Trying to enable each of the 4 output channels on the TCA9546A.
Sheet 14 appears to be the relevant section of the datasheet: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftca9546a
My A2, A1 and A0 pins are all tied low in hardware.
Refer to the attached scope shot. Blue is data yellow is clock.
After the initial write, I write 11100000, which should corespond to the fixed slave address and the state of those 3 pins.
Then I write 00001111. The first 4 bits are don't cares and the 4 ones should enable all 4 channel outputs.
However, I still can't get anything out of any channel with any subsequent writes.
Is there another subsequent or prior write I have to do? What could I be missing?
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BMC99
Trying to enable each of the 4 output channels on the TCA9546A.
Sheet 14 appears to be the relevant section of the datasheet: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftca9546a
My A2, A1 and A0 pins are all tied low in hardware.
Refer to the attached scope shot. Blue is data yellow is clock.
After the initial write, I write 11100000, which should corespond to the fixed slave address and the state of those 3 pins.
Then I write 00001111. The first 4 bits are don't cares and the 4 ones should enable all 4 channel outputs.
However, I still can't get anything out of any channel with any subsequent writes.
Is there another subsequent or prior write I have to do? What could I be missing?
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