Hi,
I work for a company that produces low-cost consumer electronics that use
8-bit microcontrollers. These have the standard 8-bit whistles, like SPI, SCI, etc.We've kicked around the idea of allowing customers to re-FLASH our products. The re-FLASHing would be facilitated by code we write that runs in the microcontroller and reprograms a portion of the FLASH.
We have a handle on digital signatures and what would be required to prevent a customer from "forging" a software load.
However, what is required to implement a USB interface in the product (for an 8-bit microcontroller), and what is required as far as a driver on the PC side? The goal would be that we distribute a re-FLASHing application to the customer that runs on the PC. They would run this application with a USB cable connected from the PC to our product.
What all is required (hardware, driver development kits, etc.)?
Thanks for all.