Merge pull request #9290 from SeppoTakalo/esp_reset_timeout

Cruz Monrreal · web-flow · commit cd03eaf9d3f7 · 2019-01-09T13:46:45.000-06:00
ESP8266: Set HW reset time to 2ms
diff --git a/components/wifi/esp8266-driver/ESP8266Interface.cpp b/components/wifi/esp8266-driver/ESP8266Interface.cpp
@@ -371,7 +371,7 @@ void ESP8266Interface::_hw_reset()
     _rst_pin.rst_assert();
     // If you happen to use Pin7 CH_EN as reset pin, not needed otherwise
     // https://www.espressif.com/sites/default/files/documentation/esp8266_hardware_design_guidelines_en.pdf
-    wait_us(200);
+    wait_ms(2); // Documentation says 200 us should have been enough, but experimentation shows that 1ms was not enough
     _rst_pin.rst_deassert();
 }
 

Original file line number	Diff line number	Diff line change
`@@ -371,7 +371,7 @@ void ESP8266Interface::_hw_reset()`
`371`	`371`	`_rst_pin.rst_assert();`
`372`	`372`	`// If you happen to use Pin7 CH_EN as reset pin, not needed otherwise`
`373`	`373`	`// https://www.espressif.com/sites/default/files/documentation/esp8266_hardware_design_guidelines_en.pdf`
`374`		`- wait_us(200);`
	`374`	`+ wait_ms(2); // Documentation says 200 us should have been enough, but experimentation shows that 1ms was not enough`
`375`	`375`	`_rst_pin.rst_deassert();`
`376`	`376`	`}`
`377`	`377`