Microchip Technology PIC32CM LE00, Руководство пользователя

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4.4 Embedded Debugger Implementation
The Curiosity Pro contains an Embedded Debugger (EDBG) that can be used to program and debug the PIC32CM
LE00/LS00/LS60 using Serial Wire Debug (SWD). The Embedded Debugger also includes a virtual COM port
interface over UART, a Data Gateway Interface (DGI) over SPI, TWI (I
2
C), and four of the PIC32CM LE00/LS00/LS60
GPIOs.
MPLAB X IDE can be used as a front end for the Embedded Debugger.
4.4.1 Serial Wire Debug (EDBG SWD)
The Serial Wire Debug (SWD) uses two pins to communicate with the target. For additional information on how to
use the programming and debugging capabilities of the EDBG, refer to the
Embedded Debugger User Guide .
Table 4-23. Serial Wire Debug (SWD) Connection
Schematics Text MCU Pin Function Shared Functionality
[EDBG_SWD]
TARGET_CHIP_RESET
/RESET TARGET_RESETN Cortex Debug, PICkit 4 Interface,
Arduino, RESET button
[EDBG_SWD] SWCLK PA30/SWCLK SWCLK Cortex Debug, PICkit 4 Interface
[EDBG_SWD] SWDIO PA31/SWDIO SWDIO Cortex Debug, PICkit 4 Interface
4.4.2 Virtual COM Port (EDBG CDC)
The Embedded Debugger acts as a virtual COM port gateway using any one of the PIC32CM LE00/LS00/LS60
UARTs. For additional information on how to use the virtual COM port, refer to the
Embedded Debugger User Guide .
Table 4-24. Virtual COM Port (CDC) Connection
Schematics Text MCU Pin Function Shared Functionality
[EDBG_UART] TX PB21 SERCOM3/PAD[1] UART RX EXT2
[EDBG_UART] RX PB20 SERCOM3/PAD[0] UART TX EXT2
4.4.3 Data Gateway Interface (EDBG DGI)
The Embedded Debugger features a Data Gateway Interface (DGI) using either a SPI or I
2
C. The DGI can be used
to send data from the PIC32CM LE00/LS00/LS60 to the Host PC.
For additional information on how to use the DGI interface, refer to the Data Gateway Interface User’s Guide and
Embedded Debugger User Guide .
Table 4-25. DGI Interface (DGI) Connections When Using SPI
Schematics Text MCU Pin Function Shared Functionality
[DGI_SPI SS] PC24 GPIO EXT2
[DGI_SPI MOSI] PB24 SERCOM4/PAD[0] MOSI EXT2
[DGI_SPI MISO] PC25 SERCOM4/PAD[3] MISO EXT2
[DGI_SPI SCK] PB25 SERCOM4/PAD[1] SCK EXT2
Table 4-26. DGI Interface (DGI) When Using I
2
C
Schematics Text MCU Pin Function Shared Functionality
[DGI_I2C SCL] PB31 SERCOM5/PAD[1] I²C SCL EXT1, EXT2, EXT3, Arduino, mikroBUS
[DGI_I2C SDA] PB30 SERCOM5/PAD[0] I²C SDA EXT1, EXT2, EXT3, Arduino, mikroBUS
PIC32CM LE00/LS00/LS60
Hardware User Guide
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User Guide
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