dseq32_matrix
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dseq32_matrix [2006/07/05 22:43] mess |
dseq32_matrix [2006/10/15 09:35] (current) |
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| modifications to [[http://www.ucapps.de/mios/sm_example1_v2.zip|scan matrix example]] <sup>uCApps</sup>\\ | modifications to [[http://www.ucapps.de/mios/sm_example1_v2.zip|scan matrix example]] <sup>uCApps</sup>\\ | ||
| + | ==== Hardware ==== | ||
| + | [[http://users.skynet.be/sky92755/DSEQ32_DOUT.pdf|DOUT wiring]]\\ | ||
| + | \\ | ||
| + | [[http://users.skynet.be/sky92755/DSEQ32_DIN.pdf|DIN wiring]]\\ | ||
| + | |||
| + | //*note: schematics not finished!//\\ | ||
| + | ==== Software ==== | ||
| in main.c:\\ | in main.c:\\ | ||
| Line 76: | Line 83: | ||
| ... | ... | ||
| </code> | </code> | ||
| + | |||
| + | ==== Appendum ==== | ||
| + | To avoid flickering leds when pushing a button | ||
| + | the MIOS button debouncing should be turned off!! | ||
| + | |||
| + | Due to the setup of the SRIO driver the debounce algoritm | ||
| + | also delays the DOUT chain when a DIN event is being debounced. | ||
| + | So when a button is pushed the led update frequency is reduced, | ||
| + | the higher the debounce value, the lower the update frequency. | ||
| + | |||
| + | According to this post TK will fix this in a future MIOS release: | ||
| + | >This is something what I'm planning to solve in one of the next MIOS versions - currently the same SR scanning routine is used for DIN and DOUT registers, which means, >when the DINs are temporary disabled due to the cheap debouncing method, the DOUT registers won't be updated. | ||
| + | \\ | ||
| + | >The solution is to add a second scan routine which only services the DOUTs so long the debouncing delay is active. | ||
| + | \\ | ||
| + | |||
| + | In the meantime THIS ISSUE IS SOLVED WITH MIOS1.9c!!! | ||
| + | == Workaround == | ||
| + | To turn the debouncing off, set | ||
| + | <code> | ||
| + | #define DIN_DEBOUNCE_VALUE 0 | ||
| + | </code> | ||
| + | |||
| back to [[DSEQ32]] | back to [[DSEQ32]] | ||
dseq32_matrix.1152139425.txt.gz ยท Last modified: 2006/10/15 09:35 (external edit)
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