R128适配SPI LCD+LVGL

[baiwen]

硬件

• 板子： 全志R128开发板
• 屏幕：SPI LCD 1.54寸 240x240分辨率

效果演示

[Video]

[xiaowenge]

这个面包板插上去就挺好的

[xiaok]

大佬能看看sys_config.fex怎么配置吗，驱动是用的nv3029s还是st7789。

[baiwen]

这是我的一些笔记：

所使用的补丁：spilcd2.0.zip

![ecd799ae-c9d0-46f1-8314-65f191526151-image.png](/assets/uploads/files/1700016539588-ecd799ae-c9d0-46f1-8314-65f191526151-image.png) 修改默认clk
/home/book/work/allwinner/R128-FreeRTOS/lichee/rtos-hal/hal/source/spi/common_spi.h

	#define SPI_MOD_CLK 40000000    /* sample mode frequency  */ 

修改调试等级

/home/book/work/allwinner/R128-FreeRTOS/lichee/rtos-hal/hal/source/spi/hal_spi.c

	#define SPI_INFO_LEVEL
	#define SPI_DATA_LEVEL
	#define SPI_DUMPREG_LEVEL

修改默认DMA buffer size

/home/book/work/allwinner/R128-FreeRTOS/lichee/rtos-hal/include/hal/sunxi_hal_spi.h

//#define ALIGN_DMA_BUF_SIZE (4096 + 64)
#ifdef CONFIG_USE_100ASK_DISPLAY_SCREEN_240X240
	#define ALIGN_DMA_BUF_SIZE ((240*240*4) + 64)
#elif CONFIG_USE_100ASK_DISPLAY_SCREEN_320X480
	#define ALIGN_DMA_BUF_SIZE ((320*480*4) + 64)
#else
	#define ALIGN_DMA_BUF_SIZE (4096 + 64)
#endif

修改SPI引脚配置

/home/book/work/allwinner/R128-FreeRTOS/lichee/rtos-hal/hal/source/spi/platform/spi_sun20iw2.h

#define SPI1_PARAMS \
{   .port = 1, \
	.reg_base = SUNXI_SPI1_PBASE, .irq_num = SUNXI_IRQ_SPI1, .gpio_num = 3, \
	.pclk_pll_type = HAL_SUNXI_AON_CCU, .pclk_pll_id = CLK_DEVICE, \
	.pclk_hosc_type = HAL_SUNXI_AON_CCU, .pclk_hosc_id = CLK_HOSC, \
	.bus_type = HAL_SUNXI_CCU, .bus_id = CLK_BUS_SPI1, \
	.mclk_type = HAL_SUNXI_CCU, .mclk_id = CLK_SPI1, \
	.reset_type = HAL_SUNXI_RESET, .reset_id = RST_SPI1, \
	.gpio_clk = GPIOA(13), .gpio_mosi = GPIOA(18), .gpio_miso = -1, \
	.gpio_cs0 = GPIOA(12), .gpio_wp = -1, .gpio_hold = -1, \
	.mux = 6, .driv_level = GPIO_DRIVING_LEVEL2, \
}

注释SUPPORT_DBI_IF

/home/book/work/allwinner/R128-FreeRTOS/lichee/rtos-hal/hal/source/spilcd/lcd_fb/lcd_fb_feature.h

#if defined (CONFIG_ARCH_SUN50IW11) || defined(CONFIG_ARCH_SUN8IW20) || defined(CONFIG_ARCH_SUN20IW1) \
        || defined(CONFIG_ARCH_SUN20IW2)
//#define SUPPORT_DBI_IF
#endif

sys_config.fex配置

/home/book/work/allwinner/R128-FreeRTOS/board/r128s2/pro/configs/sys_config.fex

;----------------------------------------------------------------------------------
;SPI controller configuration
;----------------------------------------------------------------------------------
;Please config spi in dts
[spi1]
spi1_used       = 1
spi1_cs_number  = 1
spi1_cs_bitmap  = 1
spi1_cs0        = port:PA12<6><0><3><default>
spi1_sclk       = port:PA13<6><0><3><default>
spi1_mosi       = port:PA18<6><0><3><default>
spi1_miso       = port:PA21<6><0><3><default>
;spi1_hold       = port:PA19<6><0><2><default>
;spi1_wp         = port:PA20<6><0><2><default>

[pwm6]
pwm_used        = 1
pwm_positive    = port:PA26<4><0><3><default>

;----------------------------------------------------------------------------------
;lcd_fb0 configuration
;----------------------------------------------------------------------------------

[lcd_fb0]
lcd_used            = 1
lcd_model_name      = "spilcd"
lcd_driver_name     = "lcd_100ask_240x240"
lcd_x               = 240
lcd_y               = 240
lcd_width           = 28
lcd_height          = 28
lcd_data_speed      = 40
lcd_pwm_used        = 1
lcd_pwm_ch          = 6
lcd_pwm_freq        = 5000
lcd_pwm_pol         = 0
lcd_if              = 0
lcd_pixel_fmt       = 11
lcd_dbi_fmt         = 2
lcd_dbi_clk_mode    = 1
lcd_dbi_te          = 1
fb_buffer_num       = 2
lcd_dbi_if          = 4
lcd_rgb_order       = 0
lcd_fps             = 10
lcd_spi_bus_num     = 1
lcd_frm             = 2
lcd_gamma_en        = 1
lcd_backlight       = 100

lcd_power_num       = 0
lcd_gpio_regu_num   = 0
lcd_bl_percent_num  = 0

lcd_spi_dc_pin      = port:PA19<1><0><3><0>
;lcd_gpio_0          = port:PA12<1><0><2><0>

[AKIMIZU]

请教一下，韦东山的R128S2驱屏套件如何驱动韦东山的7寸50PIN RGB888屏幕？能出个教程吗？谢谢！

[wj8331585]

@akimizu 他们正在录视频。下下周应该会有。

[baiwen]

@wj8331585 下周应该就有了，今天刚好录制了5节：https://www.bilibili.com/video/BV1oC4y1w7AH