- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Hi
Our device has the chip CYW943907 running FreeRTOS and we are not using OTA2 support. We have used OTA support.We have 8 MB external Flash on the board.
We have a requirement to maintain the unique serial number per device, which gets flashed in the production line.
We are planning to keep Manufacturing information and WIFI AP details separately and Application DCT separately, To avoid the losing the information when Application DCT .bin has been updated.
Help we are looking for is ,
Is there a way to store the Manufacturing Information such as serial number , production details and Application DCT.bin separately . Where Manufacturing information shall be retained over the product life.
Solved! Go to Solution.
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
In flash, our general recommendation is to store manufacturing information in DCT. There is a document /43xxx_Wi-Fi/doc/WICED-AN800-R-Factory-Programming.pdf which shows how to generate unique DCT image for a device.
Beyond DCT, the other options could be used to store device MAC address as explained in that document in section 4 such as OTP, NVRAM. However, OTP programming is an irreversible process.