Looking at the driver on hitt and the overlay driver in your test zip file they have different pins configured. The driver in the test zip file assumes pin 0, 1, etc. The one on hitts website uses different pins, you want make sure your hardware matches the code.
that's the one from my zip-file! How can i read it from these lines which pins that are? #1=0, #2=1, and #4=2 :?
And i've got the HITT_Video_Overlay_018, but there is nothing like that!
Ok. My hardware is connected like that, so i assume that my Test-Zip wouldn't work for me! Can i redefine the Pins in my Test-File?
Man i'm so confused :S In the attachment is the schematics how i exactly have it connected, now i'm only looking for a piece of code that i could use, without all this GPS-Stuff. I'm never sure if there could not probably be an error in this part of code!
There is a couple of places I can see in the driver
OverlayAsm MOV _screenAddr,par ' Get address of screen memory
MOV _syncPinMask,#1 ' Sync is on pin P0
MOV _videoPinMask,#2 ' Output is on pin P1
MOV _genPinMask,#4 ' Output is on pin P2
' Setup cnta to use video hardware
MOVI ctra,#%000001_111 ' Video PLL x16
MOV frqa,VideoFreq ' Set dot clock to 5.818182 MHz
' Setup VSU (initially off)
MOVI vcfg,#%0_00_0_0_0_000 ' Generation off
MOVS vcfg,#%0000_0010 ' Use only pin 1 for output
MOVD vcfg,#0 ' Use pin group 0
The 1st you found, the 3 lines setting the masks, 1, 2, 4 which are pins 0,1,2
The 2nd is the last 2 lines above which is setting the video config - the last line is saying a pin group - which is 0-7,8-15,16-23,24-31, the 2nd to last line is giving the pin mask within the group, so in the above code group 0 (0-7), then pin 1 within the group.
oh yeah, i got it! Is that all i have to change for getting my test-zip working?
OverlayAsm MOV _screenAddr,par ' Get address of screen memory
MOV _syncPinMask,#1 ' Sync is on pin P0
MOV _videoPinMask,#2 ' Output is on pin P1
MOV _genPinMask,#4 ' Output is on pin P2
' Setup cnta to use video hardware
MOVI ctra,#%000001_111 ' Video PLL x16
MOV frqa,VideoFreq ' Set dot clock to 5.818182 MHz
' Setup VSU (initially off)
MOVI vcfg,#%0_00_0_0_0_000 ' Generation off
MOVS vcfg,#%0000_0010 ' Use only pin 1 for output
MOVD vcfg,#4 ' Use pin group 0
Ok so for my schematics, i use pin group 2 (16-29), but which pin is the one for the line
MOVS vcfg,#%0000_0010 ' Use only pin 1 for output
?
and how about these lines. I thin _syncPinMask should be Pin22, which is #4194304 am i right? Looks a bit stupid.
And what are these other masks? Actuallly, i've got something like 4 output-pins (16-19).
MOV _syncPinMask,#1 ' Sync is on pin P0
MOV _videoPinMask,#2 ' Output is on pin P1
MOV _genPinMask,#4 ' Output is on pin P2
thanks for your help timmoore, but i'm not yet getting the point !
There is the equalivalent in the other driver but its done differently
This is the vcfg config
MOVI vcfg,#%0_00_0_0_0_000 ' Generation off
MOVS vcfg,#%0000_1100 ' Use pin P18,P19 (2&3 of group 2) for output
MOVD vcfg,#2 ' Use pin group 2 (P16-P23)
Using pins 16 and above, the bit mask will be greater than $1ff so it can't be done as an argument to the pasm instruction, so they are defined in variables at the end.
_syncPinMask LONG %0000_0000_1000_0000_0000_0000_0000_0000 ' Sync output from EL1883 IC P23 (22)
_videoPinMask LONG %0000_0000_0000_1100_0000_0000_0000_0000 ' Video output from propeller (~470Ohm) P18,P196yhn 2
_videoSinkPin LONG %0000_0000_0000_0100_0000_0000_0000_0000 ' Video Sink (darken) pin mask P18
_genPinsMask LONG %0000_0000_0000_0011_0000_0000_0000_0000 ' Mask for both generation pins P16,P17
_genPinSyncMask LONG %0000_0000_0000_0010_0000_0000_0000_0000 ' Mask for generation sync pin P17
So there isn't the instructions needed to set the variables, since they are set in the source file.
