sid8580
Member

I really appreciate the extra depth, Paul. Now just indirectly directly related to the port expander, as I'm thinking aloud - My current project uses gyro/IMU data (among many other things!) and I fought against...

Ouch, sorry to hear that and hope you are back on track! I've been working on the same project for ~2 years now... setbacks like these (i.e. 20 hours of work trying to fix a problem that ended with a smoked...

Now the computer won't see the Teensy and something's (DMG2305UX mosfet) gets too hot to be functioning normally... I guess it's time to order a new one and start over :mad: Thanks again for the help. All that extra...

While checking my wiring on the Teensy end, I had to remove the hot glue which resulted in then needing to resolder several of the SDIO pads. In the process I tore off the GND pad completely. Figured if I was going to...

neurofun - those are some black and white facts, thank you (and defragster) for removing all ambiguity. I'm working on it now, will report back once it's working.

I flipped the pins, both mirroring both the original 1-to-1 layout I had originally, and then I tried it again but staggering the last couple of pins per neurofun's example. Then I put it back and added the capacitor. ...

Hmm. Looks like I need to reverse the pin order, from what I'm seeing in that second thread. Crossing fingers this is the answer :-)

Can anyone else confirm how they have their SD cards connected to the T4, and which libraries/sketches they are using successfully (and with what changes made, if any) - in the same manner neurofun did (very clear and...

I'm assuming you're using the original SD library (v1.2.2), instead of SdFat-Beta? I tried CardInfo.ino from the builtin examples as you did, with the same code change and the same wiring, it still won't initialize. ...

You're right, the files are huge. Even the .PNG's, wow. Fixing now.

Hi neurofun, thanks for the info, wish I could say that worked. I could use some help sanity checking this if one of you guys wouldn't mind - running out of ideas. Here are some pics. Here is the wiring...

Thanks for the response. Tried a cap between VDD and VSS (3.3v and GND) on the card holder and no go. Looks like that's where it should be according to that breakout schematic. Looks like I can use those pins just...

Defragster, thank you! This was one of those things I struggled with early on and found a way out of via i2c_t3, as a side effect it became the ONLY method I knew (at least for the extra busses). Maybe I haven't...