Z-World RabbitCore, User Manual

Page: 53 / 138

User’s Manual 47
Reads the calibration constants, gain, and offset for an input based on their designated position in the
simulated EEPROM area of the flash memory, and places them into global tables for analog inputs. The
constants are stored in the top 2K of the reserved user block memory area 0x1C00–0x1FFF. 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 ADC_IN0 to ADC_IN7
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