LIS3DH包含一个辅助ADC,带有3个独立的专用输入:引脚ADC1,ADC2,ADC3。
用户可以从寄存器OUT_ADC1_L(08h),OUT_ADC1_H(09h),OUT_ADC2_L(0Ah),OUT_ADC2_H(0Bh)和OUT_ADC3_L(0Ch),OUT_ADC3_H(0Dh)中检索转换后的数据。
为了使用辅助ADC,用户必须在CTRL_REG4(23h)中将BDU位(位7)设置为1,并在TEMP_CFG_REG(1Fh)中将ADC_EN位(位7)设置为1。 ADC采样频率与CTRL_REG1(20h)中的ODR相同。
输入范围为:1200 mv±400 mV,数据输出以左对齐的2的补码表示。
如果CTRL_REG1(20h)中的LPen(第3位)清零(高性能/正常模式),则ADC分辨率为10位;否则,在低功耗模式下,ADC分辨率为8位。
通过在TEMP_CFG_REG(1Fh)中将TEMP_EN位(位6)设置为1,可以将ADC的通道3连接到温度传感器。
最好的祝福
米罗斯拉夫
以上来自于谷歌翻译
以下为原文
The LIS3DH contains an auxiliary ADC with 3 separate dedicated inputs: pins ADC1, ADC2, ADC3.
The user can retrieve the converted data from registers OUT_ADC1_L (08h), OUT_ADC1_H (09h), OUT_ADC2_L (0Ah), OUT_ADC2_H (0Bh) and OUT_ADC3_L (0Ch),OUT_ADC3_H (0Dh).
In order to use the auxiliary ADC, the user must set the BDU bit (bit 7) to 1 in CTRL_REG4 (23h) and the ADC_EN bit (bit 7) to 1 in TEMP_CFG_REG (1Fh). The ADC sampling frequency is the same as that of the ODR in CTRL_REG1 (20h).
The input range is: 1200 mv ±400 mV and the data output is expressed in 2's complement left-aligned.
The ADC resolution is 10 bits if the LPen (bit 3) in CTRL_REG1 (20h) is cleared (high performance / normal mode), otherwise, in low-power mode, the ADC resolution is 8-bit.
Channel 3 of the ADC can be connected to the temperature sensor by setting the TEMP_EN bit (bit 6) to 1 in TEMP_CFG_REG (1Fh).
Best regards
Miroslav
LIS3DH包含一个辅助ADC,带有3个独立的专用输入:引脚ADC1,ADC2,ADC3。
用户可以从寄存器OUT_ADC1_L(08h),OUT_ADC1_H(09h),OUT_ADC2_L(0Ah),OUT_ADC2_H(0Bh)和OUT_ADC3_L(0Ch),OUT_ADC3_H(0Dh)中检索转换后的数据。
为了使用辅助ADC,用户必须在CTRL_REG4(23h)中将BDU位(位7)设置为1,并在TEMP_CFG_REG(1Fh)中将ADC_EN位(位7)设置为1。 ADC采样频率与CTRL_REG1(20h)中的ODR相同。
输入范围为:1200 mv±400 mV,数据输出以左对齐的2的补码表示。
如果CTRL_REG1(20h)中的LPen(第3位)清零(高性能/正常模式),则ADC分辨率为10位;否则,在低功耗模式下,ADC分辨率为8位。
通过在TEMP_CFG_REG(1Fh)中将TEMP_EN位(位6)设置为1,可以将ADC的通道3连接到温度传感器。
最好的祝福
米罗斯拉夫
以上来自于谷歌翻译
以下为原文
The LIS3DH contains an auxiliary ADC with 3 separate dedicated inputs: pins ADC1, ADC2, ADC3.
The user can retrieve the converted data from registers OUT_ADC1_L (08h), OUT_ADC1_H (09h), OUT_ADC2_L (0Ah), OUT_ADC2_H (0Bh) and OUT_ADC3_L (0Ch),OUT_ADC3_H (0Dh).
In order to use the auxiliary ADC, the user must set the BDU bit (bit 7) to 1 in CTRL_REG4 (23h) and the ADC_EN bit (bit 7) to 1 in TEMP_CFG_REG (1Fh). The ADC sampling frequency is the same as that of the ODR in CTRL_REG1 (20h).
The input range is: 1200 mv ±400 mV and the data output is expressed in 2's complement left-aligned.
The ADC resolution is 10 bits if the LPen (bit 3) in CTRL_REG1 (20h) is cleared (high performance / normal mode), otherwise, in low-power mode, the ADC resolution is 8-bit.
Channel 3 of the ADC can be connected to the temperature sensor by setting the TEMP_EN bit (bit 6) to 1 in TEMP_CFG_REG (1Fh).
Best regards
Miroslav
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