HX8347-D vs. HX8347-A

[FPeter]

all of the LCDs listed on ebay based on HX8347 are "-A"

i checked the spec.sheets of them and i found several small difference between the 2 register table, but i dont know if they are essential things or not...

is anybody tested the mikroe library with HX8347-A ?

[FPeter]

confirmed, -A works well with custom initialization method

i checked the register table of several other driver IC and i found that HX8347-A and -D differs from others in an another essential moment: row and column addressing - different register value, and most of them has 16bit addressing instead of 8bit/2 line mode

so, the custom initialization is not a hard point, but what about the custom memory addressing? is there any way to change the default addressing method of HX8347* to a custom one ?

[FPeter]

here is the HX8347-A in action:

HX8347-A

HX8347-A.jpg (100.54 KiB) Viewed 26574 times

works well with mikroe library, but some additional lines are required

here is a simple test code in mikroPascal for dsPIC, based on mikroe libs:

HX8347A_P.zip

HX8347-A Pascal

(81.19 KiB) Downloaded 1322 times

and an another one created with VisualTFT:

HX8347A_PVT.zip

HX8347-A VisualTFT Pascal

(104.77 KiB) Downloaded 1099 times

(dsPIC30F4013 @ FRC/x16, databits are connected to PORTB and PORTC)

[marko.ziv]

Hello,

thank you for sharing,
this topic is now sticky

Best Regards

[Fedepeleh]

Hello FPeter!
My name is Federico and I'm from Argentina!
I am a beginner in programming with TFT and would like to know if you can make a library for the driver ILI9325 to mikro mikro-Basic-C or visual TFT, because I can not make it work! Would greatly appreciate the help given!

[slavisa.zlatanovic]

Hi!

I'll pass your request to our software developers. It will be considered.

[FPeter]

Hello FPeter!
My name is Federico and I'm from Argentina!
I am a beginner in programming with TFT and would like to know if you can make a library for the driver ILI9325 to mikro mikro-Basic-C or visual TFT, because I can not make it work! Would greatly appreciate the help given!

Hello! sorry, but im not enough experienced to write the libs. the above attached codes are not full libraries, they are only some initialization modification in them. 8347D and A are differs only in their initialization method, but the addressing is the same > can be used with mikroe libs, but ILI9325 has a fully different addressing methot and i think that there is no way to get it work with mikre libs at this moment

[Prof.Wagner]

HI Peter,

About the LCD that was used with HX8347-A, do you have the Part# of this LCD?
I will buy it to use in my development until MikroEletronika has the new release of Visual TFT to differents controllers

regards

Prof. Wagner

here is the HX8347-A in action:

HX8347-A.jpg

works well with mikroe library, but some additional lines are required

here is a simple test code in mikroPascal for dsPIC, based on mikroe libs:

HX8347A_P.zip

and an another one created with VisualTFT:

HX8347A_PVT.zip

(dsPIC30F4013 @ FRC/x16, databits are connected to PORTB and PORTC)

[FPeter]

...

here You can find it:
http://cgi.ebay.com/3-2-inch-TFT-LCD-mo ... 4153980a16

[rmteo]

HI Peter,

About the LCD that was used with HX8347-A, do you have the Part# of this LCD?
I will buy it to use in my development until MikroEletronika has the new release of Visual TFT to differents controllers

regards

Prof. Wagner

Hi Wagner,

I have a spare one of those LCDs (see picture below) that I can send to you (or to your office in CA). Please let me know.

TEST-4.jpg (77.78 KiB) Viewed 25703 times

[Prof.Wagner]

here is the HX8347-A in action:

HX8347-A.jpg

works well with mikroe library, but some additional lines are required

here is a simple test code in mikroPascal for dsPIC, based on mikroe libs:

HX8347A_P.zip

and an another one created with VisualTFT:

HX8347A_PVT.zip

(dsPIC30F4013 @ FRC/x16, databits are connected to PORTB and PORTC)

HI Peter,

Do you have the PINOUT of this LCD with HX8347-A that you used in your tests?
I bought 2 units of this LCD but I dont have the pin out.
Could you help me sending the pin out or send me the link where has the pin out?
my email is wagner@idtla.com.br
Best Regards
Prof. Wagner

