Anonymous
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Feb 15, 2012
01:43 PM
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Feb 15, 2012
01:43 PM
Hello, I have tested my programs with different resolution of ADC in 8MHz (According to the datasheet, this is the maximum dataclock for the module). The ADC values are then trasmitted to a virtual terminal through UART. It is interesting that the ADC has significant chattering bit in ADC resolution which are higher than 8bit.
These are some examples that I get when the analogue input are connected to ground:
8Bit (In Hex Form)
0001
0002
0001
0002
0001
0001
0002
0001
...
...
9bit or higher resolution (In Hex Form)
0001
0002
0002
0001
0002
0001
0002
0001
...
...
0102
...
...
0101
...
...
Are these mainly caused by the 8-bit PWM cycles in the ADC module? Please correct me if I have made any misconceptions.
Thank you very much.
Thank you very much.
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PSoC 1
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