forked from Bodmer/TFT_eSPI
Bodmer
0e0fd75277
The library has been cleaned up as it has got a bit untidy due to the large number of small incremental changes. 4bit Sprite examples renaed to be consistent with others. alphaBlend example moved to generic folder (alphaBlend fn was moved to TFT_eSPI class). Added sections + explanatory comments to functions prototypes. Temporary comments added for potential gotchas for noobs when using DMA. spi_begin/end functions renamed to reflect functionality. Old fns retained for backwards compatibility with user setup.h files.
63 lines
3.3 KiB
C
63 lines
3.3 KiB
C
///////////////////////////////////////////////////
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// Setup for Nucleo-F446/767 and ILI9341 display //
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///////////////////////////////////////////////////
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// Last update by Bodmer: 14/1/20
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// Define STM32 to invoke STM32 optimised driver (optimised fns only tested on STM32F767 so far)
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// so you may need to comment this out
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#define STM32
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// Define the TFT display driver
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#define ILI9341_DRIVER
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//#define ILI9481_DRIVER
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// MOSI and SCK do not need to be defined, connect:
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// - Arduino SCK (Blue Pill pin A5) to TFT SCK
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// - Arduino MOSI (Blue Pill pin A7) to TFT SDI (may be marked SDA or MOSI)
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// - Optional to read TFT: Arduino MISO (Blue Pill pin A6) to TFT SDO (may be marked MISO or may not exist on TFT)
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// Note: not all TFT's support reads
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// reminder: Blue Pill SPI pins are SCK=A5, MISO = A6, MOSI=A7
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// Can use Ardiuno pin references, arbitrary allocation, TFT_eSPI controls chip select
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#define TFT_CS A0 // Chip select control pin to TFT CS
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#define TFT_DC A1 // Data Command control pin to TFT DC (may be labelled RS = Register Select)
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#define TFT_RST A2 // Reset pin to TFT RST (or RESET)
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//#define TFT_RST -1 // Set TFT_RST to -1 if the display RESET is connected to processor reset
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// Use an Arduino pin for initial testing as connecting to processor reset
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// may not work (due to variations in display design)
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#define TOUCH_CS A4 // Connect to T_CS (Touch controller chip select) if XPT2046 is connected to SPI bus
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// You may need to wire the touch controller to the processor in addition to the TFT
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// For example on some boards the pins are labelled:
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// T_IRQ - no connection to processor
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// T_DO - connect to processor MISO
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// T_DIN - connect to processor MOSI
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// T_CS - connect to processor pin specified by TOUCH_CS above
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// T_SCK - connect to processor SCK
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//*
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#define LOAD_GLCD // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
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#define LOAD_FONT2 // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
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#define LOAD_FONT4 // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
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#define LOAD_FONT6 // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
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#define LOAD_FONT7 // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:-.
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#define LOAD_FONT8 // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
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#define LOAD_GFXFF // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
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//*/
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// At the moment SMOOTH fonts MUST be disabled for STM32 processors (due to lack of SPIFFS)
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// Support for smooth fonts via SD cards is planned.
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//#define SMOOTH_FONT // Must be commented out for STM32
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// Assuming the processor clock is 72MHz:
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#define SPI_FREQUENCY 36000000 // 36MHz SPI clock
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//#define SPI_FREQUENCY 18000000 // 18MHz SPI clock
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#define SPI_READ_FREQUENCY 12000000 // Reads need a slower SPI clock
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#define SPI_TOUCH_FREQUENCY 2500000 // Must be very slow
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// This has no effect, transactions are automatically enabled for STM32
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//#define SUPPORT_TRANSACTIONS
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