espressif
v2.2.0.0_esp8266 无法启动
按照官网教程编译 ESP8266_1M AT 固件, 烧写后 log 只输出一部分就挂了
` ets Jan 8 2013,rst cause:2, boot mode:(3,6)
load 0x40100000, len 7496, room 16 tail 8 chksum 0xc6 load 0x3ffe8008, len 24, room 0 tail 8 chksum 0x7f load 0x3ffe8020, len 3340, room 0 tail 12 chksum 0x0d csum 0x0d `
Log output should come from GPIO2, not the download port.
Could you please double check your hardware connection.
I have the same issue. I downloaded esp8285-1MB-at from here. I also tried building from source (both 2.2.0 and 2.1.0) with the same result.
The log output from GPIO2 starts at baud rate 74880 and shows this:
ets Jan 8 2013,rst cause:2, boot mode:(3,6)
load 0x40100000, len 7464, room 16
tail 8
chksum 0x60
load 0x3ffe8008, len 24, room 0
tail 8
chksum 0xd9
load 0x3ffe8020, len 3340, room 0
tail 12
chksum 0xae
csum 0xae
Then, if I switch to baud rate 115200, I get this:
(45) boot: ESP-IDF v3.4-63-ge3348ac7 2nd stage bootloader
I (45) boot: compile time 14:36:34
I (45) boot: SPI Speed : 26.7MHz
I (49) boot: SPI Mode : DOUT
I (53) boot: SPI Flash Size : 1MB
I (57) boot: Partition Table:
I (61) boot: ## Label Usage Type ST Offset Length
I (68) boot: 0 otadata OTA data 01 00 00009000 00002000
I (75) boot: 1 nvs WiFi data 01 02 00010000 00008000
I (83) boot: 2 at_customize unknown 40 00 00018000 00008000
I (90) boot: 3 factory factory app 00 00 00020000 000e0000
I (97) boot: End of partition table
I (101) boot: Defaulting to factory image
I (106) esp_image: segment 0: paddr=0x00020010 vaddr=0x40220010 size=0xb34cc (734412) map
I (115) esp_image: segment 1: paddr=0x000d34e4 vaddr=0x402d34dc size=0x1bec8 (114376) map
I (123) esp_image: segment 2: paddr=0x000ef3b4 vaddr=0x3ffe8000 size=0x00768 ( 1896) load
I (132) esp_image: segment 3: paddr=0x000efb24 vaddr=0x40100000 size=0x00080 ( 128) load
I (141) esp_image: segment 4: paddr=0x000efbac vaddr=0x40100080 size=0x059f0 ( 23024) load
I (150) boot: Loaded app from partition at offset 0x20000
phy_version: 1163.0, 665d56c, Jun 24 2020, 10:00:08, RTOS new
module_name:ESP8266_1MB
max tx power=78,ret=0
2.2.1
which, if reformatted, looks like this:
(45) boot: ESP-IDF v3.4-63-ge3348ac7 2nd stage bootloader
I (45) boot: compile time 14:36:34
I (45) boot: SPI Speed : 26.7MHz
I (49) boot: SPI Mode : DOUT
I (53) boot: SPI Flash Size : 1MB
I (57) boot: Partition Table:
I (61) boot: ## Label Usage Type ST Offset Length
I (68) boot: 0 otadata OTA data 01 00 00009000 00002000
I (75) boot: 1 nvs WiFi data 01 02 00010000 00008000
I (83) boot: 2 at_customize unknown 40 00 00018000 00008000
I (90) boot: 3 factory factory app 00 00 00020000 000e0000
I (97) boot: End of partition table
I (101) boot: Defaulting to factory image
I (106) esp_image: segment 0: paddr=0x00020010 vaddr=0x40220010 size=0xb34cc (734412) map
I (115) esp_image: segment 1: paddr=0x000d34e4 vaddr=0x402d34dc size=0x1bec8 (114376) map
I (123) esp_image: segment 2: paddr=0x000ef3b4 vaddr=0x3ffe8000 size=0x00768 ( 1896) load
I (132) esp_image: segment 3: paddr=0x000efb24 vaddr=0x40100000 size=0x00080 ( 128) load
I (141) esp_image: segment 4: paddr=0x000efbac vaddr=0x40100080 size=0x059f0 ( 23024) load
I (150) boot: Loaded app from partition at offset 0x20000
phy_version: 1163.0, 665d56c, Jun 24 2020, 10:00:08, RTOS new
module_name:ESP8266_1MB
max tx power=78,ret=0
2.2.1
Meanwhile, from the UART0_TXD pin (GPIO1), at baud rate 74880, I see this:
ets Jan 8 2013,rst cause:2, boot mode:(3,7)
load 0x40100000, len 7464, room 16
tail 8
chksum 0x60
load 0x3ffe8008, len 24, room 0
tail 8
chksum 0xd9
load 0x3ffe8020, len 3340, room 0
tail 12
chksum 0xae
csum 0xae
It seems that the main app is not being executed. From what I understand, it should switch to baud rate 115200 and accept AT commands but it doesn't echo anything back to my terminal.
My device is an ESP-01M, ESP8285 chip, 1MB Flash.
Any advice is appreciated. Thank you in advance. 🙏
@techrah seems that the firmware is good (it print 2.2.1 from GPIO2). please check you hardware connection
Thanks. After carefully reading how the UART0 TX/RX-CTS/RTS swap works, I got it to work. I'll post my two solutions here in case someone else has the same issue. For solution 2, I have one more question.
Solution 1
When connected like this:
| UART0 | USB-to-Serial Converter |
|---|---|
| GPIO13 RX | TX |
| GPIO15 TX | RX |
the key to getting this to work is that GPIO15 needs to be pulled LOW during boot-up.
Solution 2
I also got it to work without swapping the pins:
| UART0 | USB-to-Serial Converter |
|---|---|
| GPIO1 TX | RX |
| GPIO3 RX | TX |
by modifying components/customized_partitions/raw_data/factory_param/factory_param_data.csv, changing this line
PLATFORM_ESP8266,ESP8266_1MB,No OTA,0xfcfc,3,0,78,0,1,13,CN,115200,15,13,3,1,5,-1
to
PLATFORM_ESP8266,ESP8266_1MB,No OTA,0xfcfc,3,0,78,0,1,13,CN,115200,1,3,3,1,5,-1
QUESTION: Is there a way to do this without changing this file? The only thing I could find in menuconfig that seems to be related to this is CONFIG_ESP_UART0_SWAP_IO but that is currently NOT set anyway.
Thanks!
@darkgirl there is a tool which can change uart configurations or others: https://github.com/espressif/esp-at/blob/master/tools/at.py
you can run python tools/at.py modify_bin --help see more details. in you case, you can try to run:
python tools/at.py modify_bin -tx 1 -rx 3 -cts 13 -rts 15 -in 1MB_firmware.bin
We assume this worked for you, and will close it. If that's not the case, please open another github issue.