PIC32MX have three special function registers (SFR) for IO. This registers that allow for atomic updating (which takes fewer clock cycles).

SET:

The selected bits are set or equal to 1. Example TRISBSET = 0x00F0 will set bits 4, 5, 6 and 7.

CLR:

The selected bits are cleared or equal to 0. Example TRISBCLR = 0x00F0 will clear bits 4, 5, 6 and 7.

INV:

The selected bits are inverted/toggled (1 to 0 or 0 to 1). Example TRISBINV = 0x00F0 will invert/toggle bits 4, 5, 6 and 7.

References:

Reference Manual (Section 2)

NU32: Digital Input and Output

Normally happen when you compile the source code.

“warning: no newline at end of file”
This is not an error.. just a warning. To fix it:

1) Open the related file

2) Go to the last line of the file and hit enter to insert the blank line

This is the lowest cost development tool for PIC32MX. It comes with PIC32MX795F512L. This PIC32 running at 80 MHz with 512K Flash, 128K RAM, 8 ch. DMA + 4 ch. Whereas, DMA dedicated to USB and CAN. The board contains everything need to develop USB embedded host/device/OTG applications by combining this board with Microchip’s free USB software.

PIC32MX Block Diagram: