Other Parts Discussed in Thread: EV2400, BQSTUDIO
Tool/software:
I'm trying to use the BQ40Z80EVM-020 and having a hard time connecting. So far I have:
- updated the onboard EV2400 firmware to version 0.32
- Tried external EV2400, which successfully updated to firmware version 0.32
- Tried connecting with batteries disconnected and 3s batteries connected to J12
- try to connect with Battery Management studio
- selecting 4800_0_02-bq40z80.bqz chip
- I get a warning: "The detected devie is not compatible with this application!..."
- Try to scan or get info from the device results in the Battery Management Studio application crashing or getting the message "No acknowledgement from device" .
- Here are some communications signals from the SMBD1 and SMBC1 jumpers that jumper from external to internal EV2400
- selecting 4800_0_02-bq40z80.bqz chip
- Try the Python API example and get the following logs:
PS C:\Program Files (x86)\Texas Instruments\BQ-BATTERY-PROGRAMMER-SW\BQ-BMS-PROGRAMMER-SW\Python_API> & 'C:\Users\COSMED USER\AppData\Local\Programs\Python\Python313-32\python.exe' .\PythonAPIExample.py 2147483647 32 Testing Connect Connecting... Failed to open connection. Windows error code 0x5 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x5 Failed to open connection. Windows error code 0x5 Failed to open connection. Windows error code 0x5 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x5 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x20 Failed to open connection. Windows error code 0x5 Error: Adapter not found!. Error code = 302 Connect result: Connected = False Testing SMBusCommand Failed to open connection. Windows error code 0x3 Failed to reconnect to . Error code = 311 SMBusCommand result: 61 Error 61 Description: 61 ERROR_HANDLE_NOT_INIT // The adapter USB connected was not initialized Testing SMBusWriteWord Failed to open connection. Windows error code 0x3 Failed to reconnect to . Error code = 311 SMBusWriteWord result: 61 Testing SMBusReadWord Failed to open connection. Windows error code 0x3 Failed to reconnect to . Error code = 311 SMBusReadWord result: Failed communication with error code 61 Error 61 Description: 61 ERROR_HANDLE_NOT_INIT // The adapter USB connected was not initialized Testing SMBusWriteBlock Failed to open connection. Windows error code 0x3 Failed to reconnect to . Error code = 311 SMBusWriteBlock result: 61 Testing WaitMilliseconds Testing SMBusReadBlock Failed to open connection. Windows error code 0x3 Failed to reconnect to . Error code = 311 SMBusReadBlock result: Failed communication with error code 61 done PS C:\Program Files (x86)\Texas Instruments\BQ-BATTERY-PROGRAMMER-SW\BQ-BMS-PROGRAMMER-SW\Python_API> & 'C:\Users\COSMED USER\AppData\Local\Programs\Python\Python313-32\python.exe' .\PythonAPIExample.py
System:
- Windows 11 Pro
- Battery Management Studio Version: 1.3.101.1
Questions:
- Is there a schematic or design files for the bq40z80EVM-020? I'm trying to monitor the signals going to the chip from the EV2400 and want to be sure I'm monitoring the correct signals.
- Anything else I should test?