esp32c3 revisions

[citoyx]

Good afternoon,

After two months delay, i just received my esp32c3 devkitC 02v1.1
Sadly after trying to flash blink exemple i got this message:

E (38) boot_comm: This chip is revision 2 but the application is configured for minimum revision 3. Can't run.

I understand there is a workaround with modifying some files, but what is the difference between rev2 and rev3 ? does it have an impact on code ? will there be some structural change between revisions ?

and most important, where can i get latest revision chip devkit ?

***addons***

Just to let you know, and in case someone face the same issue. Just idf.py menuconfig -> component config -> esp32c3 specific -> Minimum supported esp32-c3 revision : choose 2 (or whatever your revision is).

here is the output of blink :

Code: Untitled.bsh Select all

Serial port COM22

Connecting....

Detecting chip type... ESP32-C3

Running idf_monitor in directory d:\work\esp\examples\get-started\blink

Executing "C:\Users\plonky\.espressif\python_env\idf4.4_py3.8_env\Scripts\python.exe D:\work\esp\tools/idf_monitor.py -p COM22 -b 115200 --toolchain-prefix riscv32-esp-elf- --target esp32c3 --decode-panic backtrace d:\work\esp\examples\get-started\blink\build\blink.elf -m 'C:\Users\plonky\.espressif\python_env\idf4.4_py3.8_env\Scripts\python.exe' 'D:\work\esp\tools\idf.py'"...

--- WARNING: GDB cannot open serial ports accessed as COMx

--- Using \\.\COM22 instead...

--- idf_monitor on \\.\COM22 115200 ---

--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---

ESP-ROM:esp32c3-20200918

Build:Sep 18 2020

rst:0x1 (POWERON),boot:0xc (SPI_FAST_FLASH_BOOT)

SPIWP:0xee

mode:DIO, clock div:1

load:0x3fcd6100,len:0x1654

load:0x403ce000,len:0x8c0

load:0x403d0000,len:0x2928

entry 0x403ce000

I (32) boot: ESP-IDF v4.4-dev-1404-gc13afea63 2nd stage bootloader

I (32) boot: compile time 17:40:37

I (32) boot: chip revision: 2

I (35) boot.esp32c3: SPI Speed      : 80MHz

I (40) boot.esp32c3: SPI Mode       : DIO

I (45) boot.esp32c3: SPI Flash Size : 2MB

I (50) boot: Enabling RNG early entropy source...

I (55) boot: Partition Table:

I (59) boot: ## Label            Usage          Type ST Offset   Length

I (66) boot:  0 nvs              WiFi data        01 02 00009000 00006000

I (73) boot:  1 phy_init         RF data          01 01 0000f000 00001000

I (81) boot:  2 factory          factory app      00 00 00010000 00100000

I (88) boot: End of partition table

I (92) esp_image: segment 0: paddr=00010020 vaddr=3c020020 size=07640h ( 30272) map

I (105) esp_image: segment 1: paddr=00017668 vaddr=3fc8ae00 size=0145ch (  5212) load

I (110) esp_image: segment 2: paddr=00018acc vaddr=40380000 size=0754ch ( 30028) load

I (123) esp_image: segment 3: paddr=00020020 vaddr=42000020 size=178b0h ( 96432) map

I (141) esp_image: segment 4: paddr=000378d8 vaddr=4038754c size=03724h ( 14116) load

I (144) esp_image: segment 5: paddr=0003b004 vaddr=50000000 size=00010h (    16) load

I (150) boot: Loaded app from partition at offset 0x10000

I (153) boot: Disabling RNG early entropy source...

I (169) cpu_start: Pro cpu up.

I (177) cpu_start: Pro cpu start user code

I (177) cpu_start: cpu freq: 160000000

I (177) cpu_start: Application information:

I (180) cpu_start: Project name:     blink

I (185) cpu_start: App version:      v4.4-dev-1404-gc13afea63

I (191) cpu_start: Compile time:     May 20 2021 17:40:32

I (197) cpu_start: ELF file SHA256:  78cbbe885cdab963...

