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BQ24780S: BQ24780S/ TIDA-00657 no connection to EV2400

Martin v KA
Prodigy 60 points
Part Number: BQ24780S
Other Parts Discussed in Thread: BQSTUDIO, EV2400, TIDA-00657, , BQ40Z50-R1, TIDA-00883

Hello,

we have the development kit of BQ24780S/ TIDA-00657 and the programming adapter EV2400. We can't get any connection to BQ24780S/ TIDA-00657 via SMbus/ EV2400 to bqstudio. But it works at our target cpu (intel atom qseven), there i can see the charging information from BQ24780S and this is directly connected with SMbus to the CPU. All connections are checked as they are mentioned in the manual.

Our EV2400 works with battery fuel gauge BQ40Z50-R1/ TIDA-00883.

Has anyone an idea why we can't connect it with bqstudio to BQ24780S/ TIDA-00657?

System Windows 7 64 bit. We used this user guide: www.ti.com/.../sluuba6.pdf