D1的SPI,空闲的时候是低电平，而且每个字节CLK 有9个脉冲，如图所示：
以下是SPI的配置
如果想将空闲时变成高电平，以及每个字节的CLK设为8个，可以尝试通过一下两个角度去分析。
SPI通讯的问题首先考虑是不是 spi_dbi_enable 的问题，目前 spi_dbi_enable 设置的是1，在将 spi_dbi_enable 设置为0后CLK,MOSI都没有数据了。
其实spi_dbi_enable是spi lcd显示屏专用的驱动，配置两个逻辑不太一样
配置lcd屏幕需要单独写lcd的配置
- <div>&lcd_fb0 {</div><div><span style="white-space:pre"> </span>lcd_used = <1>;</div><div><span style="white-space:pre"> </span>lcd_driver_name = "kld2844b";</div><div><span style="white-space:pre"> </span>lcd_if = <1>;</div><div><span style="white-space:pre"> </span>lcd_dbi_if = <4>;</div><div><span style="white-space:pre"> </span>lcd_data_speed = <60>;</div><div><span style="white-space:pre"> </span>lcd_spi_bus_num = <1>;</div><div><span style="white-space:pre"> </span>lcd_x = <240>;</div><div><span style="white-space:pre"> </span>lcd_y = <320>;</div><div><span style="white-space:pre"> </span>lcd_width = <60>;</div><div><span style="white-space:pre"> </span>lcd_height = <95>;</div><div><span style="white-space:pre"> </span>lcd_pwm_used = <1>;</div><div><span style="white-space:pre"> </span>lcd_pwm_ch = <7>;</div><div><span style="white-space:pre"> </span>lcd_pwm_freq = <5000>;</div><div><span style="white-space:pre"> </span>lcd_pwm_pol = <0>;</div><div><span style="white-space:pre"> </span>lcd_pixel_fmt = <0>;</div><div><span style="white-space:pre"> </span>lcd_dbi_fmt = <3>;</div><div><span style="white-space:pre"> </span>lcd_rgb_order = <0>;</div><div><span style="white-space:pre"> </span>lcd_frm = <1>;</div><div><span style="white-space:pre"> </span>lcd_gamma_en = <1>;</div><div><span style="white-space:pre"> </span>fb_buffer_num = <2>;</div><div><span style="white-space:pre"> </span>lcd_backlight = <100>;</div><div><span style="white-space:pre"> </span>lcd_dbi_te = <1>;</div><div><span style="white-space:pre"> </span>lcd_fps = <60>;</div><div><span style="white-space:pre"> </span>lcd_gpio_0 = <&pio PC 0 GPIO_ACTIVE_HIGH>; // reset</div><div><span style="white-space:pre"> </span>status = "okay";</div><div>};</div>
另外检查一下，spi-rx-bus-width=<0x04>是四线spi驱动，需要确认从机是4bit SPI <D0 D1 D2 D3 CLK CS>，否则请改成 spi-rx-bus-width=<0x01>;
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