Adding USB Interface to Low-Cost 8-Bit Microcontroller
- From: "David T. Ashley" <dta@xxxxxxxx>
- Date: Mon, 9 Jun 2008 21:13:19 -0400
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.
.
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