From: Tim <tim...@gm...> - 2007-12-07 22:03:15
|
When I boot the gumstix, I see a gumstix splash with the logo and text "Gumstix Inc." Does anybody know of a way to change this splash screen? I had assumed that I could replace a ppm somewhere on the patched linux kernel but don't know where to look. Thanks, Tim |
From: Andrew M. <mac...@gm...> - 2007-12-07 22:26:22
|
Hi Tim, I don't have a display myself, but I think that this is set in target/device/Gumstix/kernel-patches/gumstix-fb-logo.patch If not, then it is probably in one of the other files in that directory. Andrew On 07/12/2007, Tim <tim...@gm...> wrote: > > When I boot the gumstix, I see a gumstix splash with the logo and text > "Gumstix Inc." Does anybody know of a way to change this splash screen? I > had assumed that I could replace a ppm somewhere on the patched linux kernel > but don't know where to look. > > Thanks, > Tim > > ------------------------------------------------------------------------- > SF.Net email is sponsored by: > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users > > |
From: Demetris Z. <fgc...@cy...> - 2007-12-07 23:11:21
|
I want to ask about C and Serial communication I have my PIC sending out in Ascii "Volt" and then in Ascii a number "123" so it's ("Volt","123") now i want to read that from C on linux, so the code is: char ch[100]; char *mychar = "V"; while(!volt_confirm) { Read(fd, & ch,1); If (*mychar == ch[0]) { Printf("Voltage: %s\n",ch); Volt_confirm = 1; } } But that gives me "V Some Garbage" How could I correctly wait for the pic to send the "Volt" characters and then read out the Numbers that follow? Please help me out here. |
From: DJ D. <dj...@de...> - 2007-12-07 23:16:46
|
There are two fundamental C problems here: "Demetris Zavorotnichenko" <fgc...@cy...> writes: > read(fd, & ch,1); You are reading one character, but not the rest. > printf("Voltage: %s\n",ch); You are telling printf to print a string, but passing it a character instead. I think you want to try something like this: char buf[20]; read(fd, & buf[0], 1); if (buf[0] == 'V') { read (fd, & buf[1], 6); printf("Voltage: %s\n", & buf[4]); } That will read in the remainder of the string, and pass the string (or at least part of the string) to printf. |
From: Dave H. <dhy...@gm...> - 2007-12-07 23:17:05
|
Hi Demetris, > I have my PIC sending out in Ascii "Volt" and then in Ascii a number "123" > so it's ("Volt","123") > > > > now i want to read that from C on linux, > so the code is: > > char ch[100]; > > char *mychar = "V"; > > > > while(!volt_confirm) > > { > > Read(fd, & ch,1); This reads a single character. > > If (*mychar == ch[0]) > > { > > Printf("Voltage: %s\n",ch); %s asks to print a null terminated string. ch[0] has a 'V' in it. ch[1] and onwards has some random garbage in it because it's uninitialized. You probably want to read single characters until some terminating condition (like a newline or carriage return), and then replace that terminator with a null character and then print the string. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Demetris Z. <fgc...@cy...> - 2007-12-07 23:23:00
|
Heh. Completely forgot about Serial communication. I REALLY appreciate the help on this guys. After working on something for a long time you don't notice the details anymore :) Once again Tnx Dave and DJ -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Dave Hylands Sent: Saturday, December 08, 2007 1:17 AM To: General mailing list for gumstix users. Subject: Re: [Gumstix-users] C Serial Question, Please help Hi Demetris, > I have my PIC sending out in Ascii "Volt" and then in Ascii a number "123" > so it's ("Volt","123") > > > > now i want to read that from C on linux, > so the code is: > > char ch[100]; > > char *mychar = "V"; > > > > while(!volt_confirm) > > { > > Read(fd, & ch,1); This reads a single character. > > If (*mychar == ch[0]) > > { > > Printf("Voltage: %s\n",ch); %s asks to print a null terminated string. ch[0] has a 'V' in it. ch[1] and onwards has some random garbage in it because it's uninitialized. You probably want to read single characters until some terminating condition (like a newline or carriage return), and then replace that terminator with a null character and then print the string. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Demetris Z. <fgc...@cy...> - 2007-12-07 23:35:46
|
Ok, now an even Stupider question Now I have an array "char" in which char[4] - char[6] are ascii numbers How can I convert this numbers to a usable decimal value? For instance the array will contain "460" and I want to make that into an int whatever = 460 (Please help out here) |
From: Mark H. <ma...@th...> - 2007-12-07 23:41:29
|
