About Nicholas Yunker_2

Nicholas Yunker_2 · 2024-05-13

Hello,I am attempting to set up a timer PWM output to have a set 600s period with a variable duty cycle based on a potentiometer input using an STM32G030J6 MCU. I've setup PWM output timers before will little difficulty but this time I'm having a di...

Nicholas Yunker_2 · 2023-07-10

I am using the Nucleo-F091RC board to communicate with a Motor that allows me to change it's speed with CAN. I have the nucleo board attached to an Adafruit CAN Pal board which has a TJA1051T/3 from NXP as the CAN transceiver but I have yet to actua...

Nicholas Yunker_2 · 2023-07-01

I am attempting to use a rotary encoder (Bourns PEC11R-4215F-S0024) with an STM32F091 Nucleo board. I would like to have it count a consist number of "counts" for every "click" of the encoder.Hardware Setup: Pin A is connected to PA0, Pin B is connec...

Nicholas Yunker_2 · 2023-06-30

I am attempting to use a rotary encoder (Bourns PEC11R-4215F-S0024) with an STM32F091 Nucleo board. I would like to have it count a consist number of "counts" for every "click" of the encoder.Hardware Setup: Pin A is connected to PA0, Pin B is conne...

Nicholas Yunker_2 · 2022-02-16

I am interfacing a 5V PWM signal with an STM32F030K6T6 MCU using PB0. According to the datasheet this pin is 5V Tolerant. In the past, regardless of a pin's "tolerance" to 5V I have always used a level shifter to change this 5V signal to a 3.3V sig...

Nicholas Yunker_2 · 2024-05-14

Jitter isn't a concern in my application. I looked into the resolution and I was able to calculate it to be 16bits...the max for this MCUResolution(bits) = log (ARR + 1) / log(2) = log(65536) / log(2) = 16 bits.I think this will be a good solution. ...

Nicholas Yunker_2 · 2024-05-13

Uwe,I was able to figure this out before you got back to me using these equations:PWM Freq = Fclk/((PSC + 1) (ARR + 1))DC = CCR/ARRI'm running the MCU at 125kHz and setting ARR at the full value of 65535, this gives me a prescaler of 1143...this resu...

Nicholas Yunker_2 · 2023-07-12

My apologies...I used the oscilloscope probes instead of the logic probes and now I see both CAN_H and CAN_L signals as I would expect. I am still new to CAN and I wasn't aware that the "zero" for CAN is actually 2.5V...with that in mind here is the...

Nicholas Yunker_2 · 2023-07-12

I did check to see if I disconnect the motor from the CAN Bus and only have the Nucleo board on it, the CAN_H signal still remains high the whole time. I figured this would rule out the issue being with the motor controller...

Nicholas Yunker_2 · 2023-07-12

I was just able to confirm what wire should be CAN_H and which one should be CAN_L. I did in-fact have them backwards. When I connected them correctly all data transmissions only appear on the CAN_L, both data sent from the Nucleo board to the Moto...

User statistics

User Activity

Long Period Timer PWM Setup

Nucleo-F091RC CAN Bus not communicating

Timer Rotarty Encoder Mode not Counting Properly

Timer Encoder Function STM32F091 Nucleo Board

5V Tolerant GPIO pins (STM32F030K6T6)

Re: Long Period Timer PWM Setup

Re: Long Period Timer PWM Setup

Re: Nucleo-F091RC CAN Bus not communicating

Re: Nucleo-F091RC CAN Bus not communicating

Re: Nucleo-F091RC CAN Bus not communicating