la supergun in pratica è questa:
e lo so è stupido utilizzarla quando si ha già una presa scart sul JammaPi v3 ...
ma la SUPERGUN con un MIVAR21S4 Crt Migliora la resa arcade...
perché in questo modo ho un collegamento CGA e le scanlines , mentre se utilizzo lo scart sul JammaPi le scanlines svaniscono perché l'immagine è di una qualità migliore....
comunque il mio setup è questo:
JAMMAPI V3
RASPBERRY PI3B+
SUPERGUN (JAMMA TO SCART)
Mivar 21s4 CRT
# For more options and information see
#
http://rpf.io/configtxtreadme
# Some settings may impact device functionality. See link above for details
disable_splash=1
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
# overscan_left=16
# overscan_right=16
# overscan_top=16
# overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
hdmi_group=2
hdmi_mode=2
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
total_mem=1024
arm_freq=1500
gpu_freq=500
core_freq=500
sdram_freq=500
sdram_schmoo=0x02000020
over_voltage=6
sdram_over_voltage=2
v3d_freq=525
#arm_freq=1575
#gpu_freq=500
#core_freq=500
#sdram_freq=500
#sdram_schmoo=0x02000020
#over_voltage=6
#sdram_over_voltage=2
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
#gpu_mem_256=128
#gpu_mem_512=256
#gpu_mem_1024=256
overscan_scale=1
gpu_mem=512
dtparam=i2c_vc=on
dtoverlay=pwm-2chan,pin=18,func=2,pin2=19,func2=2
disable_audio_dither=1
dtoverlay=vga666-6
enable_dpi_lcd=1
display_default_lcd=1
dpi_output_format=6
dpi_group=2
dpi_mode=87
audio_pwm_mode=2
hdmi_timings=450 1 50 30 85 288 1 10 1 25 0 0 0 60 0 9600000 1 #240p
Con questo CFG ho l'audio che esce dal cablaggio Jamma e non ho rallentamenti... se invece utilizzo la configurazione di Vincenzo Bini :
# For more options and information see
#
http://rpf.io/configtxtreadme
# Some settings may impact device functionality. See link above for details
disable_splash=1
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
gpu_mem_256=128
gpu_mem_512=256
gpu_mem_1024=256
overscan_scale=1
#gpu_mem=320
max_usb_current=1
dtparam=i2c_vc=on
dtoverlay=pwm-2chan,pin=18,func=2,pin2=19,func2=2
disable_audio_dither=1
dtoverlay=vga666-6
enable_dpi_lcd=1
display_default_lcd=1
dpi_output_format=6
dpi_group=2
dpi_mode=87
hdmi_timings=450 1 50 30 90 270 1 10 1 21 0 0 0 50 0 9600000 1
Il video è normale ma L'audio è rallentato.....