全志在线开发者论坛

awwwwa

@willok 发表一个回复就是LV2了

awwwwa

@luminous

awwwwa

@yinjc

awwwwa

@hctdqz 然后你LV3了

回复2条帖子就是LV2了，发一个贴直接LV2

awwwwa

@zhouyuan369 删除文件夹内的.repo隐藏文件夹重新拉取

awwwwa

由于屏幕较大首先精简系统内存，关闭DSP核心，并将 RV 核心移到 HSPSRAM 上提高带宽。配置 LV_COLOR_DEPTH 16 提高帧率降低内存占用

patch 如下，增加了新方案r128-devkit-rgb：161ca91b-f759-4108-8bfc-85114394da0c-r128-devkit-rgb.tar.gz

编译打包即可

700ms启动 LVGL：

awwwwa

@zhouyuan369 网盘要怎么接收后续更新呢，重新下载25G的压缩包吗？

awwwwa

@huang825172 可能目前网络不太好，稍等一下再拉取就行

awwwwa

AWOL 支持这些芯片，提供SDK下载

参考 https://www.aw-ol.com/docs 中的文档下载

其他芯片需要联系你购买商家的客服或者代理获取

awwwwa

打入以下补丁即可

cd package
git apply *.patch

lvgl8-update-version-from-8.1.0-to-8.3.2.zip

awwwwa

执行命令设置全局保存密码

git config --global credential.helper store

执行命令输入密码

git clone https://sdk.aw-ol.com/git_repo/V853Tina_Open/manifest.git

使用repo拉取sdk

repo init -u https://sdk.aw-ol.com/git_repo/V853Tina_Open/manifest.git -b master -m tina-v853-open.xml

由于repo更新，目前不支持通过repo输入密码，请先使用git命令输入保存密码

awwwwa

@hqembed 有Tina Linux AIoT，支持Buildroot，Debian

awwwwa

@wayneyao IP版本不同，驱动有修改，以手册为准，控制器支持32bit，请提供设备树和驱动修改

awwwwa

可以尝试中断绑定其他CPU核心，例如CPU1

awwwwa

uboot和dtsi里面添加dual link IO的配置

demo:

lvds2link_pins_a: lvds2link@0 {
     allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,function = "lvds1";
     allwinner,muxsel = <3>;
     allwinner,drive = <3>;
     allwinner,pull = <0>;
 };

lvds2link_pins_b: lvds2link@1 {
     allwinner,pins = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,pname = "PD0", "PD1", "PD2", "PD3", "PD4", "PD5", "PD8", "PD9", "PD6", "PD7", \
     "PD10", "PD11", "PD12", "PD13", "PD14", "PD15", "PD18", "PD19", "PD16", "PD17";
     allwinner,function = "lvds1_suspend";
     allwinner,muxsel = <7>;
     allwinner,drive = <3>;
     allwinner,pull = <0>;
 };

dts中修改为lvds dual link模式，并引用dtsi里配好的dual link IO

&lcd0{
...
 lcd_lvds_if          = <1>;
...
...
pinctrl-0 = <&lvds2link_pins_a>;
pinctrl-1 = <&lvds2link_pins_b>;
...
}

其他和single link的配置方法无异，如果点不亮请检查时序

这里看到dclk配置是80

但是手册需求的是54

这里提供一套1920x720的时序作为参考

&lcd0 {
	lcd_used            = <1>;

	lcd_driver_name     = "default_lcd";
	lcd_backlight       = <50>;
	lcd_if              = <3>;

	lcd_x               = <1920>;
	lcd_y               = <720>;
	lcd_width           = <150>;
	lcd_height          = <94>;
	lcd_dclk_freq       = <94>;

	lcd_pwm_used        = <1>;
	lcd_pwm_ch          = <3>;
	lcd_pwm_freq        = <50000>;
	lcd_pwm_pol         = <1>;
	lcd_pwm_max_limit   = <255>;

	lcd_hbp             = <64>;
	lcd_ht              = <2064>;
	lcd_hspw            = <20>;
	lcd_vbp             = <30>;
	lcd_vt              = <760>;
	lcd_vspw            = <10>;

