@whycan 找到问题了，是DE的锅
Best posts made by thorinkong
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适配LCD屏幕LQ035NC111遇到问题posted in D1系列-RISC-V
屏幕型号为LQ035NC111，分辨率为320*240，带SPI但是应该无需初始化。按照手册填写好设备树、移植好屏幕后，分别使用echo 8 > /sys/class/disp/disp/attr/colorbar和echo 1 > /sys/class/disp/disp/attr/colorbar命令测试屏幕显示，屏幕如下：
使用DE截图命令：echo 路径/bmp 文件名 > /sys/class/disp/disp/attr/capture_dump得到的截图图像如下，说明经过 DE 处理之后图像并不存在问题：
屏幕手册中时序方面的信息如下：
设备树配置：
&lcd0 { lcd_used = <1>; lcd_driver_name = "default_lcd"; lcd_if = <0>; lcd_hv_if = <0>; lcd_width = <70>; lcd_height = <52>; lcd_x = <320>; lcd_y = <240>; lcd_dclk_freq = <6>; lcd_hbp = <68>; lcd_ht = <408>; lcd_hspw = <30>; lcd_vbp = <18>; lcd_vt = <262>; lcd_vspw = <3>; lcd_backlight = <255>; lcd_pwm_used = <1>; lcd_pwm_ch = <7>; lcd_pwm_freq = <1000000>; lcd_pwm_pol = <0>; lcd_bright_curve_en = <0>; lcd_frm = <1>; lcd_io_phase = <0x0000>; lcd_gamma_en = <0>; lcd_cmap_en = <0>; lcd_hv_clk_phase = <0>; lcd_hv_sync_polarity= <0>; lcd_rb_swap = <0>; lcd_power = "vcc-lcd"; lcd_pin_power = "vcc-pd"; lcd_gpio_0 = <&pio PG 13 GPIO_ACTIVE_HIGH>; lcd_gpio_1 = <&pio PE 16 GPIO_ACTIVE_HIGH>; lcd_gpio_2 = <&pio PE 12 GPIO_ACTIVE_HIGH>; lcd_gpio_3 = <&pio PE 15 GPIO_ACTIVE_HIGH>; pinctrl-0 = <&rgb18_pins_a>; pinctrl-1 = <&rgb18_pins_b>; };这个屏幕调试了好几天了，接线也反复排查了好几遍确认没有问题，实在是搞不明白为什么显示异常了，请各位帮忙分析看看到底是哪里出了问题呢？万分感谢！
Latest posts made by thorinkong
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Reply: D1 LicheeRV Dock 移植RTL8723DS驱动posted in D1系列-RISC-V
@yuzukitsuru 在 D1 LicheeRV Dock 移植RTL8723DS驱动 中说：
Kernel modules ->
Wireless Drivers ->
<*> kmod-net-rtl8723ds........................... RTL8723DS support (staging)这里有两个kmod-net-rtl8723ds选项，是正常的吗？
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D1-h启动softap_up失败posted in D1系列-RISC-V
输出如下：
root@TinaLinux:/# softap_up 123 123123123 *************************** Start hostapd test! *************************** wpa2-psk! Start to set softap! Message is: OK Set softap finished! Start to start softap! SoftAP started successfullyHaving catch sig_chld! Message is: OK Start softap finished! Having catch sig_chld! Having catch sig_chld! Having catch sig_chld! Having catch sig_chld! Having catch sig_chld! Having catch sig_chld! iptables v1.4.21: Couldn't load target `MASQUERADE':No such file or directory Try `iptables -h' or 'iptables --help' for more information. Having catch sig_chld! enable data forward failed!请各位大佬看看这是哪里出了问题呢？万分谢谢
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Reply: 适配LCD屏幕LQ035NC111遇到问题posted in D1系列-RISC-V
找到原因了，手册上讲的屏幕支持DE+Sync和纯Sync模式，如果要使用纯Sync，建议直接将DE接低电平。原本我的连线中屏幕DE是和芯片DE连到一块的，这次我把DE直接接地，显示就正常了
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Reply: 适配LCD屏幕LQ035NC111遇到问题posted in D1系列-RISC-V
@yuzukitsuru 我初始化也试了，没有啥区别。这个屏幕比较古老了，SPI寄存器的文档我找了一周才找到
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适配LCD屏幕LQ035NC111遇到问题posted in D1系列-RISC-V
屏幕型号为LQ035NC111，分辨率为320*240，带SPI但是应该无需初始化。按照手册填写好设备树、移植好屏幕后，分别使用echo 8 > /sys/class/disp/disp/attr/colorbar和echo 1 > /sys/class/disp/disp/attr/colorbar命令测试屏幕显示，屏幕如下：
使用DE截图命令：echo 路径/bmp 文件名 > /sys/class/disp/disp/attr/capture_dump得到的截图图像如下，说明经过 DE 处理之后图像并不存在问题：
屏幕手册中时序方面的信息如下：
设备树配置：
&lcd0 { lcd_used = <1>; lcd_driver_name = "default_lcd"; lcd_if = <0>; lcd_hv_if = <0>; lcd_width = <70>; lcd_height = <52>; lcd_x = <320>; lcd_y = <240>; lcd_dclk_freq = <6>; lcd_hbp = <68>; lcd_ht = <408>; lcd_hspw = <30>; lcd_vbp = <18>; lcd_vt = <262>; lcd_vspw = <3>; lcd_backlight = <255>; lcd_pwm_used = <1>; lcd_pwm_ch = <7>; lcd_pwm_freq = <1000000>; lcd_pwm_pol = <0>; lcd_bright_curve_en = <0>; lcd_frm = <1>; lcd_io_phase = <0x0000>; lcd_gamma_en = <0>; lcd_cmap_en = <0>; lcd_hv_clk_phase = <0>; lcd_hv_sync_polarity= <0>; lcd_rb_swap = <0>; lcd_power = "vcc-lcd"; lcd_pin_power = "vcc-pd"; lcd_gpio_0 = <&pio PG 13 GPIO_ACTIVE_HIGH>; lcd_gpio_1 = <&pio PE 16 GPIO_ACTIVE_HIGH>; lcd_gpio_2 = <&pio PE 12 GPIO_ACTIVE_HIGH>; lcd_gpio_3 = <&pio PE 15 GPIO_ACTIVE_HIGH>; pinctrl-0 = <&rgb18_pins_a>; pinctrl-1 = <&rgb18_pins_b>; };这个屏幕调试了好几天了，接线也反复排查了好几遍确认没有问题，实在是搞不明白为什么显示异常了，请各位帮忙分析看看到底是哪里出了问题呢？万分感谢！