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avatar_Neurox66

CPCRadio module

Started by Neurox66, 18:25, 28 April 24

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McArti0

@p135 
Do you have audio connected to pin 1 of the expansion port so that you can listen to the radio in the CPC speaker?
CPC 6128, Whole 6128 and Only 6128, with .....
NewPAL v3 for use all 128kB RAM by CRTC as VRAM
TYPICAL :) TV Funai 22FL532/10 with VGA-RGB-in.

p135

At the moment audio output is only through the 3.5mm jack, I guess this is something I can add in a future revision of the board maybe with an extra jumper to enable or disable it, of course output through the speaker would be in mono.

I'm not sure if it's as easy as adding a connection between the output of the radio chip and pin 1 of the expansion port, I think a few components are required to mix the external signal with the audio coming from the CPC but it's definitely doable, I'll have a look at the schematics later

McArti0

Quote from: p135 on 14:40, 01 June 24I think a few components are required
I think one resistor. :D
CPC 6128, Whole 6128 and Only 6128, with .....
NewPAL v3 for use all 128kB RAM by CRTC as VRAM
TYPICAL :) TV Funai 22FL532/10 with VGA-RGB-in.

p135

Quote from: McArti0 on 17:26, 01 June 24
Quote from: p135 on 14:40, 01 June 24I think a few components are required
I think one resistor. :D
I'll do a quick test just to be sure but that would be a pretty easy mod even for existing boards, one could just solder one side of the resistor to pin 1 which is pretty easy to spot and then a wire from the resistor to the left or right channel pin of the 3.5mm jack

GUNHED

Hello! Good to see you here!  :) :) :)

Allow me two questions: Could you tell us which I/O addresses you use for the Radio module? 
(So I can see, if there is any collision with other hardware.)

And how much would be one Radio Module with MX4 adapter and shipping to Europe (Germany in this case)?
http://futureos.de --> Get the revolutionary FutureOS (Update: 2023.11.30)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

p135

The address range is $FF00 to $FFFF

Tracked shipping to most EU countries is 12€, I usually put these modules in a small package instead of an envelope so I can package them well with some extra bubble wrap

Price for the new boards with the MX4 compatible connector is still 50€, you mentioned an adapter but I actually made a few changes to the layout of the PCB so no adapter is required. I can either solder a 50 pin edge connector or the 50 pin male header that fits into an MX4 female slot. Since I'm only making a few of these they're all hand assembled.

Of course if you want the MX4 version I will send you one with the right connector :)

Do I have to open a different thread in the Classifieds section?

GUNHED

Ah, no. Without an adaptor it's the best solution. You did well in allowing to have a direct MX4 / IDE connector, to be able to place the care on Mother X4 boards.  :) :) :)
http://futureos.de --> Get the revolutionary FutureOS (Update: 2023.11.30)
http://futureos.cpc-live.com/files/LambdaSpeak_RSX_by_TFM.zip --> Get the RSX-ROM for LambdaSpeak :-) (Updated: 2021.12.26)

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