Search found 246 matches

by Daniel Divino
Thu Jul 18, 2019 4:22 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: EVE2 QSPI not responding
Replies: 5
Views: 291

Re: EVE2 QSPI not responding

Hey there Broth! Welcome to the forums! Could you provide the initialization code that you are using for your setup? In all of our demos we send the following to the display: Gpu_Hal_SetSPI(host, GPU_SPI_SINGLE_CHANNEL, GPU_SPI_ONEDUMMY); /* Access address 0 to wake up the chip */ Gpu_HostCommand(ho...
by Daniel Divino
Mon Jul 08, 2019 4:00 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Updating Button Text And Colour
Replies: 5
Views: 257

Re: Updating Button Text And Colour

Hi Andrew, I'm sorry to hear that your experience with our EVE was not optimal. Understandably, the FT812/813, though very capable, has quite a steep learning curve. I'm glad to hear that you would be willing to try out our GTT. Our GTT will be much easier to develop for, and I'm confident you'll fi...
by Daniel Divino
Mon Jul 08, 2019 3:56 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: EVE2-38G question about of the touch calibration
Replies: 9
Views: 1224

Re: EVE2-38G question about of the touch calibration

Hi Suresh, Thank you for clarifying. Could you try replacing the following lines in MO_Calibrate: //Ft_Gpu_Hal_WrMemFromFlash(phost,RAM_G,TOUCH_DATA_U8,sizeof(TOUCH_DATA_U8)); Ft_Gpu_Hal_WrMemFromFlash(phost,RAM_CMD,TOUCH_DATA_U8,sizeof(TOUCH_DATA_U8)); with Gpu_Hal_WrCmdBuf(phost, CTOUCH_CONFIG_DAT...
by Daniel Divino
Fri Jul 05, 2019 8:36 am
Forum: EVE2 & EVE3 SPI TFT's
Topic: EVE2-38G question about of the touch calibration
Replies: 9
Views: 1224

Re: EVE2-38G question about of the touch calibration

Hi Suresh,

It looks like your photo didn't upload properly. Please try uploading the photo again.

Also, are you sure you are using a capacitive touch screen? In your other posts, it looks like you are using a resistive touch screen.

Cheers,
Daniel
by Daniel Divino
Thu Jul 04, 2019 5:05 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: EVE2-38A-BLH-TPR Screen resolution & Touch screen issue
Replies: 4
Views: 365

Re: EVE2-38A-BLH-TPR Screen resolution & Touch screen issue

Hi Suresh, Each resistive touch panel has it's own calibration values, and therefore, values that work for my display may not work properly for yours. I strongly suggest you try implementing the calibration function into your code and extracting the appropriate calibration values that way. Cheers, D...
by Daniel Divino
Thu Jul 04, 2019 5:03 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Updating Button Text And Colour
Replies: 5
Views: 257

Re: Updating Button Text And Colour

Hi Andrew, Welcome to the forums! Here's a piece of code that will change the state of the button when it's held down. int tag = 0; while (1) { tag = Ft_Gpu_Hal_Rd8(phost, REG_TOUCH_TAG); Ft_Gpu_CoCmd_Dlstart(phost); Ft_App_WrCoCmd_Buffer(phost, CLEAR_COLOR_RGB(255, 255, 255)); Ft_App_WrCoCmd_Buffer...
by Daniel Divino
Wed Jul 03, 2019 5:17 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: EVE2-38A-BLH-TPR Screen resolution & Touch screen issue
Replies: 4
Views: 365

Re: EVE2-38A-BLH-TPR Screen resolution & Touch screen issue

Hi Suresh, 1) The EV2-38A is a little bit different from our other displays, as it is a 4.3" display cut in half. This means that it needs to use the 4.3" timing data in order to operate properly. Due to this, the FT81X's calibration command won't operate properly. That said, we have made a calibrat...
by Daniel Divino
Wed Jun 19, 2019 2:50 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: EVE2-38G question about of the touch calibration
Replies: 9
Views: 1224

Re: EVE2-38G question about of the touch calibration

Hi Chris, I have created a program that will specifically load the capacitive touch calibration file onto the EVE display. The example includes 2 different calibration functions. One function (Calibrate_Cap_Touch) will read the calibration values from the SD card and upload them to the display. You ...
by Daniel Divino
Wed Jun 12, 2019 3:15 pm
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Help with VK204-25 I2C communication
Replies: 9
Views: 930

Re: Help with VK204-25 I2C communication

Hey Leonardo,

Any luck establishing communication with the VK204-25?

Cheers,
Daniel
by Daniel Divino
Mon Jun 10, 2019 4:15 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: require code for designing on EVE2-70A
Replies: 17
Views: 954

Re: require code for designing on EVE2-70A

Hi Madhusudan.Jadhav, So you are not able to read '7C' from the FT81X during startup? The FT81X does require some time to start up. Could you try implementing a short delay at the beginning of your code to allow the EVE to boot properly? I'd say you start with 1000mS to start with. Once you have con...
by Daniel Divino
Thu Jun 06, 2019 10:39 am
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 1631

Re: Make EVE2-29A look like a green crt display

Haha I hope it comes in a timely manner. I'd like to see a photo of the project once everything is all said and done.
by Daniel Divino
Wed May 29, 2019 12:31 pm
Forum: EVE2 & EVE3 SPI TFT's
Topic: Make EVE2-29A look like a green crt display
Replies: 16
Views: 1631

Re: Make EVE2-29A look like a green crt display

Hi Bob, Yeah, I guess my comments in the code were pretty vague eh? It also looks like the resolution values listed in the calculations are wrong as well. I must have been daydreaming of the weekend when I wrote those comments haha. The BITMAP_TRANSFORM registers are described in sections 4.12 to 4....
by Daniel Divino
Wed May 29, 2019 9:29 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Help with VK204-25 I2C communication
Replies: 9
Views: 930

Re: Help with VK204-25 I2C communication

Hi Leonardo,

What pins are you connected to on the Arduino? Have you tried swapping the I2C RX and TX lines?

Cheers,
Daniel
by Daniel Divino
Tue May 28, 2019 10:08 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Help with VK204-25 I2C communication
Replies: 9
Views: 930

Re: Help with VK204-25 I2C communication

Hi Leonardo,

My bad. The 'H's were meant to denote that the values were in hex.

Are any jumpers present on the J0-J3 pins? Also, what commands/data are you sending to the display?

Cheers,
Daniel
by Daniel Divino
Tue May 28, 2019 9:00 am
Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
Topic: Help with VK204-25 I2C communication
Replies: 9
Views: 930

Re: Help with VK204-25 I2C communication

Hi Leonardo, It's good to see some of our older display models are still kicking around! The baud rate and I2C address on your Rev 1.22 VK204-25 can be configured by populating jumpers on the J0-J3 pins. According to section 2.1.3 in the VK204-25 Rev 1.23 classic manual, it looks like your display i...