ADLINK Technology CM1-86DX2, Техническое руководство

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64 Using the Module
/
*##################################################################
##############
# 7. if ADC_STATUS bit 0 ==1 then read ADC_DATA as long as ADC_DATA[15:13] matches
# the selected ADC channel
# 8. save ADC_DATA[10:0] & ADC_VAL_MASK as ADC data.
########################################################################
########*/
capturedAdcRaw = inw ( ADC_DATA );
capturedAdcChannel = ( capturedAdcRaw >> 13 ) & ADC_CH_MASK ;
capturedAdcData = ( capturedAdcRaw & ADC_VAL_MASK );
capturedAdcValue = ( (double) capturedAdcData * 3.3 / 2048 ) - ( OFFSET/1000 );
}
printf( " Captured channel = 0x%02x\n", capturedAdcChannel );
printf( " Captured Data = 0x%04x\n", capturedAdcData );
printf( " Resulting value = %.3f\n\n", capturedAdcValue );
return 0 ;
}
//
###################################################################
#############
// END
4.6 Memory Address Map
Please note that this source code example is provided for a system running Linux. For
other operating systems it may be necessary to adapt the source code regarding include
files or headers and the syntax of I/O out commands because Linux is using outb(value,
address) instead of outb(address, value).
Table 4-3: Memory Map
Address range
(dec)
Address range
(hex)
Size Description
4177920 –
4194303K FF00:0000 –
FFFF:FFFF 16384K High BIOS Area
4173824K –
4173887K FEC0:0000 -
FEC0:FFFF 20480K APIC Configuration Space
1048576K –
4194303K 4000:0000 –
FFFF:FFFF 3145727K PCI Memory Address Range
1024K -1048575K 0010:0000 –
3FFF:FFFF 1047551K Extended memory (RAM)
(Top of memory)
960K – 1024K F0000 – FFFFF 64K System BIOS
896K - 960K E0000 - EFFFF 64K Extended (4x 16K) System BIOS Area
768K - 896K C0000 - DFFFF 128K ISA (8x 16K) Expansion Area
640K - 768K A0000 – BFFFF 128K Standard PCI/ISA Video Buffer Area
0K - 640K 0 – 9FFFF 640K DOS Area