Pirate Bus and ASUS laptop bios

Bus Pirate support for the Flashrom project

Re: Pirate Bus and ASUS laptop bios

Postby nbssss » Wed Dec 05, 2012 11:17 pm

Thanks for the reply!
You've changed my mind, instead I will purchase a new soic 8 clip without soldered cables - less hassle ;)
The one I'm looking at has cabling length of 33cm , would it be OK to use at 1Mhz?
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Re: Pirate Bus and ASUS laptop bios

Postby biosflasher » Thu Dec 06, 2012 6:08 am

33 cm is way too long, I expect it to fail. 10 cm is the upper limit for reliable communication. You could shorten the longer cable to avoid problems.
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Re: Pirate Bus and ASUS laptop bios

Postby nbssss » Sun Dec 16, 2012 8:54 pm

Hi, i've bought a new Pomona 5250 with short adjustable wires. However, the bios chip is not being detected in flashrom.
I have attached photos of the connections used. Would you be so kind to have a look and let me know what i need to modify? (White wire corresponds to CS on both Buspirate and bios chip for orientation purposes) Let me know if you need any more info. Thank you so much, Nabs.
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Re: Pirate Bus and ASUS laptop bios

Postby nbssss » Tue Dec 18, 2012 8:46 pm

:)

The bios chip has been detected! I'm so happy, it's taken me a month and a half but i'm almost there! :)

For those attempting this in the future, what worked was to connect the four signal pins to their counterparts (CS, MISO, MOSI, CLK), Ground to Ground, and also Vcc to 3V3, and disconnect the AC power and remove the laptop battery.

It's currently "Reading flash..."
I'll let you guys know how it goes, thanks so much for everything!
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Re: Pirate Bus and ASUS laptop bios

Postby ian » Tue Dec 25, 2012 4:57 am

I'm glad you're seeing progress! Thanks for the update.
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Re: Pirate Bus and ASUS laptop bios

Postby nbssss » Tue Dec 25, 2012 5:13 am

Thanks Ian!
Btw I've fixed my laptop now, and bought a Sammy 840 pro ssd to celebrate :)
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Re: Pirate Bus and ASUS laptop bios

Postby nbssss » Tue Apr 29, 2014 10:09 am

Found my old bus pirate in a drawer today, can't believe its been 2years haha :)
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