AVR-Chat

--- In AVR-Chat@yahoogroups.com, "Chuck Hackett" <egroupscdh@...> wrote:

> ... proper fuse settings for a device
> ... to be shipped as a final product.  
> JTAGEN: Disable to protect the code
> SPIEN: Disable to protect the code

Why would you want to disable JTAG and SPI if you've used the lock bits to disable programming and verification?  It does no harm, but if a device comes back from the field and needs to be rescued, wouldn't you want these interfaces active to erase the device and reprogram it?

Graham.