Comment #4 on issue 139 by Abaldus: problem with adc on 16F1827
http://code.google.com/p/jallib/issues/detail?id=139
Please do not read this as "rude" comment, but it looks like whole ADC
code infrastructure is broken. Please see simplest example here:
include 16f877
pragma target clock 4_000_000 -- oscillator frequency
-- ADC setup
--const ADC_NCHANNEL = 4
const byte ADC_NVREF = 0 -- no external Vref
const ADC_RSOURCE = 10_000 -- Input resistance: 10K potmeter
const ADC_HIGH_RESOLUTION = FALSE -- Low res ADC is good enough!
const byte ADC_CHANNEL = 7 -- potmeter connected to pin_AN7
include adc_channels
Error generated is "ADC_NCHANNEL unknown". If define ADC_NCHANNEL and
include full adc:
include 16f877
pragma target clock 4_000_000 -- oscillator frequency
-- ADC setup
const ADC_NCHANNEL = 4
const byte ADC_NVREF = 0 -- no external Vref
const ADC_RSOURCE = 10_000 -- Input resistance: 10K potmeter
const ADC_HIGH_RESOLUTION = FALSE -- Low res ADC is good enough!
const byte ADC_CHANNEL = 7 -- potmeter connected to pin_AN7
include adc
set_analog_pin(ADC_CHANNEL) -- init the selected ADC channel
Error generated "set_analog_pin is undefined". Clearly whole system of
knobs and controls should be serious reviewed and DOCUMENTED.
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