Time Difference(Delta) Operation in ECAP

Saim

Hi, I want to use ECAP with delta mode. on every capture event, counter(TSCTR) is loaded to CAPx register and reset, normally. but this doesnt work.

for delta mode operation i set the CTRRST1 bit (ECap1Regs.ECCTL1.bit.CTRRST1 = 1; (EC_DELTA_MODE) ) , still ecap is running in continious mode, counter is not reset at any event. however i applied the same code in reference guide, the problem is going on.

mcu: F2808

eCAP reference guide:

focus.ti.com/lit/ug/spru807b/spru807b.pdf

over 15 years ago

0 IanB over 15 years ago

TI__Intellectual 1265 points

You might download and install the following:
http://focus.ti.com/docs/toolsw/folders/print/sprc191.html

After installation, you will have a number of peripheral examples, including one that configures ecap for the mode you are describing. This is a complete, ready to run example. That particular example can be found at:
C:\tidcs\c28\dsp280x\v170\DSP280x_examples_ccsv4\ecap_capture_pwm
after the install.

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Time Difference(Delta) Operation in ECAP