EV2300 "No acknowledge from device"

Haris Sibonjic

Other Parts Discussed in Thread: BQ40Z60EVM-578, BQSTUDIO, BQ40Z60

Hello, I have purchased EV2300 and BQ40Z60EVM-578 from TI online store. I followed the instruction from the user manual, how to connect EV2300 with bq40z60 and also EV2300 to PC, and installed drivers from your official site, and also Bqstudio. Everything was working fine for the first two days, I could read and set the registers on bq40z60 via Bqstudio and EV2300. The next day i started the learning cycle and got the error in Bqstudio "No acknowledgement from device".Since then every time I try to connect Bq40z60 and EV2300 I am getting the same error. I could read the registers from Bq40z60 via cp2112 USB to SM-bus bridge without any problems. So i think the problem is with EV2300 and not Bq40z60. I tryed to install Bqstudio with appropriate drivers on different operating systems(Windows XP x32 SP2,Windows XP x32 SP3,Windows 7 x64,Windows 10) and also different PCs. I am always getting the same error "No acknowledgement from device". I will attach Bqstudio log file. Is there any way to check if my EV2300 is broken.

Thanks.

EV2300.log

Error Log

Message,Source_plugin,User_level_Operation,TimeStamp,
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:22
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:23
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:24
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25
No acknowledge from device.,Register,Refresh,10:09:25

over 8 years ago

0 ThomasCosby over 8 years ago

TI__Guru 73830 points

If you can communicate with the EVM using another tool and the gauge is working properly, then ther must be a problem with the EV2300 or the bqStudio setup. Confirm that you have the cable connected to the SMBus port on the EV2300. This is a common problem that some people encounter. If this is good, then envoke bqStudio and check the SMBus signals at the EVM connector. Check the signal integrity and whether any ACKs are occurring.

0 Haris Sibonjic over 8 years ago in reply to ThomasCosby

Prodigy 60 points

Hi, I have checked two cable connectors with my multimeter and they are fine, so I can confirm that the cable connection is not the problem. I can also confirm that I haven't received a single one ACK packet.

0 ThomasCosby over 8 years ago in reply to Haris Sibonjic

TI__Guru 73830 points

Is the SMBus address set to 16? CAn you check to see whether any of the thermistors are pulsing? This would indicate whether the firmware is running.

0 Haris Sibonjic over 8 years ago in reply to ThomasCosby

Prodigy 60 points

I can confirm that the address is set to 0x16. Which thermistors do you mean, on bq40z60 or on EV2300. If on bq40z60 can you send me the name for the termistors on shematic.

0 Haris Sibonjic over 8 years ago in reply to Haris Sibonjic

Prodigy 60 points

I checked on RT1, RT2, RT3, RT4 on bq40z60 for the pulsing signal, and all four are pulsing. So, I can confirm that pulses are present on RT1, RT2, RT3, and RT4 on bq40z60.

0 ThomasCosby over 8 years ago in reply to Haris Sibonjic

TI__Guru 73830 points

It sounds like your EV2300 is defective, since the EVM is working and you get the same results with several PCs.

Power management

Power management forum

EV2300 "No acknowledge from device"