Is there a reason why you couldn't use the driver from terry hitt rather than trying to modify the other driver? The trouble I see is the 2 drivers you different wiring. So to use the driver you are currently using, yo either need to change the wiring or work out the changes to map to the wiring you have. The schematic you show is correct for the version 18 driver but the driver in you zip file is version 12 which has a different schematic at the top.
I think you need to make sure the schematic and driver match.
First, you need video input to generate a vertical sync pulse from the lm1881 (lm1883) into p0 of the prop in my case. The video in goes to pin 2 on the ln1881 via a .1 mfd cap used to generate the vertical sync pulse out on pin 1 of the lm1881 who's output goes to p0 of the prop.
I have my video in/out connected together directly.
The .1 mfd cap goes from this in/out connection to pin 2 on the lm1881 (or 1883)
Pin 1 of the lm1881 to P0 of the prop via a 1k series resister unless you use the lm1883 a 3v part, then connect directly
Then I have a 470 ohm resister from P1 of the prop to the in/out video connector.
I use "HITT_Video_Overlay_012" for the overlay video on my autopilot.
I don't think I modified it buy just in case, here is the one I use
Just to clarify: pin 1 of the LM1881 is the composite sync (CSYNC) output and is, in fact, the correct pin to use. I think there was some confusion in earlier posts about which sync output to feed the Prop. While it may be possible to use the vertical sync (VSYNC, pin 3), one would probably begin to lose line synchronnization before the field ended and the next VSYNC came along.
thank you very much for your help! Today i tried to adapt the Version 12 (Pins 0-4) to the wiring of version 18 (16,17,18,19,23.. which i use).
My video-signal (PAL from cam) is shown very good, so that part works [noparse];)[/noparse] But there's still no overlay!
In the attachment is the program i adapted.
I'm not sure about the following lines:
OverlayAsm MOV _screenAddr,par ' Get address of screen memory
MOV _syncPinMask,#%1000_0000 ' Sync is on pin P23
MOV _videoPinMask,#%0000_0100 ' Output is on pin P18
MOV _genPinMask,#%0000_1000 ' Output is on pin P19
i know that #%1000_0000 is not 23, but i'm not able to change it to 23, because the error Timmoore mentioned.
So there is this part of code at the end of my file:
_syncPinMask LONG %0000_0000_1000_0000_0000_0000_0000_0000 ' Sync output from EL1883 IC
_videoPinMask LONG %0000_0000_0000_1100_0000_0000_0000_0000 ' Video output from propeller (~470Ohm)
_genPinMask LONG %0000_0000_0000_0010_0000_0000_0000_0000 ' Sync gen output from propeller (~1K)
I adapted the Pins, but am not sure if this is right. And also: do i have to remove the top-instruction?!? (think it's twice then?)
also, in Version18, there are the following lines:
_videoSinkPin LONG %0000_0000_0000_0100_0000_0000_0000_0000 ' Video Sink (darken) pin mask P18
_genPinsMask LONG %0000_0000_0000_0011_0000_0000_0000_0000 ' Mask for both generation pins P16,P17
_genPinSyncMask LONG %0000_0000_0000_0010_0000_0000_0000_0000 ' Mask for generation sync pin P17
They don't appear in the Version12!
I'm very confused about which parts of the drivers i have to use! But i feel like being close to the solution, thanks to you!
You want to remove the mov_syncPinMask,.. lines. The variable is initialized to the value you have at the end of the file. The mov instruction is overwriting this value which isn't what you want. Just deleting the line means the variable is set to the value you need. Try commenting out the 3 mov ...Mask,... lines.
My video-signal (PAL from cam) is shown very good, so that part works [noparse];)[/noparse] But there's still no overlay!
Hi propwell,
i think the HITToverlay-version 1.2 doesn't run with PAL, it's only for NTSC, try using HITT_Video_Overlay_017(018).spin
(or switch you CAM to NTSC output)
here is a good example with HITT_Video_Overlay_017.spin and source:
@Timmoore: thanks, do you think this could be the problem?
@tharkun: hm well, changig to NTSC doesn't work for me, what a petty. Is it possible to change the 017 or 018 to PAL or why do you propose that? In your posted link it is also an NTSC-Cam used!
