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- Wed Sep 20, 2023 9:41 am
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
- Sun Sep 10, 2023 10:16 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
- Sun Sep 10, 2023 5:42 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
Re: SD81 Booster
Updated instructions to upgrade the firmware from Linux Install avrdude with the command sudo apt install avrdude Try to uninstall brltty from the system, because it interferes with the CH340 chip driver. sudo apt-get remove --auto-remove --purge brltty Remove the SD81 Booster from the console and c...
- Sun Sep 10, 2023 2:05 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
Re: SD81 Booster
The H.É.R.O. already works, but both the CPLD and the arduino must be updated. To update the CPLD the method is the same as the previous time: - Copy the file SD81CPLD.XSVF to the root of the SD, insert the card and power up the zx81 - The status LED will begin to flash warning that the CPLD is goin...
- Sat Sep 09, 2023 3:36 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
- Sat Sep 09, 2023 11:21 am
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
Re: SD81 Booster
https://codeberg.org/Retrostuff/SD81-Bo ... ontent/SYS
I have added the modified BigBang ROMs to the SDCONTENT\SYS folder to work with all the interface functions.
I have added the modified BigBang ROMs to the SDCONTENT\SYS folder to work with all the interface functions.
- Fri Sep 08, 2023 11:26 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
Re: SD81 Booster
I have not tested yet with this ROM, but in theory it is possible to test BigBang ROM just using LOAD FAST "zx81x2.rom". It will load the ROM an will reset the system with the new ROM. Unfortunatelly this ROM has not extensions to use the SD. It could change in the future if I contact with the BigB...
- Fri Sep 08, 2023 6:07 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
Re: SD81 Booster
Do you have a modified version for use with SD81 of the BigBang ROM as well? https://www.sinclairzxworld.com/viewtopic.php?f=5&t=2986 I have not tested yet with this ROM, but in theory it is possible to test BigBang ROM just using LOAD FAST "zx81x2.rom". It will load the ROM an will reset the syste...
- Thu Sep 07, 2023 5:48 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
Re: SD81 Booster
Next bacth ready to be sent.
In some days, update for compatibility with H.E.R.O......
In some days, update for compatibility with H.E.R.O......
- Mon Sep 04, 2023 4:43 pm
- Forum: Hardware
- Topic: SD81 Booster
- Replies: 79
- Views: 33567
Re: SD81 Booster
I'll explain you the background of the few games that didn't work: The SD81Booster is an interface that completely replaces the ROM and internal RAM of the ZX81 with a RAM chip, existing in the interface, that performs both functions. This allows, for example, to be able to hot load the Forth ROM th...