M5StickFreakler last edited by M5StickFreakler
I have often a connection problem to my m5stack device.
If I upload a program to the device and something goes wrong, I cannot connect to the device again.
I have to close the Windows UIFlow and start up again and load code again.
This problem occurs very often and it is very annoying.
- Firmware UIFlow-v220.127.116.11 (also with v1.4.5)
- Windows UIFlow 18.104.22.168
It seams to be a blocking of the com port by the Windows software because if I try to burn the firmware I get following message:
Command: --chip esp32 --port COM4 --baud 921600 --before default_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x10000 application_0x10000.bin 0x1000 bootloader_0x1000.bin 0x200000 fatfsImg_0x200000.img 0x8000 partitions_0x8000.bin 0xf000 phy_init_data_0xf000.bin 0x3ff000 wifi_0x3ff000.bin ===================================================  Failed to execute script esptool Traceback (most recent call last): File "esptool.py", line 2849, in <module> File "esptool.py", line 2842, in _main File "esptool.py", line 2549, in main File "esptool.py", line 213, in __init__ File "site-packages\serial\__init__.py", line 88, in serial_for_url File "site-packages\serial\serialwin32.py", line 62, in open serial.serialutil.SerialException: could not open port 'COM4': PermissionError(13, 'Access denied', None, 5) esptool.py v2.5.0
After restarting the windows UIFlow everything works fine for a while.
Does anyone have a better solution?
Lewis-H Banned last edited by
Make Sure It's Actually Your Network Problem. ...
Power Cycle Everything and Check Other Devices. ...
Check Physical Connections. ...
Run the Windows Network Troubleshooter. ...
Check for a Valid IP Address. ...
Try a Ping and Trace Its Route. ...
Contact Your ISP. ...
Wait the Network Problems Out.