你好，
你有可能使用CY314板吗？如果是这样的话，是什么修订？
该委员会对P0.5引脚，用于CapSense电容。如果你输出一个模拟信号对P0.5，输出将不会因为在PSoC器件不能模拟输出缓冲器驱动大电容。主板上的电容约10 NF和模拟输出缓冲器可驱动200 pF左右，最大。所以，这就是为什么你看到如此意外的信号P0.5。
我会尝试在输出或焊F221试着从你的板拆卸电容C7。
最好的问候，本
以上来自于百度翻译
以下为原文
Hi,
Are you by any chance using a CY3214 board? If so, what revision is it?
This board has a capacitor on the P0.5 pin that is used for CapSense. If you output an analog signal on P0.5, your output will not be as expected because the analog output buffers in the PSoC device cannot drive very large capacitances. The capacitor on the board is around 10 nF and the analog output buffer can drive around 200 pF, max. So, this is why you are seeing a signal on P0.5 that is so unexpected.
I would either try the output on P0.3 or try removing capacitor C7 from your board.
Best regards,
Ben
你好，
你有可能使用CY314板吗？如果是这样的话，是什么修订？
该委员会对P0.5引脚，用于CapSense电容。如果你输出一个模拟信号对P0.5，输出将不会因为在PSoC器件不能模拟输出缓冲器驱动大电容。主板上的电容约10 NF和模拟输出缓冲器可驱动200 pF左右，最大。所以，这就是为什么你看到如此意外的信号P0.5。
我会尝试在输出或焊F221试着从你的板拆卸电容C7。
最好的问候，本
以上来自于百度翻译
以下为原文
Hi,
Are you by any chance using a CY3214 board? If so, what revision is it?
This board has a capacitor on the P0.5 pin that is used for CapSense. If you output an analog signal on P0.5, your output will not be as expected because the analog output buffers in the PSoC device cannot drive very large capacitances. The capacitor on the board is around 10 nF and the analog output buffer can drive around 200 pF, max. So, this is why you are seeing a signal on P0.5 that is so unexpected.
I would either try the output on P0.3 or try removing capacitor C7 from your board.
Best regards,
Ben
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