Activity

From 05/07/2018 to 06/05/2018

10:07 PM Bug #64: Pokey pdm timing incorrect: Aha, got it... foft
09:58 PM Bug #64: Pokey pdm timing incorrect: Problem with stimer?? foft
09:09 PM Bug #64 (In Progress): Pokey pdm timing incorrect: Reopening, inconsistent timing in calibrate foft
09:07 PM Bug #31 (Closed): HDMI Audio generate high pitch noise (Core 8): foft
09:07 PM Bug #31: HDMI Audio generate high pitch noise (Core 8): Added a low pass filter and this is gone, to be released in v23. foft
09:07 PM Bug #6: HDMI audio poor quality: Wired this up and sounding much better.
Unfortunately @farb seems to have completely different symptoms! https://p... foft

10:00 PM Bug #6: HDMI audio poor quality: Could look into FIR and IIR filters, but to be honest this seems very lightweight and to work well. Will implement an... foft
09:58 PM Bug #6: HDMI audio poor quality: Trying out various options in Octave.
sample = current method (just take the current value), flat line at top!
me... foft
09:15 PM Feature #68: Implement stock Atari 800 mode: I agree, not to mention that 4th joystick port's poor fire button. I actually built most of this for the mist a while... foft

08:35 PM Bug #6: HDMI audio poor quality: Investigating resampling high frequencies to 48KHz with some plots in Octave. The average that I removed wasn't a bad... foft
11:21 AM Feature #68 (Closed): Implement stock Atari 800 mode: It would be great to have the option of using NTSC, OS-B and 48K to reflect an unmodified Atari 800. There are also o... Farb

10:15 PM Bug #31: HDMI Audio generate high pitch noise (Core 8): HDMI audio is sounding better now in general (signed/unsigned). This high pitched noise is still heard in some cases ... foft
10:06 PM Core v22: Received my board today.
I tried to understand the flash chip problems. All I found so far is that it has a 64KB s... foft
08:27 PM Bug #66: Odd flash behaviour on new boards: Flashing a new PDM is very clear that the board is erasing in 64KB blocks. That does not explain the core corruption ... foft
08:01 PM Bug #6: HDMI audio poor quality: The biggest issue with this appears to be that I need to send signed samples. Changed that and its sounding much better. foft

10:46 AM Bug #64 (Closed): Pokey pdm timing incorrect: Seems to run fine, Acid now passes again as far as I can tell. admin
08:24 AM Bug #64: Pokey pdm timing incorrect: Been checking on the scope. The one cycle delay looks correct.
Some jitter issues due to when I activate pokey. I wa... foft
10:42 AM Bug #67 (Resolved): Pokey two tone timing problem: An old bug.. See http://atariage.com/forums/topic/228527-pokey-emulation/page-3#entry3060595
10 P=53760
20 POKE P... admin

10:07 PM Bug #64: Pokey pdm timing incorrect: Tried a 1 cycle and a half cycle delay on the input to the xor. Neither are seeming quite right, but 1 cycle delay is... foft
08:21 PM Bug #64: Pokey pdm timing incorrect: Phaeron got a scope on it:
http://atariage.com/forums/topic/244946-using-pulse-density-modulation-for-8-bit-pcm/page... foft

09:52 PM Bug #66: Odd flash behaviour on new boards: Gathering ids on other boards in case I need to switch on that: [[Flash_chip_by_board]] foft
09:49 PM Bug #6: HDMI audio poor quality: # Is the time between this always the same? If so can dIs the sound quality poor because I removed the divide?
# If ... foft

09:14 PM Warning: flash chip on new boards: I have not received my new board yet so have yet to test the new flash chip (S25FL127SABMFV000). So, unless you have ... foft
09:11 PM Bug #66 (Closed): Odd flash behaviour on new boards: Ensure that the new flash chip is stable with the existing firmware strategy. It has some hybrid 64k/4k sector option... foft
03:28 PM V21: Not so many features on this version, but I think it is a worthwhile one!
* RPD flashing support
So what is it... foft

06:31 AM Feature #65: Implement ATA to SPI bridge: Above was info from flashjazzcat on the forum foft
06:30 AM Feature #65: Implement ATA to SPI bridge: I need to prepare a document outlining the minimum requirements of IDE emulation since I'm explaining the same thing ... foft

08:52 PM Feature #65: Implement ATA to SPI bridge: foft wrote:
> There is plenty of software for the Atari which accesses ATA hard drives via a simple register interfa... sadosp
08:44 PM Feature #65 (New): Implement ATA to SPI bridge: There is plenty of software for the Atari which accesses ATA hard drives via a simple register interface. Find out wh... foft

09:25 PM New boards: The new boards are ready and shipped. So I'm hoping to see more activity here when they start to arrive. Also now thi... foft

10:04 PM Bug #64 (Closed): Pokey pdm timing incorrect: See
http://atariage.com/forums/topic/244946-using-pulse-density-modulation-for-8-bit-pcm/page-3#entry4025673
So w... foft

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