If I'm understanding you correctly, have a look at the sscanf() function. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:36 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Ok, now an even Stupider question Now I have an array "char" in which char[4] - char[6] are ascii numbers How can I convert this numbers to a usable decimal value? For instance the array will contain "460" and I want to make that into an int whatever = 460 (Please help out here) ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Demetris Z. <fgc...@cy...> - 2007-12-07 23:49:04
|
Can't I do it like this? : Char myarray[100] = "Volt1234"; Int Num1 = atoi(&myarray[5]); That would give me Num1 = 2 Is this correct ? -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Mark Hargrove Sent: Saturday, December 08, 2007 1:41 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help If I'm understanding you correctly, have a look at the sscanf() function. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:36 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Ok, now an even Stupider question Now I have an array "char" in which char[4] - char[6] are ascii numbers How can I convert this numbers to a usable decimal value? For instance the array will contain "460" and I want to make that into an int whatever = 460 (Please help out here) ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Mark H. <ma...@th...> - 2007-12-07 23:51:51
|
Actually, that will give you Num1 = 234 -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:49 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Can't I do it like this? : Char myarray[100] = "Volt1234"; Int Num1 = atoi(&myarray[5]); That would give me Num1 = 2 Is this correct ? -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Mark Hargrove Sent: Saturday, December 08, 2007 1:41 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help If I'm understanding you correctly, have a look at the sscanf() function. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:36 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Ok, now an even Stupider question Now I have an array "char" in which char[4] - char[6] are ascii numbers How can I convert this numbers to a usable decimal value? For instance the array will contain "460" and I want to make that into an int whatever = 460 (Please help out here) ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Mark H. <ma...@th...> - 2007-12-07 23:55:24
|
If you want the indvidual digit converted to an int, try: Num1 = (int) myarray[5] - 48; ...which works for 8-bit chars. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:49 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Can't I do it like this? : Char myarray[100] = "Volt1234"; Int Num1 = atoi(&myarray[5]); That would give me Num1 = 2 Is this correct ? -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Mark Hargrove Sent: Saturday, December 08, 2007 1:41 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help If I'm understanding you correctly, have a look at the sscanf() function. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:36 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Ok, now an even Stupider question Now I have an array "char" in which char[4] - char[6] are ascii numbers How can I convert this numbers to a usable decimal value? For instance the array will contain "460" and I want to make that into an int whatever = 460 (Please help out here) ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Demetris Z. <fgc...@cy...> - 2007-12-07 23:58:49
|
I actually wanted the whole 3 digit number converted, so Int Num1 = atoi(&myarray[5]); is perfect, almost forgot about this command :) -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Mark Hargrove Sent: Saturday, December 08, 2007 1:55 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help If you want the indvidual digit converted to an int, try: Num1 = (int) myarray[5] - 48; ...which works for 8-bit chars. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:49 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Can't I do it like this? : Char myarray[100] = "Volt1234"; Int Num1 = atoi(&myarray[5]); That would give me Num1 = 2 Is this correct ? -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Mark Hargrove Sent: Saturday, December 08, 2007 1:41 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help If I'm understanding you correctly, have a look at the sscanf() function. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:36 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Ok, now an even Stupider question Now I have an array "char" in which char[4] - char[6] are ascii numbers How can I convert this numbers to a usable decimal value? For instance the array will contain "460" and I want to make that into an int whatever = 460 (Please help out here) ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Black, M. <Michael.Black@EssexCorp.com> - 2007-12-08 14:44:21
