PIC32 Microcontoller Version 2

Documentation for the complete BV513 system including Data Sheet

The BV513_v2 is a PIC32 Based microcontroller with the advantage of being able to run ByPic, an operating system written especially for the BV513. It can of course be programmed in C. It has a USB interface that configures as a COM port and provides power so it is ready to run.

This microcontroller is supplied with no sockets fitted. This is because there are so many options, sockets can be purchased separately.

Some socket examples (not supplied)

Advantages

• PIC32 based - has familiar architecture
• Runs ByPic - easy to program, ideal for learning
• On Board SD Card - for storing programs and data, 1 or 2 GB *
• FAT16 & FAT32 filing system - full compatibility with PC, accepts the newer HC SD cards *
• Up to 2,000,000 Baud - for high speed data transfer
•  Task Scheduler - run background tasks and capture events
• User programs can run from SD Card, RAM or Flash
• Update firmware via USB - no need for specialised programmer
•  Support for second SD Card - greater storage and flexibility
•  14k user RAM & 250k User Flash available (values approximate)

* The interface uses SPI and not all manufacturers support this on the micro SD cards, it is usually the older smaller 1-2GB cards that support it. The PIC32-Basic will support up to 8GB provided the card has an SPI interface and all larger normal size cards support this. If you need larger storage then use the BV410, second SD socket that will take the larger card.

1. USB interface, this is the main communication channel, from here programs can be run, written to RAM or Flash. The USB becomes a COM port.
2. Power selector, the board can be powered from the USB of from an external DC source of up to 10V.
3. Optional external power input for when the board is not powered by the USB, ideal for stand alone applications.
4. Micro SD Card socket to take normal or the newer HC cards, FAT16 & Fat32. On board is an operating system that enabled the creation / deletion etc. of files, commands for example like 'DIR', 'DEL' etc. Files can be created on this system and read on a PC or vice-versa.
5. A choice of socket options, shown is the experimenters version with sockets that can readily take hookup wire for breadboarding, the BV513 also comes with sockets to make up any desired combination. The user fits the sockets.
6. General purpose I2C and UART interface with power, also available at the main sockets but here as well for convenience.
7. Second SD Card interface, can take a standard SD Card and the operating system will recognise that it is there. See the eBay shop for a card that plugs directly into this socket.
8. Clock crystal for the low power oscillator and real time clock.
9. PIC32MX340F512 Microcontroller uses familiar PIC architecture and has 512k Flash, 32k RAM. The Flash contains over 200k of operating system and application
10. Programming connector. All programs including Flash updates can be carried out via the USB there is no need for an additional programmer. However this interface is provided for the PICKit2 programmer
11. Standard FTDI UART chip to provide a virtual COM port interface, drivers are built into some Linux systems and are freely available for MAC and PC.
12. 5V and 3V3 voltage regulators. The PIC does not use 5V and so this has been provided for 5V peripherals that may be attached. The regulators also provide short circuit protection for the host USB.

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