[FPeter]

HI Peter,

Do you have the PINOUT of this LCD with HX8347-A that you used in your tests?
I bought 2 units of this LCD but I dont have the pin out.
Could you help me sending the pin out or send me the link where has the pin out?
my email is wagner@idtla.com.br
Best Regards
Prof. Wagner

Hi! You can find it on the ebay link above

[Prof.Wagner]

HI Peter,

Do you have the PINOUT of this LCD with HX8347-A that you used in your tests?
I bought 2 units of this LCD but I dont have the pin out.
Could you help me sending the pin out or send me the link where has the pin out?
my email is wagner@idtla.com.br
Best Regards
Prof. Wagner

Hi! You can find it on the ebay link above

Hi FPETER,

Thank you for help me, but I have 3 questions , could you help me?

1- I can see that the pinout has DB0 to DB15 and the HX8347_B has DB0 to DB17 how must I conect it?
2- The pin out LED_BL of the HX8347_A is the HX8347_B LED_K or LED_A?
3- What is the TouchP_CLK,CD,DIM,BUSY and OUT? The HX8347_B has XR,XL,YR and YL.

Could you help me?
Best Regards

Wagner

[FPeter]

Hi FPETER,

Thank you for help me, but I have 3 questions , could you help me?

1- I can see that the pinout has DB0 to DB15 and the HX8347_B has DB0 to DB17 how must I conect it?
2- The pin out LED_BL of the HX8347_A is the HX8347_B LED_K or LED_A?
3- What is the TouchP_CLK,CD,DIM,BUSY and OUT? The HX8347_B has XR,XL,YR and YL.

Could you help me?
Best Regards

Wagner

1. HX8347 supports up to 18bit interface, but only the 16bit mode is wired on this PCB... SPI is not wired unfortunately...
2. as i remember, LED_BL is the positive of the LED backlight - but a serial resistor is required as current limiter: ~150-200Ohm for 5V input
3. there is an onboard ADS7843 compatible touch controller IC with SPI port, but alternatively You can remove this IC and You will find 4 SMD pads under it > just bridge them then You can find the XR,XL,YR,YL lines on the SPI pins

i got this schematic from ebay seller for this PCB:

3_2tft-320qvt.zip

(3.99 KiB) Downloaded 827 times

its a protel schematic file. as i remember, i made a pdf printout from it, i will try to find it at my home PC later...

[Prof.Wagner]

Hi FPETER,

Thank you for help me, but I have 3 questions , could you help me?

1- I can see that the pinout has DB0 to DB15 and the HX8347_B has DB0 to DB17 how must I conect it?
2- The pin out LED_BL of the HX8347_A is the HX8347_B LED_K or LED_A?
3- What is the TouchP_CLK,CD,DIM,BUSY and OUT? The HX8347_B has XR,XL,YR and YL.

Could you help me?
Best Regards

Wagner

1. HX8347 supports up to 18bit interface, but only the 16bit mode is wired on this PCB... SPI is not wired unfortunately...
2. as i remember, LED_BL is the positive of the LED backlight - but a serial resistor is required as current limiter: ~150-200Ohm for 5V input
3. there is an onboard ADS7843 compatible touch controller IC with SPI port, but alternatively You can remove this IC and You will find 4 SMD pads under it > just bridge them then You can find the XR,XL,YR,YL lines on the SPI pins

i got this schematic from ebay seller for this PCB:

3_2tft-320qvt.zip

its a protel schematic file. as i remember, i made a pdf printout from it, i will try to find it at my home PC later...

Hi FPeter,

Thank you again,

1- I am using the MikroMMB for PIC24 to tests and Visual TFT, so I need to use the same wire in this LCD. If I understood correctly I must to wire PMD7 to PMD0 from the MikroMMB for PIC24 to LCD_DB15 to LCD_DB8 of this LCD, because in the LCD of the MikroMMB for PIC24 start in the DB17 and not DB15. is it ok? You wired this way?
2- It is ok.
3- OK I will remove to test it. But I intend to use this lcd like a product I can not remove frequently. I will need to find another solution.

Regards

Wagner