Search found 176 matches

by PiyoTaro
Wed May 22, 2019 11:02 am
Forum: ZX Spectrum Next
Topic: Help: Legacy peripherals do not work on my 2A board
Replies: 8
Views: 758

Legacy ROM mode help!/Re: Help: Legacy peripherals do not work on my 2A board

About the Legacy Machine mode. Please tell me how to make NMI/SD card drive work with Legacy 48K/128K ROM system. Does the current version of "TBBlue SD Distribution" not include software that supports "DivMMC"? The old "Startup Guide" describes how to deploy the esxdos site version of the software....
by PiyoTaro
Tue May 21, 2019 1:32 pm
Forum: ZX Spectrum (and Clones)
Topic: Design a small Sound card for Next
Replies: 23
Views: 2647

Re: Design a small Sound card for Next

Supplement. Information obtained from the connector's catalog. For the edge connector, "DIP SOLDER" type: One that plugs into the board and connects vertically with the motherboard. "CARD EXTENDER" type: Connect the board horizontally to the motherboard by pinching the board. I found a live video to...
by PiyoTaro
Sun May 19, 2019 9:12 am
Forum: Basic
Topic: Question: LoadSD at nextlib.bas / NextBuilder v5
Replies: 1
Views: 203

Question: LoadSD at nextlib.bas / NextBuilder v5

NextBuilder v5 Questions about the "nextlib.bas" library. Please answer my specific questions, as there is no such thing as a list of library functions. I want to create a program that reads a part of a large file in the SD card. The function "LoadSD (filename, address, size, offset)" is used in "Lo...
by PiyoTaro
Wed May 08, 2019 5:23 pm
Forum: ZX Spectrum Next
Topic: Help: Legacy peripherals do not work on my 2A board
Replies: 8
Views: 758

Re: Help: Legacy peripherals do not work on my 2A board

As I don't own a thermal printer ( zx , alphacom etc ) if you do a search on the forums you will see https://www.specnext.com/forum/viewtopic.php?f=6&t=634 and in the facebook group https://www.facebook.com/groups/specnext/permalink/619306438426680/ Thank you for your advice. In April 2018, I had p...
by PiyoTaro
Tue May 07, 2019 6:18 pm
Forum: ZX Spectrum Next
Topic: Help: Legacy peripherals do not work on my 2A board
Replies: 8
Views: 758

Help: Legacy peripherals do not work on my 2A board

When I connected my thermal printer "TIMEX Sinclair 2040" to the edge connector of "ZXSpectrumNext", it showed an unusual indication. As soon as the power of "ZXSpectrumNext" was turned on, the start menu was displayed and transitioned to the "Select Option" menu. When the printer is removed from th...
by PiyoTaro
Sun May 05, 2019 8:48 pm
Forum: ZX Spectrum Next
Topic: Musical potential of the NEXT.
Replies: 92
Views: 17786

Re: Musical potential of the NEXT.

FM pattents have expired... so no longer an issue And to optimize CPU, FM should be manipulated as logs and not in linear way (multiplications becoming simple additions)... (it's exactly what was done in the original FM hardwares...) 2 OPs FM (and probably 4 OPs) is really light for CPU... and is d...
by PiyoTaro
Sat May 04, 2019 9:18 am
Forum: ZX Spectrum (and Clones)
Topic: Design a small Sound card for Next
Replies: 23
Views: 2647

Re: Design a small Sound card for Next

Wouldn't it have been easier to get an edge connector and then you don't have to solder things to the motherboard ? Currently we can not find edge connector products for ZXSpectrum. I have been searching for ebay and sellmyretro for a long time, but there is concern about the quality of products th...
by PiyoTaro
Sat May 04, 2019 9:12 am
Forum: ZX Spectrum Next
Topic: Connectors / Jumpers List
Replies: 14
Views: 4139

Help: Re: Connectors / Jumpers List

Are there any voltages other than 5V at the edge connector?

Please tell me whether the voltage of "minus 5 volts" is supplied to "pin 39" of header CN5.

viewtopic.php?f=9&t=1365
by PiyoTaro
Tue Apr 30, 2019 1:52 pm
Forum: ZX Spectrum (and Clones)
Topic: Design a small Sound card for Next
Replies: 23
Views: 2647

Re: Design a small Sound card for Next

This project aims at a small FM sound card that can be put on the pin header terminal CN5 (on the ZX Spectrum Next board) . Prototype the FM sound module. --- I mounted the components on the board at last weekend. Compare with the layout (Postscript. The wiring could not be shown because only 3 pho...
by PiyoTaro
Thu Apr 25, 2019 12:08 pm
Forum: ZX Spectrum Next
Topic: Help needed connecting the Next board UART to a PC RS232 serial port
Replies: 32
Views: 5178

Re: Help needed connecting the Next board UART to a PC RS232 serial port

UART https://specnext.dev/wiki/UART here are some limits: Data format is fixed to 8N1: 8 data bits, no parity bit, one stop bit. No handshake signals, such as RTS/CTS, DTR/DSR. Not 5V tolerant. Putting more than 3.6V will cause the Spartan6 death UART TX $133B Write to this port sends the byte to s...