Chat freely about anything...

User avatar
By Osiris
#35329 I just had a thought, I don't know if it was mentioned. AI-Thinker's module may come with a greater flash capacity so maybe there might be some other adjustments. Beginning with the firmware bin files, some are pulled from a 512K+512K source, but it may need to be pulled from the 1024K+1024K. Also, with the more detailed flasher, the Mbit may need to be played with, although I thought I read it should just be at 8Mbit, but changing it may not make it any more worse, but that's also a guess.

I would think changing to one of the larger files and adjusting the flash addresses accordingly makes sense if the chip's flash memory is indeed greater. The smaller 512K version may be writing to an address sooner than it should, in this case where the directions for changing AP/Station, listing AP's, connecting to WiFi, etc. It may recognize the command stored in some other location, but it can' execute it. Of course, this is just speculation.
User avatar
By General_Failure
#42029 Hi there. I signed up so I could reply to this. An ad on Aliexpress had a really nice clear photo of the module. It was clear enough to read the terrible label on the serial flash. It has an 8mbit chip.

I haven't as much as powered mine up because I wanted to find what I could on it first. It's one of the ones that says "AI Cloud Insid8" on it.
User avatar
By vakakush
#43143
General_Failure wrote:Hi there. I signed up so I could reply to this. An ad on Aliexpress had a really nice clear photo of the module. It was clear enough to read the terrible label on the serial flash. It has an 8mbit chip.

I haven't as much as powered mine up because I wanted to find what I could on it first. It's one of the ones that says "AI Cloud Insid8" on it.


I am also sailing in this same boat. General_Failure you are correct. Here is the output from my ESP01 Black colored with Berg Micro 25Q80ASSIG chip and here is some more info that is available through my arduino serial

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x40100000, len 1396, room 16
tail 4
chksum 0x89
load 0x3ffe8000, len 776, room 4
tail 4
chksum 0xe8
load 0x3ffe8308, len 540, room 4
tail 8
chksum 0xc0
csum 0xc0

2nd boot version : 1.4(b1)
SPI Speed : 40MHz
SPI Mode : DIO
SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000

My ESP01 is not responding very well. i have a separate power supply 3.3v (LM2596) and i am using Arduino uno with a voltage divider on tx for 3.3v . Baud rate is 74880 and all i get is a loop with errors

epc1=0x40202a60, epc2=0x00000000, epc3=0x00000000, excvaddr=0x40000000, depc=0x00000000
Fatal exception (3):

i have tested power supply for 3.3v and 700ma which is sufficient i guess. i don't have a cp2102 or a FT232RL USB to SERIAL converter so i am using arduino.

i have ordered a cp2102 and will flash this ESP01 if this module is not dead.