I am trying to get touch working with a nRF5340 DK and a Waveshare 1.69inch Touch LCD Module. I am running nRF Connect for VSC 2.6.1. My goal is to handle swipe left, swipe right, swipe down, swipe up, and long press, similar to this post.
I started with the lvgl display sample, because it seems to support a pointer and touch. I added a build configuration for the nrf5340DK and an overlay. I can't however get the touch working.
I believe I need to add settings to the prj.conf and I have been experimenting, but it would be good to have the setting in there already, even if they are commented out. Here is what I have:
CONFIG_LV_Z_MEM_POOL_SIZE=16384 CONFIG_LV_Z_SHELL=y CONFIG_MAIN_STACK_SIZE=2048 CONFIG_DISPLAY=y CONFIG_DISPLAY_LOG_LEVEL_ERR=y CONFIG_DISPLAY_LOG_LEVEL_INF=y CONFIG_LOG=y CONFIG_SHELL=y CONFIG_LVGL=y CONFIG_LV_MEM_CUSTOM=y CONFIG_LV_USE_LOG=y CONFIG_LV_USE_LABEL=y CONFIG_LV_USE_BTN=y CONFIG_LV_USE_ARC=y CONFIG_LV_USE_IMG=y CONFIG_LV_USE_MONKEY=y CONFIG_LV_FONT_MONTSERRAT_16=y #added to get touch working CONFIG_INPUT=y CONFIG_LV_Z_POINTER_INPUT=y
However, I am getting a message on the CONFIG_LV_Z_POINTER_INPUT:
CONFIG_LV_Z_POINTER_INPUT was assigned the value y, but got the value n. Missing dependencies: (INPUT && DT_HAS_ZEPHYR_LVGL_POINTER_INPUT_ENABLED && LVGL) || (INPUT && DT_HAS_ZEPHYR_LVGL_POINTER_INPUT_ENABLED && LVGL && 0)
In the code main.c as well this code is dimmed in VSC, so clearly this is not set:
#ifdef CONFIG_LV_Z_ENCODER_INPUT lv_obj_t *arc; lv_group_t *arc_group; arc = lv_arc_create(lv_scr_act()); lv_obj_align(arc, LV_ALIGN_CENTER, 0, 0); lv_obj_set_size(arc, 150, 150); arc_group = lv_group_create(); lv_group_add_obj(arc_group, arc); lv_indev_set_group(lvgl_input_get_indev(lvgl_encoder), arc_group); #endif /* CONFIG_LV_Z_ENCODER_INPUT */
So, I guess I need to figure out how to get CONFIG_DT_HAS_ZEPHYR_LVGL_POINTER_INPUT_ENABLED set, which I'm guessing comes from the overlay. There may be additional overlay entries required, but I did set the touch, I think:
&pinctrl {
spi4_default: spi4_default {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 6)>,
<NRF_PSEL(SPIM_MOSI, 0, 25)>;
};
};
spi4_sleep: spi4_sleep {
group1 {
psels = <NRF_PSEL(SPIM_SCK, 0, 6)>,
<NRF_PSEL(SPIM_MOSI, 0, 25)>;
low-power-enable;
};
};
// Set to I2C pins that the touch screen is connected to
i2c2_default: i2c2_default {
group1 {
psels = <NRF_PSEL(TWIM_SDA, 1, 2)>,
<NRF_PSEL(TWIM_SCL, 1, 3)>;
};
};
i2c2_sleep: i2c2_sleep {
group1 {
psels = <NRF_PSEL(TWIM_SDA, 1, 2)>,
<NRF_PSEL(TWIM_SCL, 1, 3)>;
low-power-enable;
};
};
};
&spi4 {
compatible = "nordic,nrf-spim";
status = "okay";
pinctrl-0 = <&spi4_default>;
pinctrl-1 = <&spi4_sleep>;
pinctrl-names = "default", "sleep";
cs-gpios = <&gpio0 11 GPIO_ACTIVE_LOW>;
st7789v_st7789v_tl019fqv01: st7789v@0 {
compatible = "sitronix,st7789v";
spi-max-frequency = <20000000>;
reg = <0>;
cmd-data-gpios = < &gpio1 11 GPIO_ACTIVE_LOW>;
reset-gpios = < &gpio1 10 GPIO_ACTIVE_LOW>;
width = <240>;
height = <280>;
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];
};
};
&i2c2 {
compatible = "nordic,nrf-twim";
status = "okay";
clock-frequency = <I2C_BITRATE_FAST>;
pinctrl-0 = <&i2c2_default>;
pinctrl-1 = <&i2c2_sleep>;
pinctrl-names = "default", "sleep";
cst816s: cst816s@15 {
compatible = "hynitron,cst816s";
reg = <0x15>;
irq-gpios = <&gpio1 0 GPIO_ACTIVE_LOW>;
rst-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
};
};
/ {
fstab {
compatible = "zephyr,fstab";
lfs: lfs {
compatible = "zephyr,fstab,littlefs";
mount-point = "/lfs";
partition = <&littlefs_storage>;
automount;
read-size = <16>;
prog-size = <16>;
cache-size = <64>;
lookahead-size = <32>;
block-cycles = <512>;
};
};
};
/delete-node/ &storage_partition;
&mx25r64 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
littlefs_storage: partition@0 {
label = "littlefs_storage";
reg = <0x00000000 0x00200000>;
};
lvgl_raw_partition: partition@200000 {
label = "lvgl_raw_partition";
reg = <0x00200000 0x00200000>;
};
settings_partition: partition@400000 {
label = "settings_partition";
reg = <0x400000 0x100000 >;
};
};
};
/ {
chosen {
nordic,pm-ext-flash = &mx25r64;
zephyr,display = &st7789v_st7789v_tl019fqv01;
zephyr,keyboard-scan = &cst816s;
};
/*
aliases {
vibrator_pwm = &led0;
};
*/
vib_pwr: vib-pwr-ctrl {
compatible = "regulator-fixed";
regulator-name = "vib-pwr-ctrl";
enable-gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
};
};
I did find the Capacitive Touch on the nRF52 series good background but I'm using lvgl which handles the touch, I believe, and I did not see specifics on getting a demo set up.
