sns22
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Hi.
I am not able to understand the functionality of some PWM registers to be used in capture mode.
I have been trying to interface the PWM based max6672 sensor with the PWM capture pin. I want to read the both the low time and high time of the PWM pulse. I am recieving an interrupt when the PWm input is received. But some how I am not able to calculate the rise and fall time correctly. I need this info to calculate the temperature of the sensor.
PCLKSEL0_bit.PCLK_PWM0 = 1; Can this be also used to set the pclk divisor for the capture input or is it only for PWM funactionality.
I want to use this PCAP0.0 pin as a counter. In the datasheet we have to set the
And if the counter mode is enabled the pins @CCR as must be 000 as set. ref UM10237 datasheet pg 643
But when I do this setting i am not receiving an interrupt from the sensor.
But if I set the PCAP0.0 pin as a timer
later I change in the interrupt to 0x6 for falling edge I am able to detect the interrupt but the counter doesnt have the correct values.
Is there something wrong in my understanding of the code?Can someone clear this for me?
Regards
Sns
I am not able to understand the functionality of some PWM registers to be used in capture mode.
I have been trying to interface the PWM based max6672 sensor with the PWM capture pin. I want to read the both the low time and high time of the PWM pulse. I am recieving an interrupt when the PWm input is received. But some how I am not able to calculate the rise and fall time correctly. I need this info to calculate the temperature of the sensor.
PCLKSEL0_bit.PCLK_PWM0 = 1; Can this be also used to set the pclk divisor for the capture input or is it only for PWM funactionality.
I want to use this PCAP0.0 pin as a counter. In the datasheet we have to set the
Code C - [expand]
And if the counter mode is enabled the pins @CCR as must be 000 as set. ref UM10237 datasheet pg 643
Code C - [expand]
But when I do this setting i am not receiving an interrupt from the sensor.
But if I set the PCAP0.0 pin as a timer
Code C - [expand]
later I change in the interrupt to 0x6 for falling edge I am able to detect the interrupt but the counter doesnt have the correct values.
Is there something wrong in my understanding of the code?Can someone clear this for me?
Regards
Sns
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