Skywalkerf34 commented 1 year ago

Hi,

I wanna to use your example but change to ILI9488 LCD I try this very simple code but didn't display anything ???

// // ZIP library example sketch // // Written by Larry Bank // June 9, 2021 // // This example shows how to do the following: // - Step through all of the files in a ZIP archive // - Display the name of each file // - Allocate a buffer for the uncompressed file size // - Read (decompress) the data into the buffer // - Display the results (in this case a BMP file) on the SPI LCD //

include

// Set these to the appropriate values for your SPI LCD display // -1 means the pin is not connected

define TFT_MISO 39

define TFT_CS 4

define TFT_RST 26

define TFT_DC 25

define TFT_CLK 18

define TFT_MOSI 23

define TFT_BL 13

// Use a zip file in memory for this test

include "bmp_icons.h"

UNZIP zip; // Statically allocate the 41K UNZIP class/structure SPILCD lcd; // my display library

void setup() { Serial.begin(115200); delay(1000); // give Serial a little time to start spilcdInit(&lcd, LCD_ILI9488, FLAGS_NONE, 40000000, TFT_CS, TFT_DC, TFT_RST, TFT_BL, TFT_MISO, TFT_MOSI, TFT_CLK); spilcdSetOrientation(&lcd, LCD_ORIENTATION_90); // for the ILI it's nice to use it in landscape orientation }

void loop() { int rc, x, y; char szComment[256], szName[256]; unz_file_info fi; uint8_t *ucBitmap; // temp storage for each icon bitmap

//spilcdFill(&lcd, 0, DRAW_TO_LCD); // Erase the display to black spilcdWriteString(&lcd, 0, 0, (char *)"Unzip BMP Files Test", 0xffff, 0, FONT_12x16, DRAW_TO_LCD); // white text on a black background delay(5000); // Allow time to see it happen

// } // while (1) {}; }

Backlight start but nothing appear on screen! why ?

bitbank2 commented 1 year ago

There are a large list of reasons why this may not work:

SPI speed too high for the display and/or wiring
Incorrect connections Based on the GPIO numbers it looks like you're using an older ESP32 (original). That MCU doesn't have a GPIO 39. This could cause an internal exception and prevent the code from running. Have you checked the debug messages coming out of the serial port?

Skywalkerf34 commented 1 year ago

Hi Larry,

Thanks for your answer,

I am using ESP32 WROOM module and use this one for many year already, I confirm with exactly same setup for IO with other library and it works

SPI speed is given in the other library (TFT_eSPI library) to 27000000 I alredy try with that with no more success

I should have that ILI9341 in some old stock, I will check with your original code to confirm tmr

Skywalkerf34 commented 1 year ago

Hi Larry,

Today I get a fresh new ILI9341 from my stock and test it with the other library on same board to confirm all pin setup

I just change those in your original example but only succeed to light the screen I just change pin and add TFT_BL and TFT_MISO compare to your original

Here is my MOD // // ZIP library example sketch // // Written by Larry Bank // June 9, 2021 // // This example shows how to do the following: // - Step through all of the files in a ZIP archive // - Display the name of each file // - Allocate a buffer for the uncompressed file size // - Read (decompress) the data into the buffer // - Display the results (in this case a BMP file) on the SPI LCD //

include

// Set these to the appropriate values for your SPI LCD display // -1 means the pin is not connected // The CLK and MOSI pins might be -1 for your board if it has a default SPI setup

define TFT_CS 4

define TFT_RST -1

define TFT_DC 25

define TFT_CLK 18

define TFT_MOSI 23

define TFT_MISO 19

define TFT_BL 13

// Use a zip file in memory for this test

include "bmp_icons.h"

