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DomesticExtremis · 10-03-2019, 04:18 AM

Well I stumbled across some info during my investigation of the TPS65185 chip. In the datasheet, section 8.37.
It seems that the PMIC can measure and save the adjustment value but how uboot or the kernel can be persuaded to make that happen I don't know. I have a suspicion that the second serial header on my Aura H2O is there for the purpose of doing that at the factory, so maybe that is the only possibility, no doubt you would need some special programmer to interface with it.
If some of you smart hackers can figure out how to do it, I'd be interested to sse the result.

ETA: here, maybe?

10-03-2019, 04:18 AM	#6
DomesticExtremis Addict Posts: 243 Karma: 359054 Join Date: Nov 2012 Device: default	Well I stumbled across some info during my investigation of the TPS65185 chip. In the datasheet, section 8.37. It seems that the PMIC can measure and save the adjustment value but how uboot or the kernel can be persuaded to make that happen I don't know. I have a suspicion that the second serial header on my Aura H2O is there for the purpose of doing that at the factory, so maybe that is the only possibility, no doubt you would need some special programmer to interface with it. If some of you smart hackers can figure out how to do it, I'd be interested to sse the result. ETA: here, maybe? Last edited by DomesticExtremis; 10-03-2019 at 04:36 AM.