Which of the above counting methods is used for QEP modules?
X1 X2 or X4 ?
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Which of the above counting methods is used for QEP modules?
X1 X2 or X4 ?
Hi Shaoxiong,
Please see the eQEP section 7 in the TRM document below for specific details on the peripheral.
https://www.ti.com/lit/spruh18
Best,
Kevin
thank you, Kelvin; i have found that code in hal.c writing :
QEP_set_QEP_source(obj->qepHandle[qep], QEP_Qsrc_Quad_Count_Mode);
so Instaspin adopt the Quadrature Count Mode;
and another question: what‘s the Maximum sampling frequency of eQep, i didn't find it in spruh18.
Hi Shaoxiong,
and another question: what‘s the Maximum sampling frequency of eQep, i didn't find it in spruh18.
The device datasheet typically has this kind of peripheral information. See section 8.9.13.1 eQEP Electrical Data/Timing, also SCO = SYSCLKOUT for reference.
https://www.ti.com/lit/ds/symlink/tms320f28069.pdf
Best,
Kevin