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csk6 soc flash sample

Overview

This sample demonstrates using the flash API on a SPI NOR serial flash memory device. While trivial it is an example of direct access and allows confirmation that the flash is working.

Building and Running

The application will build only for a target that has a devicetree entry with listenai,csk-nv-flash as a compatible.

west build -b csk6 samples/boards/csk6/driver/soc_flash_listenai
west flash

Sample Output

*** Booting Zephyr OS build b5a7185bc25f  ***

Litenai CSK6 Flash Testing

Test 1: Flash erase page at 0x7f8000

Flash erase succeeded!

Test 2: Flash write (word array 1)

Attempting to write 1122 at 0x7f8000 Attempting to read 0x7f8000 Data read: 1122 Data read matches data written. Good! Attempting to write aabb at 0x7f8004 Attempting to read 0x7f8004 Data read: aabb Data read matches data written. Good! Attempting to write abcd at 0x7f8008 Attempting to read 0x7f8008 Data read: abcd Data read matches data written. Good! Attempting to write 1234 at 0x7f800c Attempting to read 0x7f800c Data read: 1234 Data read matches data written. Good!

Test 3: Flash erase (4 pages at 0x7f6000)

Flash erase succeeded!

Test 4: Flash write (word array 2)

Attempting to write 1234 at 0x7f8000 Attempting to read 0x7f8000 Data read: 1234 Data read matches data written. Good! Attempting to write aabb at 0x7f8004 Attempting to read 0x7f8004 Data read: aabb Data read matches data written. Good! Attempting to write abcd at 0x7f8008 Attempting to read 0x7f8008 Data read: abcd Data read matches data written. Good! Attempting to write 1122 at 0x7f800c Attempting to read 0x7f800c Data read: 1122 Data read matches data written. Good!

Test 5: Flash erase page at 0x7f8000

Flash erase succeeded!

Test 6: Non-word aligned write (word array 3)

Attempting to write 1122 at 0x7f8001 Attempting to read 0x7f8001 Data read: 1122 Data read matches data written. Good! Attempting to write aabb at 0x7f8005 Attempting to read 0x7f8005 Data read: aabb Data read matches data written. Good! Attempting to write abcd at 0x7f8009 Attempting to read 0x7f8009 Data read: abcd Data read matches data written. Good! Attempting to write 1234 at 0x7f800d Attempting to read 0x7f800d Data read: 1234 Data read matches data written. Good! Attempting to write 1122 at 0x7f8011 Attempting to read 0x7f8011 Data read: 1122 Data read matches data written. Good! Attempting to write aabb at 0x7f8015 Attempting to read 0x7f8015 Data read: aabb Data read matches data written. Good! Attempting to write abcd at 0x7f8019 Attempting to read 0x7f8019 Data read: abcd Data read matches data written. Good! Attempting to write 1234 at 0x7f801d Attempting to read 0x7f801d Data read: 1234 Data read matches data written. Good!

Test 7: Page layout API

Offset 0x00041234:

belongs to the page 65 of start offset 0x00041000 and the size of 0x00001000 B.

Page of number 37 has start offset 0x00025000

and size of 0x00001000 B. Page index resolved properly

SoC flash consists of 2048 pages.

Test 8: Write block size API

write-block-size = 1