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prenticedavid / MCUFRIEND_kbv

MCUFRIEND_kbv Library for Uno 2.4, 2.8, 3.5, 3.6, 3.95 inch mcufriend Shields
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Mcufriend white screen #202

Closed Yazanghou closed 2 years ago

Yazanghou commented 2 years ago

Hello programmers!

I have problem with my MCUFriend 2.4" tft, the screen always white and have no display😥

board controler is: SUM74HC245T D1409AFP71

And LCD_ID readreg show: Read Registers on MCUFRIEND UNO shield controllers either read as single 16-bit e.g. the ID is at readReg(0) or as a sequence of 8-bit values in special locations (first is dummy)

reg(0x0000) 00 00 ID: ILI9320, ILI9325, ILI9335, ... reg(0x0004) 00 00 00 00 Manufacturer ID reg(0x0009) 00 00 00 00 00 Status Register reg(0x000A) 00 00 Get Powsr Mode reg(0x000C) 00 00 Get Pixel Format reg(0x0061) 00 00 RDID1 HX8347-G reg(0x0062) 00 00 RDID2 HX8347-G reg(0x0063) 00 00 RDID3 HX8347-G reg(0x0064) 00 00 RDID1 HX8347-A reg(0x0065) 00 00 RDID2 HX8347-A reg(0x0066) 00 00 RDID3 HX8347-A reg(0x0067) 00 00 RDID Himax HX8347-A reg(0x0070) 00 00 Panel Himax HX8347-A reg(0x00A1) 00 00 00 00 00 RD_DDB SSD1963 reg(0x00B0) 00 00 RGB Interface Signal Control reg(0x00B4) 00 00 Inversion Control reg(0x00B6) 00 00 00 00 00 Display Control reg(0x00B7) 00 00 Entry Mode Set reg(0x00BF) 00 00 00 00 00 00 ILI9481, HX8357-B reg(0x00C0) 00 21 00 00 00 00 00 00 00 Panel Control reg(0x00C8) 00 21 00 00 00 00 00 00 00 00 00 00 00 GAMMA reg(0x00CC) 00 A2 Panel Control reg(0x00D0) 00 21 00 Power Control reg(0x00D2) 00 A2 A2 A2 A2 NVM Read reg(0x00D3) 00 A2 A2 A2 ILI9341, ILI9488 reg(0x00DA) 00 00 RDID1 reg(0x00DB) 00 00 RDID2 reg(0x00DC) 00 00 RDID3 reg(0x00E0) 00 00 06 02 05 03 01 47 86 23 03 04 00 00 00 00 GAMMA-P reg(0x00E1) 00 00 1A 20 07 06 05 3A 82 40 04 18 07 3F 3F 07 GAMMA-N reg(0x00EF) 00 00 00 00 00 00 ILI9327 reg(0x00F2) 00 00 00 00 00 00 00 00 00 00 00 00 Adjust Control 2 reg(0x00F6) 00 00 00 00 Interface Control

I have try a lot of solution without and still white!

How to fix this problem?

prenticedavid commented 2 years ago

I do not recognise this display. Please post a link to the actual item that you have bought. e.g. Ebay sale page.

You can try forcing tft.begin(0x9329);

David.

Yazanghou commented 2 years ago

Thanks But 0x9329 dosen't work

FO1ORZOJY4ODKQL

This is my tft i bought it from near electroncs saler

Words on ICs: SUM74HC245T D1409AFP71

Yazanghou commented 2 years ago

Also when I run aspect.ino from mcufriends_kpv library I get ID 0xA2A2

prenticedavid commented 2 years ago

Well, that looks like a regular Mcufriend Shield. I would try 0x9320, 0x9325, 0x9329, ...

If none of these show anything, I would take it back to the local electronics seller.

David.

Yazanghou commented 2 years ago

Ok I will try.... Thanks 👍🏻

Yazanghou commented 2 years ago

Finally the problem solved... I was trying to run it on arduino nano but it didn't work Now it's working fine on Uno!

Is there a way to run it on nano?

prenticedavid commented 2 years ago

Please explain. God gave you a Shield. God gave you a Uno. You plug them together as Nature intended.

Please tell me whether the readreg report was from a Uno or from a Nano. Please tell me which ID works on the Uno.

You can use a Nano with a Shield. There are Adapters made for a Nano. i.e. they have sockets for a Nano and sockets for a Shield.

David.

Yazanghou commented 2 years ago

My project requires small size as possible The readreg and ID was on nano.. Thank you ❤️ I will search for this adapter

prenticedavid commented 2 years ago

Please run the readreg sketch on the Uno. Paste the result here.

Yazanghou commented 2 years ago

ID now 0x9340

readreg: Read Registers on MCUFRIEND UNO shield controllers either read as single 16-bit e.g. the ID is at readReg(0) or as a sequence of 8-bit values in special locations (first is dummy)

reg(0x0000) 00 00 ID: ILI9320, ILI9325, ILI9335, ... reg(0x0004) 00 00 00 00 Manufacturer ID reg(0x0009) 00 00 61 00 00 Status Register reg(0x000A) 00 08 Get Power Mode reg(0x000C) 00 06 Get Pixel Format reg(0x0061) 00 00 RDID1 HX8347-G reg(0x0062) 00 00 RDID2 HX8347-G reg(0x0063) 00 00 RDID3 HX8347-G reg(0x0064) 00 00 RDID1 HX8347-A reg(0x0065) 00 00 RDID2 HX8347-A reg(0x0066) 00 00 RDID3 HX8347-A reg(0x0067) 00 00 RDID Himax HX8347-A reg(0x0070) 00 00 Panel Himax HX8347-A reg(0x00A1) 00 00 00 00 00 RD_DDB SSD1963 reg(0x00B0) 00 00 RGB Interface Signal Control reg(0x00B4) 00 02 Inversion Control reg(0x00B6) 00 0A 82 27 04 Display Control reg(0x00B7) 00 07 Entry Mode Set reg(0x00BF) 00 00 00 00 00 00 ILI9481, HX8357-B reg(0x00C0) 00 21 00 00 00 00 00 00 00 Panel Control reg(0x00C8) 00 00 00 00 00 00 00 00 00 00 00 00 00 GAMMA reg(0x00CC) 00 30 Panel Control reg(0x00D0) 00 00 00 Power Control reg(0x00D2) 00 00 00 02 02 NVM Read reg(0x00D3) 00 00 93 40 ILI9341, ILI9488 reg(0x00D4) 00 00 00 00 Novatek ID reg(0x00DA) 00 00 RDID1 reg(0x00DB) 00 00 RDID2 reg(0x00DC) 00 00 RDID3 reg(0x00E0) 00 08 0E 12 05 03 09 47 86 2B 0B 04 00 00 00 00 GAMMA-P reg(0x00E1) 00 08 1A 20 07 0E 05 3A 8A 40 04 18 0F 3F 3F 0F GAMMA-N reg(0x00EF) 00 00 00 00 00 00 ILI9327 reg(0x00F2) 00 02 02 02 02 02 02 02 02 02 02 02 Adjust Control 2 reg(0x00F6) 00 01 00 00 Interface Control

prenticedavid commented 2 years ago

Thanks for the report.

reg(0x00D3) 00 00 93 40 ILI9341, ILI9488

You have a genuine Ilitek ILI9340 controller. Everything should work out of the box.

If you want it work with a Nano, connect all the pins i.e. D2-D13, A0-A4, GND, 3.3V.

David.