Terminal Question
Beavis3215
Posts: 229
in Propeller 1
/* Fidget Spinner Motor
Auto time version
Pin 19 is on sensor input
Pin 18 is off sensor input
Pin 17 is magnet controller output
Pin 16 is timing light output
Pin 15 is timing advance input
Pin 14 is timing retard input
Pin 13-8 is binary timing output
*/
#include "simpletools.h" // Include simple tools
void button_time();
void time_it();
static volatile int delay, on_sensor, off_sensor; //all global
int main() // Main function
{
clkset(0b01101111, 80000000);
cog_run(button_time,128); // Push button control runs in other cog
cog_run(time_it,128); // Times magnet on sensor to magnet off sensor
on_sensor = 1 << 19;
off_sensor = 1 << 18;
int magnet = 1 << 17;
int t_light = 1 << 16;
DIRA &= ~(1 << 19);
DIRA &= ~(1 << 18);
DIRA |= (magnet);
DIRA |= (t_light);
while(1)
{
if ((INA & on_sensor) == on_sensor) // If on sensor high
{
OUTA |= (magnet); // Turn magnet on
}
if ((INA & off_sensor) == off_sensor) // If off sensor high
{
pause(delay); // Delay is assigned in button_time
OUTA &= ~(magnet); // Turn magnet off
OUTA |= (t_light); // Timing light on
pause(1);
OUTA &= ~(t_light); // Timing light off
}
}
}
void button_time()
{
int lights = 0b111111 << 8; //Timing delay LED's
int advance = 1 << 15;
int retard = 1 << 14;
DIRA &= ~(advance);
DIRA &= ~(retard);
DIRA |= (lights);
int t = 20;
while(1)
{
if ((INA & retard) == retard) // If retard button high
{
t++ ;
if (t > 64) // Don't allow t to exceed 64
{
t = 64;
}
}
if ((INA & advance) == advance) // If advance button high
{
t-- ;
if (t < 1) // Keep t 1 or larger
{
t = 1;
}
}
delay = t; // Pass delay to main function
OUTA = (OUTA & ~(lights)) | (t << 8 ); // Put t value on output lights
pause(300);
}
}
void time_it()
{
unsigned int uS, t_initial, t_final;
int pass_number = 0;
int total_passes = 10;
int total = 0;
uS = CLKFREQ/1000000;
int elapsed;
while(1)
{
print("main loop test");
while(pass_number <= total_passes)
{
waitpeq(on_sensor, on_sensor); // Wait for on sensor high
print("on_sensor test");
t_initial = CNT;
waitpeq(off_sensor, off_sensor); // Wait for off sensor high
print("off_sensor test");
t_final = CNT;
total = total + (t_final - t_initial); // Accumulate time for total amount of passes(in ticks)
pass_number++;
}
elapsed = (total * uS)/total_passes; // Calculate average pass time in uS
print("Elapsed Time = %d\n", elapsed);
pass_number = 0;
total = 0;
}
}
This is the fidget spinner motor code so far. The motor runs, but I get no output from time_it on terminal.
The Flip and all magnet control hardware run on a LIPO battery pack. Is it a code problem or a power conflict
between the LIPO and the USB power when using terminal? It could also be an Apple problem since I have found
at least one incompatibility between Apple and Simple-IDE.
Comments
learn.parallax.com/tutorials/language/propeller-c/multicore-approaches/print-different-core
void time_it() { unsigned int uS, t_initial, t_final; int pass_number = 0; int total_passes = 20; int total = 0; uS = CLKFREQ/1000000; int elapsed; while(1) { simpleterm_open(); while(pass_number <= total_passes) { waitpeq(on_sensor, on_sensor); // Wait for on sensor high t_initial = CNT; waitpeq(off_sensor, off_sensor); // Wait for off sensor high t_final = CNT; total = total + (t_final - t_initial); // Accumulate time for total amount of passes(in ticks) pass_number++; } elapsed = (total / uS)/total_passes; // Calculate average pass time in uS print("Elapsed Time = %d\n", elapsed); pass_number = 0; total = 0; } }I have two Hall sensors oriented around a turning fidget spinner. One sensor is on_sensor, the other is off_sensor. time_it is meant to time the small area where one spinner weight passes on_sensor, and shortly after the next clockwise weight passes off_sensor. The output is close to what I expect; however, you can plainly see that the time alternates higher, lower, higher, lower, by about a millisecond or so. I think that the code is good. Could this variation be due to what the propeller hub does? I have 3 routines running in different hubs, but this one runs alone, or is not meant to interact with the others.
gives a negative number in its present form.
I know roughly what the problem is but don't fully understand, could you please help?