Sorgelig wrote:MiSTer binary sends RTC info to cores among other info such as keyboard, mouse, etc.
Sorgelig wrote:There is no book of documentation if you mean this.
You can check hps_io.v signals. There you will find RTC info.
It would be more clear if you would tell what you want to do. Are you writing core which needs RTC?
Sorgelig wrote:It will require to add driver for this chip into Linux Kernel.
eris wrote:Okay. I see. The date-time service just formats the Linux date/time and passes it to the Minimig core, so you only need to change the Linux driver to support the new RTC chip.
Sorgelig wrote:eris wrote:Okay. I see. The date-time service just formats the Linux date/time and passes it to the Minimig core, so you only need to change the Linux driver to support the new RTC chip.
But i strongly suggest to use recommended chips. They are not hard to find and there is board already for them.
Otherwise you will have to modify and compile every new kernel release.
THaase wrote:M41T81SM6F (Same as mentioned on the Wiki Page)
LCSC (alternative link to LCSC slightly cheaper)
cvenditti wrote:Or super cheap (but might take 4 weeks to come ):
https://www.aliexpress.com/item/M41T81- ... 0.0.HpTzM8
THaase wrote:Sorgelig wrote:does it work for you correctly?
Looks like having no issues (just running for some hours).
Let's see how it behaves over the weekend on battery.
Sorgelig wrote:You don't need to solder Temp Sensor. It's optional and currently not used.
I've used P/N AD7415ARTZ-0500 on my board.
https://twen.rs-online.com/web/p/temper ... rs/5236276
Sorgelig wrote:Generally speaking, no. They have different I2C addresses.
Currently there is no software support for temp sensor and i cannot tell if it will be easy to support different addresses or not.
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