Cant download a file

Hi,
when I download a file there is a error.

Summary

$ cc3200tool -p COM3 read_file /cert/ca.der cert/ca.der
2024-07-09 04:34:28,851 – Connecting to target…
2024-07-09 04:34:29,056 – Connected, reading version…
2024-07-09 04:34:29,071 – connected to target
2024-07-09 04:34:29,071 – Version: CC3x00VersionInfo((0, 4, 1, 2), (0, 0, 0, 0), (0, 0, 0, 0), (0, 0, 0, 0), (16, 0, 0, 0))
2024-07-09 04:34:29,071 – This is a CC3200 device
2024-07-09 04:34:29,071 – Switching to NWP bootloader…
2024-07-09 04:34:29,087 – Switching UART to APPS…
2024-07-09 04:34:29,103 – Resetting communications …
2024-07-09 04:34:30,308 – Uploading rbtl3100s.dll…
2024-07-09 04:34:30,308 – Getting storage list…
2024-07-09 04:34:35,449 – timed out while waiting for ack
Traceback (most recent call last):
File “”, line 198, in _run_module_as_main
File “”, line 88, in run_code
File "C:\Users\matze\AppData\Local\Programs\Python\Python312-32\Scripts\cc3200tool.exe_main
.py", line 7, in
File “C:\Users\matze\AppData\Local\Programs\Python\Python312-32\Lib\site-packages\cc3200tool\cc.py”, line 1402, in main
cc.switch_to_nwp_bootloader()
File “C:\Users\matze\AppData\Local\Programs\Python\Python312-32\Lib\site-packages\cc3200tool\cc.py”, line 1006, in switch_to_nwp_bootloader
self._raw_write(0, dll_data(‘rbtl3100s.dll’))
File “C:\Users\matze\AppData\Local\Programs\Python\Python312-32\Lib\site-packages\cc3200tool\cc.py”, line 840, in _raw_write
self._send_chunk(offset + sent, chunk, storage_id)
File “C:\Users\matze\AppData\Local\Programs\Python\Python312-32\Lib\site-packages\cc3200tool\cc.py”, line 824, in _send_chunk
self._send_packet(command + data)
File “C:\Users\matze\AppData\Local\Programs\Python\Python312-32\Lib\site-packages\cc3200tool\cc.py”, line 751, in _send_packet
raise CC3200Error(
cc3200tool.cc.CC3200Error: No ack for packet opcode=0x2d

Any Ideas why?

Be sure you have a good connection, especially gnd.
Be sure you pull sop2 to vcc and reset to gnd to reboot into UART mode.
If this is not working use a different computer or UART device.

How you wired everything?

1 Like

That’s a big one to check, It’s very common for people to forget that you have to reverse TX/RX on the UART device side, otherwise communication won’t happen.