Hi,
目前使用的是DM368 需要接入TFT 800*480 LCD, 但是需要让DM368 VCLK/GPIO79 引脚输出30MHZ- 50MHZ 时钟频率以提供给LCD pclk .
需要配置PLLC1SYSCLK6 或PLLC2SYSCLK5 让其输出需要的时钟..(其他外部时钟硬件均为接入)
请问怎么配置?
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你好,
当VCLK输出大于27Mhz的时候,需要外部输入时钟到DM36x来作为VCLK的输入源。
下面的信息可以在数据手册里面找到:
GIO80 / EXTCLK /B2 / PWM3 /PWM3/ B19
Input GIO: GIO[80]
Video Encoder: External clock Input, used if clock
rates > 27 MHz are needed, e.g. 74.25 MHz for
HDTV digital output.