frezeen ha scritto: ↑21/03/2018, 17:41
bella domanda o domanda difficile?
naturalmente questa config non funziona su jammapi, perche' da quel che ho capito jammapi prende il segnale video dal GPIO mentre la config sotto esce da porta hdmi giusto?!
hdmi_cvt=720 240 60 1 0 0 0
hdmi_group=2
hdmi_mode=87
ho cercato tutto intrnet per capire come ricavarmi una stringa dpi_timings per 720x240@60 ma non ho trovaqto nulla a parte questo:
To calculate Timings, i use a software : Custom Resolution Utility
This software is not to calculate CRT timings but can be used to.
Use "Detailed resolution" - "Edit BUTTON" and Play !
e questo:
current rpi implementation support only a limited set of pixel freq (4800000, 6400000, 9600000...)
This tool is usable in the following way: first set CRT standard with resolution you want in 60Hz, then adapt pixel clock with rpi compatible one (increasing will result of narrower result and decreasing will result of more overscan) calculate vsync width using rule of three then play with back & front porch in order to be close to 60Hz for vertical and 15Khz for horizontal. If the screen is not well centered then balance between front & back porch.
la mia faccia a tutto cio'!
prova questo script di pi2scart:
https://drive.google.com/file/d/0B10JEK ... VzdGM/view
qualche timings che ho trovato (sono da provare):
hdmi_timings=336 1 10 30 34 252 1 15 3 42 0 0 0 50 0 6400000 1 # 336:252 6.4MHz progressive
hdmi_timings=336 1 10 30 34 252 1 15 3 42 0 0 0 50 0 6400000 1 # 336:252 6.4MHz progressive
hdmi_timings=320 1 20 29 35 224 1 10 14 16 0 0 0 60 0 6400000 1 # 320:224 Sega Genesis (NTSC)
hdmi_timings=256 1 6 17 18 192 1 26 22 29 0 0 0 60 0 4800000 1 # 256:192 Sega Master System (NTSC)
hdmi_timings=256 1 8 17 21 224 1 7 10 24 0 0 0 60 0 4800000 1 # 256:224 NES, SNES (NTSC)
hdmi_timings=320 1 20 29 35 224 1 10 14 16 0 0 0 60 0 6400000 1 # 320:224 Sega Genesis (NTSC)
hdmi_timings=320 1 14 46 28 256 1 17 32 9 0 0 0 50 0 6400000 1 # 320:256 Amiga (PAL)
EMULATIONSTATION
hdmi_timings 450 1 50 30 85 288 1 10 1 25 0 0 0 60 0 9600000 1
NEOGEO
hdmi_timings 1920 1 152 247 280 224 1 13 8 19 0 0 0 59.186 0 40610000 1
PCENGINE
hdmi_timings 1920 1 158 250 286 232 1 4 3 23 0 0 0 59.94 0 41060000 1
PLAYSTATION
hdmi_timings 1920 1 152 247 280 240 1 1 7 14 0 0 0 60 0 40860000 1
hdmi_timings 1920 1 132 247 280 288 1 3 3 18 0 0 0 50 0 40240000 1
MEGADRIVE/GENESIS/MASTER SYSTEM
hdmi_timings 1920 1 48 192 240 240 1 3 3 16 0 0 0 59.92 0 37680000 1
hdmi_timings 1920 1 48 192 240 288 1 6 3 16 0 0 0 49.70 0 37340000 1
NES
hdmi_timings 1920 1 158 200 286 240 1 1 8 13 0 0 0 60.10 0 40380000 1
hdmi_timings 1920 1 158 200 314 240 1 23 6 43 0 0 0 50.01 0 40450000 1
SNES
hdmi_timings 1920 1 160 200 286 224 1 9 8 21 0 0 0 60.10 0 40410000 1
hdmi_timings 1920 1 158 200 314 239 1 25 6 42 0 0 0 50.01 0 40450000 1
AMIGA
hdmi_timings 1920 1 180 192 334 262 1 14 15 22 0 0 0 50 0 41200000 1
224p x 60Hz
hdmi_timings 1920 1 152 247 280 224 1 8 7 23 0 0 0 60 0 40860000 1
240p x 60Hz
hdmi_timings 1920 1 152 247 280 240 1 3 7 12 0 0 0 60 0 40860000 1
216 x 60Hz
hdmi_timings 1920 1 152 247 280 224 1 8 7 23 0 0 0 60 0 40860000 1
192 x 60Hz
hdmi_timings 1920 1 152 247 280 224 1 8 7 23 0 0 0 60 0 40860000 1
256p x 55Hz
hdmi_timings 1920 1 100 320 260 288 1 1 3 1 0 0 0 55 0 41900000 1
254p53.20Hz
hdmi_timings 1920 1 100 320 260 254 1 1 3 36 0 0 0 53.20 0 40670000 1
224p58.97Hz
hdmi_timings 1920 1 50 250 250 250 1 8 10 8 0 0 0 58.97 0 38750000 1
240p55.72Hz
hdmi_timings 1920 1 50 250 250 260 1 4 5 8 0 0 0 55.72 0 38130000 1