自己打样的驱动板,与原版改动如下:
1、将28069M和DRV8305放置到同一块PCB上;
2、3.3V芯片替换为AMS1117-3.3;
目前未查明原因现状:
问题一:不连接电机使用lab02c测试,pwm信号输出正常,连接电机(T-Motor MN501)做参数识别时电流异常,不限流会导致DRV8305烧毁;
问题二:程序正常运行,28069M没有PWM输出;
PCB截图:
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