Flash Demo Introduction

Introduction and the function/configuration of SPI Flash functions. More...

SPI Flash Demo Introduction

Overview

This demo application provides a command line console and a series of commands to access the SPI Flash. These commands can be used either to read, write, or erase the SPI flash.

Supported Hardware

• TWR-K64F120M (OpenSDA as debug UART)
• FRDM-K64F120M (OpenSDA as debug UART)

Default Debug Console

• UART instance: OpenSDA CDC
• Baud rate: 115200 bps

UART Output

SF Test >probe 0:0 5000000
SF: Detected AT26DF081A with page size 4096, total 1048576
SF Test >help
SPI flash sub-system
probe [[bus:]cs] [hz] [mode]    - init flash device on given SPI bus
                  and chip select
read addr offset len     - read `len' bytes starting at
          `offset' to memory at `addr'
write addr offset len    - write `len' bytes from memory
              at `addr' to flash at `offset'
update addr offset len  - erase and write `len' bytes from memory
                  at `addr' to flash at `offset'
erase offset [+]len        - erase `len' bytes from `offset'
          `+len' round up `len' to block size
help - print usage
SF Test >erase 0x0 0x100000
SF: Successfully erased 1048576 bytes @0x0
SF Test >