[問題] I2C串接電阻問題
請問一下大家
現在的電路板發現一個問題
MCU(master)跟模組IC(device)透過I2C溝通
但是SCLK跟SDA一直維持在Hi(3.3v,有上拉電阻)
中間的串接電阻目前是22 ohm
是不是串接電阻太小導致電流過大,訊號拉不下來
加大電阻值有用嗎?
謝謝~
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