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AutoQuad Forum • View topic - Using M4 with BLDCs - Short How to
Page 4 of 11

Re: Using M4 with BLDCs - Short How to

PostPosted: Tue Dec 23, 2014 3:00 pm
by aBUGSworstnightmare

Re: Using M4 with BLDCs - Short How to

PostPosted: Tue Dec 23, 2014 7:47 pm
by aBUGSworstnightmare
Added r440 firmware for use with external BLDC to first post.
QUATOS and PID version for BETA and V2 production boards.

ADC connector (LiPo voltage detector input) on V2 boards (M4

PostPosted: Thu Dec 25, 2014 9:10 am
by aBUGSworstnightmare

Re: Using M4 with BLDCs - Short How to

PostPosted: Thu Dec 25, 2014 9:51 am
by Max
If you bear with us a few days, we should have an option in the firmware to enable using the external voltage sensor/divider via a parameter. As of right now you'd still need some way to use ext. V as the main Vin (fw hack).

-Max

Re: Using M4 with BLDCs - Short How to

PostPosted: Fri Dec 26, 2014 1:40 pm
by aBUGSworstnightmare

Re: Using M4 with BLDCs - Short How to

PostPosted: Sat Jan 03, 2015 9:01 am
by Max

Re: Using M4 with BLDCs - Short How to

PostPosted: Sat Jan 03, 2015 9:25 am
by aBUGSworstnightmare
Hi Max,

SPI1 should be disabled since I don't know what PA6 is used for on the Cypress radio. In addition, voltage sensing only works on production boards when using external receivers. As soon as the Cypress is enabled (solder jumper on arm 2 on TOP closed) PA6 will be used for SPI! --> no more ADC readings! On V2 production boards the preference should be to use the ADC input.
Advanced users can get rid of the additional cable by using a custom board file (and knowing what they are doing).

Nevertheless, such a custom board file (with disabled SPI1 and PA6 enabled for ADC input) could be used for the BETA boards (M4r5).

Joerg

Re: Using M4 with BLDCs - Short How to

PostPosted: Sat Jan 03, 2015 9:49 am
by Max

Re: Using M4 with BLDCs - Short How to

PostPosted: Sat Jan 03, 2015 9:59 am
by aBUGSworstnightmare

Re: Using M4 with BLDCs - Short How to

PostPosted: Sat Jan 03, 2015 10:35 am
by Max
Excellent, thanks. I'm going to use it with an r4 for now, but it would be cool if it worked with v2 as well. Yes, it's time to build something (with hardware)! :)

-Max