UNZIP zip; // Statically allocate the 41K UNZIP class/structure SPILCD lcd; // my display library

void setup() { Serial.begin(115200); delay(1000); // give Serial a little time to start spilcdInit(&lcd, LCD_ILI9341, FLAGS_NONE, 40000000, TFT_CS, TFT_DC, TFT_RST, TFT_BL, TFT_MISO, TFT_MOSI, TFT_CLK); spilcdSetOrientation(&lcd, LCD_ORIENTATION_90); // for the ILI9341 it's nice to use it in 320x240 orientation }

void loop() { int rc, x, y; char szComment[256], szName[256]; unz_file_info fi; uint8_t *ucBitmap; // temp storage for each icon bitmap

spilcdFill(&lcd, 0, DRAW_TO_LCD); // Erase the display to black spilcdWriteString(&lcd, 0, 0, (char )"Unzip BMP Files Test", 0xffff, 0, FONT_12x16, DRAW_TO_LCD); // white text on a black background x = 0; y = 24; // starting point to draw bitmaps rc = zip.openZIP((uint8_t )bmp_icons, sizeof(bmp_icons)); if (rc == UNZ_OK) { rc = zip.getGlobalComment(szComment, sizeof(szComment)); Serial.print("Global comment: "); Serial.println(szComment); zip.gotoFirstFile(); rc = UNZ_OK; while (rc == UNZ_OK) { // Display all files contained in the archive rc = zip.getFileInfo(&fi, szName, sizeof(szName), NULL, 0, szComment, sizeof(szComment)); if (rc == UNZ_OK) { ucBitmap = (uint8_t *)malloc(fi.uncompressed_size); // allocate enough to hold the bitmap if (ucBitmap != NULL) { // malloc succeeded (it should, these bitmaps are only 2K bytes each) zip.openCurrentFile(); // if you don't open it explicitly, readCurrentFile will fail with UNZ_PARAMERROR spilcdWriteString(&lcd, 0, 224, " ", 0xff1f, 0, FONT_12x16, DRAW_TO_LCD); // erase old name spilcdWriteString(&lcd, 0, 224, szName, 0xff1f, 0, FONT_12x16, DRAW_TO_LCD); // display current file name at the bottom rc = zip.readCurrentFile(ucBitmap, fi.uncompressed_size); // we know the uncompressed size of these BMP images if (rc != fi.uncompressed_size) { Serial.print("Read error, rc="); Serial.println(rc, DEC); } spilcdDrawBMP(&lcd, ucBitmap, x, y, 1, -1, DRAW_TO_LCD); // Display the BMP file stretched 2X starting at (x,y) x += 64; // Draw them across the display from left to right if (x >= 256) { // move down for the next row x = 0; y += 64; } free(ucBitmap); // finished with this bitmap } delay(1000); // Allow time to see it happen, otherwise it will zip by too quickly } rc = zip.gotoNextFile(); } zip.closeZIP(); } // while (1) {}; }

Serial give : Global comment: 32x32 icon collection in Windows BMP format

bitbank2 commented 1 year ago

What other library are you testing with? Can you show that demo code? Can you share a photo of your display and setuup?

Start simpler - get rid of everything except the display initialization. Clear it to a specific color and draw some text.

Skywalkerf34 commented 1 year ago

Hello Larry,

I finally succed to run your sketch on ILI9341 giving all the pin like this

// // ZIP library example sketch // // Written by Larry Bank // June 9, 2021 // // This example shows how to do the following: // - Step through all of the files in a ZIP archive // - Display the name of each file // - Allocate a buffer for the uncompressed file size // - Read (decompress) the data into the buffer // - Display the results (in this case a BMP file) on the SPI LCD //

include

// Set these to the appropriate values for your SPI LCD display // -1 means the pin is not connected // The CLK and MOSI pins might be -1 for your board if it has a default SPI setup

define TFT_CS 4

define TFT_RST 26

define TFT_DC 25

define TFT_CLK 18

define TFT_MOSI 23

define TFT_MISO 19

define TFT_BL 13

// Use a zip file in memory for this test

include "bmp_icons.h"

