Embedded Files
A flash RAM drive must support a file system and an appropriate USB API functions for an operating system to recognize it as a flash drive. I used FAT12 file system image, which was more than enough for a flash RAM drive with about 1 MB storage space. I reserved the rest of PIC32MZ2048ECH100 flash RAM for program code. However, with a smaller flash RAM drive (around 30 kB) it is also possible to use PIC32MX270F256B microcontroller as a flash RAM drive...
Get PIC32MZ2048ECH100 USB flash drive.zip with the HEX file from Downloads section.
ALSO READ:
- PIC32MZ2048ECH100 - 100-pin PIM basic USB circuit
- How to make a large (flash) RAM drive with 1 MB or more inside a microcontroller?
- How to get PIC32MZ2048ECH100 working on USB?
- What are PIC32MZ2048EC advantages?
- How to connect PIC32MZ2048ECH100 PIM to a standard PCB or Velleman K8055N-2 experiment board?
Having a (flash) RAM disk in your microcontroller may greatly simplify its use through an operating system like Windows 7 or newer. A configuration file on a microcontroller flash RAM drive may be altered using an arbitrary text (*.txt) editor, not just by a specialized application. The (flash) RAM drive may also provide a standard communication interface to various Windows applications without USB APIs (Application Program Interfaces).
PIC32 microcontrollers are developed around a 32-bit MIPS CPU core that was once used in UNIX workstations. It is not surprising though that Microchip 32-bit microcontrollers with large enough RAMs and flash RAMs (kind of EEPROM) are starting to support this functionality again.
Yes, it can!
Click on the schematic to enlarge it.
Page updated
Google Sites
Report abuse