mikroElektronika UNI-DS6, Руководство пользователя

Страница: 11 / 25

11
UNI-DS6
MikroElektronika
page
6. ADC module
The ADC module is used to convert an analog voltage level into the appropriate 12-bit digital value� The analog voltage
is supplied via screw terminals CN15 and CN16� The voltage supplied via the VREF pin is used as a voltage reference�
In order to use this voltage, switch 8 on the DIP switch SW14 should be set to the ON position�
Figure 6-1 : ADC module
IND-
V
INA-
V
OUTD
V
OUTA
V
V
IND+ INA+
V
GND VCC
V
INC+ INB+
V
V
OUTC
V
OUTB
V
INC- INB-
V
U11
MCP6284
VCC-BRD VCC-BRD
VCC-BRD
VCC-BRD
C33
100nF
VCC-BRD
C32
100nF
R87
R86
R88
1K
R89
1K
1K
1K D12
1N4148
D16
1N4148
R90
100K
D2
1N4148
D14
1N4148
D11
1N4148
D15
1N4148
D1
1N4148
D13
1N4148
CN15
CN16
CN25
CH2
CH3
CH1
CH0
CH0-U12
CH1-U12 CH2-U12
CH3-U12
RA4 RE4
RE2
RA12
RB4 RF12
RB12 RG4
RC4 RG12
RC12 RH4
RD4 RJ4
RD12
USB-VBUS
RA6
RA14 RF6
RB6 RF14
RB14 RG6
RC6 RG14
RC14 RH6
RD6 RJ6
RD14
#RX232A
#TX232A
#SCL
#SDA
#SS1# SS1#
#SCK1 SCK1
#MISO1 MISO1
#MOSI1 MOSI1
USB-DP
RA0
CH0-U12
CH1-U12
CH2-U12
CH3-U12
RE0
RA8 RF0
RE6
RB0 RF8
RB8 RG0
RC0 RG8
RC8 RH0
RD0 RJ0
RD8
RA2
RA10 RF2
RF4
RB2 RF10
RB10 RG2
RC2 RG10
RC10 RH2
RD2 RJ2
RD10
RA5
RA13
RB5 RF13
RB13 RG5
RC5 RG13
RC13 RH5
RD5 RJ5
RD13
RA7
RA15 RF7
RF5
RF3
RB7 RF15
RB15 RG7
RC7 RG15
RC15 RH7
RD7 RJ7
RD15
#RX232B
#TX232B
#CS1#
#CS2#
#SS2# SS2#
#SCK2 SCK2
#MISO2 MISO2
#MOSI2 MOSI2
USB-DN
RA1 RE1
RA9 RF1
RE7
RE5
RE3
RB1 RF9
RB9 RG1
RC1 RG9
RC9 RH1
RD1 RJ1
RD9
RA3
RA11
RB3 RF11
RB11 RG3
RC3 RG11
RC11 RH3
RD3 RJ3
RD11
VCC-SW VCC-5V
CN20 CN21
VCC
Vref
AGND
CLK
DOUT
DIN
CS
CH0
CH1
CH2
CH3
NC
NC
DGND
U12
MCP3204
SW14
SW13
AREF
AREF
MOSI
ADC-CS#
MOSI2
#CS1#
#CS1#
#MISO2
SCK2
MOSI1
#MISO1
SCK1
SCK2 SCK1
MOSI2 MOSI1
SCK
MISO
MISO
MOSI
SCK
#SCK2 #SCK1
#MOSI2 #MOSI1
SCK
MISO
MOSI
ADC-CS#
VCC-5V
VCC-BRD
R4
R40 R38
R41 R39
R1
R2
R3
100
51 51
51 51
3x51
VIN
REF1
VOUT
MCP1541
GND
4.096V
E11
10uF
Figure 6-2: ADC module connection schematic
Serial SPI communication is used for data transfer between the ADC module and the microcontroller� In order to
establish connection between the ADC module and the microcontroller, it is necessary to set switches 1, 2 and 3 on the
DIP SW14 switch to the ON position� Optionally, you can use switches 4, 5 and 6 on the DIP switch SW14