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Calculate the delay  for generating the 10 KHz square waveform with 70% on time and 30% off time. Assume the crystal oscillator frequency to be 11.085 MHz.  Mention the delay in hexadecimal for ON time and OFF  time in hexadecimal.FFBF and FFE3FFC1  and FFE4FFC0  and FFE4FFC0  and FFE5

Question

Calculate the delay  for generating the 10 KHz square waveform with 70% on time and 30% off time. Assume the crystal oscillator frequency to be 11.085 MHz.  Mention the delay in hexadecimal for ON time and OFF  time in hexadecimal.FFBF and FFE3FFC1  and FFE4FFC0  and FFE4FFC0  and FFE5

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Solution

To calculate the delay for generating the 10 KHz square waveform with 70% on time and 30% off time, we first need to understand the total time period of the waveform.

The frequency of the waveform is 10 KHz, which means the time period (T) is 1/Frequency = 1/10,000 = 0.0001 seconds or 100 microseconds.

Now, the ON time is 70% of the total time period and the OFF time is 30% of the total time period.

So, ON time = 70% of 100 microseconds = 70 microseconds And, OFF time = 30% of 100 microseconds = 30 microseconds

Now, we need to convert these times into delay counts for the 11.085 MHz crystal oscillator. The time period of one cycle of this oscillator is 1/11.085 MHz = 0.09 microseconds.

So, the delay count for the ON time is 70 microseconds / 0.09 microseconds = 777.78, which we round to 778. And the delay count for the OFF time is 30 microseconds / 0.09 microseconds = 333.33, which we round to 333.

Now, we need to convert these delay counts into hexadecimal.

778 in hexadecimal is 0x30A. 333 in hexadecimal is 0x14D.

So, the delay for ON time in hexadecimal is 0x30A and for OFF time is 0x14D.

Please note that the hexadecimal values you provided (FFBF, FFE3FFC1, FFE4FFC0, FFE4FFC0, FFE5) do not seem to be related to the calculation based on the information provided.

This problem has been solved

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