- Sun Jan 03, 2016 10:53 pm
#37848
Hi everybody! 
I bought an ESP8266 board, the simplest one with 2 accessible GPIO and uart, and I have a big problem. I can't communicate properly with him. I just can flash the board and nothing more. He doesn't answer to AT commands. The module sends this mensage at 115200 baud repeatedly.
I have searched for persons with the same problem and I can only find one guy but he had a power problem. I don't think this is a power problem because I have measured the current and it consumes only 37mA and I tryed with ldo regulators such 1117 and a lipo battery. The discharge rate of the battery that I have use is huge and I use him for other things that consumes much more power.
I tryed different versions of firmware and nothing
On the datasheet of the Xtensa processor have references of exceptions.
http://0x04.net/~mwk/doc/xtensa.pdf
At 4.4.1.5 of the datasheet (page 89) says the exception 0 refers to a "IllegalInstructionCause".
I can't solve it myself so I need help to solve this.
Thanks!
I bought an ESP8266 board, the simplest one with 2 accessible GPIO and uart, and I have a big problem. I can't communicate properly with him. I just can flash the board and nothing more. He doesn't answer to AT commands. The module sends this mensage at 115200 baud repeatedly.
Code: Select all
Fatal exception (0):
epc1=0x40228e10, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
I have searched for persons with the same problem and I can only find one guy but he had a power problem. I don't think this is a power problem because I have measured the current and it consumes only 37mA and I tryed with ldo regulators such 1117 and a lipo battery. The discharge rate of the battery that I have use is huge and I use him for other things that consumes much more power.
I tryed different versions of firmware and nothing
On the datasheet of the Xtensa processor have references of exceptions.
http://0x04.net/~mwk/doc/xtensa.pdf
At 4.4.1.5 of the datasheet (page 89) says the exception 0 refers to a "IllegalInstructionCause".
I can't solve it myself so I need help to solve this.
Thanks!
