power pack need 2 sets of panel if over 10 amps as for p4 they are too high use one gnd (black negative from power pack) on panel leave rest n/a gnd on usb from power pack between stm and pc no gnds need on panels power pack tear down

[psmmacker]

 

 

put 1 gnd as it flickers if they all linked to gnd

gnd between computer and stm32 discovery from power pack

may need 2 female (one from pc the other to stm32 discovery board)

 usb sockets improve pcb i will ask sash to  design but you can see

how i wired it and what two socket  to femail to femail standred dont matter what way they was wired would be bi directional

the red green white stayeds the same only black hads a extra gnd added from the power pack

 

[malenko]

Try posting in the correct section for a change.

[psmmacker]

i asked wildman to move it a gain cant seem to post in the right section

on moble

thanks paul