while programming my controller throws some junk on uart peripharals*

[himasagar reddy]

Posted on February 05, 2018 at 14:08

Hi Guys,

Am Using STM32F429 device. every thing works fine as per my application but am not getting one thing that when ever am programming my Controller some junk values are placed on my UART peripherals .

How to Stop my controller to throw Junk values to UART peripherals .

Thanks In Advance.

Regards,

Himasagar.

[waclawek.jan]

Posted on February 05, 2018 at 14:13

During device programming the device is essentially in reset state, i.e. most of its pins are floating.

Then it's upon the externally connected circuitry to assure a defined state, e.g. using a (real hardware) pullup/pulldown resistor, as appropriate.

JW