Posted on December 07, 2014 at 00:53
Hi,
I'm trying to read a PP Sum Signal with the TIM3_CH4 of my stm32f103rb.
The signal of the first channel is recognizable but not steady.
What am I doing wrong.
TIM3 CH1 2 3 and TIM1...
Posted on December 08, 2014 at 12:36 >Okay, but wh y would 0x0F give the best result? How much filtering you expect? Every value !=0 has the same result so i just eft the last tested one in. >If previous capture happened atcaptureValueOld...
Posted on December 08, 2014 at 09:01 >> TIM_ICInitStructure.TIM_ICFilter = 0xf; >Are you sure? Do you know what does this exactly do? It filters/debounces the input - tried all 16 values and 0x0 (disabled filter) is giving the worst result...
Posted on December 07, 2014 at 21:51The waveform is correct (checked with my DSO). I've tried a 5V 50% duty cycle 1kHz square wave from my function generator. The result is: 30% is correctly recognized as 1000 the rest is somewhere between 2000 and ...
Posted on December 07, 2014 at 16:18A PPM Signal see [1]. It consits of 8 pulses each, is 1ms to 2ms high and has a low time of 0.4ms between them. The ninth high is the rest to fill a complete 20ms cycle ( the picture shows this). So I'm expecting ...
