Digi RCM4000 Instrukcja Użytkownika Pobierz pdf (Strona 63)

User’s Manual 57

Reads the calibration constants, gain, and offset for an input based on their designated position in the

flash memory, and places them into global tables

_adcCalibS

_adcCalibD

, and

_adcCalibM

for

analog inputs. Depending on the flash size, the following macros can be used to identify the starting

address for these locations.

ADC_CALIB_ADDRS, address start of single-ended analog input channels

ADC_CALIB_ADDRD, address start of differential analog input channels

ADC_CALIB_ADDRM, address start of milliamp analog input channels

NOTE: This function cannot be run in RAM.

PARAMETER

channel is the analog input channel number (0 to 7) corresponding to LN0_IN to LN7_IN.

opmode is the mode of operation:

SINGLE—single-ended input line

DIFF—differential input line

mAMP—milliamp input line

root int anaInEERd(unsigned int channel,

unsigned int opmode, unsigned int gaincode);

channel SINGLE DIFF mAMP

0 +AIN0 +AIN0 -AIN1

+AIN0

* Not accessible on Prototyping Board.

1 +AIN1 +AIN1 -AIN0* +AIN1*

2 +AIN2 +AIN2 -AIN3 +AIN2*

3 +AIN3 +AIN3 -AIN2* +AIN3

4 +AIN4 +AIN4 -AIN5 +AIN4

5 +AIN5 +AIN5 -AIN4* +AIN5

6 +AIN6 +AIN6 -AIN7* +AIN6

7 +AIN7 +AIN7 -AIN6* +AIN7*

ALLCHAN read all channels for selected opmode

1 2 ... 58 59 60 61 62 63 64 65 66 67 68 ... 123 124

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Digi RCM4000 Instrukcja Użytkownika Strona 63