dsPIC33CK Low-Voltage Motor Control Board User’s Guide
DS50002927A-page 16 2020 Microchip Technology Inc.
2.2.2 UART Interface Header (J3)
A 5-pin header, J3, is a UART interface provided to connect an external UART-USB
converter or for accessing UART signals by disabling the MCP2200 device (see U13
in Figure A-5). Ta b l e 2- 4 summarizes the pin functions of connector J3.
TABLE 2-4: PIN DESCRIPTION – CONNECTOR J3
2.2.3 USB Serial Interface (J6)
The Motor Control Board uses an on-board MCP2200 device (see U13 in Figure A-5)
as a bridge between the UART and USB (see Table 2-5) for providing the host PC
interface.
TABLE 2-5: PIN DESCRIPTION – CONNECTOR J6
2.2.4 Hall Sensor Interface Connector (J7)
Hall sensors are used to detect the rotor position and speed of the motor. Connector
J7 can be used to interface the Hall sensor outputs with the Motor Control Board,
enabling sensor-based BLDC motor control applications. Table 2-6 shows the pin
descriptions of connector J7. The connector provides two supply outputs, +5V and
+3.3V, which can be used as input supplies of the Hall sensors based on the sensor
specification.
TABLE 2-6: PIN DESCRIPTION – CONNECTOR J7
Pin # Signal Name Pin Description
1 +3.3V +3.3V Supply
2 DEBUG_TX UART Transmit Pin of dsPIC
®
DSC
3 DEBUG_RX UART Receive Pin of dsPIC DSC
4 DGND Digital Ground
5 MCP2200_RST Setting this Pin Low (connecting to Ground) will
Disable the MCP2200 (U13)
Pin # Signal Name Pin Description
0 No Connection Body is Connected to Digital Ground
1 5V_USB USB +5 V
DC
2 UART_USB_N USB Data-
3 UART_USB_P USB Data+
4 No Connection —
5 GND Digital Ground
Pin # Signal Name Pin Description
1 +5V +5V Supply to Hall Sensors
2 +3.3V +3.3V Supply to Hall Sensors
3 DGND Digital Ground
4 HA Hall Sensor A Feedback from the Motor
5 HB Hall Sensor B Feedback from the Motor
6 HC Hall Sensor C Feedback from the Motor
To Next Page
Loading...
Need help?
General