Search found 169 matches

by PiyoTaro
Wed Jun 26, 2019 12:14 pm
Forum: Off-Topic
Topic: New FPGA computer MSX-SM - "MSX without misery" by VictorTrucco
Replies: 1
Views: 59

Re: New FPGA computer MSX-SM - "MSX without misery" by VictorTrucco

There was a comment in the comment section of the news article whether it was "ALTERA EP4CE22". I trusted it and edited the first post. The FPGA training board I got when I purchased "UnAmiga" had 32 MB of SDRAM, but this time it seems to have 256 MB. I'm interested in future FPGA implementation whe...
by PiyoTaro
Tue Jun 25, 2019 1:57 pm
Forum: Off-Topic
Topic: New FPGA computer MSX-SM - "MSX without misery" by VictorTrucco
Replies: 1
Views: 59

New FPGA computer MSX-SM - "MSX without misery" by VictorTrucco

VictorTrucco will start pre-sales of new FPGA computer "MSX-SM" hardware at its site. Original News (MSX.ORG): (English site)https://www.msx.org/forum/msx-talk/hardware/victor-trucco-announced-msx-sm Sales site: (Portuguese site)http://victortruccocom.e-com.club/msx-sm Demo video (with FM sound): h...
by PiyoTaro
Mon Jun 24, 2019 5:38 pm
Forum: ZX Spectrum (and Clones)
Topic: 2nd / Design a small Sound card for Next
Replies: 1
Views: 194

Re: 2nd / Design a small Sound card for Next

The first post of this thread is to post information about the new sound chip YMF288 and my prototype board. Therefore I edited the post. --- I ordered a new "prototype board" and finished the PCB board in the first week, but the status of the manufacturing process such as "part mounting" has not ch...
by PiyoTaro
Mon Jun 24, 2019 12:04 pm
Forum: ZX Spectrum Next
Topic: Musical potential of the NEXT.
Replies: 70
Views: 15307

Re: Musical potential of the NEXT.

So let's review the sound cards that have been released in the world of ZXSpectrum and compatible machines. There were many things not found in Google search, including the official site of "TurboSound" . In the future, wiki will be expanded, and 'the type of expansion bus' supported by the sound c...
by PiyoTaro
Mon Jun 24, 2019 11:57 am
Forum: ZX Spectrum Next
Topic: Musical potential of the NEXT.
Replies: 70
Views: 15307

Re: Musical potential of the NEXT.

So let's review the sound cards that have been released in the world of ZXSpectrum and compatible machines. There were many things not found in Google search, including the official site of "TurboSound" . In the future, wiki will be expanded, and 'the type of expansion bus' supported by the sound c...
by PiyoTaro
Mon Jun 24, 2019 11:53 am
Forum: ZX Spectrum Next
Topic: Musical potential of the NEXT.
Replies: 70
Views: 15307

Re: Musical potential of the NEXT.

A post to this thread shows that "the hardware development of ZX SpectrumNext is already over", but it seems to be be only an individual opinion (and all relevant remarks he posted here have been erased.). -Posting to the thread "TurboSound Control Interface" A reply to me was like that, but a few d...
by PiyoTaro
Thu Jun 20, 2019 7:28 pm
Forum: ZX Spectrum Next
Topic: TurboSound Control Interface
Replies: 7
Views: 369

Re: TurboSound Control Interface

The circuit released by VELESOFT as "Turbo Sound" seems to be a product attached to the sound chip of ZXSpectrum, and it seems that the address decoder circuit of the ZXSpectrum version is not included. The complete schematic at the bottom of the homepage does not seem to be for Sinclair. https://v...
by PiyoTaro
Sun Jun 16, 2019 9:57 am
Forum: ZX Spectrum (and Clones)
Topic: 2nd / Design a small Sound card for Next
Replies: 1
Views: 194

2nd / Design a small Sound card for Next

PCB board module does not work 1. "Sound card does not respond" is "conflict with internal peripherals" At the end of May 2019, the official wiki item "BOARD FEATURE CONTROL" was updated and the article "A note on partial decoding" was added. https://specnext.dev/wiki/Board_feature_control 2. "Stop...
by PiyoTaro
Sun Jun 16, 2019 9:47 am
Forum: ZX Spectrum (and Clones)
Topic: Design a small Sound card for Next
Replies: 23
Views: 2073

Re: Design a small Sound card for Next

PCB board module does not work 1. "Sound card does not respond" is "conflict with internal peripherals" At the end of May 2019, the official wiki item "BOARD FEATURE CONTROL" was updated and the article "A note on partial decoding" was added. https://specnext.dev/wiki/Board_feature_control 2. "Stop...
by PiyoTaro
Tue Jun 04, 2019 6:41 pm
Forum: ZX Spectrum (and Clones)
Topic: Design a small Sound card for Next
Replies: 23
Views: 2073

Re: Design a small Sound card for Next

PCB board module does not work Supplement 2019/6/2 Address decoding problem. The output of HC138 was changed, and the operation was confirmed with the 8-bit I/O address '$ F7'. Replace the above address '$F5' as '$xxF7'. --- The remaining work is "to lower the amplification gain of the Amplifier" f...