NetBurner Community Forum

It's working.

I finally figured out that the standard build does not include quadrature as part of the eTPU so I went to the Freescale website and created my own custom eTPU build and now it works!!

Excellent!

Dave...

Hi all, I have worked out that the Quadrature is not actually built into my standard setup so I have used the code generator on the Freescale website to create an eTPU configuration that matches my setup. I have copied the neccessary files to the eTPU directory, making sure I add any Netburner code ...

It would appear that the Quadrature decoder is not included with the NNDK set that gets loaded into the eTPU.

There is another set for this but I see that it does not support UART and I need both UART and QD in the same set.!!


Off to do some more digging.

Dave...

Hi Walter, I sorted the crash. I made the usual mistake with pointers and passed in the value instead of a pointer to it. Oops. Still not getting any counts but that might be the configuration. Maybe you can help with this. This is what I have for config. The encoder is 30ppr. fs_etpu_qd_init(GPIO_E...

OK, been doing some debugging and getting something strange in this function call. int24_t fs_etpu_qd_get_pc( uint8_t channel_primary) { return(fs_etpu_get_chan_local_24s(channel_primary, FS_ETPU_QD_PC_OFFSET)); } The call to fs_etpu_get_chan_local_24s does return, but when this function goes to ret...

Actually, I can still build my main application with the release version and debug into the code but it would be nice to have this working properly.

Dave...

I have no classes within this build as it is C source only. There is no referrence to any DEBUG function or filename of that type either.

It also reports that there is a clash in the file name, yet the debug directory never even gets created before the error appears.

Dave...

Has anyone here worked with the quadrature input on the eTPU of the MOD5234? I have a panel mounted rotary encoder that generates 30 pulse per rev and I can see the input pins on the device clocking as I turn the knob. The issue I have is in setting up and reading the eTPU for QD input. I use the fo...

Rats!! It was the file name.

It was simply a .c file so it was being treated as a C file.

Once I changed it to .cpp it compiles perfectly as C++.!

Dave...

I get the following error on build and I can't see what I am missing. C:\nburn\include/pins.h:55: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'PinIO' I also get this error in the main code when I try to use the PINS class. ..\touchdrv.c:335: error: 'J2' undeclared (first use in th...