I'd be glad to change my existing file to PAL and to "working" [noparse];)[/noparse]
i now used the programcode of the Propeller_On_Screen_Drone, the HITT-Version 17.
I can find there several lines with PAL written in it:
_palModeAddr RES 1 ' Address of PAL_Mode variable
_palModeValue RES 1 ' Hold value in PAL_Mode variable 0=NTSC; 1=PAL generation
in the code there are many points where the palModeValue appears, but i don't know where to change the PAL_Mode variable to 1, instead of 0?
Can please someone help me?
Thank you all very much!
[noparse]:edit:[/noparse] i added the whole project in the attachment. I tried to delete everything that hasn't anything to do with the Overlay ( Like the GPS and the accerometer...)
When i let it run, i get a flickering white line running repeatently from top to bottom, taking about 1,5 seconds. the source-video seems to be ok!
man, i feel to be so close, but i can't find where i have to switch it to PAL!
Post Edited (propwell) : 7/15/2009 10:59:06 AM GMT
Comments
OverlayASM MOV _screenAddr, par MOV _syncPinMask, #1 MOV _videoPinMask, #2 MOV -genPinMask, #4that's the one from my zip-file! How can i read it from these lines which pins that are? #1=0, #2=1, and #4=2 :?
And i've got the HITT_Video_Overlay_018, but there is nothing like that!
Ok. My hardware is connected like that, so i assume that my Test-Zip wouldn't work for me! Can i redefine the Pins in my Test-File?
Man i'm so confused :S In the attachment is the schematics how i exactly have it connected, now i'm only looking for a piece of code that i could use, without all this GPS-Stuff. I'm never sure if there could not probably be an error in this part of code!
Thanks to you all!
OverlayAsm MOV _screenAddr,par ' Get address of screen memory MOV _syncPinMask,#1 ' Sync is on pin P0 MOV _videoPinMask,#2 ' Output is on pin P1 MOV _genPinMask,#4 ' Output is on pin P2 ' Setup cnta to use video hardware MOVI ctra,#%000001_111 ' Video PLL x16 MOV frqa,VideoFreq ' Set dot clock to 5.818182 MHz ' Setup VSU (initially off) MOVI vcfg,#%0_00_0_0_0_000 ' Generation off MOVS vcfg,#%0000_0010 ' Use only pin 1 for output MOVD vcfg,#0 ' Use pin group 0The 1st you found, the 3 lines setting the masks, 1, 2, 4 which are pins 0,1,2
The 2nd is the last 2 lines above which is setting the video config - the last line is saying a pin group - which is 0-7,8-15,16-23,24-31, the 2nd to last line is giving the pin mask within the group, so in the above code group 0 (0-7), then pin 1 within the group.
OverlayAsm MOV _screenAddr,par ' Get address of screen memory MOV _syncPinMask,#1 ' Sync is on pin P0 MOV _videoPinMask,#2 ' Output is on pin P1 MOV _genPinMask,#4 ' Output is on pin P2 ' Setup cnta to use video hardware MOVI ctra,#%000001_111 ' Video PLL x16 MOV frqa,VideoFreq ' Set dot clock to 5.818182 MHz ' Setup VSU (initially off) MOVI vcfg,#%0_00_0_0_0_000 ' Generation off MOVS vcfg,#%0000_0010 ' Use only pin 1 for output MOVD vcfg,#4 ' Use pin group 0Ok so for my schematics, i use pin group 2 (16-29), but which pin is the one for the line
?
and how about these lines. I thin _syncPinMask should be Pin22, which is #4194304 am i right? Looks a bit stupid.
And what are these other masks? Actuallly, i've got something like 4 output-pins (16-19).
MOV _syncPinMask,#1 ' Sync is on pin P0 MOV _videoPinMask,#2 ' Output is on pin P1 MOV _genPinMask,#4 ' Output is on pin P2thanks for your help timmoore, but i'm not yet getting the point !
This is the vcfg config
MOVI vcfg,#%0_00_0_0_0_000 ' Generation off MOVS vcfg,#%0000_1100 ' Use pin P18,P19 (2&3 of group 2) for output MOVD vcfg,#2 ' Use pin group 2 (P16-P23)Using pins 16 and above, the bit mask will be greater than $1ff so it can't be done as an argument to the pasm instruction, so they are defined in variables at the end.
