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| RTC https://forum.osdev.org/viewtopic.php?f=13&t=57212 |
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| Author: | ravi [ Mon Apr 15, 2024 3:21 pm ] |
| Post subject: | RTC |
Hello Octocontrabass if i read and write elkhart lake RTC register with assembly in and out instruction (0x70 and 0x71) RDC, 614109- chapter 27.2 but i if do it with mmio(FD00000h + 70h/71h) i am not able to do it. i am using the same procedure as we do with in and out instruction thanks Ravi |
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| Author: | Octocontrabass [ Wed Apr 17, 2024 5:45 pm ] |
| Post subject: | Re: RTC |
That looks like a copy/paste error in the datasheet. You can't use MMIO to access the RTC. |
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