Raptor Computing Systems Community Forums (BETA)

Raptor Computing Systems Hardware => Blackbird => Topic started by: power9mm on January 21, 2023, 02:13:20 pm

Title: Question about firmware flash switches
Post by: power9mm on January 21, 2023, 02:13:20 pm

does "1" mean its enabled? and is that film on them a tamper protection?

https://imgur.com/j9cXkwW.png

Title: Re: Question about firmware flash switches
Post by: atomicdog on January 21, 2023, 11:35:28 pm

The film (kapton tape) is there to protect the switch when it's being soldered to the motherboard add to allow a machine to pick up the part and place it on the motherboard.

Title: Re: Question about firmware flash switches
Post by: power9mm on January 22, 2023, 02:51:27 pm

so which setting enables write protection? I assume it's 1, but I want to be sure. I haven't seen it documented specifically.

Title: Re: Question about firmware flash switches
Post by: atomicdog on January 28, 2023, 11:24:52 pm

Looking at the schematic, moving the switch towards 1 disables write protection (allows writing).
The pin is disconnecting from BMC control and pulled high by resistor; 1(off) 2(on)