Linux启动信息:
[13:24:39.662]
[13:24:43.862]
[13:24:44.257]
U-Boot SPL 2016.05-00018-g6bc25a5 (Aug 05 2019 - 14:43:03)
DRA752-GP ES2.0
[13:24:44.353] no pinctrl for hs200_1_8v
no pinctrl for ddr_1_8v
[13:24:44.465] Card did not respond to voltage select…
HI
日志如下:
[08:31:33][20201204 08:31:33]
[08:31:37]
[08:31:37]U-Boot SPL 2016.05-00018-g6bc25a5 (Aug 05 2019 - 14:43:03)
[08:31:37]DRA752-GP ES2.0
[08:31:37]no pinctrl for hs200_1_8v
[08:31:37]no pinctrl for ddr_1_8v
[08:31:38]Card did not respond to voltage…
Other Parts Discussed in Thread: UCC28070 看了UCC28070的应用手册,对这个还是不理解,看上面的图,感觉加了直流直流偏置至电流检测信号中那这就不是真实的电感电流了?手册上的语句我可能还没明白,这个问题阻碍了我的设计,工作人员能否帮我翻译一下,谢谢!
To improve noise immunity at extremely light loads, a PWM ramp with a dc offset is recommended to be added…