Hi, In response to your question regarding how far along in development I am, I have just delivered a prototype using the 4.3-inch display to my customer for...
1767
joe voytovich
jvoytovich
Jan 11, 2013 1:26 pm
Hi Steve, The PWM is a generic output since you would need a hardware connection to control the brightness through the backlighting control circuit. You COULD...
1768
Steve
sdwhite2576
Jan 21, 2013 7:42 pm
Hi Joe, Thanks for the reply and I'm sorry about the tardy response to you. If I understand you correctly, I would have to modify the display module, somehow...
1769
jvoytovich
Jan 21, 2013 8:33 pm
Hi Steve, Yes - you would need a hardware connection. We're using an HV9918 chip to drive the backlighting, and it's got a digital input DDIM which shuts off...
1770
sirspatch
Jan 24, 2013 9:43 pm
Hi I'm pretty sure you don't need to modify any hardware... If you use PWM channel 0, then that affects the brightness from the pulse width and period you set....
1771
sirspatch
Jan 24, 2013 11:48 pm
Hi I had this error when using a meta refresh tag by not putting a disappear/reappear instruction on the same line as "URL=", as in: <META HTTP-EQUIV="REFRESH"...
1772
sirspatch
Jan 24, 2013 11:56 pm
Hi I have been having GEM Studio instantly close while editing in the page functions window and pasting some text. This doesnt happen everytime, I have not...
1773
sirspatch
Jan 25, 2013 12:13 am
Hi Some sort of looping can be accomplished by using IF/THEN/ELSE, can get annoying though cause you have to be careful about the instructions not really...
1774
sirspatch
Jan 25, 2013 12:18 am
Hi There should be a field at the bottom of the screen when you select a widget that will allow you to specify the x/y location as well as height and width...
1775
sirspatch
Jan 25, 2013 12:24 am
Let me fix the invisible bits... Hi I had this error when using a meta refresh tag by not putting a disappear/reappear instruction on the same line as "URL=",...
1776
Steve
sdwhite2576
Feb 1, 2013 6:34 am
Hi Ash, You are correct. PWM channel 0 is connected to the back-lighting and I got it working as intended. As suggested by other members of the group, I used a...
1777
jvoytovich
Feb 1, 2013 1:34 pm
Some comments on the PWM period rate: What you're seeing is probably aliasing of the PWM rate and the refresh rate of the display. If you use a 100 Hz PWM and...
1778
sirspatch
Feb 18, 2013 3:26 am
Hi When using a StringField widget you can change the fill color which can use an alpha to add transparency. Setting 00 gives full transparency. The problem I...
1779
erikbrown83
Feb 20, 2013 5:23 pm
Sorry for the very late response. I don't now remember exactly the trouble I was having but likely I was running an older evaluation version of Gemstudio. I...
1780
BrianD
amulet_deters
Feb 21, 2013 5:43 pm
Using the SetX or SetY command with the current position is the suggested solution. This sets a "draw from scratch" flag when the reappear command is...
1781
jvoytovich
Feb 25, 2013 2:23 pm
I'm looking into adding PWM backlight control on a TFT display, and I've read that you can increase the LED drive current inversely with the duty cycle (ie, a...
1782
erikbrown83
Mar 22, 2013 7:53 pm
We just completed a project using a Hantronix HDA350-LGH display, which went very well. We are using an Amulet AGB75LC04-QU-E chip. That display has pins for...
1783
BrianD
amulet_deters
Mar 22, 2013 8:37 pm
Hi Erik, The Amulet chip uses the timings for HSYNC and VSYNC to frame the DE signal. Since the sync signals are not used on this particular display, you can...
1784
erikbrown83
Mar 29, 2013 6:23 pm
Thanks, Brian. I needed a better understanding of HYSNC and VSYNC in the first place and now I think I have that. I wasn't clear how you could get both of...
1785
erikbrown83
Apr 1, 2013 7:15 pm
Hi, We are using a 4-wire touch panel display (Hantronix700LT-2S). We are having a couple of issues, though they both must be a result of the same underlying...
1786
Jim Weber
amulet_weber
Apr 1, 2013 7:48 pm
Erik, The current release of GEMstudio is tolerant of the + and - lines being swapped, but not the X and the Y. This sounds like a classic case of the ...
1787
erikbrown83
Apr 2, 2013 10:35 pm
We swapped the X and Y pins, without paying much attention to plus or minus, and wouldn't you know it works perfectly. We figured that was what was needed, but...
1788
erikbrown83
Apr 24, 2013 7:26 pm
Hi, We have built a custom Amulet board with a programming port going to ProgU and a communication port (for the microcontroller for our product) going to...
1789
BrianD
amulet_deters
Apr 25, 2013 4:38 pm
Erik, The 'C' that you found in older posts refers to our Monochrome product. On our Color products, the character you see depends on the size of your flash,...
1790
ajitpachore
Apr 26, 2013 10:15 am
I am using AmuletResistive 7"GEM module. I am trying download your demo program "800 X 480 8 bit Demo". While downloading the program I get the message...
1791
erikbrown83
Apr 26, 2013 3:49 pm
I reset the flash as you suggested below and everything went exactly as you described. I have a working module again. I am running version 1.4.0.2 of...
1792
BrianD
amulet_deters
Apr 26, 2013 6:37 pm
... Yes, that could help, along with making sure your own Meta fires immediately by using an updateRate of "0,0.01". However, if your Host misses the command,...
1793
Mathew
mathewbassett
May 15, 2013 8:19 am
Hi there, I have been working on a project where I need to have two buttons which overlap each other but only one is visible at a time. I use a meta refresh to...
1794
BrianD
amulet_deters
May 15, 2013 5:53 pm
Hi Mathew, There is a simple solution to your problem. Split the Metas into two separate Metas such that nothing is ever reappeared except for when the...
1795
Mathew
mathewbassett
May 16, 2013 1:28 pm
Hi Brian, Thanks for your help on this. We have been trying to find a solution to this problem for ages and this works perfectly. Thanks again, Mathew...
