07-09-2025, 03:46 PM
Hello I recently bought a KC868 A16, I am trying to do some test using arduino , when I try to download it to the board I get this error
I understand that the speed port , is correct , but I do not know what the problem is .
Sketch uses 320642 bytes (24%) of the program storage space. The maximum is 1310720 bytes.
Global variables use 22056 bytes (6%) of dynamic memory, leaving 305624 bytes for local variables. The maximum is 327680 bytes.
esptool.py v4.8.1
Serial port COM5:
Connecting....
Connected to ESP32 on COM5:
Chip type: ESP32-D0WD-V3 (revision v3.1)
Features: Wi-Fi, BT, Dual Core + LP Core, 240MHz, Vref calibration in eFuse, Coding Scheme None
Crystal frequency: 40MHz
MAC: f0:24:f9:f4:76:88
Uploading stub flasher...
Running stub flasher...
Stub flasher running.
Warning: Failed to communicate with the flash chip, read/write operations will fail. Try checking the chip connections or removing any other hardware connected to IOs.
Configuring flash size...
Flash will be erased from 0x000000001000 to 0x00006fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x00000000e000 to 0x0000ffffff...
Flash will be erased from 0x00010000 to 0x0005efff...
Compressed 23424 bytes to 15046...
Writing at 0x00001000 [ ] 0.0% 0/15046 bytes...
Writing at 0x0000006b80 [==============================] 100.0% 15046/15046 bytes...
A fatal error occurred: Serial data stream stopped: Possible serial noise or corruption.
Hard resetting via RTS pin...
Failed uploading: uploading error: exit status 2
I understand that the speed port , is correct , but I do not know what the problem is .
Sketch uses 320642 bytes (24%) of the program storage space. The maximum is 1310720 bytes.
Global variables use 22056 bytes (6%) of dynamic memory, leaving 305624 bytes for local variables. The maximum is 327680 bytes.
esptool.py v4.8.1
Serial port COM5:
Connecting....
Connected to ESP32 on COM5:
Chip type: ESP32-D0WD-V3 (revision v3.1)
Features: Wi-Fi, BT, Dual Core + LP Core, 240MHz, Vref calibration in eFuse, Coding Scheme None
Crystal frequency: 40MHz
MAC: f0:24:f9:f4:76:88
Uploading stub flasher...
Running stub flasher...
Stub flasher running.
Warning: Failed to communicate with the flash chip, read/write operations will fail. Try checking the chip connections or removing any other hardware connected to IOs.
Configuring flash size...
Flash will be erased from 0x000000001000 to 0x00006fff...
Flash will be erased from 0x00008000 to 0x00008fff...
Flash will be erased from 0x00000000e000 to 0x0000ffffff...
Flash will be erased from 0x00010000 to 0x0005efff...
Compressed 23424 bytes to 15046...
Writing at 0x00001000 [ ] 0.0% 0/15046 bytes...
Writing at 0x0000006b80 [==============================] 100.0% 15046/15046 bytes...
A fatal error occurred: Serial data stream stopped: Possible serial noise or corruption.
Hard resetting via RTS pin...
Failed uploading: uploading error: exit status 2