Carnivore2 : First impressions and bugs...

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By Alexey

Guardian (1652)

Alexey's picture

16-05-2018, 09:58

I am against publishing anything untested in our repository. If you would like to offer help in testing, please contact me directly.

By Wolverine_nl

Paladin (933)

Wolverine_nl's picture

17-05-2018, 16:45

What is the easiest way to update the Carnivore2?
I did solder audio-out on it, which works great, when doing that I saw also some other solder options left.
I am reading in the readme some info on it, but it is abacadabra for me in pure text, I am more a visual person. Cool
So do i need to solder a JTAG on it? Or is that even too much?
I also read I need to power it with 5 V for the updating to work. Anybody got some tips on how they did that? Would a USB power from the USB port from a PC work?

By Pencioner

Hero (653)

Pencioner's picture

17-05-2018, 19:56

@Wolverine_nl : USB power will surely work (i use homebrew cable, it was old broken USB keybpard - i cut off the usb connector, and soldered another wires to GND and +5V). Be careful with +/- polarity - i recheck few times if it is correct btw. And you don't even need to solder the JTAG to board - with some accuracy it is possible to do with such thing - you just have to cut off 5x2 part out of it, connect to USB blaster cable, and push slightly with your hands into board JTAG connector holes. That's how i do fw update for Carnivore now (Alexey taught me). Of course you will need USB Alter blaster + drivers, Quartus software installation (and strong balls if you do this for first time)

By Alexey

Guardian (1652)

Alexey's picture

17-05-2018, 22:49

Here's a short video on how I upload the firmware without soldering the JTAG connector. The procedure is described in the readme file. But please make sure that you know what you are doing or you risk getting a brick instead of Carnivore2.

https://www.youtube.com/watch?v=oVB-fZyMB2E

The cable that I use to connect the power is a cut USB cable with 2 female pin connectors on one end and normal USB plug on the other end. The USB2 power from PC is enough for the cartridge to get updated.

By Wolverine_nl

Paladin (933)

Wolverine_nl's picture

18-05-2018, 09:38

Thanks for the replies, i will do some research to really be sure, I have a multi-meter and all the necessary tools. I also have a USB blaster, never used it, but a buddy of mine knows how the software works.

By Wolverine_nl

Paladin (933)

Wolverine_nl's picture

18-05-2018, 15:53

I found a USB plug -> +5V and GND, which is meant for arduino/raspberry stuff, but should be fine for it. Good and clear video Alexey Smile I am very happy with the Carnivore2.

By Pablibiris

Paragon (1677)

Pablibiris's picture

18-05-2018, 18:56

I always update the firmware with the cartridge running in my MSX.

By JamesBurton

Resident (33)

JamesBurton's picture

20-05-2018, 12:05

Hi Alexey,

Could you please indicate which assembler you use to compile the boot block? Maybe this has been stated before but I haven't found anything about it so far...

Thank you in advance!

Carnivore2 rocks Smile

By Alexey

Guardian (1652)

Alexey's picture

20-05-2018, 15:46

We are using this one:

AS80 [1.42] Assembler for 8080/8085/Z80 microprocessor.
Available from: http://www.kingswood-consulting.co.uk/assemblers/

By JamesBurton

Resident (33)

JamesBurton's picture

20-05-2018, 16:07

Alexey wrote:

We are using this one:

AS80 [1.42] Assembler for 8080/8085/Z80 microprocessor.
Available from: http://www.kingswood-consulting.co.uk/assemblers/

It worked like a charm, thanks a lot :)

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