Need to reset veronica regs when 65816 is reset
Veronica should be able to change the semaphore too.
Disable err_i, with that high cpu freezes on rdy dropped. Re-reading example it was held low there.
Latest 65816 changes from Robs github
Board has CE2, not CE_N connected to this pin. So need to use 1 to enable sram.
Back off by 2 cycles, make it more reliable (was missing some eclairexl writes)
Reverted test commit
Test
Taken from https://github.com/swetland/jtag
Add boundary scan definition files (saved from quartus)
Port of reverseU16 HDMI test, running over GPIO pins
Update from Panos (many thanks). Adjusted labels, tidied endings where nets meet pins
Simple tone
Different GPIOC mapping for 1.0a/1.1+
Fixed up on port 3
Sound appears to be back to front on the chameleon top level!
Connct triggers in atari 800 mode
Fixed incorrect trig connection
Only enable portb ram control on xl/xe
A800 and XL core build for chameleon, now to test M.U.L.E!
Atari 800 core to use docking station sticks 3 and 4
Repeat much more quickly
blank fix and use 64k
Started ram test. Added SDC files
need to write something here too
Simple core that iterates over the gpio pin by pin
Hello world a800 core build, not yet tried on hardware
starting to write some test cores
Reminder of BGA placement tabs
Added eclaireXL 1.2 board revision BOM
Plugged in the sram model to check timings
Need to review further, but these changes seem to bring the 65816 core to life somewhat
Added testbenches. Do not respond to bus cycles that do not target the cart
sram model for tb
Moved memory timing bridge inside slave_timing, its an internal detail really
Adjusted delays and verified in sim
Trivial but important fixes, thanks to quartus warnings
70ns accuracy is not enough for reliable Atari bus sampling, use faster clock we are already using for sram
Register bus_data before we write it
Fixed c0 decode and made more explicit
Simulated and repaired 6502 bus and sram bus
constraint all cart input/outputs - 1.79MHz so not a problem. Improve sram constraints - including adding a bit of hold time.
register output data
Missed commit
Simulated/corrected sram back-back write timings
First cut implementation of veronica clone for ultimate cart - does not work yet, but getting close. Project to try out Rob Finchs 65816 core.
Fix airstrike 1 loading - have to nak sector 0
HDMI port
Added boms with digikey part numbers - obvious check yourself too before ordering!
Added support for fake scanlines
Made replay build with latest replay svn - need to verify it works though - really need to do some work on this platform...
Fixed joystick pins - euuugh. Time to replace all these custom 5200 wrappers with a common one!
mif updating of rom
add eclairexl rom
5200 digital stick support
digital stick support for 5200
use common version script
Ádded USB joystick switching + misc fixes for mcc release 1.3
Moved video ports to the back (painful!!). Added rocker switch on left for power.
Added build for svideo/composite mode
Latest version with working usb and sdram. zpu rom is in mif for fast updates for now.
Updated quartus version
Torid support for mcc
Torid works!
Shrunk some logging
Changed from iprintf to hub_debugf, so save rom when enabling iprintf
Debugged usb logging a little
Some primitive ram test code - disabled for now
Not sure quite what I was trying to do here, but it works. Fix 0 size writes?!
Added eclairexl to build
DE1 connector spacing (20mm). Improved mounting holes.
Torid support - untested as yet. Its not HID but hack it to work! TODO: more generic support
Moved traces away from mounting holes to remove risk of taking out traces with screws... Harder than expected!
Fixed audio connector footprint/location. Fixed oscilator footprint (fitted but was too large). Added 16 pin support for serial init rom. Moved reset switch location to allow this. Added pull ups and decoupling to ADC (still untested). Added some more 2.5mm drill holes on the right for stencil positioning. Increased 2.5mm drill size by 1 notch (was too small to fit). Added solder pads for din connectors. Fixed footprint for phono connector. Increased resistor array size to allow fixing by hand more easily. Added pin headers to allow bypassing resistor arrays in case of issues soldering thsm! Added pin header borders to board to make it clear how much space is needed around them for sockets. Made room for jtag pin header socket. Increased version to v1.1. Added decoupling cap to oscillator. Added voltage test point header. Power ADC by 5V (it allows 2.7V to 5.5v but higher reduces changes of breaking it by high voltage inputs I think). Think thats it. Will review a bit then make the next board revision.
Way to scanning for bad connections on gpio ports and store in ram
ip for loading into passive serial chip - not included for now
add vga clock. Revert keyboard response change, it was correct before there are just gpio shorts/bad conns
Set chip type for builds with internal rom and ram
run quartus!
debugged
Add low drive strength, particularly while checking for shorts!
fix keyboard. Add a hardware test gpio version to just turn on each pin in turn.
Added internal rom ram mode
Eagle projects for the DE1 and EclaireXL breakout boards. Also the project for the EclaireXL mainboard. The breakboard boards are tested, though there are a few known issues to fix (connect that airwire at the least!!). The EclaireXL is untested as yet.
Debugged usb logging
usb debug support to fix torid
Disable playfield DMA when mode dmactl(1 downto 0)=="00". Fixes turmoil and spider city. I am sure I also need to fix the dma clock since this is not a case I really thought anything used. Still it passes acid and fixes these games so committing as is. Thanks to Phaeron for the help with this one!
Allow 2nd joypad to press select too
Added return to boot menu to a800 mcc cores
Hold select(pause) for 5 seconds to return to boot menu
Typo for reset
Firmware changes for 5200 joystick control in the menu
Fix menu control with stick on 5200. Add escape support by pressing both stick triggers. Make accidental reboot harder on 5200. Now reboot is on right stick + trigger on both platforms. Still on trig2 for a800 which only has one fire button.
Paddle fixes. Enable pokey even when only ZPU active. Fix allpot.