Unable to burn firmware for esp8285

Question

Unable to burn firmware for esp8285

zhuwei opened this issue 2 years ago · comments

kerr commented 2 years ago

I detected that the voltage of 3.3V was normal, and pwm1 was also connected to GND.
How else do I need to test?

kerr · Answer 1 · Sat Jul 23 2022 13:52:07 GMT+0800 (China Standard Time)

kerr commented 2 years ago

kerr · Answer 2 · Sat Jul 23 2022 13:55:01 GMT+0800 (China Standard Time)

kerr commented 2 years ago

crteensy · Answer 3 · Sat Jul 23 2022 16:04:08 GMT+0800 (China Standard Time)

During power-up, the ESP's boot pin must be pulled high or low (can't look it up because I'm on vacation). You can do that with a female-female cable on the servo header. Look up the boot pin in the schematic to see which pwm output that is

kerr · Answer 4 · Mon Jul 25 2022 11:23:44 GMT+0800 (China Standard Time)

I tested it with a multimeter，boot pin has be pulled low, and TX and Rx are also the same as pwm2 and 3.
But I made three, but I still can't burn them.
sorry, I'm ready to give up

crteensy · Answer 5 · Mon Jul 25 2022 15:04:50 GMT+0800 (China Standard Time)

Don't give up! Are you on the elrs discord? There we can help in a much more interactive manner