UNZIP zip; // Statically allocate the 41K UNZIP class/structure SPILCD lcd; // my display library

void setup() { Serial.begin(115200); delay(1000); // give Serial a little time to start spilcdInit(&lcd, LCD_ILI9341, FLAGS_NONE, 40000000, TFT_CS, TFT_DC, TFT_RST, TFT_BL, TFT_MISO, TFT_MOSI, TFT_CLK); spilcdSetOrientation(&lcd, LCD_ORIENTATION_270); // for the ILI9341 it's nice to use it in 320x240 orientation }

void loop() { int rc, x, y; char szComment[256], szName[256]; unz_file_info fi; uint8_t *ucBitmap; // temp storage for each icon bitmap

spilcdFill(&lcd, 0, DRAW_TO_LCD); // Erase the display to black spilcdWriteString(&lcd, 0, 0, (char )"Unzip BMP Files Test", 0xffff, 0, FONT_12x16, DRAW_TO_LCD); // white text on a black background x = 0; y = 24; // starting point to draw bitmaps rc = zip.openZIP((uint8_t )bmp_icons, sizeof(bmp_icons)); if (rc == UNZ_OK) { rc = zip.getGlobalComment(szComment, sizeof(szComment)); Serial.print("Global comment: "); Serial.println(szComment); zip.gotoFirstFile(); rc = UNZ_OK; while (rc == UNZ_OK) { // Display all files contained in the archive rc = zip.getFileInfo(&fi, szName, sizeof(szName), NULL, 0, szComment, sizeof(szComment)); if (rc == UNZ_OK) { ucBitmap = (uint8_t *)malloc(fi.uncompressed_size); // allocate enough to hold the bitmap if (ucBitmap != NULL) { // malloc succeeded (it should, these bitmaps are only 2K bytes each) zip.openCurrentFile(); // if you don't open it explicitly, readCurrentFile will fail with UNZ_PARAMERROR spilcdWriteString(&lcd, 0, 224, " ", 0xff1f, 0, FONT_12x16, DRAW_TO_LCD); // erase old name spilcdWriteString(&lcd, 0, 224, szName, 0xff1f, 0, FONT_12x16, DRAW_TO_LCD); // display current file name at the bottom rc = zip.readCurrentFile(ucBitmap, fi.uncompressed_size); // we know the uncompressed size of these BMP images if (rc != fi.uncompressed_size) { Serial.print("Read error, rc="); Serial.println(rc, DEC); } spilcdDrawBMP(&lcd, ucBitmap, x, y, 1, -1, DRAW_TO_LCD); // Display the BMP file stretched 2X starting at (x,y) x += 64; // Draw them across the display from left to right if (x >= 256) { // move down for the next row x = 0; y += 64; } free(ucBitmap); // finished with this bitmap } delay(1000); // Allow time to see it happen, otherwise it will zip by too quickly } rc = zip.gotoNextFile(); } zip.closeZIP(); } // while (1) {}; }

BUT if I change to ILI9488

spilcdInit(&lcd, LCD_ILI9488, FLAGS_NONE, 40000000, TFT_CS, TFT_DC, TFT_RST, TFT_BL, TFT_MISO, TFT_MOSI, TFT_CLK);

it just start illuminate background but didn't display anything

bitbank2 / bb_spi_lcd

using ili9488 #12

include

include

define TFT_MISO 39

define TFT_CS 4

define TFT_RST 26

define TFT_DC 25

define TFT_CLK 18

define TFT_MOSI 23

define TFT_BL 13

include "bmp_icons.h"

include

include

define TFT_CS 4

define TFT_RST -1

define TFT_DC 25

define TFT_CLK 18

define TFT_MOSI 23

define TFT_MISO 19

define TFT_BL 13

include "bmp_icons.h"

include

include

define TFT_CS 4

define TFT_RST 26

define TFT_DC 25

define TFT_CLK 18

define TFT_MOSI 23

define TFT_MISO 19

define TFT_BL 13

include "bmp_icons.h"