Hello,
I am working with a TMS320F28335 with Experimenter Kit: Delfino Control Card with Docking Station USB-EMU [R3].
I made an algorithm using Simulink and I run it on the hardware by loading the ".out" file by using CCSv5 in debug mode.
I set the Sample Time in Simulink as 20 µs and I created a routine to set a GPIO to the state "ON", during one "SampleTime" ( 20 µs ), then "OFF" for another 9 "SampleTimes".
When I run the program, I can measure the amount of time every program loop with an osciloscope connected to that GPIO. In this case, the osciloscope shows a rectangular wave with period = 200µs, remaining "ON" for 20 µs and "OFF" for 180 µs.
As I expand my argorithm in Simulink, the simulation seems OK, but when I run the new program on the board, the Sample Time is multiplied by a few times its original value of 20 µs.
My question is: did i put too many operations for a very small amount of time, in a way the board cannot execute within the Sample Time I defined in Simulink?
I noticed that my algorithm runs in loop of 20µs again, when i disconnect the output wire from the hardware output block (I am using aGPIO or a PWM block as output signal in the end of my algorithm).
Can it be solved with a hardware configuration on CCS or Simulink?
Kind Regards
Leo
