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May 18, 2016
03:31 AM
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May 18, 2016
03:31 AM
Hello all,
I have a short question regarding the Open Drain Mode of the PWMSP001 App.
I 've implemented a controller which is changing the DutyCycle of the PWM signal...
Well, the Push Pull Mode works pretty fine, I get a 3.3V PWM signal on my output pin.
The problem is that I need a 10V PWM signal, but when i was adjusting the settings to
Open Drain and use a external voltage supply of 10V my pin breaks down... (current 5mA)
My setup:
.....................5mA
......... + o--------->--------- ........ --------------------o PWM OpenDrain on P0.0
..................................| ....... |
...........10V..................+--------+-------------------o 10V PWM
....(external supply)
........................................................desired output
...........- o--------------------------------------------------o GND (uC)
Can someone show me how I have to set up the experiment? Maybe with a schematic? I am afraid to lose more pins 😉
Kind regards,
schmidi
I have a short question regarding the Open Drain Mode of the PWMSP001 App.
I 've implemented a controller which is changing the DutyCycle of the PWM signal...
Well, the Push Pull Mode works pretty fine, I get a 3.3V PWM signal on my output pin.
The problem is that I need a 10V PWM signal, but when i was adjusting the settings to
Open Drain and use a external voltage supply of 10V my pin breaks down... (current 5mA)
My setup:
.....................5mA
......... + o--------->--------- ........ --------------------o PWM OpenDrain on P0.0
..................................| ....... |
...........10V..................+--------+-------------------o 10V PWM
....(external supply)
........................................................desired output
...........- o--------------------------------------------------o GND (uC)
Can someone show me how I have to set up the experiment? Maybe with a schematic? I am afraid to lose more pins 😉
Kind regards,
schmidi
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1 Reply
May 18, 2016
07:40 PM
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May 18, 2016
07:40 PM
Hi,
So sorry that I am not so much of a hardware guy. But from my understanding is that the XMC pads is only capable of driving up to 3.3V.
So sorry that I am not so much of a hardware guy. But from my understanding is that the XMC pads is only capable of driving up to 3.3V.