stm32f103 tft lcd library pricelist

JoaoLopes’s library supports ILI9341, and this one probably is an ILI9341. I checked the SPFD5408 datasheet, and Joao’s library definitely isn’t for SPFD5408. I wonder why he named it so.

Joao Lopes’s library above uses a modified version of the Adafruit TFT library for the hardware layer. The Adafruit TFT library was originally for controlling ILIxxxx series of IC, but this guy modified it for the 8 bit interface of SPFD508.

Now, I’ve seen working code examples for STM32 for the ILIxxxx on Andy’s Workshop blog http://andybrown.me.uk/2012/01/01/stm32 … ft-driver/. So I’m tracking where Joao changed the Adafruit library to try and figure out how to modify an STM32 driver for this TFT.

Okay, I did a git diff on the SPFD5408 library and the Adafruit TFTLCD (for ILI9325 in 8 bit mode) library. Only one thing has been changed, and that is the readID function (it reads a register to identify the chip) which isn’t a big change at all. So I think an STM32 8 bit interface library for ILI9325 should work for the SPFD5408 as well. I’ll look for one or modify andy’s workshop code.

martinayotte wrote:I have an 3.5″ LCD from MCUFriend which looks almost the same as the one above, and I used some parallel 8bits code which use ILI9327 commands.

And also developed a touch screen lib which has some nice features (repeated touch, double touch), check the tftpaint.ino example of the touch library for details.

Theoretically they should give 2500mAh, I will be satisfied if I get 1500mAh out of them, this would mean 12h of 120mA (current consumption of TFT+blue pill).

If you post the defines that you have used in LCD_ID_readreg, I will know your wiring scheme and that it works! I can post a SPECIAL for you. And you can test it. The MapleMini is supported by both Roger’s MapleCore and the Core from ST.

I would get familiar with the basic TFT and GFX methods first. The existing TouchScreen libraries all have issues with Due, Zero, STM32, Teensy, … generally due to pinMode() and digitalWrite() “optimisations”.

I have a tft lcd shield. when I run it use arduino uno, it show me that identifier is ili9325 and works well but when I run it use STM32 blue pill, and this library:

I have run STM32F103 on IteadMaple, Nucleo-F103, and two BluePills. One of the BluePills has its data bus on PA0-PA7. And the Write Cycle is as short as the STM32F103 can possibly make it.

I did it. Pins PA11 PA12 PA15 PB3 PB4 didn’t toggle. I have 2 boards and I test both of them but these pins had problem in both. how can I fix it or change pins in the library????

it do not show until you READ ID of screen. Use LCD_ID_readreg.ino Paste your LCD_ID_readreg.ino example and make photo of your connection to blue pill.

The MCUFRIEND_kbv library is designed for 8-bit Shields. I know that LCD_RD is plugged into Analog #0 pin. Hence my list of #defines in the Readreg sketch.

The MCUFRIEND_kbv library is designed for 8-bit Shields. I know that LCD_RD is plugged into Analog #0 pin. Hence my list of #defines in the Readreg sketch.

It make sense to feed the display with 5V because the regulator on blue pill is not strong enough to deliver the necessary current for the background light of the LCD.

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Thin film transistor liquid crystal display (TFT-LCD) is a variant of liquid crystal display (LCD) which uses thin-film transistor (TFT) technology to improve image quality (e.g., addressability, contrast).

TFT LCDs are used in television sets, computer monitors, mobile phones, handheld video game systems, personal digital assistants, navigation systems, projectors, etc.

This library is valid for TFT controllers in 8-bit/16-bit working mode for STM32 devices and TFT controllers in 8-bit working mode for Stellaris devices.

Initializes HX8347-D display controller display in the 8-bit working mode for Stellaris devices and 16-bit working mode for STM32 devices without setting TFT_DataPort direction.

Initializes R61526 display controller display in the 8-bit working mode for Stellaris devices and 16-bit working mode for STM32 devices without setting TFT_DataPort direction.

Initializes SST7715R display controller display in the 8-bit working mode for Stellaris devices and 16-bit working mode for STM32 devices without setting TFT_DataPort direction.

void TFT_Set_Brush(char brush_enabled, unsigned int brush_color, char gradient_enabled, char gradient_orientation, unsigned int gradient_color_from, unsigned int gradient_color_to);

void TFT_Rectangle_Round_Edges(unsigned int x_upper_left, unsigned int y_upper_left, unsigned int x_bottom_right, unsigned int y_bottom_right, unsigned int round_radius);

void TFT_Partial_Image(unsigned int left, unsigned int top, unsigned int width, unsigned int height, code const far unsigned short * image, unsigned short stretch);

void TFT_Ext_Partial_Image(unsigned int left, unsigned int top, unsigned int width, unsigned int height, unsigned long image, unsigned short stretch);