Commit Graph

4 Commits

Author SHA1 Message Date
Bodmer 3c6dab0a52 Add ability to set the RP2040 parallel interface speed
// For RP2040 processor and 8 or 16 bit parallel displays:
// The parallel interface write cycle period is derived from a division of the CPU clock
// speed so scales with the processor clock. This means that the divider ratio may need
// to be increased when overclocking. I may also need to be adjusted dependant on the
// display controller type (ILI94341, HX8357C etc). If RP2040_PIO_CLK_DIV is not defined
// the library will set default values which may not suit your display.
// The display controller data sheet will specify the minimum write cycle period. The
// controllers often work reliably for shorter periods, however if the period is too short
// the display may not initialise or graphics will become corrupted.
// PIO write cycle frequency = (CPU clock/(4 * RP2040_PIO_CLK_DIV))
//#define RP2040_PIO_CLK_DIV 1 // 32ns write cycle at 125MHz CPU clock
#define RP2040_PIO_CLK_DIV 2 // 64ns write cycle at 125MHz CPU clock
//#define RP2040_PIO_CLK_DIV 3 // 96ns write cycle at 125MHz CPU clock
2022-11-05 18:12:28 +00:00
Bodmer f7e9a91ead Fix #1800 Fix #1793
Added offsets for 170x320 ST7789 display
Added offsets for 240x280 display to ST7789_2 dirver
2022-04-28 14:19:05 +01:00
Bodmer ef93dbe687 Make ST7789 drivers consistent
Simplified driver ST7789_2_DRIVER not supports 135 x 240 display.
This will not fix #763 since user specifies alternative ST7789_DRIVER which already supports 135x240 displays.
2020-10-02 20:47:00 +01:00
Bodmer 9f17920115 Add ESP32 SD support for smooth font plus performance updates
Added SD card storage for smooth fonts with ESP32
ESP32 will use PSRAM (if available and enabled) to hold smooth font
metrics
Improve performance of ESP32 Sprite shared functions
Add basic ST7789 driver option
Latent bug fixes for pin mask
2019-04-15 12:23:16 +01:00