Error on AT command, can't flash firmware.
Posted: Fri Sep 14, 2018 4:41 pmG'day
I've just bought an ESP-12F board and I started testing it. I connected 3.3V power, GPIO15 to ground, EN(CH_PD) to VCC and RX, TX to USB-UART. It sends
If I connect GPIO0 to ground, it sends
It sends all messages back, when RST pin isn't connected an does nothing if RST is connected to DTR.
Is there any way to get it working and flash NodeMCU firmware?
I've just bought an ESP-12F board and I started testing it. I connected 3.3V power, GPIO15 to ground, EN(CH_PD) to VCC and RX, TX to USB-UART. It sends
Code: Select all
or something simillar at 74880 bauds an next 23:30:20.712 -> ets Jan 8 2013,rst cause:2, boot mode:(3,6)
23:30:20.746 ->
23:30:20.746 -> load 0x40100000, len 27728, room 16
23:30:20.746 -> tail 0
23:30:20.746 -> chksum 0x2a
23:30:20.746 -> load 0x3ffe8000, len 2124, room 8
23:30:20.800 -> tail 4
23:30:20.800 -> chksum 0x07
23:30:20.800 -> load 0x3ffe8850, len 9276, room 4
23:30:20.800 -> tail 8
23:30:20.800 -> chksum 0xba
23:30:20.800 -> csum 0xba
rf[112] : 00
23:30:20.983 -> rf[113] : 00
23:30:20.983 -> rf[114] : 00
23:30:21.019 -> SD⸮"@j⸮⸮ Code: Select all
at 115200 bauds. When I send AT command or anything different, it sends the message back. If I connect DTR from converter to RST pin, it sends readyCode: Select all
AT
23:35:02.858 ->
23:35:02.858 -> ERROR
If I connect GPIO0 to ground, it sends
Code: Select all
23:38:21.529 -> ets Jan 8 2013,rst cause:1, boot mode:(1,0)
23:38:21.564 ->
It sends all messages back, when RST pin isn't connected an does nothing if RST is connected to DTR.
Is there any way to get it working and flash NodeMCU firmware?