VOGONS


Reply 300 of 429, by root42

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LABS wrote:

Just received a fresh batch of PCBs

They managed to put the batch number in the right spot! 😀

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Reply 301 of 429, by LABS

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Yes, I wrote earlier that they recently added a separate option for that on the order page, so looks like it is working now.

BLASTERBOARD: a DIY SB2.0-compatible sound card on ATmega328P microcontroller

Reply 302 of 429, by canthearu

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LABS wrote:

Just received a fresh batch of PCBs

IMG_0932.JPG

However, still upgrading the firmware, which will take some time.

We will be able to get that as a download right? Of course, we will need to do it in an EEPROM programmer.

Reply 303 of 429, by MJay99

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canthearu wrote:

We will be able to get that as a download right? Of course, we will need to do it in an EEPROM programmer.

That would indeed be great - curious about the changes already 😀

Reply 304 of 429, by LABS

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MJay99 wrote:
canthearu wrote:

We will be able to get that as a download right? Of course, we will need to do it in an EEPROM programmer.

That would indeed be great - curious about the changes already 😀

Sure, the compiled firmware will be available for download in intel hex format

BLASTERBOARD: a DIY SB2.0-compatible sound card on ATmega328P microcontroller

Reply 305 of 429, by LABS

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Almost finished with the firmware - had to rewrite a lot from scratch.
Still testing, but BlasterBoard is running Triton's Crystal Dream on my P166MMX now.

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BLASTERBOARD: a DIY SB2.0-compatible sound card on ATmega328P microcontroller

Reply 308 of 429, by keropi

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LABS wrote:

Oh yes, and Alone in the Dark in DMA mode as well 😈

music to my ears 🤣 🤣 🤣 🤣
excellent work again LABS!

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Reply 309 of 429, by root42

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Crosspost from the ModMaster thread:

Back from vacation and now I could test out ModMaster XT build 9. Here is the Pinball Fantasies intro, Steelchambers 2:

https://youtu.be/9fbGwKakdgM

Sounds quite good I think. I do not think I need more than 44 KHz, however the 8bit output leads to quantization noise I think. This won't go away with higher mixing frequency, I think. The software is getting more and more impressive. Now we need to make the whole software more well rounded. e.g. 43/50 line mode, showing of up to 8 channels or so (I can only ever see the first four).

Bonus: Adrenaline (Pinball Fantasies menu music):

https://youtu.be/Hw-jEB8G_8k

Space Debris at 62KHz: https://youtu.be/WX8_8ZHSxfw

Better than I expected. Still some quantization noise can be heard, but incredibly well sounding for an 8 bit card!

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Reply 310 of 429, by matze79

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Hi,

finally had time to solder it.. but i don`t get it detected as SB,
Adlib works just fine.

Checked for solder bridges etc. and found nothing 😒
ICs are correctly in position too 😒

Any Ideas what i should check first ?

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Reply 311 of 429, by root42

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Did you set the BLASTER environment variable? Shouldn’t be necessary with all programs... is the ATMEL ok? That would be one likely culprit.

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Reply 312 of 429, by matze79

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https://www.retroianer.de/blasterboard/

Have uploaded some Pictures but i can`t see any mistake yet..
As said OPL2 is working fine and its a pleasure to listen to it with headphones 😀

the atmel contains something and fusebit is set for external clock.
Whats PB1 Pin for ? are there debug messages on it ?

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Reply 313 of 429, by MJay99

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I can see a few pins where solder seems to at least touch the surrounding ground plane's solder mask (e.g. at the ATMEL socket, but also in other places). There might be ground connections, if the thin soldermask is damaged underneath. Maybe you can try and check those pins carefully, if there is anything shorted. During soldering I had to take extra care on this PCB because the space between the solderpads and surrounding ground is very thin and the soldermask seemed more fragile than on other PCBs I had before. HIH.

Reply 316 of 429, by root42

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matze79 wrote:
https://www.retroianer.de/blasterboard/ […]
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https://www.retroianer.de/blasterboard/

Have uploaded some Pictures but i can`t see any mistake yet..
As said OPL2 is working fine and its a pleasure to listen to it with headphones 😀

the atmel contains something and fusebit is set for external clock.
Whats PB1 Pin for ? are there debug messages on it ?

Is this a bridge to that via?

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Reply 318 of 429, by matze79

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just looks like, but isnt.

Its above the VIA.

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Reply 319 of 429, by matze79

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hm i suspect something other.. i wish i used sockets for all ics..

i can not find a unwanted ground connection checked every connection now..

Maybe Labs can give some Debug Information..
Without a Schematic its bit hard to guess which IC is deaf..
Is there some debug code on the atmega328p ? i

🆒The PB1 pin of the atmega is routed to H6 header now, it can be used for firmware debugging etc.

What sort of debugging interface ? TTL TX ?

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