Electronic – Problems programming LPC1343 microcontroller in Ubuntu

What is the chipset that is used [in the] [Yún] board for USB communication [...] ?

The Arduino Yún has two USB interfaces:

• A USB interface built in to the ATmega32U4-AU which manages serial comms.
• A USB 2.0 hub based on an AU6350

See schematic

The ATmega32U4 provides a dedicated UART TTL (5V) serial communication. The 32U4 also allows for serial (CDC) communication over USB and appears as a virtual com port to software on the computer. The chip also acts as a full speed USB 2.0 device, using standard USB COM drivers.

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The Yún appears as a generic keyboard and mouse, and can be programmed to control these input devices using the Keyboard and Mouse classes.

See Arduino Yún

The file is a straight binary file. So, the first four bytes are the initial stack pointer value, the next four bytes are the initial program counter, and the interrupt vectors follow. As an example, here are the first 32 bytes of a known-good file:

00 08 00 10 99 3c 00 00 21 40 00 00 25 40 00 00
29 40 00 00 2d 40 00 00 31 40 00 00 9a 7a fe ef

The word stored at address 0x1C (seventh word) is a checksum of the first six words. See section 21.7 in the LPC13xx User's Manual for details. For the LPC1343 the file is exactly the same size as the flash: 32768 bytes.