CH554 not working // Getting Error: Entity not found with bcdDevice= 2.50

[moroslantia]

Running the tool detects a chip but throws Getting Error: Entity not found

... with bcdDevice= 2.50

# dmesg
[  312.677847] usb 1-1.1: new full-speed USB device number 3 using xhci-hcd
[  312.766875] usb 1-1.1: New USB device found, idVendor=4348, idProduct=55e0, bcdDevice= 2.50
[  312.766885] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0

# wchisp probe
06:44:31 [INFO] Found 1 USB device
06:44:31 [INFO] Opening USB device #0
Error: Entity not found

# wchisp -u -v info
07:00:48 [INFO] Opening USB device #0
07:00:48 [DEBUG] (1) wchisp::transport::usb: Found USB Device Bus 001 Device 007: ID 4348:55e0
Error: Entity not found

... with bcdDevice= 1.00

# dmesg
[ 1666.572116] usb 1-1.4: new full-speed USB device number 6 using xhci-hcd
[ 1666.661127] usb 1-1.4: New USB device found, idVendor=4348, idProduct=55e0, bcdDevice= 1.00
[ 1666.661137] usb 1-1.4: New USB device strings: Mfr=0, Product=0, SerialNumber=0

# wchisp probe
06:48:58 [INFO] Found 1 USB device
06:48:58 [INFO] Opening USB device #0
06:48:58 [INFO]         Device #0: CH554[0x5411]

# wchisp -v
06:57:18 [DEBUG] (1) wchisp::transport::usb: Found WCH ISP USB device #0: [Bus 001 Device 006: ID 4348:55e0]
06:57:18 [INFO] Found 1 USB device
06:57:18 [INFO] Opening USB device #0
06:57:18 [DEBUG] (1) wchisp::transport::usb: Found USB Device Bus 001 Device 006: ID 4348:55e0
06:57:18 [DEBUG] (1) wchisp::transport: => a11200   00004d4355204953502026205743482e434e
Error: Operation timed out

What to check or change?

[Szabka]

I have a similar behaviour, but right after plug in the board I receive a different error.

wchisp -u -v info
10:28:47 [INFO] Opening USB device #0
10:28:47 [DEBUG] (1) wchisp::transport::usb: Found USB Device Bus 004 Device 003: ID 4348:55e0
10:28:47 [DEBUG] (1) wchisp::transport: => a11200 00004d4355204953502026205743482e434e
Error: response command type mismatch

wchisp -u -v info
10:30:01 [INFO] Opening USB device #0
10:30:01 [DEBUG] (1) wchisp::transport::usb: Found USB Device Bus 004 Device 003: ID 4348:55e0
10:30:01 [DEBUG] (1) wchisp::transport: => a11200 00004d4355204953502026205743482e434e
Error: Operation timed out

I created a modified build to trace the raw response from the chip.
./wchisp -u -v info
12:28:11 [INFO] Opening USB device #0
12:28:11 [DEBUG] (1) wchisp::transport::usb: Found USB Device Bus 004 Device 008: ID 4348:55e0
12:28:11 [DEBUG] (1) wchisp::transport: => a11200 00004d4355204953502026205743482e434e
12:28:11 [DEBUG] (1) wchisp::transport: <=r fe00
Error: response command type mismatch

I don't know what this response code means.