Quote:
Originally Posted by dom123dom
This is very helpful thanks. What did you do to fix the device that ended up with this:
Code:
CPU: Temperature 37 C, calibration data: 0x5a45255f
Reset cause: POR
FRED::: EXTCSD177=0, 179=48FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
Board: Heisenberg
Board Id: P00118xxxxxxxxx
S/N: G000K90xxxxxxx
I2C: ready
DRAM: MR5=0x1,MR6=0x4 512 MiB
Did you manage to fix that one?
I have spent a lot of time and effort (and enough money to buy a new kindle!!) replacing the USB connector port and the battery, it has not resolved the charging problem.
It was a good experience to learn how to do it but I'm disappointed it didn't fix it!
I'm learning slowly...where did you get a replacement shunt from and how do you replace it?
Thanks again for sharing your experience. |
No I didnt fix it.:-( I`m still trying but time is luxury I dont have.There is another clue which sticks me to Voltage related problem.If you look at succesfull boot you can see difference in setting DRAM mode registers.MR6 register is related to memory voltage margining (VREFDQ).
Quote:
U-Boot 2014.04 (May 15 2018 - 10:48:36)
CPU: Freescale i.MX6SL rev1.3 at 792 MHz
CPU: Temperature 34 C, calibration data: 0x5815045f
Reset cause: POR
FRED::: EXTCSD177=0, 179=48FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
Board: Heisenberg
Board Id: P00118xxxxxxxxx
S/N: G000K9xxxxxxx
I2C: ready
DRAM: MR5=0x6,MR6=0x3 512 MiB
WARNING: Caches not enabled
MMC: FRED::: EXTCSD177=0, 179=48FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
*** Warning - bad CRC, using default environment
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