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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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about stm32 question #199

Open return97 opened 2 years ago

return97 commented 2 years ago

I have a stm32f103c8t6 board

I use the display screen to connect Arduino compilation and run without problem!

But I need to connect the display screen with STM32 and compile it on Arduino ide

What should I do? How to connect? Which library files are modified?

Look forward to your reply!

thank you!

prenticedavid commented 2 years ago

From mcufriend_kbv.h

#elif defined(ARDUINO_GENERIC_STM32F103C) || defined(ARDUINO_BLUEPILL_F103C8) || defined(ARDUINO_BLUEPILL_F103CB)
#warning Uno Shield on BLUEPILL

//LCD pins  |D7 |D6 |D5 |D4 |D3 |D2 |D1 |D0 | |RD |WR |RS |CS |RST| |SD_SS|SD_DI|SD_DO|SD_SCK|
//STM32 pin |PA7|PA6|PA5|PA4|PA3|PA2|PA1|PA0| |PB0|PB6|PB7|PB8|PB9| |PA15 |PB5  |PB4  |PB3   | **ALT-SPI1**

Wire according to the "official BLUEPILL" scheme and select BluePill in the IDE. Build should show that "warning" when compiling MCUFRIEND_kbv.cpp

Subsequent builds will not need to compile MCUFRIEND_kbv

Most examples should run straight out of the box.

David.

return97 commented 2 years ago

C:\Users\Administrator\Documents\Arduino\libraries\MCUFRIEND_kbv/MCUFRIEND_kbv.h:20:68: error: 'A4' was not declared in this scope MCUFRIEND_kbv(int CS=A3, int RS=A2, int WR=A1, int RD=A0, int RST=A4); ^ graphictest_kbv:18:15: error: call to 'MCUFRIEND_kbv::MCUFRIEND_kbv(int, int, int, int, int)' uses the default argument for parameter 1, which is not yet defined MCUFRIEND_kbv tft;

this my error!

return97 commented 2 years ago

sorry ! my wrong!!!! i can now!!! thanks!!!! i try it!

return97 commented 2 years ago

By the way, I have another question?

How do I print a variable?

The variables I output are superimposed!

The data before the variable will not be cleared!

prenticedavid commented 2 years ago

I presume that you have solved this for yourself.

The 5x7 font can be drawn transparently with setTextColor(foreground) The 5x7 font can be drawn with a fresh background i.e. setTextColor(foreground, background)

The FreeFonts can only be drawn transparently with setTextColor(foreground) You must draw a fresh background manually e.g. with fillRect()

Just write your own helper function for FreeFonts