Remove pull-up resistor on MEM_CS?

[zsup]

Because the STM32 has internal pull-up resistors, is it possible to remove the pull-up resistor on MEM_CS? If there's good reason to leave it, we should do so, but if it's not necessary it may be worth removing to free up a small bit of real estate.

[andyw-lala]

It takes time to enable the pull-up. If we do it in the very early init code, and document the fact we are doing it and why, I think it is low risk.

Have we removed the RC from the user button yet ? (without eagle here in Chicago, sorry.)

On Mon, Jul 1, 2013 at 7:02 PM, cazzo notifications@github.com wrote:

Because the STM32 has internal pull-up resistors, is it possible to remove the pull-up resistor on MEM_CS? If there's good reason to leave it, we should do so, but if it's not necessary it may be worth removing to free up a small bit of real estate.

— Reply to this email directly or view it on GitHubhttps://github.com/sprk/core/issues/19 .

Andy

[zsup]

yep we have, user button is clear now

Zach Supalla 312.953.3413

On Monday, July 1, 2013 at 7:09 PM, andyw-lala wrote:

It takes time to enable the pull-up. If we do it in the very early init
code, and document the fact we are doing it and why, I think it is low risk.

Have we removed the RC from the user button yet ? (without eagle here in
Chicago, sorry.)

On Mon, Jul 1, 2013 at 7:02 PM, cazzo <notifications@github.com (mailto:notifications@github.com)> wrote:

Because the STM32 has internal pull-up resistors, is it possible to remove
the pull-up resistor on MEM_CS? If there's good reason to leave it, we
should do so, but if it's not necessary it may be worth removing to free up
a small bit of real estate.

—
Reply to this email directly or view it on GitHubhttps://github.com/sprk/core/issues/19
.

Andy

— Reply to this email directly or view it on GitHub (https://github.com/sprk/core/issues/19#issuecomment-20319026).