11-30-2020 01:12 PM
11-30-2020 02:29 PM - edited 12-01-2020 03:17 PM
Hello QQW,
1.Firstly, please refer the following BMA456 I2C schematic to check bma456 device address. If SDO pin was connected to high level, device address should be 0x19. Otherwise, device address should be 0x18;
2.In writing config file function bma4_write_config_file(), it has a SW procedure in code. After you run the code, you could capture I2C waveform by logic analyzer and check if the I2C waveform match with your SW procudure.
12-01-2020 03:21 AM
你好 我已经很确定该设备的IIc地址为0x19,因为读0x18时并不能读出芯片ID
12-01-2020 03:18 PM
Hello QQW,
Suggest you check I2C waveform next step.
12-02-2020 03:06 PM
我想要知道bma 456和bma456h有什么区别?