Not getting ACK from FXOS8700C

キャンセル
次の結果を表示 
表示  限定  | 次の代わりに検索 
もしかして: 

Not getting ACK from FXOS8700C

1,376件の閲覧回数
nishant1
Contributor I

Hi,

I am having trouble getting an ACK from the FXOS8700C. It seems like it should be pretty straight forward. I am using the BRKT-STBC-AGM01 with my own MCU and even tried two boards in case one was damaged. I referenced this post as well: https://community.nxp.com/message/926172?q=BRKT-STBC-AGM01%20connections 

My connections on the below board:

J3.1, J3.3 - Vdd (3.3V)

J3.2, J4.5 - GND

J3.4 - SCL

J3.5 - SDA

Pinout.JPG

Here is the scope capture:

pastedImage_2.png

I cannot communicate to either sensor. My board communicates fine to other connected sensors. 

Any ideas? Thank you. 

0 件の賞賛
1 返信

1,304件の閲覧回数
nishant1
Contributor I

GPIO on MCU needed to be configured as Open Drain, it was previously configured as Push/Pull. Hopefully this can help someone else in the future!

0 件の賞賛
%3CLINGO-SUB%20id%3D%22lingo-sub-806825%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3EFXOS8700C%E3%81%8B%E3%82%89ACK%E3%82%92%E5%8F%97%E4%BF%A1%E3%81%A7%E3%81%8D%E3%81%BE%E3%81%9B%E3%82%93%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-806825%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%26lt%3Bmeta%20http-equiv%3D%22Content-Type%22%20content%3D%22text%2Fhtml%3B%20charset%3Dutf-8%22%20%2F%26gt%3B%0A%3CP%3E%E3%81%93%E3%82%93%E3%81%AB%E3%81%A1%E3%81%AF%E3%80%81%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3EFXOS8700C%20%E3%81%8B%E3%82%89%20ACK%20%E3%82%92%E5%8F%96%E5%BE%97%E3%81%A7%E3%81%8D%E3%81%BE%E3%81%9B%E3%82%93%E3%80%82%E3%81%9D%E3%82%8C%E3%81%AF%E3%81%8B%E3%81%AA%E3%82%8A%E7%B0%A1%E5%8D%98%E3%81%AA%E3%81%93%E3%81%A8%E3%81%AE%E3%82%88%E3%81%86%E3%81%AB%E6%80%9D%E3%81%88%E3%81%BE%E3%81%99%E3%80%82%E7%A7%81%E3%81%AF%E8%87%AA%E5%88%86%E3%81%AE%20MCU%20%E3%81%A7%20BRKT-STBC-AGM01%20%E3%82%92%E4%BD%BF%E7%94%A8%E3%81%97%E3%81%A6%E3%81%8A%E3%82%8A%E3%80%811%20%E3%81%A4%E3%81%AE%E3%83%9C%E3%83%BC%E3%83%89%E3%81%8C%E7%A0%B4%E6%90%8D%E3%81%97%E3%81%9F%E5%A0%B4%E5%90%88%E3%81%AB%E5%82%99%E3%81%88%E3%81%A6%202%20%E3%81%A4%E3%81%AE%E3%83%9C%E3%83%BC%E3%83%89%E3%82%92%E8%A9%A6%E3%81%97%E3%81%BE%E3%81%97%E3%81%9F%E3%80%82%E3%81%93%E3%81%AE%E6%8A%95%E7%A8%BF%E3%82%82%E5%8F%82%E7%85%A7%E3%81%97%E3%81%BE%E3%81%97%E3%81%9F%3A%20%3CA%20_jive_internal%3D%22true%22%20class%3D%22link-titled%22%20href%3D%22https%3A%2F%2Fcommunity.nxp.com%2Fmessage%2F926172%3Fq%3DBRKT-STBC-AGM01%2520connections%22%20title%3D%22https%3A%2F%2Fcommunity.nxp.com%2Fmessage%2F926172%3Fq%3DBRKT-STBC-AGM01%2520connections%22%20target%3D%22_blank%22%3Ehttps%3A%2F%2Fcommunity.nxp.com%2Fmessage%2F926172%3Fq%3DBRKT-STBC-AGM01%2520connections%3C%2FA%3E%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3E%E4%BB%A5%E4%B8%8B%E3%81%AE%E3%83%9C%E3%83%BC%E3%83%89%E4%B8%8A%E3%81%AE%E7%A7%81%E3%81%AE%E6%8E%A5%E7%B6%9A%3A%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3EJ3.1%E3%80%81J3.3%20-%20Vdd%EF%BC%883.3V%EF%BC%89%3C%2FP%3E%3CP%3EJ3.2%E3%80%81J4.5%20-%20GND%3C%2FP%3E%3CP%3EJ3.4%20-%20SCL%3C%2FP%3E%3CP%3E%3CSPAN%3EJ3.