Timeline for Increasing current capability of a Pin
Current License: CC BY-SA 3.0
12 events
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| Jun 11, 2020 at 15:10 | history | edited | CommunityBot |
Commonmark migration
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| Apr 13, 2017 at 12:32 | history | edited | CommunityBot |
replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/
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| Oct 28, 2011 at 3:35 | vote | accept | Saad | ||
| Oct 28, 2011 at 2:19 | history | tweeted | twitter.com/#!/StackElectronix/status/129744135019171842 | ||
| Oct 27, 2011 at 20:26 | comment | added | Saad | @DavidKessner Your solutions are usually the most elegant! I'll try this before messing with any buffers. | |
| Oct 27, 2011 at 20:22 | comment | added | user3624 | I would try it without buffers, but with higher value pullups, and see what happens. No sense making things more complicated than they need to be. If EMI becomes an issue, I'd put a 50 ohm resistor between the CPLD and the harness, with a 0.1 uF cap to GND on the CPLD side of the resistor. | |
| Oct 27, 2011 at 20:09 | comment | added | Saad | @DavidKessner I was recommend to use a stronger pull up/down. I was told this would help with EMI which is a concern because I'm testing long wires (~10m in length). How it helps with EMI, I'm not quite sure as I'm still very inexperienced. I should add, I'm not too concerned with transmitting EMI. The device is never going to be marketed - it's for internal testing of harnesses. I'm more concerned about getting false-positive or false-negative due to interference. Other than that, I was told its good practice to buffer a signal that's leaving the PCB. What would you advise? | |
| Oct 27, 2011 at 18:57 | comment | added | user3624 | Why not just change your pullup/down resistors? Maybe something like 50k or even 100k ohms. | |
| Oct 27, 2011 at 18:42 | answer | added | Konsalik | timeline score: 6 | |
| Oct 27, 2011 at 11:55 | history | edited | Saad | CC BY-SA 3.0 |
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| Oct 27, 2011 at 11:09 | history | edited | Saad | CC BY-SA 3.0 |
added 190 characters in body
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| Oct 27, 2011 at 11:02 | history | asked | Saad | CC BY-SA 3.0 |