Sp09 speed and direction pins
Just built the motor drive for the SP09 and it working, but want to confirm which jumper pins are for speed and direction, I know it’s the top four, but which three are speed and which is for direction
And now I seen the video of the SP11, and the drive is going in that instead 🥺
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The algorithm evolved since the earliest clocks. The jumper for direction was re-purposed to select debug modes. I use these to test the boards on my Etsy shop. Reversing the motor can be accomplished by rotating the 4 pin connector.
Here are the modes in the latest algorithm:
Motor speed settings (subject to change)
0: 00000 1.000 RPM reserved
1: 00001 4.630 RPM SP10 with 200 step motors
2: 00010 4.630 RPM SP10 with 400 step motors
3: 00011 3.600 RPM SP6 with 200 step motors
4: 00100 4.667 RPM SP9 with 200 step motors
5: 00101 6.944 RPM SP11 with 200 step motors
6: 00110 6.944 RPM SP11 with 400 step motors
7: 00111 20.00 RPM fast debug mode
Debug routines
8: 01000 LED off no test running
9: 01001 LED on simple hardware test
10: 01010 LED on simple hardware test
11: 01011 Delay test LED will blink at 1Hz (0.5s on, 0.5s off)
12: 01100 LED on simple hardware test
13: 01101 RTC test LED should blink at 0.5Hz if RTC is working
14: 01110 Rotate CW Rotate motor one direction at medium speed
15: 01111 Rotate CCW Rotate motor in opposite direction at high speed
Steve