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终于LCD显示调出来了~~
spi一直有问题,直接用GPIO模拟的
触摸一直调不通,TWI接口的信号看逻辑分析仪不对,一直有抖动,求助下各位大佬
twi上拉了吗 没上拉会抖动
@bayche 没外部上拉,可以内部上拉吗
@haaland 不可以,twi是开漏输出内部上拉拉不动的。 硬件spi发送初始化会出现超频问题,st7701s的spi通讯速率200K,硬件spi整个1M上去他就不认了
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