2 replies to this topic

[Snympi]

Hi guys

Since most of us don't have native COM ports on our PCs anymore I also got the little SparkFun FTDI TTL UART that allows me to program my Mini via USB. This all works very well. In the past I had to reflash my regular Netduinos a couple of times using Samba and MFDeploy to magically resurrect them. So I thought I'd better figure the process to reflash the Minis out before I need it urgently - especially with the equipment I've got.

I found a couple of nice sets of instructions how to reflash Minis (http://financecoding...-netduino-mini/ & http://forums.netdui...lash-your-mini/) but both use USB -> RS232 or regular RS232 COM ports to get Samba to talk to the Mini. Is there a way to use the TTL UART to flash the board without using pins 1 & 2 but rather pins 11 & 12 for the whole process? I'm not sure if the choice of TTL or RS232 firmware will make a difference?

Thanks for everyone contributing to such a great community.

Cheers

Pieter

[Chris Walker]

Hi Pieter, The SAM7X microcontroller used on the Netduino Mini can be reflashed (from complete erasure) using USB or "the hardware debug serial port". On the Mini, that serial port is the RS232 port. On the Netduino it's the serial port on pins D0/D1. Generally speaking, it's not possible to use SAM-BA with the Netduino Mini using TTL. We recommend using the RS232 connection if you want to do that. Chris

[Snympi]

Hi Chris After reading a couple of other posts that asked similar questions I got the impression that only the RS232 can be used with Samba. Thanks very much for confirming it - always better from the horse's mouth Thanks for the excellent support - another 2 Minis are on the way for my next project. Pieter