|
>From what you're showing it sounds like you plan on passing multiple values...Volt1, Volt2, etc? First thing I'd do is improve your format and send "Volt1=3D234" A much better way to do your atoi: n=3Dsscanf(myarray,"Volt1=3D%d",&v1)); n+=3Dsscanf(myarray,"Volt2=3D%d",&v2)); n+=3Dsscanf(myarray,"Volt3=3D%d",&v3)); if (n=3D=3D0) printf("Huh '%s' ??\n",myarray); printf("Current values v1=3D%3d v2=3D%3d, v3=3D%3d\n",v1,v2,v3); Most people don't know you can use sscanf like this. The v1,v2,v3 values will only be updated when the appropriate "Volt*" string matches. So these three statements in sequence like this will parse all 3 strings being sent in any order. Also, sscanf will return a value of 1 when it finds it, and zero otherwise. You can use that notion to do other things like above which prints out when it can't find an appropriate string to parse. You also need to watch out for your serial read. Serial I/O is NOT guaranteed so you may miss a character which could mess up your read routine. I always use a timeout for when I expect a character. ___________________ Michael D. Black Essex bl...@es... -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 5:59 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help I actually wanted the whole 3 digit number converted, so Int Num1 =3D atoi(&myarray[5]); is perfect, almost forgot about this command :) -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Mark Hargrove Sent: Saturday, December 08, 2007 1:55 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help If you want the indvidual digit converted to an int, try: Num1 =3D (int) myarray[5] - 48; ...which works for 8-bit chars. -M.=20 -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:49 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Can't I do it like this? : Char myarray[100] =3D "Volt1234"; Int Num1 =3D atoi(&myarray[5]); That would give me Num1 =3D 2 Is this correct ? -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Mark Hargrove Sent: Saturday, December 08, 2007 1:41 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help If I'm understanding you correctly, have a look at the sscanf() function. -M. -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Friday, December 07, 2007 4:36 PM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] C Serial Question, Please help Ok, now an even Stupider question Now I have an array "char" in which char[4] - char[6] are ascii numbers How can I convert this numbers to a usable decimal value? For instance the array will contain "460" and I want to make that into an int whatever =3D 460 (Please help out here) ------------------------------------------------------------------------ - SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. 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From: Demetris Z. <fgc...@cy...> - 2007-12-07 23:50:32
|
Actually that would give me Num1 = 234 ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Demetris Z. <fgc...@cy...> - 2007-12-10 20:12:52
|
Has anyone interfaced the LS037V7DW01 LCD ? If so could you please tell me your BootArgs Setup for the bootloader? |
From: Demetris Z. <fgc...@cy...> - 2007-12-11 14:57:26
|
What is the svn directory for the buildroot for Verdex ? |
From: Dave H. <dhy...@gm...> - 2007-12-11 15:11:23
|
Hi Demetris, On Dec 11, 2007 6:56 AM, Demetris Zavorotnichenko <fgc...@cy...> wrote: > What is the svn directory for the buildroot for Verdex ? There is no longer any seperate directory for verdex. verdex and connex are both in the same tree now. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Demetris Z. <fgc...@cy...> - 2007-12-11 15:31:44
|
Tnx dave. I wanted to ask something else. I have a bunch of software that I wrote for connex. I guess if I just copy the files to verdex they should work. I mean.. linux is linux no matter where you go :) Am I correct here? -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Dave Hylands Sent: Tuesday, December 11, 2007 5:11 PM To: General mailing list for gumstix users. Subject: Re: [Gumstix-users] verdex SVN ? Hi Demetris, On Dec 11, 2007 6:56 AM, Demetris Zavorotnichenko <fgc...@cy...> wrote: > What is the svn directory for the buildroot for Verdex ? There is no longer any seperate directory for verdex. verdex and connex are both in the same tree now. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Dave H. <dhy...@gm...> - 2007-12-11 15:55:21
|
Hi Demetris, > I have a bunch of software that I wrote for connex. > > I guess if I just copy the files to verdex they should work. I mean.. linux > is linux no matter where you go :) > > Am I correct here? Pretty much. I had to make a few changes to some of the kernel side drivers I wrote, but so far haven't had to make any changes to user mode stuff. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |
