Generate Build going wrong

RE: Generate Build going wrong

sabuna — Fri, 20 Jun 2025 21:26:30 GMT

Hi Marta,
it works 🙂
Best regards

RE: Generate Build going wrong

Marte Myrvold — Thu, 19 Jun 2025 07:31:25 GMT

Hi,

I have attached a project with fixes.

I do not have an ILI9341, so I have not tested whether the code works, only that it builds without errors.

devzone.nordicsemi.com/.../l1_5F00_e1_5F00_2.zip

Best regards,
Marte

RE: Generate Build going wrong

sabuna — Wed, 18 Jun 2025 17:05:25 GMT

Hi Marte,

i tried again but i still facing the same issue.
could you create a build for the project above with your change on overlay file ?
Can you please provide the whole project if it is working !?

RE: Generate Build going wrong

Marte Myrvold — Wed, 18 Jun 2025 13:05:43 GMT

Hi,

The ILI9341 driver in Zephyr does not work directly with the nrf-spi node, which SPI1 is defined as. Instead, it expects the SPI bus to be wrapped by a MIPI DBI controller. So, you need the ILI9341 node to be the subnode of a mipi-dbi-spi node, like this:

/ {
	chosen {
		zephyr,display = &ili9341;
	};
    
    mipi_dbi {
        compatible = "zephyr,mipi-dbi-spi";
        spi-dev = <&spi1>;
        status = "okay";
        #address-cells = <1>;
	    #size-cells = <0>;

        ili9341: ili9341@0 {
            compatible = "ilitek,ili9341";
            reg = <0>;
            mipi-max-frequency = <8000000>;

            width = <240>;
            height = <320>;
            rotation = <0>;
            gamset = [01];
        };
    };
};

Additionally, the gamset property is a single-byte value and not an array of 20 bytes, so this will not work:

gamset = [00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13]

Instead, you should use pgamctrl and ngamctrl, for example, like this:

pgamctrl = [0F 29 24 0c 0e 09 4e 78 3c 09 13 05 17 11 00];
ngamctrl = [00 16 1b 04 11 07 31 33 42 05 0c 0a 28 2f 0f];

Best regards,
Marte

RE: Generate Build going wrong

sabuna — Tue, 17 Jun 2025 15:53:28 GMT

unfortunately, the same issue still present.
I wanna upload the project as you recommended.
Project

RE: Generate Build going wrong

Marte Myrvold — Tue, 17 Jun 2025 14:21:18 GMT

Hi,

There is an error with the gamset property. The ">" at the end must be replaced with "]":

gamset = [00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13];

Please note that the pins you are using are, by default, used by the interface MCU UART and NFC on the nRF52840 DK. I recommend using pins that are not used by other peripherals. You can see which pins are used in the nRF52840 DK - connector interface.

If you still get build errors after fixing the gamset property and pins, please upload your project so I can reproduce it.

Best regards,
Marte

RE: Generate Build going wrong

sabuna — Tue, 17 Jun 2025 11:36:42 GMT

Hi Marte,
Thanks for fast support
Here is the overlay file :

/* STEP 2.1 - Add the SPI peripheral to spi1 */
&i2c0 { status = "disabled";};
&spi0 { status = "disabled";};
&i2c1 { status = "disabled";};

&spi1 {
 status = "okay";
 cs-gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;

 ili9341@0 {
 compatible = "ilitek,ili9341";
 reg = <0>;
 spi-max-frequency = <8000000>;

 reset-gpios = <&gpio0 6 GPIO_ACTIVE_LOW>;
 dc-gpios = <&gpio0 7 GPIO_ACTIVE_LOW>;

 width = <240>;
 height = <320>;
 rotation = <0>;

 backlight-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
 gamset = [00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13>;
 };
};

RE: Generate Build going wrong

Marte Myrvold — Tue, 17 Jun 2025 11:19:26 GMT

Hi,

It seems like there could be some issues with your devicetree overlay. Can you share nrf52840dk_nrf52840.overlay?

Best regards,
Marte