Hi
I try to start with ST7789 display on nRF54L15 and there are bus fault after add LVGL library. The project is building correctly, but stop just after leave bootloader. When I cut off LVGL lib, program start and LED blinks. I used NCS3.1.1 and my own board. I changed between SPI00 and SPI30, but the same situation. Is there any problem with mipi and spi in nRF54l15 implementation?
LOG:
00> *** Booting MCUboot v2.1.0-dev-ae1ee57f3906 *** 00> *** Using nRF Connect SDK v3.0.2-89ba1294ac9b *** 00> *** Using Zephyr OS v4.0.99-f791c49f492c *** 00> I: Starting bootloader 00> I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3 00> I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3 00> I: Boot source: none 00> I: Image index: 0, Swap type: none 00> I: Bootloader chainload address offset: 0x10000 00> I: Image version: v0.1.1 00> I: Jumping to the first image slot 00> [00:00:00.246,500] <err> os: ***** BUS FAULT ***** 00> [00:00:00.246,510] <err> os: Precise data bus error 00> [00:00:00.246,514] <err> os: BFAR Address: 0xc 00> [00:00:00.246,525] <err> os: r0/a1: 0x00000000 r1/a2: 0x00000009 r2/a3: 0x00000000 00> [00:00:00.246,532] <err> os: r3/a4: 0x00000000 r12/ip: 0x00000000 r14/lr: 0x000497ef 00> [00:00:00.246,536] <err> os: xpsr: 0x69000000 00> [00:00:00.246,540] <err> os: Faulting instruction address (r15/pc): 0x0005c3b2 00> [00:00:00.246,573] <err> os: Current thread: 0x200044b8 (unknown)
prj.conf:
# SPI config CONFIG_SPI=y CONFIG_SPI_NRFX=y CONFIG_SPI_NRFX_RAM_BUFFER_SIZE=256 CONFIG_MIPI_DBI=y CONFIG_MIPI_DBI_SPI=y # DISPLAY config CONFIG_ST7789V=y CONFIG_ST7789V_RGB565=y CONFIG_DISPLAY=y CONFIG_DISPLAY_LOG_LEVEL_ERR=y # LVGL config CONFIG_LVGL=y CONFIG_LV_COLOR_16_SWAP=y CONFIG_LV_USE_LABEL=y CONFIG_LV_FONT_DEFAULT_MONTSERRAT_16=y
overlay:
#include <zephyr/dt-bindings/display/panel.h>
#include <zephyr/dt-bindings/mipi_dbi/mipi_dbi.h>
/ {
chosen {
zephyr,display = &st7789v;
};
mipi_dbi {
compatible = "zephyr,mipi-dbi-spi";
status = "okay";
reset-gpios = <&gpio0 27 GPIO_ACTIVE_LOW>;
dc-gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
spi-dev = <&spi30>;
write-only;
#address-cells = <1>;
#size-cells = <0>;
st7789v: st7789v@0 {
compatible = "sitronix,st7789v";
status = "okay";
reg = <0>;
mipi-max-frequency = <8000000>;
mipi-mode = "MIPI_DBI_MODE_SPI_4WIRE";
width = <240>;
height = <240>;
x-offset = <0>;
y-offset = <0>;
vcom = <0x19>;
gctrl = <0x35>;
vrhs = <0x12>;
vdvs = <0x20>;
mdac = <0x00>;
gamma = <0x01>;
colmod = <0x05>;
lcm = <0x2c>;
porch-param = [0c 0c 00 33 33];
cmd2en-param = [5a 69 02 01];
pwctrl1-param = [a4 a1];
pvgam-param = [D0 04 0D 11 13 2B 3F 54 4C 18 0D 0B 1F 23];
nvgam-param = [D0 04 0C 11 13 2C 3F 44 51 2F 1F 1F 20 23];
ram-param = [00 F0];
rgb-param = [CD 08 14];
};
};
};
&spi30 {
status = "okay";
compatible = "nordic,nrf-spim";
cs-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
pinctrl-0 = <&spi30_default>;
pinctrl-1 = <&spi30_sleep>;
pinctrl-names = "default", "sleep";
};
part of main.c:
display_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_display));
if (!device_is_ready(display_dev))
{
LOG_ERR("Device not ready, aborting test");
return 0;
}
lv_init();
lv_obj_clean(lv_scr_act());
lv_obj_t * label1 = lv_label_create(lv_scr_act());
lv_label_set_text(label1, str_test);
lv_obj_set_style_text_color(label1, lv_color_hex(0xffffff), LV_PART_MAIN);
lv_obj_align(label1, LV_ALIGN_CENTER, 0, -30);
lv_task_handler();
display_blanking_off(display_dev);
for (;;) {
led_red_on();
k_sleep(K_MSEC(RUN_LED_BLINK_INTERVAL));
led_red_off();
k_sleep(K_MSEC(RUN_LED_BLINK_INTERVAL));
}
Best regards
PW