%3C%2FSPAN%3E%205%20-%20SDA%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22Pinout.JPG%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22Pinout.JPG%22%20style%3D%22width%3A%20400px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F75943i19C6F373D4773628%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22Pinout.JPG%22%20alt%3D%22Pinout.JPG%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3E%E3%82%B9%E3%82%B3%E3%83%BC%E3%83%97%E3%82%AD%E3%83%A3%E3%83%97%E3%83%81%E3%83%A3%E3%81%AF%E6%AC%A1%E3%81%AE%E3%81%A8%E3%81%8A%E3%82%8A%E3%81%A7%E3%81%99%E3%80%82%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_2.png%22%3E%3Cspan%20class%3D%22lia-inline-image-display-wrapper%22%20image-alt%3D%22pastedImage_2.png%22%20style%3D%22width%3A%20999px%3B%22%3E%3Cimg%20src%3D%22https%3A%2F%2Fcommunity.nxp.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F75896i733ACA7CE1E4FD81%2Fimage-size%2Flarge%3Fv%3Dv2%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22pastedImage_2.png%22%20alt%3D%22pastedImage_2.png%22%20%2F%3E%3C%2Fspan%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3E%E3%81%A9%E3%81%A1%E3%82%89%E3%81%AE%E3%82%BB%E3%83%B3%E3%82%B5%E3%81%A8%E3%82%82%E9%80%9A%E4%BF%A1%E3%81%A7%E3%81%8D%E3%81%BE%E3%81%9B%E3%82%93%E3%80%82%E7%A7%81%E3%81%AE%E3%83%9C%E3%83%BC%E3%83%89%E3%81%AF%E3%82%B3%E3%83%8D%E3%82%AF%E3%83%86%E3%83%83%E3%83%89%E4%BB%96%E3%81%AE%E3%82%BB%E3%83%B3%E3%82%B5%E3%81%A8%E6%AD%A3%E5%B8%B8%E3%81%AB%E9%80%9A%E4%BF%A1%E3%81%97%E3%81%BE%E3%81%99%E3%80%82%3C%2FP%3E%3CP%3E%3C%2FP%3E%3CP%3E%E4%BD%95%E3%81%8B%E3%82%A2%E3%82%A4%E3%83%87%E3%82%A2%E3%81%AF%E3%81%82%E3%82%8A%E3%81%BE%E3%81%99%E3%81%8B%3F%E3%81%82%E3%82%8A%E3%81%8C%E3%81%A8%E3%81%86%E3%80%82%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-806826%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20Not%20getting%20ACK%20from%20FXOS8700C%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-806826%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%26lt%3Bmeta%20http-equiv%3D%22Content-Type%22%20content%3D%22text%2Fhtml%3B%20charset%3Dutf-8%22%20%2F%26gt%3B%0A%3CP%3EMCU%20%E4%B8%8A%E3%81%AE%20GPIO%20%E3%81%AF%E3%80%81%E4%BB%A5%E5%89%8D%E3%81%AF%E3%83%97%E3%83%83%E3%82%B7%E3%83%A5%2F%E3%83%97%E3%83%AB%E3%81%A8%E3%81%97%E3%81%A6%E6%A7%8B%E6%88%90%E3%81%95%E3%82%8C%E3%81%A6%E3%81%84%E3%81%BE%E3%81%97%E3%81%9F%E3%81%8C%E3%80%81%E3%82%AA%E3%83%BC%E3%83%97%E3%83%B3%20%E3%83%89%E3%83%AC%E3%82%A4%E3%83%B3%E3%81%A8%E3%81%97%E3%81%A6%E6%A7%8B%E6%88%90%E3%81%99%E3%82%8B%E5%BF%85%E8%A6%81%E3%81%8C%E3%81%82%E3%82%8A%E3%81%BE%E3%81%97%E3%81%9F%E3%80%82%E3%81%93%E3%82%8C%E3%81%8C%E5%B0%86%E6%9D%A5%E4%BB%96%E3%81%AE%E8%AA%B0%E3%81%8B%E3%81%AE%E5%BD%B9%E3%81%AB%E7%AB%8B%E3%81%A4%E3%81%93%E3%81%A8%E3%82%92%E9%A1%98%E3%81%A3%E3%81%A6%E3%81%84%E3%81%BE%E3%81%99!%3C%2FP%3E%3C%2FLINGO-BODY%3E