M I K R O E L E K T R O N I K A S O F T W A R E A N D H A R D W A R E S O L U T I O N S F O R T H E E M B E D D E D W O R L D
dsPICPRO
USB
3
dsPICPRO3 User
’
s Manual
MikroElektronika
Development tools
2
20
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page
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RS-232 communication enables point-to-point data transfer. It is commonly used in data
acquisition applications for data transfer between microcontroller and PC. Since the volt-
age levels of microcontroller and PC are not directly compatible with each other, a level
transition buffer such as the MAX232 must be used.
RS-232 COMMUNICATION
Figure 23.
RS232 connectors
dsPICPRO3 development board has two RS-232 communication devices, RS-232 A and RS-
232 B. Tx and Rx lines of RS232A are connected to MCU pins via jumpers J13 and J12. Tx
and Rx lines of RS232B are connected to MCU pins via jumpers J15 and J14.
ENABLED
ENABLED
RS232
RS232