	lcd_lvds_if         = <1>;
	lcd_lvds_colordepth = <0>;
	lcd_lvds_mode       = <0>;
	lcd_frm             = <1>;
	lcd_hv_clk_phase    = <0>;
	lcd_hv_sync_polarity= <0>;
	lcd_gamma_en        = <0>;
	lcd_bright_curve_en = <0>;
	lcd_cmap_en         = <0>;

	deu_mode            = <0>;
	lcdgamma4iep        = <22>;
	smart_color         = <90>;

	pinctrl-0 = <&lvds2link_pins_a>;
	pinctrl-1 = <&lvds2link_pins_b>;
};

awwwwa

根据具体的模型和需求的规格来看，实际感觉差不多

awwwwa

@zhangerhu 硬件只是同编同解可以试一下，瓶颈估计在带宽上

awwwwa

@dnvwf

重点：rootfstype=squashfs

v851s/configs/xxx/env.cfg


#kernel command arguments
earlyprintk=sunxi-uart,0x02500000
initcall_debug=0
console=ttyS0,115200
nand_root=/dev/ubiblock0_4
mmc_root=/dev/mmcblk0p4
nor_root=/dev/mtdblock3
init=/init
rdinit=/rdinit
loglevel=8
coherent_pool=32K
#reserve_list=30M@64M,78M@128M,200M@512M
mac=
wifi_mac=
bt_mac=
specialstr=
root_partition=rootfs
mtd_name=sys
rootfstype=squashfs
#set kernel cmdline if boot.img or recovery.img has no cmdline we will use this
setargs_nor=setenv bootargs  earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nor_root} rootwait init=${init} rdinit=${rdinit} partitions=${partitions} cma=${cma} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
setargs_nand=setenv bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel}  ubi.mtd=${mtd_name} root=${nand_root} rootfstype=${rootfstype} rootwait init=${init} rdinit=${rdinit} partitions=${partitions} cma=${cma} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} selinux=${selinux} specialstr=${specialstr} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
setargs_nand_ubi=setenv bootargs ubi.mtd=${mtd_name} ubi.block=0,${root_partition} earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${nand_root} rootfstype=${rootfstype} init=${init} partitions=${partitions} cma=${cma} snum=${snum} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} specialstr=${specialstr} gpt=1
setargs_mmc=setenv  bootargs earlyprintk=${earlyprintk} clk_ignore_unused initcall_debug=${initcall_debug} console=${console} loglevel=${loglevel} root=${mmc_root}  rootwait init=${init} partitions=${partitions} cma=${cma} mac_addr=${mac} wifi_mac=${wifi_mac} bt_mac=${bt_mac} selinux=${selinux} specialstr=${specialstr} coherent_pool=${coherent_pool} ion_carveout_list=${reserve_list}
#nand command syntax: sunxi_flash read address partition_name read_bytes
#0x4007f800 = 0x40080000(kernel entry) - 0x800(boot.img header 2k)
boot_partition=boot
boot_normal=sunxi_flash read 44800000 ${boot_partition};bootm 44800000
boot_recovery=sunxi_flash read 44800000 extend;bootm 44800000
boot_fastboot=fastboot
#recovery key
recovery_key_value_max=0x13
recovery_key_value_min=0x10
#fastboot key
fastboot_key_value_max=0x8
fastboot_key_value_min=0x2

#uboot system env config
bootdelay=1
#default bootcmd, will change at runtime according to key press
#default nand boot
bootcmd=run setargs_nand boot_normal
#verify the kernel
verify=N

awwwwa

需要真实存在两个屏幕，也可以一个lcd屏幕一个spi屏幕

awwwwa

会，启动介质优先级描述了每个介质被选择为启动介质的可能性。BROM 首先读取具有最高优先级的介质的 boot0。如果该介质不存在或存在任何问题，BROM 将尝试下一个介质。否则，该介质将被选择为启动介质。

具体可以查看手册GPIO Boot Select表格

awwwwaLV 7

@awwwwa

awwwwa 发布的最佳帖子

awwwwa 发布的最新帖子