Timeline for How to access GPIO pins on Atmega with memory mapping?
Current License: CC BY-SA 4.0
13 events
| when toggle format | what | by | license | comment | |
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| Dec 14, 2019 at 1:08 | history | edited | C. K. | CC BY-SA 4.0 |
Added solution
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| Dec 14, 2019 at 1:01 | vote | accept | C. K. | ||
| Dec 13, 2019 at 22:01 | answer | added | Bruce Abbott | timeline score: 3 | |
| Dec 13, 2019 at 21:59 | answer | added | Justme | timeline score: 1 | |
| Dec 13, 2019 at 20:15 | comment | added | C. K. | @ChrisStratton I will try that! | |
| Dec 13, 2019 at 19:57 | comment | added | C. K. | @ElliotAlderson I updated the part of the code for clarity. It was also kind of intentionally not correct, because I'm not sure how memory mapping works. I hope this way represents better what I'm trying to achieve. | |
| Dec 13, 2019 at 19:54 | history | edited | C. K. | CC BY-SA 4.0 |
Improved code.
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| Dec 13, 2019 at 18:04 | comment | added | Chris Stratton | Also use bitshifts to access the individual bits. | |
| Dec 13, 2019 at 17:39 | comment | added | Chris Stratton | Consult the table of addresses in the data sheet, there is a densely contiguous sequence of PINx/DDRx/PORTx without even any gaps between ports. | |
| Dec 13, 2019 at 17:35 | comment | added | Michel Keijzers |
Also you have a semi colon after the for statement in the last but one line, probably unintentionally.
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| Dec 13, 2019 at 17:32 | answer | added | Aaron | timeline score: 1 | |
| Dec 13, 2019 at 17:31 | comment | added | Elliot Alderson |
The last line of your pseudocode doesn't even have an assignment...what are you trying to do? What does 0x00 represent here? What kind of data do you expect offset() to return? Your original code is changing a single bit at a time using the OR operator but your pseudocode doesn't have the OR operator...I don't get it.
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| Dec 13, 2019 at 17:15 | history | asked | C. K. | CC BY-SA 4.0 |