2) I didn't had the correct memory locations for the .bin files.
3) addresses for didn't flash the bin files in the correct order? (the least likely)
My flashed black 1MB ESP-01's now return a list of access points now on AT+CWLAP.
Anywoy, the parameters I used were:
ESP8266_NONOS_SDK-2.2.0\bin\boot_v1.7.bin 0x00000 - a 4KB file
ESP8266_NONOS_SDK-2.2.0\bin\at\512+512\user1.1024.new.2.bin 0x01000 - a 399 KB file
ESP8266_NONOS_SDK-2.2.0\bin\esp_init_data_default_v08.bin 0xfc000 - a 1KB file
ESP8266_NONOS_SDK-2.2.0\bin\blank.bin 0xfe000 - a 4KB file
The addresses and files came from a 'pop-up' that appeared when using FlashDownload Tool 2.3 v (https://github.com/pfalcon/esp-docs/blo ... 150916.rar)
As to the pop-up, why/how/whether they allow everything to function properly I am not sure, but as i said, it seems to be fine. I had previouly tried to use the addresses and files listed in the readme.md files in the SDK, which you'd expect to allow the ESP to work straight awway (perhaps I was looking at info for a different module??? They had worked a couple of months back!)
Interestingly, the Espressif ESP8266 AT Instruction Set manual 2.2 (2018) (https://www.espressif.com/sites/default ... set_en.pdf) says the files and gives different address (which I haven't tried). They are:
blank.bin 0xFB000 [1]
esp_init_data_default.bin 0xFC000 [2]
blank.bin 0x7E000 [3]
blank.bin 0xFE000 [4]
boot.bin 0x00000 [5]
user1.1024.new.2.bin 0x01000 [6]
Notes:
[1] = Initializes the RF_CAL parameter area.
[2] = Stores the default RF parameter values; the BIN has to be downloaded into flash at least once. If the RF_CAL parameter area is initialized, this BIN has to be downloaded too.
[3] = Stores the default RF parameter values; the BIN has to be downloaded into flash at least once. If the RF_CAL parameter area is initialized, this BIN has to be downloaded too.
[4] = Initializes the flash user parameter area; for more details please see Appendix.
[5] = In /bin/at
[6] = In /bin/at/512+512
Make sure the Flash downloader Crystal Frequency is 26MHz (I think I had 40MHz selected. The flash program seems to go ahead fine and most AT commands work, but after going to 26MHz it's seems OK now) but the SPI speed should be 40MHz.
The baud rate on doing this flashing is 115200. The flash process can be a bit troublesome. If it doesn't work immediately, close the program and try again (remember to put GPIO0 to ground - I think modern flashers can set this to ground in the flash program itself!).
Hope this helps. And thanks Espressif for the latest AT file and manual
Statistics: Posted by MIKE-8266 — Fri Mar 23, 2018 5:56 pm
]]>
