Embedded Systems Design with the Atmel AVR Microcontroller Part II
Embedded Systems Design with the Atmel AVR Microcontroller Part II
Embedded Systems Design with the Atmel AVR Microcontroller Part II
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
VDD<br />
1M<br />
sys reset<br />
1.0 uF<br />
ZTT 10MHz<br />
resonator<br />
1-(TO) PB0<br />
2-(T1) PB1<br />
3-(AIN0) PB2<br />
4-(AIN1) PB3<br />
5-(SS) PB4<br />
6-(MOSI) PB5<br />
7-(MISO) PB6<br />
8-(SCK) PB7<br />
9-RESET<br />
10-Vcc<br />
11-GND<br />
12-XTAL2<br />
13-XTAL1<br />
14-(RXD0) PD0<br />
15-(TXD0) PD1<br />
16-(RXD1) PD2<br />
17-(TXD1) PD3<br />
18-(OC1B) PD4<br />
19-(OC1A) PD5<br />
20-(ICP) PD6<br />
enable<br />
I<br />
7404<br />
ATmega164<br />
PORTB<br />
PORTD<br />
V DD<br />
R<br />
PORTA<br />
PORTC<br />
PA0 (ADC0)-40<br />
PA1 (ADC1)-39<br />
PA2 (ADC2)-38<br />
PA3 (ADC3)-37<br />
PA4 (ADC4)-36<br />
PA5 (ADC5)-35<br />
PA6 (ADC6)-34<br />
PA7 (ADC7)-33<br />
AREF-32<br />
AGND-31<br />
VDD<br />
AVCC-30<br />
PC7 (TOSC2)-29<br />
PC6 (TOSC1)-28<br />
PC5-27<br />
PC4-26 data<br />
PC3-25<br />
PC2-24<br />
PC1-23<br />
PC0-22<br />
PD7 (OC2)-21<br />
RS:command/data<br />
enable<br />
Solid State Relay<br />
R G<br />
G<br />
Vcc<br />
8.4. CIRCUIT DIAGRAM 253<br />
10K<br />
data<br />
GND-1<br />
VDD-2<br />
Vo-3<br />
RS-4<br />
R/W-5<br />
E-6<br />
DB0-7<br />
DB1-8<br />
DB2-9<br />
DB3-10<br />
DB4-11<br />
DB5-12<br />
DB6-13<br />
DB7-14<br />
optical<br />
encoder<br />
-<br />
LM324<br />
+<br />
M<br />
D<br />
MOSFET<br />
S<br />
threshold<br />
detector<br />
AND671GST<br />
DC motor<br />
supply voltage<br />
I LOAD<br />
protection<br />
diode<br />
Figure 8.5: Circuit diagram for a 24 VDC, 1500 RPM motor equipped <strong>with</strong>a3channel optical encoder.
Change language