STM32Fxxx graphics display drivers

Layer chart, examples circuits and settings:

• Lcd_drv.pdf ( https://github.com/RobertoBenjami/stm32_graphics_display_drivers/blob/master/Lcd_drv.pdf )

LCD I/O and touchscreen I/O driver:

• lcd_io_spi: software SPI, hardware SPI, hardware SPI with DMA
• lcd_io_gpio8: 8 bit paralell without analog resistive touchscreen
• lcd_io_gpio16: 16 bit paralell without analog resistive touchscreen
• lcd_io_fsmc8: 8 bit paralell without analog resistive touchscreen + FSMC or FSMC with DMA
• lcd_io_fsmc16: 16 bit paralell without analog resistive touchscreen + FSMC or FSMC with DMA
• lcdts_io_gpio8: 8 bit paralell with analog resistive touchscreen
• lcdts_io_fsmc8: 8 bit paralell with analog resistive touchscreen + FSMC or FSMC with DMA
• ts_xpt2046: XPT2046 touchscreen driver, software and hardware SPI, 4 or 5 wires
• lcdts_io_spi_xpt2046: LCD and XPT2046 in common SPI, software and hardware SPI with DMA (DMA only in LCD)

stm family	spi	gpio8	gpio16	fsmc8	fsmc16	ts_gpio8	ts_fsmc8	ts_xpt2046	spi_xpt2046	note
STM32F0	+	+	+
STM32F1	+	+	+			+		+
STM32F2	+	+	+	+	+	+	+	+	+
STM32F3	+	+	+
STM32F4	+	+	+	+	+	+	+	+	+
STM32F7	+	+	+
STM32G0		+	+							not tested
STM32G4		+	+							not tested
STM32L0	+	+	+							not tested
STM32L1	+	+	+
STM32L4	+	+	+							not tested
STM32L5		+	+							not tested
STM32H7		+	+

LCD driver:

• st7735 (SPI mode tested)
• st7783 (8 bit paralell mode tested)
• ili9325 (8 bit paralell mode tested)
• ili9328 (8 bit paralell mode tested)
• ili9341 (SPI, 8 bit and 16 bit paralell mode, SPI with LTDC mode tested)
• ili9486 (8 bit paralell mode tested)
• ili9488 (SPI, 8 bit paralell mode tested)
• hx8347g (8 bit paralell mode tested)

App:

• LcdSpeedTest: Lcd speed test
• TouchCalib: Touchscreen calibration program
• Paint: Arduino paint clone
• JpgViewer: JPG file viewer from SD card or pendrive
• AnalogClock: Analog Clock demo (printf: the result, i use the SWO pin for ST-LINK Serial Wire Viewer (SWV). See:examples/Src/syscalls.c)
• 3d filled vector (from https://github.com/cbm80amiga/ST7789_3D_Filled_Vector_Ext)

How to use starting from zero?

• stm32f103c8 - spi: https://www.youtube.com/watch?v=4NZ1VwuQWhw
• stm32f103c8 - gpio8: https://www.youtube.com/watch?v=2oP4vGotuJA
• stm32f103c8 - gpio8 with touchscreen: https://www.youtube.com/watch?v=qyCctzAbD2g
• stm32f407zet - fsmc16, sdcard, jpg: https://www.youtube.com/watch?v=hfeKMZXt2L8
• stm32f429zi discovery - spi-dma, usbhost pendrive, jpg: https://www.youtube.com/watch?v=Qi8CtNJGWFw

1. Create project for Cubemx or CubeIDE

• setting the RCC (Crystal/ceramic resonator)
• setting the debug (SYS / serial wire or trace assyn sw)
• setting the timebase source (i like the basic timer for this)
• if FSMC : setting the FSMC (chip select, memory type = LCD, Lcd reg select, data = 8 or 16 bits, timing)
• if SDCARD : setting the SDIO mode, enable the FATFS, FATFS: USE_LFN, MAX_SS = 4096, FS_LOCK = 5, RTC enabled
• if USB pendrive : setting the USB host, setting the USB power, enable the FATFS, USE_LFN, MAX_SS = 4096, FS_LOCK = 5
• if JPG : enabled the LIBJPEG
• setting the clock configuration
• project settings: project name, toolchain = truestudio, stack size = 0x800
• generate source code

2. Truestudio or CubeIDE

• open projects from file system (only Truestudio)
• open main.c
• add USER CODE BEGIN PFP: void mainApp(void);
• add USER CODE BEGIN WHILE: mainApp();
• open main.h
• add USER CODE BEGIN Includes (#include "stm32f1xx_hal.h" or #include "stm32f4xx_hal.h" or ...)
• add 2 new folder for Src folder (App, Lcd)
• copy file(s) from App/... to App
• copy 4 or 7 files from Drivers to Lcd (lcd.h, bmp.h, stm32_adafruit_lcd.h / c, if touch: ts.h, stm32_adafruit_ts.h / c)
• copy Fonts folder to Lcd folder
• copy io driver to Lcd folder (lcd_io_...h / c or lcdts_io...h / c or...)
• copy lcd driver to Lcd folder (st7735.h / c or ili9325.h /c or...)
• if printf to SWO : copy syscalls.c to Src folder
• setting the configuration the io driver header file (pin settings, speed settings etc...)
• setting the LCD configuration (orientation, touchscreen)
• add include path : Src/Lcd
• setting the compile options (Enable paralell build, optimalization)
• compile, run ...

Example (please unzip the app you like):

• f103c8t_app: (stm32f103c8t HAL applications, cubemx, truestudio)
• f103c8t_app_rtos: (stm32f103c8t HAL-FreeRtos applications, cubemx, truestudio)
• f407vet_app: (stm32f407vet HAL-applications, cubemx, truestudio)
• f407vet_app_rtos: (stm32f407vet HAL-FreeRtos applications, cubemx, truestudio)
• f407vet_app_fsmc: (stm32f407vet HAL applications, FSMC, cubemx, truestudio)
• f407vet_app_rtos_fsmc: (stm32f407vet HAL-FreeRtos applications, FSMC, cubemx, truestudio)
• f407vet_app_fsmc16: (stm32f407vet HAL applications, FSMC 16 bit, cubemx, truestudio)
• f407zet_app_fsmc16_extsram: (stm32f407zet HAL applications, FSMC 16 bit, external 1MB SRAM, cubemx, truestudio)

How to adding the SWO support to cheap stlink ?

https://lujji.github.io/blog/stlink-clone-trace/