Table of Contents
Advertisement
7/30/2019
#pragma config FNOSC =
#pragma config FSOSCEN =
#pragma config POSCMOD =
#pragma config OSCIOFNC =
#pragma config FPBDIV =
#pragma config FPLLIDIV =
#pragma config FPLLMUL =
#pragma config FPLLODIV =
2. Power Supplies
The Basys MX3 requires a 5-volt power source to operate. This power source can come from the Programming / Debugging USB port
(J12), the USB-UART (J10), or from an external 5 Volt DC power supply that's connected to Power Jack (J11). These three power inputs are
connected together through Schottky diodes to form the primary input power network, VIN, which is used to power the onboard regulators
and the majority of the onboard peripherals. No jumper is required to select the input power source. The board will automatically power on
while the Power Switch (SW8) is in the on position and power is present on any of the power inputs.
A power-good LED () (LD11), driven by the output of the 3.3 volt regulator (LMR10515), indicates that the board is receiving power and
that the on-board supplies are functioning as expected. An overview of the Basys MX3 power circuit is shown in Fig. 2.1.
The USB port(s) can deliver enough power for the vast majority of designs. However, a few demanding applications, including any that drive
multiple peripheral boards, may require more power than a USB port is capable of providing. In these instances an external power supply
can be used. Due to their high current demands motors and servos cannot be powered through either of the USB ports, and may only be
powered through an external supply.
An external power supply can be used by plugging into Power Jack J11. The supply must use a coaxial, center-positive 2.0 mm internal-
diameter plug, and provide a voltage of 5 Volts DC (4.75 Volts minimum, 5.5 Volts maximum). The supply should provide a minimum
current of 2 amps if servos are to be used. Ideally, the supply should be capable of provide 20 Watts of power (5 Volts DC, 4 amps). Many
suitable supplies can be purchased from Digilent or other catalog vendors.
https://reference.digilentinc.com/reference/microprocessor/basys-mx3/reference-manual?_ga=2.68739409.1349070004.1564406803-1961480359....
Basys MX3 Reference Manual [Reference.Digilentinc]
FRCPLL
OFF
XT
ON
DIV_1
DIV_2
MUL_20
DIV_1
12/52
Advertisement
Table of Contents
Need help?
Do you have a question about the Basys MX3 and is the answer not in the manual?
Questions and answers
I m not able to use the basys mx3 with recent version of mplabx (6.x). The debugging tool does not show in the list. U of Sherbrooke
If the Digilent Basys MX3 board does not appear in the list of debugging tools in MPLAB X version 6.x, you can try the following steps:
1. Ensure the board is connected via the DEBUG USB connector.
2. Verify that the correct device (PIC32MX370F512L) is selected during project setup.
3. Make sure all required drivers are installed for the Basys MX3 board.
4. If the tool still does not appear, manually select it under the Licensed Debugger group.
5. If unavailable, consider using MPLAB X IPE to program/erase the microcontroller, though it does not support debugging.
If the problem persists, the version of MPLAB X may not fully support the Basys MX3 debugger integration. In this case, try using a different MPLAB X version or contact support for updates.
This answer is automatically generated