Occasional Contributor
Occasional ContributorHi, We're using a Raspberry Pi compatible display that is 800x600 at 60Hz (SVGA), so the spec is as follows:
htotal: 1056
hbend (hsync_end): 968
DSI lanes: 2
Pixel format (“pixels in parallel”): RGB888 (24 bpp)
Per-lane rate @ RGB888, 2-lane: ≈ 530 Mb/s per lane
I'm not sure about any other IP settings. We are using the IP in TX mode only.
thanks,
Steve
Regular ContributorHi Steve,
Can you please share me the .ip file ?
If you not sure where to locate it, perhaps printscreen on all the parameter "ip" "video timing" will be very helpful for me
Regards,
Wincent_Altera
Occasional ContributorHere are my settings for the MIPI DSI-2 IP tabs. A couple of notes:
* IP tab: without knowing better, I went with the defaults so I'm not sure if these need to be adjusted
* Video Timing tab: these are for a standard SVGA display (800x600 @ 60 Hz).
1. IP
General Options
Control and Status Registers (CSR) = checked
CRC insertion = checked
ECC insertion = checked
Fixed Latency Mode = checked
Buffer Depth = 4096
DPHY Interface Options
Number of lanes = 2
PPI bus width per lane = 2 bytes
Video Streaming Interface Options
Pixels in Parallel = 2
Maximum pixels per video line = 128
AXI4 TDATA width: 48 bits
Video Packing/Unpacking Options
MIPI DSI2-Data Type = RBG_24bit
2. Video Timing MIPI DSI-2 IP (800×600 @ 60 Hz)
Video Timing List
Video timing configuration values = Manual
Dimensions
HTOTAL = 1056
VTOTAL = 628
Blank Timing
HB_END = hfront + hsync + hback = 40 + 128 + 88 = 256
V1B_START = 0 (blanking begins at line 0)
V1B_END = vfront + vsync + vback = 1 + 4 + 23 = 28
Sync Timing
HS_START = hfront = 40
HS_END = hfront + hsync = 40 + 128 = 168
V1S_VSTART = vfront = 1
V1S_HSTART = 0 (vsync asserted from the start of each affected line)
V1S_VEND = vfront + vsync = 1 + 4 = 5
V1S_HEND = 0 (vsync spans the full line)
Regular ContributorHi @SteveS109
There is calculation need to be fullfill for the Htotal and Hbend under the "video timing" tab
This will be include in the later published user guide (ETA 2-4 weeks from now , subject to change)
By referring to your .ip setting
Under the "video timing" tab - please try to modified the value of Htotal and Hbend ONLY into
Other parameter such as V1S_VSTART, V1S_HSTART , V1S_VEND ... etc , you may remain the default value.
Then re-run the simulation again. let me know if you still seeing the any failure.
Regards,
Wincent_Altera
