Source compiled using 'Debug (-g)' optionįirst up is to generate a periodic pulse waveform on the Nucleo that I can feed in as input into a Timer Input Capture pin using a jumper wire.

Nucleo-F103RB board ( ) from Mouser, ST-Link replaced by J-Link firmware ( ).

STM32 Arduino 'Official' core ( ) V1.4.0, installed per.

Arduino IDE v1.85 ( ), running on i7 Win 10 laptop.

TIMER4_BASE->CCMR1 = (0b110 CCMR2 = (0b110 CCER = TIMER_CCER_CC1E | TIMER_CCER_CC2E | TIMER_CCER_CC3E | TIMER_CCER_CC4E TIMER4_BASE->CR1 = TIMER_CR1_CEN | TIMER_CR1_ARPE TIMER3_BASE->CCER = TIMER_CCER_CC1E | TIMER_CCER_CC2E TIMER3_BASE->CCMR1 = 0b100000001 //Register is set like this due to a bug in the define table (30-09-2017) TIMER3_BASE->DIER = TIMER_DIER_CC1IE | TIMER_DIER_CC2IE Timer3.attachCompare2Interrupt(handler_channel_6) Timer3.attachCompare1Interrupt(handler_channel_5) TIMER2_BASE->CCER = TIMER_CCER_CC1E | TIMER_CCER_CC2E | TIMER_CCER_CC3E | TIMER_CCER_CC4E TIMER2_BASE->CCMR2 = 0b100000001 //Register is set like this due to a bug in the define table (30-09-2017) TIMER2_BASE->CCMR1 = 0b100000001 //Register is set like this due to a bug in the define table (30-09-2017) TIMER2_BASE->DIER = TIMER_DIER_CC1IE | TIMER_DIER_CC2IE | TIMER_DIER_CC3IE | TIMER_DIER_CC4IE Timer2.attachCompare4Interrupt(handler_channel_4) Timer2.attachCompare3Interrupt(handler_channel_3) Timer2.attachCompare2Interrupt(handler_channel_2) Timer2.attachCompare1Interrupt(handler_channel_1) STM32 for Arduino - Electronic Speed Controller (ESC) - STM32F103C8T6: STM32 for Arduino - Connecting an RC receiver via input capture mode: More information can be found in these two videos:

In this file the timers for reading the receiver pulses and for creating the output ESC pulses are set. The application uses TIM2 and TIM3 (input capture of pilot commands from an RC receiver) and also TIM4 (PWM outputs to quadcopter motor controllers). It makes use some lower level bit manipulation of TIM2-4 for interrupt based input capture of pulse inputs as well as hardware PWM control of outputs. This was originally developed around a slightly earlier version of Roger's libmaple based STM32duino core ( ). I'm hoping to gain enough understanding of this core and STM32 timer control to port this flight controller application ( ).

I'll document my efforts here in this thread to capture the steps and test results.

So total energy remains Constant.I'm trying to put together a minimum STM32F1 Arduino sketch for Input Capture hardware timer example using Interrupts to measure an input pulse stream (single pulse stream for now, with 6 total inputs to eventually be captured for my intended application. is experimental value there should be some variation That is present here also As the ball moving up or down total energy should remains Constants when it moves up potential energy increases as its height is increases & kinetic energy decreases as velosity decreases. As it is experimental value, there are some resistance like air resistance, So total energy is varying but ideally it should be constant. 4 Total energy almost remains Constant around 5.8 J. As ball is thrown heigh increases, Rotential energy increases, reaches maximum value of then again decreases.

This gives the ball a kinetic energy mo? As the ball rises its velosity decreas 4 reaches minimum value at maximum height point where voo & then again increases as its velosity increases 3 Potential energy vs time graph also following Parabolic in shape but opposite as previous. When a basket ball is thrown up an initial Velosity is imparted on it. Time vs kinetic energy is parabolic in shape.

30 ppm in logger pro picture