[Swansea Hackspace] Rumber

[Ceri Clatworthy]

Don't want to say I told you.so .....
But I did recommend removing the 2 resistors and testing the two separate
micros. ..
 On 7 Mar 2015 18:57, "Tom Lake" <tswsl1989 at sucs.org> wrote:

> Quick progress report from Tim and myself:
>
> On 06/03/15 16:06, Justin Mitchell wrote:
>
>> suggestions are that the chip should come with the DFU bootloader
>> pre-installed, in which case you use dfu-programmer to load the
>> usb-serial code.
>>
> The smaller of the two chips has been flashed using dfu-programmer (v0.7.1
> works). It needed a forced erase cycle before it would update
>
>  For reference: the previous chip, when wired in ISP more did not answer
>> to avrdude, giving only 0xFFFF as answers. whereas the 2560 chip would.
>>
>
> We also reflashed the 2560 with the arduino bootloader using my arduino,
> but cannot get it to talk to a PC directly over USB.
>
> Sending data from PC to the board makes the TX light on the board flash,
> but no activity seen from the RX light.
>
> The only suggestion from us is that there might be a bad connection
> between the two ICs on the Rumba board. Might be something to follow up on
> Monday.
>
> Enjoy the rest of the weekend!
>
> - Tom
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