QMI8658A Datasheet Rev A-勘误表

- 1. Reset Register
- 2. CTRL9 Command List
- 3. Temp Sensor Output

1. Reset Register

在5.9章节和 7.4 章节对复位操作的写入数据，有笔误
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正确的数据是： 0xB0

2. CTRL9 Command List

在 5.10.2 章节 Table 28. List of CTRL9 Commands 中为定义 0x01,0x02,0x03,0x06,0x07 位相关信息，而在驱动样例中有定义了
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enum Qmi8658_Ctrl9Command
{
	Qmi8658_Ctrl9_Cmd_NOP					= 0X00,
	Qmi8658_Ctrl9_Cmd_GyroBias				= 0X01,
	Qmi8658_Ctrl9_Cmd_Rqst_Sdi_Mod			= 0X03,
	Qmi8658_Ctrl9_Cmd_Rst_Fifo				= 0X04,
	Qmi8658_Ctrl9_Cmd_Req_Fifo				= 0X05,
	Qmi8658_Ctrl9_Cmd_I2CM_Write			= 0X06,
	Qmi8658_Ctrl9_Cmd_WoM_Setting			= 0x08,
	Qmi8658_Ctrl9_Cmd_AccelHostDeltaOffset	= 0x09,
	Qmi8658_Ctrl9_Cmd_GyroHostDeltaOffset	= 0x0A,
	Qmi8658_Ctrl9_Cmd_EnableExtReset		= 0x0B,
	Qmi8658_Ctrl9_Cmd_CopyUsid				= 0x10,
	Qmi8658_Ctrl9_Cmd_SetRpu				= 0x11,
	Qmi8658_Ctrl9_Cmd_Dbg_WoM_Data_Enable	= 0xF8,

};

依数据手册为准，忽略 Qmi8658_Ctrl9Command 枚举的字段

3. Temp Sensor Output

在5.9章节给出温度计算公式为
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正确的温度数据的读取计算

float qmi8658_readTemp(void)
{
	unsigned char buf[2];
	short temp = 0;
	float temp_f = 0;

	qmi8658_read_reg(Qmi8658Register_Tempearture_L, buf, 2);
	temp = ((short)buf[1]<<8)|buf[0];
	temp_f = ((float)temp/256.0f)-5.2;

	return temp_f;
}