Flowire Software Upgrade Procedure

This is a step by step guide to upgrading the software in Flowire through the serial interface.

Requirements

• Windows PC
• TFTPS server, for example Tftpd32 or Tftpd64 by Ph. Jounin (http://tftpd32.jounin.net)
• Telnet software, for example PuTTY by Simon Tatham (http://www.chiark.greenend.org.uk/~sgtatham/putty/)
• Simple network switch
• 2 Ethernet cables
• Special USB-Serial cable with JTAG connector
• Flowire unit
• Flowire power supply

Create the special USB-Serial cable

• You need an RS232 cable with 3,3V TTL level. For example: http://au.element14.com/ftdi/ttl-232r-3v3/connector-type-a/dp/1329311
• Create an adapter cable to connect to the debug connector on Flowire: