Jason,
On 3/17/2011 5:30 PM, Jason wrote:
>
> I'm currently programming the boot flash on a C6747 EVM board by
> placing the device in a special boot mode that allows the boot program
> to be loaded via the C6747's UART/RS232 port. The C6747 rom code
> somehow sends this to the SPI EPROM (flash?) chip. When this is done,
> I set the boot mode to be from the SPI EPROM and magically the code
> boots and runs.
>
> That's great, but we're going to be moving to production and
I'm
> wondering what's the best way to program the SPI EPROM in production?
> Doing the UART/RS232 stuff seems doable, but clumsy.
>
Depending on volume, the normal production issues are TTP [time to
program] and cost. With the exception of high volume production, the
only reasonable way to program the EPROM is via a serial path. With the
right hardware, like 1 or more 24 port RS232 switches, you can use
parallelism to maximize the throughput. If you use ATE, it _might_ make
sense to program the EPROM during test.
mikedunn
> Look for some advice.
>
> jason