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INA229: 读取Manufacturer ID

Part Number: INA229
Other Parts Discussed in Thread: SYSCONFIG

用STM32F080 读 ina229的Manufacturer ID,读出来的数据不是固定的,一会0x0401,一会0x0402,一会是 0x0000,等各种数值。第一次用这种SPI 接口的电流IC。不知道是不是我通讯程序写错了,大神们有没有INA229相关的读取例程可供参考?