I (203) cpu_start: ESP-IDF:          v4.4-dev-1404-gc13afea63

I (210) heap_init: Initializing. RAM available for dynamic allocation:

I (217) heap_init: At 3FC8D0E0 len 00032F20 (203 KiB): DRAM

I (223) heap_init: At 3FCC0000 len 0001F260 (124 KiB): STACK/DRAM

I (230) heap_init: At 50000010 len 00001FF0 (7 KiB): RTCRAM

I (237) spi_flash: detected chip: generic

I (241) spi_flash: flash io: dio

W (245) spi_flash: Detected size(4096k) larger than the size in the binary image header(2048k). Using the size in the binary image header.

I (258) sleep: Configure to isolate all GPIO pins in sleep state

I (265) sleep: Enable automatic switching of GPIO sleep configuration

I (272) cpu_start: Starting scheduler.

I (276) example: Example configured to blink addressable LED!

I (276) example: Turning the LED OFF!

I (1286) example: Turning the LED ON!

I (2286) example: Turning the LED OFF!

I (3286) example: Turning the LED ON!

I (4286) example: Turning the LED OFF!

I (5286) example: Turning the LED ON!

I (6286) example: Turning the LED OFF!

I (7286) example: Turning the LED ON!

I (8286) example: Turning the LED OFF!

I (9286) example: Turning the LED ON!

[Sprite]

I understand there is a workaround with modifying some files, but what is the difference between rev2 and rev3 ? does it have an impact on code ? will there be some structural change between revisions ?

There's some minor changes in the radio/MAC logic between eco2 and eco3, and USB-to-JTAG-serial doesn't work in ECO2. No structural changes otherwise.

and most important, where can i get latest revision chip devkit ?

Any mass market devkit you get at this point should have ECO3 on it. ECO2 and earlier was only given out in sample quantities.

[chegewara]

Any mass market devkit you get at this point should have ECO3 on it. ECO2 and earlier was only given out in sample quantities.

I have bought esp32 C3 from mouser. My order was delayed about 5 weeks due to shortages and production, but thats not the point. My order was sent about 6 weeks ago, so not that long time ago and it was not sample. All 5 devkit boards are with eco2, at least esp-idf reports it is revision 2.

[citoyx]

Any mass market devkit you get at this point should have ECO3 on it. ECO2 and earlier was only given out in sample quantities.

I have bought esp32 C3 from mouser. My order was delayed about 5 weeks due to shortages and production, but thats not the point. My order was sent about 6 weeks ago, so not that long time ago and it was not sample. All 5 devkit boards are with eco2, at least esp-idf reports it is revision 2.

Yeah my order from mouser was made 23th of march.
4xESP32-C3-DevKitC-02 and 4xESP32-C3-DevKitM-1

So far i received devkit 02 last Wednesday an all are sample (rainmaker version) rev2.

devkitm-1 is delayed to mid june again with resupply status.

WHERE can i buy mass market version ?

[chegewara]

Dont take this wrong, i do not complain, i knew exactly what i am buying and i am happy with that. Even without USB/JTAG i can work with new chip, test BLE5 or other API compatibility, which is good, but i am just a programmer.

[DoctorDan]

Well, I do want to complain. I am new to these products. I also ordered esp32-c3 from mouser. The units were shipped with notes on the esp32-c3 idf. It describes the commands that should be run to test the installation (blink)

I followed these instructions step-by-step and got
E (36) boot_comm: This chip is revision 2 but the application is configured for minimum revision 3. Can't run.

This is pretty unacceptable. As a newcomer I have no idea if this error can be corrected or how to do that but it certainly does not appear that the merchandise that I received is what appears on my order. If the C3 modules are/were not ready the shipping should have been postponed until the correct items became available.

I don't know what to do next but I am one very unhappy camper.

Thank you,
de

[chegewara]

@DoctorDan, dont worry, you can still use it and have a lot of fun. All you have to do is to change 1 option in menuconfig.

Code: Select all

idf.py menuconfig

Then search for revision keyword and change it from version 3 to version 2.

[DoctorDan]

Thanks, I'll take a look

[PoClab]

Seems like I have 1-st revision of ESP32-C3 that works not as expected. I am interested in how I can understand by marking on-chip that I am buying revision higher than 3?

[axellin]

@DoctorDan, dont worry, you can still use it and have a lot of fun. All you have to do is to change 1 option in menuconfig.

Code: Select all

idf.py menuconfig

Then search for revision keyword and change it from version 3 to version 2.

This is no longer true, you will hit link error if rev < 3.
https://github.com/espressif/esp-idf/is ... -978774224