Your task is to write a program that samples an analog signal a0 as illustrated below using the MSP430’s ADC12 device. Answer the following questions. A. What is the maximum and minimum input voltage of the input signal a0? B. What is the duration of one period of the input signal a0 in milliseconds? C. Let us assume that we configure the MSP430’s device to sample analog input a0 with the sampling frequency fsample = 2 KHz. How many samples, M, do we have per one period of the input analog signal? Fill in the following table by determining the first 6 samples and the last (Mth) sample. Assume that our sampling is synchronized with the a0 (i.e., the first sample is taken at the very beginning of an a0 period). Assume reference voltages VR+ = 2.5 V and VR- = 0V.
Your task is to write a program that samples an analog signal a0 as illustrated below using the MSP430’s ADC12 device. Answer the following questions. A. What is the maximum and minimum input voltage of the input signal a0? B. What is the duration of one period of the input signal a0 in milliseconds? C. Let us assume that we configure the MSP430’s device to sample analog input a0 with the sampling frequency fsample = 2 KHz. How many samples, M, do we have per one period of the input analog signal? Fill in the following table by determining the first 6 samples and the last (Mth) sample. Assume that our sampling is synchronized with the a0 (i.e., the first sample is taken at the very beginning of an a0 period). Assume reference voltages VR+ = 2.5 V and VR- = 0V.
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Given the information below.
Your task is to write a program that samples an analog signal a0 as illustrated below using the MSP430’s
ADC12 device. Answer the following questions.
ADC12 device. Answer the following questions.
A. What is the maximum and minimum input voltage of the input signal a0?
B. What is the duration of one period of the input signal a0 in milliseconds?
C. Let us assume that we configure the MSP430’s device to sample analog input a0 with the sampling frequency fsample = 2 KHz. How many samples, M, do we have per one period of the input analog signal? Fill in the following table by determining the first 6 samples and the last (Mth) sample. Assume that our sampling is synchronized with the a0 (i.e., the first sample is taken at the very beginning of an a0 period). Assume reference voltages VR+ = 2.5 V and VR- = 0V.
B. What is the duration of one period of the input signal a0 in milliseconds?
C. Let us assume that we configure the MSP430’s device to sample analog input a0 with the sampling frequency fsample = 2 KHz. How many samples, M, do we have per one period of the input analog signal? Fill in the following table by determining the first 6 samples and the last (Mth) sample. Assume that our sampling is synchronized with the a0 (i.e., the first sample is taken at the very beginning of an a0 period). Assume reference voltages VR+ = 2.5 V and VR- = 0V.
| Sample Number | t [ms] | a0 [V] | Sample value [decimal] |
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| M = |
E. If you know that less than 17 processor clock cycles is spent for processing one sample in the ADC12 ISR (read the sample for the ADC12), and the MCLKC is configured at 8Mhz, what would be the maximum sampling frequency we could have without oversubscribing our processor time? Elaborate your answer.
Transcribed Image Text:Volts
2.5
2.25
2
1.75
1.5
1.25
1
0.75
0.5
0.25
0.25
0.5
Sec
0.75
1
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