Select the SPI bus channel polarity
NOTE. The SPI Bus Channel Polarity option is available only on instruments with option SR-EMBD.
From the Bus Setup window, select the Select tab and the SPI Serial bus type.
To use
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Scroll through the Bus list and select the SPI bus to configure.
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Click the Polarity box and select the polarity from the drop-down list.
Behavior
For the SCLK component:
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Rising causes the instrument to acquire data on the rising edge of the signal.
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Falling causes the instrument to acquire data on the falling edge of the signal.
For the SS component:
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Active Low causes the instrument to decode the bus when the Slave Select signal is at a low level.
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Active High causes the instrument to decode the bus when the Slave Select signal is at a high level.
For the Data component:
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Active Low causes the instrument to decode signals at a low level.
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Active High causes the instrument to decode signals at a high level.
What do you want to do next?
Learn more about bus setups.
Learn about bus configuration.
Learn about digital setups.
Select the RS-232 bus channel polarity
NOTE. The RS-232 Bus Channel Polarity option is available on instruments with option SR-COMP.
From the Bus Setup window, select the Select tab and the RS-232 Serial bus type.
To use
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Scroll through the Bus list and select the RS-232 bus to configure.
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Click the Polarity box and select the polarity from the drop-down list.
Bus setups
DPO70000SX, MSO/DPO70000DX, MSO/DPO70000C, DPO7000C, and MSO/DPO5000B Series 141