I'm working on connecting a TFT LCD (E45RA-MW276-C) to the EK-RA8M1 board using the MIPI-DSI interface through the J58 connector. I need assistance with the specific pin muxing and configuration for this interface.
Which pins on the J58 port are muxed to the MIPI-DSI signals (Clock and Data lanes) when connecting this display?
Are there any other control signals (I2C, Reset, etc.) that need to be muxed or configured for proper operation?
Hello,
I assume you mean EK-RA8D1.
The default jumpers and switch configurations as listed on sections 4.3.3-4.3.4 are enough to use the graphics expansion board.
https://www.renesas.com/en/document/mat/ek-ra8d1-v1-user-manual?r=25452351
On top of that the MIPI example on Github has information on how to configure the switches.
https://github.com/renesas/ra-fsp-examples/tree/master/example_projects/ek_ra8d1/mipi_dsi/mipi_dsi_ek_ra8d1_ep
Hi,I’m working on connecting a TFT LCD (E45RA-MW276-C) to the EK-RA8D1 board using the MIPI-DSI interface. I need help configuring the pins in the dts and pinctrl-dtsi files.
dts
pinctrl-dtsi
Thanks!
E45RA-MW276-C is the included graphics expansion board included with EK-RA8D1. You just need to connect the display on J58 ok the board. You do not need to make extra configurations on hardware.
These are the signals of J58:
Then you need to add the mipi-dsi software module on FSP and enable the relevant pins.
Please follow the example project at github.com/.../mipi_dsi_ek_ra8d1_ep
&pinctrl { sci9_default: sci9_default { group1 { /* TXD9 (P10.14) */ psels = <RA_PSEL(RA_PSEL_SCI_9, 10, 14)>; drive-strength = "medium"; }; group2 { /* RXD9 (P10.15) */ psels = <RA_PSEL(RA_PSEL_SCI_9, 10, 15)>; }; };can you help me out with how the pin muxing is taking place in this. Mainly can you help me we pin muxxing part ...which pin is muxed with which pin??
Please check section 1.7
www.renesas.com/.../ra8d1-group-users-manual-hardware