project sd2snes

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project sd2snes

…SD cards? In my SNES?

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Month: March 2019

Firmware v1.10.2 released

Firmware v1.10.2 released

March 29, 2019 ikari Comments 8 comments

Firmware 1.10.2 is out with a round of fixes.

What’s new:

Fixes:
- [Pro] fix wrong data ROM size on uPD96050 core -> F1 ROC II track is shown properly.
- [Pro] fix S-DD1 address mirroring -> Star Ocean works
- [Pro] correct Cx4 core speed from 96MHz to 80MHz
- [All] apply volume boost after FPGA reconfiguration (fixes MSU1 volume boost on Cx4, OBC1, SuperFX, SA-1, S-DD1)
- [All] fix S-DD1 writes going to the wrong address on concurrent MCU accesses (saving occasionally not working in Star Ocean)
- [All] avoid potential data corruption on MCU writes (e.g. SPC loading)
- [All] Workaround for Super Nt not booting when CIC enters pair mode successfully

Firmware v1.10.1 released

Firmware v1.10.1 released

March 1, 2019 ikari Comments 34 comments

Firmware 1.10.1 is out. This is an important update for SD2SNES Pro users since v1.10.0 doesn’t boot on it due to a silly bug. Sorry about that!

What’s new:

Actually boot on SD2SNES Pro

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latest work

Revert pulse end strobe based time sharing Seems to have caused problems on a number of units; reverting until further analysis/refinement
SuperFX: Revert to previous bus sampling timing This seems to have caused random access glitches for the GSU core.
Add .SGB file extension in browser
Fixed SGB RTC by adding dummy write to account for data buffer.
OpenOCD: Use soft instead of hard reset LPC17xx likes to lock up on nSRST reset, requiring a power cycle which is inconvenient for development
Fix CIC shutdown when saving settings on unmodded consoles Regression caused by fffe499: When saving the config, to set the video mode, CIC data lines were switched to outputs regardless of whether pair mode was detected or enabled. This caused an unmodded console with original CIC to shut down and require a power cycle.
MSU1: speed up bulk PCM file scanning by some games Some games, notably ALTTP Randomizer, perform a full scan of all PCM tracks on startup. After adding MSU1 SRAM checks, this led to a full SRAM check per track scanned (because it was considered a safe opportunity to always do an SRAM check on track change), resulting in 7+ seconds of one-time startup time for the game which was considered unacceptable. SRAM check is now relaxed to at most once per second on track change; startup time is reduced to about 600ms.
Avoid static buzzing noise on MSU1 track change Some games do not pause playback before changing the audio track. Normally this is not a problem since the track change handling stops playback implicitly; however after adding MSU1 SRAM checks the playback stop had moved after the SRAM check so there was an opportunity for the FPGA continuing playback without refilling the audio buffer. Playback is now stopped before performing the SRAM check on track change.
Add config toggles for Autosave & MSU1 Autosave Since MSU1 auto saving may lead to undesired delays on track changes for quirky hacks, add a config option to turn it off. In the process, a global autosave disable option is also introduced. MSU1 autosave is automatically disabled when global autosave is disabled.
Fixed branch latency and readjusted memory latencies which were compensating for it. Added some performance counters available in DEBUG mode.

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