Tennsy 4.0 and TFT 3.5 INCH

[jean]

Hello everyone, I have been trying for several days to get this screen to work with the Tennsy 4.0 but nothing works. I probably have to get mixed up in the connections, could you help me?

https://www.amazon.fr/dp/B08CNFWHRN?psc=1&ref=ppx_yo2ov_dt_b_product_details

 

[jean]

here is what the serial wrote to me with the library of Kurts_ILI9488_t3n_and_clip_tests:

Begin: CS:10, DC:8RST: 9
Size of RAFB: 2
::begin 2000398c 255 255 255
ILI9488_t3::begin - End
Display Power Mode: 0x0
MADCTL Mode: 0x0
Pixel Format: 0x0
Image Format: 0x0
Self Diagnostic: 0x0
Just before frist draw Test Screen
Use FB: 0 235
1

 

[PaulStoffregen]

In Arduino IDE, click File > Examples > ILI9488_t3 > graphicstest9488.

I probably have to get mixed up in the connections, could you help me?

To help with the connections, we'll need to see photos of your wiring.

 

[jean]

bonjour Paul,
voici ma configuration de broches

//#définir TRY_EXTMEM
#ifdef TRY_EXTMEM
#si !défini(ARDUINO_TEENSY41)
#undef TRY_EXTMEM
#si défini(ENABLE_EXT_DMA_UPDATES)
#error "Cette version ne fonctionne qu'avec la mémoire externe"
#fin si
#fin si
#fin si

#include <Adafruit_GFX.h> // Bibliothèque graphique principale
#include <ili9488_t3_font_Arial.h>
#include <ili9488_t3_font_ArialBold.h>
#include <ILI9488_t3.h>
#include <Fonts/FreeMonoBoldOblique12pt7b.h>
#include <Fonts/FreeSerif12pt7b.h>

#définir ROTATION 3

#include "SPI.h"

//#définir USE_SPI1
#si défini(USE_SPI1)
#if défini(__IMXRT1062__) // Teensy 4.x
#définir TFT_DC 2
#définir TFT_CS 0
#définir TFT_RST 3

#définir TFT_SCK 27
#définir TFT_MISO 1
#définir TFT_MOSI 26

#autre
#définir TFT_DC 8
#define TFT_CS 10 // n'importe quelle broche fonctionnera, pas le matériel
#définir TFT_RST 9
#définir TFT_SCK 13
#définir TFT_MISO 12
#définir TFT_MOSI 11
//#définir DEBUG_PIN 13
#fin si
ILI9488_t3 tft = ILI9488_t3(&SPI1, TFT_CS, TFT_DC, TFT_RST, TFT_MOSI, TFT_SCK, TFT_MISO) ;

//--------------------------------------------------
#else // broches par défaut
#define TFT_DC 8 // uniquement la broche CS
#define TFT_CS 10 // en utilisant la broche standard
#définir TFT_RST 9
ILI9488_t3 tft = ILI9488_t3(&SPI, TFT_CS, TFT_DC, TFT_RST) ;
//--------------------------------------
#fin si

 

[jean]

Salut Paul,
pour ans l'IDE Arduino, cliquez sur Fichier > Exemples > ILI9488_t3 > graphiquestest9488.

mais rien n'apparaît à l'écran

:: début 20000fa4 255 255 255
ILI9488_t3 :: début - Fin
Test ILI9488 !
Mode d'alimentation d'affichage : 0x0
Mode MADCTL : 0x0
Format de pixels : 0x0
Format d'image : 0x0
Auto-diagnostic : 0x0
Temps de référence (microsecondes)
Remplissage d'écran 615238
Envoyez un SMS au 10891
Lignes 154195
Lignes Horiz/Verte 51150
Rectangles (contour) 28387
Rectangles (remplis) 1486946
Cercles (remplis) 177686
Cercles (contour) 104393
Triangles (contour) 33411
Triangles (remplis) 487288
Rectangulaires arrondis (contour) 54434
Rectangulaires arrondis (remplis) 1626112
Fait!

 

[jean]

Tennsy 9 => screen DC/RS
Tennsy 10 => screen CS
Tennsy 8 => screen RESET

 

[kd5rxt-mark]

here is what the serial wrote to me with the library of Kurts_ILI9488_t3n_and_clip_tests:

Begin: CS:10, DC:8RST: 9
Size of RAFB: 2
::begin 2000398c 255 255 255
ILI9488_t3::begin - End
Display Power Mode: 0x0
MADCTL Mode: 0x0
Pixel Format: 0x0
Image Format: 0x0
Self Diagnostic: 0x0
Just before frist draw Test Screen
Use FB: 0 235
1

Note that this report (pertinent line in RED above) does not agree with your most recent post:

Tennsy 9 => screen DC/RS
Tennsy 10 => screen CS
Tennsy 8 => screen RESET

It appears like DC/RS & RESET are swapped.

Hope that helps . . .

Mark J Culross
KD5RXT

 

[jean]

Bonjour,
Mark J Culross
KD5RXT
, j'ai changé le port série ici :
mais toujours pas d'affichage

:: début 20000fa4 255 255 255
ILI9488_t3 :: début - Fin
Test ILI9488 !
Mode d'alimentation d'affichage : 0x0
Mode MADCTL : 0x0
Format de pixels : 0x0
Format d'image : 0x0
Auto-diagnostic : 0x0
Temps de référence (microsecondes)
Remplissage d'écran 616519
Texte 15854
Lignes 203019
Lignes Horiz/Vert 51501
Rectangles (contour) 28781
Rectangles (remplis) 1491603
Cercles (remplis) 206779
Cercles (contour) 155571
Triangles (contour) 43372
Triangles (remplis) 500837
Rectangulaires arrondis (contour) 70061
Rectangulaires arrondis (remplis) 1638865
Fait!

 

[kd5rxt-mark]

Do you have the BL (backlight...may also be labeled LED) pin tied to either 3.3VDC or 5VDC ?? Pictures of your hookups could be helpful for assisted troubleshooting.

Mark J Culross
KD5RXT

 

[jean]

 

[jean]

hello, I don't know why but it works now,
I had to plug in several pines
but not include them in the script....
I will be able to move forward with my project thank you all

I connected
RST 9
DC 8
CS10
MOSI 11
MISO 12
SCK 13

and in the test script I have
RST 9
DC 8
CS10

 

[mjs513]

hello, I don't know why but it works now,
I had to plug in several pines
but not include them in the script....
I will be able to move forward with my project thank you all

The library defaults to using SPI pins 11 (MOSI) , 12 (MISO) and SCK (13). The constructor you are using in the ILI9488_t3 library uses the default pins so no need to specify them. Now if you wanted to use a different SPI bus for example you would have to use the full constructor as shown in the example and specify all the pins

 ILI9488_t3(&SPIx, TFT_CS, TFT_DC, TFT_RST, TFT_MOSI, TFT_SCK, TFT_MISO) ;

 

[jean]

The library defaults to using SPI pins 11 (MOSI) , 12 (MISO) and SCK (13). The constructor you are using in the ILI9488_t3 library uses the default pins so no need to specify them. Now if you wanted to use a different SPI bus for example you would have to use the full constructor as shown in the example and specify all the pins

 ILI9488_t3(&SPIx, TFT_CS, TFT_DC, TFT_RST, TFT_MOSI, TFT_SCK, TFT_MISO) ;

Thank you for this additional information