Guru
Joined: 11/02/2018
Location: AustraliaPosts: 3149
| Posted: 12:08am 11 Jun 2025 |
See Display Panels p57 in the V6.00.02 draft manual.
A typical example is:
OPTION SYSTEM SPI CLK-pin, MOSI-pin, MISO-pin
eg
OPTION SYSTEM SPI GP18, GP19, GP16
OPTION LCDPANEL ILI9341, Orientation, DC, RESET, CS(Chip Select) [,LED (Back Light brightness)] [,INVERT colours] '[] are optional.
If not using brightness control connect the LED pin on the panel to 3.3V
Older panels (v1.1) don't have transistor Q1 to drive the LEDs so must not be connected to a GP pin. Connect LED pin to 3.3V via a 100Ω to 220Ω resistor.
eg
OPTION LCDPANEL ILI9341, LANDSCAPE, GP15, GP14, GP13, GP20 'use any free pins for these
Leave these touch pins disconnected T_IRQ, T_DO, T_DIN, T_CLK
and connect T_CS to 3.3V (via a 10kΩ resistor would allow you to use touch in the future)
You can save some SD card pins by sharing the SPI bus.
First remove your current configuration with
OPTION SDCARD DISABLE
then
OPTION SDCARD GP22 'SD_CS - chip select can be any free GP pin
connect SD_CLK to GP18, SD_MOSI to GP19, SD_MISO to GP16
Also see page 64 Example SPI LCD Panel Configuration
Edited 2025-06-11 10:09 by phil99