This is a P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for Analog Devices AD799x-series ADCs.
IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.
- I2C connection at up to 400kHz (maximum is not enforced)
- Read ADC word or voltage in micro-volts
- Set active channel mask
- Set function of BUSY/ALERT pin
- Set ADC data rate (currently interval between measurements)
P1/SPIN1:
- spin-standard-library
signal.adc_common.spinh(provided by spin-standard-library)
P2/SPIN2:
- p2-spin-standard-library
signal.adc_common.spin2h(provided by p2-spin-standard-library) (NOTE: untested on P2)
| Processor | Language | Compiler | Backend | Status |
|---|---|---|---|---|
| P1 | SPIN1 | FlexSpin (6.9.4) | Bytecode | OK |
| P1 | SPIN1 | FlexSpin (6.9.4) | Native/PASM | OK |
| P2 | SPIN2 | FlexSpin (6.9.4) | NuCode | Untested (build OK) |
| P2 | SPIN2 | FlexSpin (6.9.4) | Native/PASM2 | Untested (build OK) |
(other versions or toolchains not listed are not supported, and may or may not work)
- Supports AD7993, AD7994, AD7997, AD7998
- Tested with AD7993-1 (Parallax Propeller Board of Education)
- Untested with P2
- Very early in development - may malfunction, or outright fail to build
- Channels other than first aren't fully implemented yet
- SCL/SDA on-chip filtering not yet implemented
- BUSY/ALERT active state not yet implemented
- Interrupts not yet implemented
- I2C high-speed mode not yet implemented