Lecture 13: Timer PWM Output

[@radhey04ec]

Information provided by you is really useful.... Too much deeply and very core information regarding internal mechanisms. Very useful for Students, Beginners, professional... Specially for person who do not have enough money to attend paid course and who have no good teacher or leader.. Thanks

[@embeddedsystemswitharmcort9051]

Glad it was helpful!

[@nehatawale7140]

The best explanation for the topic possible.😃

[@siva643]

Wow very nice explanation, I have just started my career in embedded, when I'm searching so many videos found this... It helps a lot.. thank you so much

[@OverlordNibble]

you have a great voice

[@АндрейИ-ф3л]

Стивен Хоккинг.

[@gudimetlakowshik3617]

It is text-to-speech converted voice...He doesn't really have one...!!

[@MCU_STM]

Really perfect. Lots of details have been told. Great tutorial on timers.Tnx!

[@krish2nasa]

Excellent Explanation, Thank you very much Yifeng

[@mousumimandal5464]

I appreciate the effort being put in such a clarification of the embedded system... There are really some perfect people to teach such a perfect thing with such a perfection... uff awesome... appreciate man appreciate :::《)))

[@sagar73594]

Precisely as always. Thanks

[@male22male22]

excellent explaination

[@sunilvasudevan01]

Please add one more condition for triggering the OCREF output. For upcounting trigger point condition is TIMx_CNT TIMx_CCRx

[@timowolff1105]

Great Video!! I got a question, if i wanted to implement three phases using the Center-aligned mode, did i have to set a seperate interrupt for the phase shift or would it be enough to just start the three timers simultaniously but with three different CCR values?

[@embeddedsystemswitharmcort9051]

One timer with three channels. Each channel has its own CCR value. A single interrupt.

[@梦醒红楼]

sincere thanks, save me a lot of trouble

[@Hanutabluta]

just a PERFECT explanation

[@PhuongNguyen-ui5mq]

Thanks so much for such detailed information!

[@ajreukgjdi94]

There's one slide I'm not entirely sure if it's my misunderstanding, or the chart mismatched. at 9:45 it looks like on the increasing side, OCREF is high when counter=CCR. but on the falling side, OCREF is low when counter=CCR. Did I misunderstand?

[@arunvarghese9015]

PWM mode 1: if (counter < CCR) output=H else output = L PWM mode 2: if (counter >= CCR) output = H else output = L

[@maestososhifu]

Fantastic

[@josephzhang1797]

So the clock is implemented by the GTM?

[@yessinekammoun1997]

How to set the psc register value so that we can see the evolution of a led for exemple. In other words how to set the period ?

[@kareemelgamal759]

Nice explanation , thanks

[@ofentsetshepe]

amazing stuff

[@syauqisabili3776]

Nice video sir! and thank you for ur explanation But i can't still understand about Auto-Reload Preload Enable (ARPE). could you give me example of ARPE's purpose? Because, I've experienced setting or clearing it in debug mode but I can't see the difference , It still generates the same PWM wave form .

[@embeddedsystemswitharmcort9051]

When you update ARR, do you want the new ARR value to take effect immediately, or do you want the ARR update to wait until the current counting cycle completes? This is controlled by ARPE bit.

[@pinindumihiranga7738]

Thank You very much

[@devilatha8343]

Plese tell me What is formulas for finding pwm, CCR,arr.prescaler

[@ayoubkouch56]

that would be more than perfect if you can put with this a vhdl code of it. therefore is still a perfect explanation

[@embeddedsystemswitharmcort9051]

VHDL? Are you sure?

[@crateer]

Why such a short Channel Name? Haha Great video

[@embeddedsystemswitharmcort9051]

Did you mean the channel name is too long?

[@ehsandaneshvar]

thank you you solved my problem

[@embeddedsystemswitharmcort9051]

Glad to know that. :)-

[@kingfalconkhan]

Nice video but a bit too advanced and things went over my head. Maybe I have to practice step by step and then understand it slowly.

[@rimpyjain5256]

can u plzz help to write a code to shift the pwm in stm32f0

[@ravikhandelwal2996]

What is OCREF, CCER?

[@CristianGomez-vc8pk]

nice video, you have the book Embedded Systems with Arm Cortex-M Microcontrollers in Assembly Language and C(second edition) Can you pass this book to me? please

[@aswahd]

Do you have the pdf of the book?

[@zohaibakramlali6261]

plz tell me how many PWM can generate a arm cortex M3

[@ahmetyildiz1306]

for stm32F103 mainly there are 4 independent pwm(timer port). you can setup how ever you want. every port has 4 output that have same counter values but different output forms.

[@devilatha8343]

How can we give ARR & CRR values

[@waynet8953]

They're are registers. You interface through a computer language (eg. C or assembler) and a program translates it to machine language of instructions. These registers just are just memory locations that can be written in assembler or C language. Placing data values in these memory correspond to giving values to ARR and CRR.

[@MCSGproject]

Eddie Amaya has good videos on how to read/write to registers for stm32, and the conventions used.

[@Jarrod_C]

This was way too advanced, wish you had a more basic explanation.

[@paulpixzy5297]

How can i make ocr a and ocr b go high and low at the same time

[@embeddedsystemswitharmcort9051]

make sure they have the same settings.