Products > Test Equipment
Brymen BM789
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joeqsmith:

--- Quote from: EEVblog on August 22, 2022, 04:22:13 am ---For those interested in the exact details here:


--- Quote ---uses hi-speed AD conversion data to do Auto-ranging mechanism. After switching from 600Ω Range to 6kΩ Range, firmware used the first hi-speed AD conversion data to deduct "600Ω Range Offset" to check if further Range-Switching was in need. In case "600Ω Range" and "6kΩ Range" have significant offset difference, the unit may not be able to converge the measurements at around 640Ω ~ 660Ω region in auto-ranging operation mode. Thus not every unit will have this bug. Only the unit with extreme offset difference case has this bug.

Our engineer has modified the firmware to fix this bug. After switching from 600Ω Range to 6kΩ Range, the update firmware version uses the first hi-speed AD conversion data to deduct "6kΩ Range Offset" instead to check if further Range-Switching is in need.
--- End quote ---

--- End quote ---
You've been reading my emails again...
joeqsmith:
Demo of firmware version 78911 which addresses the auto ranging problem mentioned earlier. 
 
EEVblog:

--- Quote from: joeqsmith on August 31, 2022, 02:12:31 am ---Demo of firmware version 78911 which addresses the auto ranging problem mentioned earlier. 

--- End quote ---

Did they give you the chip programmer?
AVGresponding:

--- Quote from: EEVblog on August 31, 2022, 02:37:40 am ---
--- Quote from: joeqsmith on August 31, 2022, 02:12:31 am ---Demo of firmware version 78911 which addresses the auto ranging problem mentioned earlier. 

--- End quote ---

Did they give you the chip programmer?

--- End quote ---

Surely they will have just sent an updated chip or meter?
EEVblog:

--- Quote from: AVGresponding on August 31, 2022, 05:22:17 am ---
--- Quote from: EEVblog on August 31, 2022, 02:37:40 am ---Did they give you the chip programmer?

--- End quote ---
Surely they will have just sent an updated chip or meter?

--- End quote ---

He said it's the same meter, so either a new chip or he's got a programmer now.
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