TI工程师你好:
drv8880由其他模式切换到ATE调谐模式,只需要将ATE(自动调谐)置为高电平吗? 这时候DECAY0/DECAY1电平状态依然保持,芯片已那个信号为准,这ATE与DECAY那个优先级高??
jiciwi:
To enable the AutoTune mode, pull the ATE pin logic high. Ensure the DECAYx pins are logic low. TheAutoTune mode is registered internally when exiting from sleep mode or the power-up sequence. The ATE pincan be shorted to V3P3 to pull it logic high for this purpose.
但实际当中,是ATE的优先级高
chuanjing liu:
回复 jiciwi:
非常感谢解答,请问如果从自动调谐模式变为慢衰变模式(或者其他模式),是否是将ATE引脚拉低,让DECAY0/1引脚设置为输出低电平,就可以完成自动调谐模式切换到慢衰变模式?? 若不是,请问具体怎么操作??
Alvin Zheng:
回复 chuanjing liu:
The AutoTune mode is registered internally when exiting from sleep mode or the power-up sequence.
建议更改设置后,重新上电,或者执行一次休眠到唤醒。