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Re: TFMSX Arrives
Posted: 22 Sep 2021 17:44
by terriblefire
I’ve done some work on this.
May need some input from @arkadiusz.makarenko..
Re: TFMSX Arrives
Posted: 22 Sep 2021 17:57
by arkadiusz.makarenko
Happy to help :)
Re: TFMSX Arrives
Posted: 22 Sep 2021 21:26
by terriblefire
I'm thinking a bit of up front design for the keyboard this time...
The Keyboard on the MSX is basically 16 x 8 bit rows... if we have the CPLD specifiy the row on port C then put the data on port B and strobe a line. The CPLD can hold the data i think.
I'm also going to wire up pin 21 to the audio line incase we find a way to do SCC in the ARM.
Re: TFMSX Arrives
Posted: 22 Sep 2021 21:28
by arkadiusz.makarenko
terriblefire wrote: 22 Sep 2021 21:26
I'm thinking a bit of up front design for the keyboard this time...
The Keyboard on the MSX is basically 16 x 8 bit rows... if we have the CPLD specifiy the row on port C then put the data on port B and strobe a line. The CPLD can hold the data i think.
I'm also going to wire up pin 21 to the auto line incase we find a way to do SCC in the ARM.
SCC?
Re: TFMSX Arrives
Posted: 22 Sep 2021 22:11
by terriblefire
https://www.faq.msxnet.org/scc.html
Its like an early wavetable with predefined sounds. There will be emulations available.
Re: TFMSX Arrives
Posted: 23 Sep 2021 07:55
by arkadiusz.makarenko
Fascinating chip. It is sound chip and data mapper.
It sounds great as well.
Re: TFMSX Arrives
Posted: 23 Sep 2021 11:20
by terriblefire
I've made the changes for the Rev1. I want to verify the changes for the RGB connector. Right now i have it working on the CPC+ (Plus version) cable which i think i should switch to the Spectrum RGB.
Re: TFMSX Arrives
Posted: 23 Sep 2021 11:51
by terriblefire
Also does anyone know if there is an SMD RTC clock compatible with the RP5C01
Re: TFMSX Arrives
Posted: 23 Sep 2021 14:04
by Gooeyblob
RF5C01A...?
Re: TFMSX Arrives
Posted: 23 Sep 2021 14:16
by terriblefire
Yeah i cant find it available anywhere. ..