ManuelW/grbl-LPC-CoreXY
1
0
Fork 0
Code Issues Pull Requests Releases 1 Wiki Activity

Addressed optional PWM min value issue. Updated docs.

Browse Source 
- [fix] Spindle PWM minimum value had some typos. Fixed the macros to
compile correctly. Only effects users that enable SPINDLE_MINIMUM_PWM.
The name changed to SPINDLE_PWM_MIN_VALUE for consistency sake.

- Updated the laser documentation.
This commit is contained in:
Sonny Jeon
2016-12-18 19:17:55 -07:00
parent af17f0071f
commit d5ed3bdb81
5 changed files with 65 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
grbl/config.h
View File

@ -345,9 +345,9 @@
// and the voltage set by the minimum PWM for minimum rpm. This difference is 0.02V per PWM value. So, when
// minimum PWM is at 1, only 0.02 volts separate enabled and disabled. At PWM 5, this would be 0.1V. Keep
// in mind that you will begin to lose PWM resolution with increased minimum PWM values, since you have less
// and less range over the total 256 PWM levels to signal different spindle speeds.
// NOTE: Compute duty cycle at the minimum PWM by this equation: (% duty cycle)=(SPINDLE_MINIMUM_PWM/256)*100
// #define SPINDLE_MINIMUM_PWM_VALUE 5 // Default disabled. Uncomment to enable. Must be greater than zero. Integer (1-255).
// and less range over the total 255 PWM levels to signal different spindle speeds.
// NOTE: Compute duty cycle at the minimum PWM by this equation: (% duty cycle)=(SPINDLE_PWM_MIN_VALUE/255)*100
// #define SPINDLE_PWM_MIN_VALUE 5 // Default disabled. Uncomment to enable. Must be greater than zero. Integer (1-255).
// By default on a 328p(Uno), Grbl combines the variable spindle PWM and the enable into one pin to help
// preserve I/O pins. For certain setups, these may need to be separate pins. This configure option uses

4
grbl/cpu_map.h
View File

@ -125,9 +125,7 @@
// Variable spindle configuration below. Do not change unless you know what you are doing.
// NOTE: Only used when variable spindle is enabled.
#define SPINDLE_PWM_MAX_VALUE 255 // Don't change. 328p fast PWM mode fixes top value as 255.
#ifdef SPINDLE_MINIMUM_PWM
#define SPINDLE_PWM_MIN_VALUE SPINDLE_MINIMUM_PWM
#else
#ifndef SPINDLE_PWM_MIN_VALUE
#define SPINDLE_PWM_MIN_VALUE 1 // Must be greater than zero.
#endif
#define SPINDLE_PWM_OFF_VALUE 0

8
grbl/grbl.h
View File

@ -23,7 +23,7 @@
// Grbl versioning system
#define GRBL_VERSION "1.1e"
#define GRBL_VERSION_BUILD "20161208"
#define GRBL_VERSION_BUILD "20161218"
// Define standard libraries used by Grbl.
#include <avr/io.h>
@ -82,9 +82,9 @@
#endif
#endif
#if defined(SPINDLE_MINIMUM_PWM)
#if !(SPINDLE_MINIMUM_PWM > 0)
#error "SPINDLE_MINIMUM_PWM must be greater than zero."
#if defined(SPINDLE_PWM_MIN_VALUE)
#if !(SPINDLE_PWM_MIN_VALUE > 0)
#error "SPINDLE_PWM_MIN_VALUE must be greater than zero."
#endif
#endif