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What is the XXX chip used to multiplex analogue to digital conversions (item 2)?
I have found the following from various specs, etc:
DAC is a Dual channel DAC082S085 chip connected to SPI0 of the Raspberry Pi
ADC is multiplexed from an XXX chip (I assume on SPI1)
Digital I/O is via the GPIO pins (GPIO00 - GPIO27).
Answer:
The multiplexer: DG408LE
the selection of the analog input is done via GPIO6, GPIO12 and GPIO13
GPIO | DG408LE |
|---|---|
GPIO6 | A0 |
GPIO12 | A1 |
GPIO13 | A2 |
How can I access these Digital Inputs /Outputs from Codesys?
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