About Arthur Franca

Arthur Franca · 2018-03-06

Posted on March 06, 2018 at 17:49Hello,I have been using the STM32L1 Discovery Kit with the STM32L152RCT6 MCU. A project that I am working on requires me to output two PWM signals. One of these is a 100KHz square wave and the other is 5MHz square wa...

Arthur Franca · 2018-03-07

Posted on March 07, 2018 at 19:23Yes you were right my division was a bit off, I have now corrected. And yes that makes sense. Thank for your help!

Arthur Franca · 2018-03-07

Posted on March 07, 2018 at 18:52No no, that was my original mistake the above code is now working with prescaler value at 1!RC filter would definitely do it. Is there no way to clean the wave further on the MCU though?

Arthur Franca · 2018-03-07

Posted on March 07, 2018 at 18:25 Hi Ted, Sorry the high setting did work! It was a weird coding issue I've now fixed. The denominator in the formula is [1+1][2+1] = 2*3 = 6 I now am getting the 5.3MHz wave. however I am also getting a signif...

Arthur Franca · 2018-03-07

Posted on March 07, 2018 at 17:54I have now corrected the speed setting on the pin by putting it to a high setting. I then kept my period value at 2 with a pulse of 1 for a 50% duty cycle. My prescaler value I tried placing at 1. This would in theor...

Arthur Franca · 2018-03-07

Posted on March 07, 2018 at 15:38Ted,If you look in the configuration section of CubeMX, under the Control tab click on the timer that you have set up in the GUI and navigate to the GPIO Settings tab, there is a maximum output speed setting which ca...

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STM32L1 Discovery Kit 5MHz PWM Generation

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