28062 DSP的复位引脚,外接了一个电压芯片MAX809,
DSP主动复位时, 测得低电平有0.8V, 怎么不是0V ?
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你好,请问你是在接了电压芯片还是没接电压芯片的情况下测试的?
如果是0.8V的话都没有到低压的判定标准0.7V。
看了一下MAX809的复位输出应该是低于0.3/0.4V的,应该能满足复位需求。
建议你可以把芯片断开一下,然后单独测试拉低复位引脚,看能不能正常拉低。