As used for motor testing May / June 2016
Dependencies: iC_MU mbed-rtos mbed
Fork of SweptSine by
Diff: PanVelocityLoop.cpp
- Revision:
- 2:be3b6a72f823
- Parent:
- 1:0f0423207b62
diff -r 0f0423207b62 -r be3b6a72f823 PanVelocityLoop.cpp --- a/PanVelocityLoop.cpp Tue Mar 22 10:57:41 2016 +0000 +++ b/PanVelocityLoop.cpp Tue Mar 22 15:35:01 2016 +0000 @@ -10,7 +10,7 @@ #define Lower (1<<(bits-5)) // 8192 counts = 11.25 degrees #define Upper OneTurn - Lower // 262144 - 8192 = 253952 -extern iC_MU icMu; +extern iC_MU icMu, icMu_Output; extern PwmOut Pan_Motor_PWM; extern DigitalOut Pan_Motor_Direction; extern Classic_PID PanVelocityPID; @@ -26,38 +26,41 @@ void PanVelocityLoop(void const *args) { - float Duty_Cycle = 0.0; - - // Find the icMu data - int icMuPosition = icMu.ReadPOSITION() >> (19 - bits); // Read the current position from the iC-MU and bitshift to reduce noise - int icMuVelocity = icMuPosition - LasticMuPosition; // Calculate change in position (i.e. Velocity) - - if(running){ - pc.printf("\n\r%d %d",run_count,icMuPosition); - - if(run_count < 5000){ - PanVelocityPID.setSetPoint(amplitude * sin((a*run_count*run_count)+(b*run_count))); - run_count++; // Inc run_count + float Duty_Cycle = 0.0; + + // Find the icMu data + int icMuPosition = icMu.ReadPOSITION(); // Read the current position from the iC-MU + PanVelocityPID.setProcessValue(icMuPosition); // Pass the Position onto the PID loop + + //int icMuPosition = icMu.ReadPOSITION() >> (19 - bits); // Read the current position from the iC-MU and bitshift to reduce noise + //int icMuVelocity = icMuPosition - LasticMuPosition; // Calculate change in position (i.e. Velocity) + + if(running) { + pc.printf("\n\r%d %d %d",run_count,icMuPosition,icMu_Output.ReadPOSITION()); + + if(run_count < 5000) { + PanVelocityPID.setSetPoint(262144 + (amplitude * sin((a*run_count*run_count)+(b*run_count)))); + run_count++; // Inc run_count } else { running = 0; // Stop the test - PanVelocityPID.setSetPoint(0); + //PanVelocityPID.setSetPoint(0); } } - - // Check to see if the icMu has gone past the index point - if(icMuPosition < Lower & LasticMuPosition > Upper) { // The icMu has gone over the index point in 1 direction - icMuVelocity += OneTurn; - } else if(icMuPosition > Upper & LasticMuPosition < Lower) { // The icMu has gone over the index point in the other direction - icMuVelocity -= OneTurn; - } - - LasticMuPosition = icMuPosition; // Update new position from next time - - // Set the process value - PanVelocityPID.setProcessValue(icMuVelocity); // Pass the Velocity onto the PID loop + /* + // Check to see if the icMu has gone past the index point + if(icMuPosition < Lower & LasticMuPosition > Upper) { // The icMu has gone over the index point in 1 direction + icMuVelocity += OneTurn; + } else if(icMuPosition > Upper & LasticMuPosition < Lower) { // The icMu has gone over the index point in the other direction + icMuVelocity -= OneTurn; + } - - Duty_Cycle = PanVelocityPID.compute(); + LasticMuPosition = icMuPosition; // Update new position from next time + + // Set the process value + PanVelocityPID.setProcessValue(icMuVelocity); // Pass the Velocity onto the PID loop + */ + + Duty_Cycle = PanVelocityPID.compute_ff(); if(Duty_Cycle < 0) { Pan_Motor_Direction = 1;