So there isn't the instructions needed to set the variables, since they are set in the source file.
Is there a reason why you couldn't use the driver from terry hitt rather than trying to modify the other driver? The trouble I see is the 2 drivers you different wiring. So to use the driver you are currently using, yo either need to change the wiring or work out the changes to map to the wiring you have. The schematic you show is correct for the version 18 driver but the driver in you zip file is version 12 which has a different schematic at the top.
I think you need to make sure the schematic and driver match.
I have my video in/out connected together directly.
The .1 mfd cap goes from this in/out connection to pin 2 on the lm1881 (or 1883)
Pin 1 of the lm1881 to P0 of the prop via a 1k series resister unless you use the lm1883 a 3v part, then connect directly
Then I have a 470 ohm resister from P1 of the prop to the in/out video connector.
I use "HITT_Video_Overlay_012" for the overlay video on my autopilot.
I don't think I modified it buy just in case, here is the one I use
Just to clarify: pin 1 of the LM1881 is the composite sync (CSYNC) output and is, in fact, the correct pin to use. I think there was some confusion in earlier posts about which sync output to feed the Prop. While it may be possible to use the vertical sync (VSYNC, pin 3), one would probably begin to lose line synchronnization before the field ended and the next VSYNC came along.
-Phil
thank you very much for your help! Today i tried to adapt the Version 12 (Pins 0-4) to the wiring of version 18 (16,17,18,19,23.. which i use).
My video-signal (PAL from cam) is shown very good, so that part works [noparse];)[/noparse] But there's still no overlay!
In the attachment is the program i adapted.
I'm not sure about the following lines:
OverlayAsm MOV _screenAddr,par ' Get address of screen memory MOV _syncPinMask,#%1000_0000 ' Sync is on pin P23 MOV _videoPinMask,#%0000_0100 ' Output is on pin P18 MOV _genPinMask,#%0000_1000 ' Output is on pin P19i know that #%1000_0000 is not 23, but i'm not able to change it to 23, because the error Timmoore mentioned.
So there is this part of code at the end of my file:
I adapted the Pins, but am not sure if this is right. And also: do i have to remove the top-instruction?!? (think it's twice then?)
also, in Version18, there are the following lines:
They don't appear in the Version12!
I'm very confused about which parts of the drivers i have to use! But i feel like being close to the solution, thanks to you!
Thank you very much!!
Hi propwell,
i think the HITToverlay-version 1.2 doesn't run with PAL, it's only for NTSC, try using HITT_Video_Overlay_017(018).spin
(or switch you CAM to NTSC output)
here is a good example with HITT_Video_Overlay_017.spin and source:
http://forums.parallax.com/forums/default.aspx?f=25&m=202781&g=263040#m263040
regards from Germany
@tharkun: hm well, changig to NTSC doesn't work for me, what a petty. Is it possible to change the 017 or 018 to PAL or why do you propose that? In your posted link it is also an NTSC-Cam used!
I'd be glad to change my existing file to PAL and to "working" [noparse];)[/noparse]
Thank you everybody,
Max
i now used the programcode of the Propeller_On_Screen_Drone, the HITT-Version 17.
I can find there several lines with PAL written in it:
in the code there are many points where the palModeValue appears, but i don't know where to change the PAL_Mode variable to 1, instead of 0?
Can please someone help me?
Thank you all very much!
[noparse]:edit:[/noparse] i added the whole project in the attachment. I tried to delete everything that hasn't anything to do with the Overlay ( Like the GPS and the accerometer...)
When i let it run, i get a flickering white line running repeatently from top to bottom, taking about 1,5 seconds. the source-video seems to be ok!
man, i feel to be so close, but i can't find where i have to switch it to PAL!
Post Edited (propwell) : 7/15/2009 10:59:06 AM GMT
It been a long time since I was on here but
http://orzparts.com/index.php?main_page=product_info&cPath=28&products_id=1243&gclid=CLutrfHCrq0CFQVvhwod_0WqlA
has the MAX7456 listed for $7.20 now.
I'm still looking for an easy to use driver.
I'm building a dual prop system and just need to offload the video. The props have enough to do.
PS. I measured 85ma current draw.