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luckfox连接pico-lcd-1.3不能显示
Posted: 2024-07-11 4:46
by suker
目标：luckfox Pico点亮 pico-lcd-1.3
1.参考https://wiki.luckfox.com/zh/Luckfox-Pico/Luckfox-Pico-LVGL
（1）完成GPIO定义（将luckfox pro的引脚修改为Luckfox-Pico）
（2）增加spi定义
&spi0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&spi0m0_cs0 &spi0m0_pins>;
st7789v@0{
status = "okay";
compatible = "sitronix,st7789v";
reg = <0>;
spi-max-frequency = <20000000>;
fps = <30>;
buswidth = <8>;
debug = <0x7>;
led-gpios = <&gpio2 RK_PB0 GPIO_ACTIVE_LOW>;//BL
dc = <&gpio2 RK_PB1 GPIO_ACTIVE_HIGH>; //DC
reset = <&gpio1 RK_PC3 GPIO_ACTIVE_LOW>; //RES
};
};
&pinctrl {
spi0 {
/omit-if-no-ref/
spi0m0_pins: spi0m0-pins {
rockchip,pins =
/* spi0_clk_m0 */
<1 RK_PC1 4 &pcfg_pull_none>,
/* spie_miso_m0 */
// <1 RK_PC3 6 &pcfg_pull_none>,
/* spi_mosi_m0 */
<1 RK_PC2 6 &pcfg_pull_none>;
};
};
};
（3）<SDK目录>/sysdrv/source/kernel/arch/arm/configs/luckfox_rv1106_linux_defconfig
在配置中增加fb支持
CONFIG_SPI_MASTER=y
CONFIG_FB=y
故障现象：
（1）编译下载程序后，dev文件夹中没有fb0设备
(2)cat /dev/urandom > /dev/fb0 不花屏，后报错cat: write error: No space left on device
(3)/sys/class/gpio文件夹下，没有出现设置的GPIO接口
另外还想请教一个问题？luckfox-pico不能编译为spi nand flash吗？
谢谢！
Re: luckfox连接pico-lcd-1.3不能显示
Posted: 2024-07-11 7:58
by Luckfox Taylor
Re: luckfox连接pico-lcd-1.3不能显示
Posted: 2024-07-14 12:37
by suker
调试了很久，1103-Luckfox-pico连接的pico-led-1.3还是没有显示
1.我观察不存在/dev/fb0 是不是不正常
2.在rv1103-luckfox-pico.dts里设置了GPIO，烧写固件运行后，在sys/class/gpio里看不到定义的GPIO口，这是不是不正常。
我把几个修改的文件传上来，帮忙看看是不是有错误
文件一：rv1103g-luckfox-pico.dts
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright (c) 2022 Rockchip Electronics Co., Ltd.
*/
/dts-v1/;
#include "rv1103.dtsi"
#include "rv1106-evb.dtsi"
#include "rv1103-luckfox-pico-ipc.dtsi"
/ {
model = "Luckfox Pico";
compatible = "rockchip,rv1103g-38x38-ipc-v10", "rockchip,rv1103";
gpio1pc7:gpio1pc7 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&gpio1_pc7>;
regulator-name = "gpio1_pc7";
regulator-always-on;
};
gpio1pc0:gpio1pc0 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&gpio1_pc0>;
regulator-name = "gpio1_pc0";
regulator-always-on;
};
gpio1pa2:gpio1pa2 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&gpio1_pa2>;
regulator-name = "gpio1_pa2";
regulator-always-on;
};
gpio1pc3:gpio1pc3 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&gpio1_pc3>;
regulator-name = "gpio1_pc3";
regulator-always-on;
};
gpio0pa4:gpio0pa4 {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&gpio0_pa4>;
regulator-name = "gpio0_pa4";
regulator-always-on;
};
};
/**********SDMMC**********/
&sdmmc {
max-frequency = <50000000>;
no-sdio;
no-mmc;
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
disable-wp;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_det &sdmmc0_bus4>;
status = "okay";
};
&pinctrl {
gpio1-pc7 {
gpio1_pc7:gpio1-pc7 {
rockchip,pins = <1 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
gpio1-pc0 {
gpio1_pc0:gpio1-pc0 {
rockchip,pins = <1 RK_PC0 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
gpio1-pa2 {
gpio1_pa2:gpio1-pa2 {
rockchip,pins = <1 RK_PA2 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
gpio1-pc3 {
gpio1_pc3:gpio1-pc3 {
rockchip,pins = <1 RK_PC3 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
gpio0-pa4 {
gpio0_pa4:gpio0-pa4 {
rockchip,pins = <0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
};
/**********ETH**********/
&gmac {
status = "disabled";
};
/**********USB**********/
&usbdrd_dwc3 {
status = "okay";
dr_mode = "peripheral";
};
/**********I2C**********/
/* I2C3_M1 */
&i2c3 {
status = "disabled";
clock-frequency = <100000>;
};
/**********SPI**********/
&spi0 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&spi0m0_cs0 &spi0m0_pins>;
spidev@0 {
status = "disabled";
};
st7789v@0{
status = "okay";
compatible = "sitronix,st7789v";
reg = <0>;
spi-max-frequency = <6000000>;//20000000
fps = <30>;
buswidth = <8>;
debug = <0x7>;
led-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_LOW>;//BL
dc = <&gpio1 RK_PA2 GPIO_ACTIVE_HIGH>; //DC
reset = <&gpio1 RK_PC3 GPIO_ACTIVE_LOW>; //RES
};
};
&pinctrl {
spi0 {
/omit-if-no-ref/
spi0m0_pins: spi0m0-pins {
rockchip,pins =
/* spi0_clk_m0 */
<1 RK_PC1 4 &pcfg_pull_none>,
/* spie_miso_m0 */
// <1 RK_PC3 6 &pcfg_pull_none>,
/* spi_mosi_m0 */
<1 RK_PC2 6 &pcfg_pull_none>;
};
};
};
/**********UART**********/
/* UART3_M1 */
&uart3 {
status = "disabled";
};
/* UART4_M1 */
&uart4 {
status = "disabled";
};
/**********PWM**********/
/* PWM1_M0 */
&pwm1 {
status = "disabled";
};
文件二：luckfox_rv1106_linux_defconfig
增加了两句话
CONFIG_SPI_MASTER=y
CONFIG_FB=y