From: Marc H. <mhu...@lo...> - 2007-12-11 22:11:47
|
-----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Tuesday, December 11, 2007 10:31 AM To: 'General mailing list for gumstix users.' Subject: Re: [Gumstix-users] verdex SVN ? Tnx dave. I wanted to ask something else. I have a bunch of software that I wrote for connex. I guess if I just copy the files to verdex they should work. I mean.. linux is linux no matter where you go :) Am I correct here? -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Dave Hylands Sent: Tuesday, December 11, 2007 5:11 PM To: General mailing list for gumstix users. Subject: Re: [Gumstix-users] verdex SVN ? Hi Demetris, On Dec 11, 2007 6:56 AM, Demetris Zavorotnichenko <fgc...@cy...> wrote: > What is the svn directory for the buildroot for Verdex ? There is no longer any seperate directory for verdex. verdex and connex are both in the same tree now. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Demetris Z. <fgc...@cy...> - 2007-12-11 20:34:56
|
Did anyone had a chance to interface the LS037V7DW01 LCD ? If so then please help out here to set up the bootargs and PXAregs |
From: Demetris Z. <fgc...@cy...> - 2007-12-11 22:27:59
|
How could I test if the LCD works? What's the command to display Something (anything ) on the Framebuffer ? |
From: Marc H. <mhu...@lo...> - 2007-12-12 01:00:01
|
Demetris, With the newer builds once the display is configured correctly it will automatically display the gumstix splash screen and give you a login prompt on power up. You might want to take a look at this page for pointers on settings for various displays. http://docwiki.gumstix.org/Display#Setting_up_the_framebuffer_on_gumstix Marc -----Original Message----- From: gum...@li... [mailto:gum...@li...] On Behalf Of Demetris Zavorotnichenko Sent: Tuesday, December 11, 2007 5:28 PM To: 'General mailing list for gumstix users.' Subject: [Gumstix-users] LCD Test How could I test if the LCD works? What's the command to display Something (anything ) on the Framebuffer ? ------------------------------------------------------------------------- SF.Net email is sponsored by: Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ gumstix-users mailing list gum...@li... https://lists.sourceforge.net/lists/listinfo/gumstix-users |
From: Demetris Z. <fgc...@cy...> - 2007-12-12 01:18:50
|
I know that, but will the display still show something while I am changing and setting the pxaregs ? After Gumstix has loaded. |
From: Demetris Z. <fgc...@cy...> - 2007-12-12 02:42:56
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Hi everyone. I'm trying to interface the LS037V7DW01 Sharp, I am pretty sure that my connections are correct. I have hardwired the LCD so that it has the following configuration : Mode VGA 480RGBx640 Conventional scanning X,1 X,Y Inverted scanning 1,Y <- X,Y Vertical/horizontal Synchronizing FALL edge of clock (CLKIN) Selection for Red Green and Blue FALL edge of clock (CLKIN) But please if someone could take a glimps at the datasheet and coorect me on the pxaregs settings that I have What I have figured out so far is this: LCD Controller Control Register 0 (7-23) LCCR0 0x00300879 00000000 00110000 00001000 01111001 LCCR0_ENB 1 LCD controller enable LCCR0_CMS 0 LCD monochrome operation enable LCCR0_SDS 0 LCD dual panel display enable LCCR0_LDM 1 LCD disable done IRQ disable LCCR0_SFM 1 LCD start of frame IRQ disable LCCR0_IUM 1 LCD fifo underrun error IRQ disable LCCR0_EFM 1 LCD end of frame IRQ disable LCCR0_PAS 0 LCD active display enable LCCR0_DPD 0 LCD send 8 pixel on L_DD7:0external link at each clock LCCR0_DIS 0 LCD controller disable LCCR0_QDM 1 LCD quick disable IRQ disable LCCR0_PDD 0 LCD palette DMA request delay LCCR0_BM 1 LCD branch start IRQ disable LCCR0_OUM 1 LCD fifo underrun IRQ disable LCD Controller Control Register 1 (7-26) LCCR1_PPL 479 LCD pixels per line (+1) LCCR1_HSW 1 LCD horizontal sync pulse width (+1) LCCR1_ELW 88 LCD end of line pixel clock wait count (+1) LCCR1_BLW 88 LCD beginning of line pixel clock wait count (+1) LCD Controller Control Register 2 (7-28) LCCR2_LPP 639 LCD lines per panel (+1) LCCR2_VSW 0 LCD vertical sync pulse width (+1) LCCR2_EFW 1 LCD end of frame line clock wait count (+1) LCCR2_BFW 1 LCD beginning of frame line clock wait count (+1) LCD Controller Control Register 3 (7-31) LCCR3_PCD 3 LCD pixel clock divisor (+1) LCCR3_ACB 0 LCD AC bias pin frequency (+1) LCCR3_API 0 LCD AC bias pin transitions per interrupt LCCR3_VSP 0 LCD L_FCLK vertical sync polarity active low LCCR3_HSP 0 LCD L_LCLK horizontal sync polarity active low LCCR3_PCP 1 LCD data sampled on falling edge of L_PCLK LCCR3_OEP 0 LCD L_BIAS output enable active low LCCR3_BPP 16 LCD bits per pixel LCCR3_DPC 0 LCD double pixel clock rate at L_PCLK |