Micron Xccela Flash - Program; Read

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CCM005-1718347970-10451

micron_xccela_zedboard_user_guide.pdf Rev 2.1 4/19 11

Micron

Xccela

™

Flash User Guide for ZedBoard

™

4.3.1 Program

Step 1: erase

spi_programmer erase <device> <offset> <len>

device: mtd0

offset: depends on where you want to start erasing

len: erasing size

For example: Erase flash from address 0x0 to 0x20000>

zynq> spi_programmer erase /dev/mtd0 0 0x20000

Erased 131072 bytes from address 0x00000000 in flash

Step 2: program data from source file (source file is stored in SD card)

spi_programmer write <device> <offset> <len> <source-filename>

device: mtd0

offset: depends on where you want to start programming

len: length to program

source-filename: your input file

For example: Program uImage from SD card to flash, from 0x0 to 0x20000

zynq> spi_programmer write /dev/mtd0 0 0x20000 /sdcard/uImage

Copied 131072 bytes from /sdcard/uImage to address 0x00000000 in flash

4.3.2 Read

spi_programmer read <device> <offset> <len> <dest-filename>

device: mtd0

offset: the start reading address in spi nor

len: length

dest-filename: the file name of saving data

For example: Dump flash data (from address 0 to 0x20000) to SD card:

zynq> spi_programmer read /dev/mtd0 0 0x20000 /sdcard/read.bin

Copied 131072 bytes from address 0x00000000 in flash to /sdcard/read.bin

Note: Run the

sync

command after every read operation to make sure the

data pattern is completely dumped from the SRAM to the SD card:

zynq> sync