Update cm4_conf_txt_add.md

2021-05-20 03:44:12 +08:00 · 2021-05-20 03:44:12 +08:00 · f352b89bca
parent 41f7ac16df
commit f352b89bca
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--- a/docs/cm4_conf_txt_add.md
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 ```
+avoid_warnings=2
 dtoverlay=dwc2,dr_mode=host
+dtparam=i2c_vc=on
+dtoverlay=i2c-rtc,pcf85063a,i2c_csi_dsi
 eeprom_write_protect=1
 ```