first init
This commit is contained in:
218
light_ws2812_AVR/Light_WS2812/light_ws2812.c
Normal file
218
light_ws2812_AVR/Light_WS2812/light_ws2812.c
Normal file
@@ -0,0 +1,218 @@
|
||||
/*
|
||||
* light weight WS2812 lib V2.5b
|
||||
*
|
||||
* Controls WS2811/WS2812/WS2812B RGB-LEDs
|
||||
* Author: Tim (cpldcpu@gmail.com)
|
||||
*
|
||||
* Jan 18th, 2014 v2.0b Initial Version
|
||||
* Nov 29th, 2015 v2.3 Added SK6812RGBW support
|
||||
* Nov 11th, 2023 v2.5 Added support for ports that cannot be addressed with "out"
|
||||
* Added LGT8F88A support
|
||||
*
|
||||
* License: GNU GPL v2+ (see License.txt)
|
||||
*/
|
||||
|
||||
#include "light_ws2812.h"
|
||||
#include <avr/interrupt.h>
|
||||
#include <avr/io.h>
|
||||
#include <util/delay.h>
|
||||
|
||||
// Normally ws2812_sendarray_mask() runs under disabled-interrupt condition,
|
||||
// undefine if you want to accept interrupts in that function.
|
||||
#define interrupt_is_disabled
|
||||
|
||||
// Setleds for standard RGB
|
||||
void inline ws2812_setleds(struct cRGB *ledarray, uint16_t leds)
|
||||
{
|
||||
ws2812_setleds_pin(ledarray,leds, _BV(ws2812_pin));
|
||||
}
|
||||
|
||||
void inline ws2812_setleds_pin(struct cRGB *ledarray, uint16_t leds, uint8_t pinmask)
|
||||
{
|
||||
ws2812_sendarray_mask((uint8_t*)ledarray,leds+leds+leds,pinmask);
|
||||
_delay_us(ws2812_resettime);
|
||||
}
|
||||
|
||||
// Setleds for SK6812RGBW
|
||||
void inline ws2812_setleds_rgbw(struct cRGBW *ledarray, uint16_t leds)
|
||||
{
|
||||
ws2812_sendarray_mask((uint8_t*)ledarray,leds<<2,_BV(ws2812_pin));
|
||||
_delay_us(ws2812_resettime);
|
||||
}
|
||||
|
||||
void ws2812_sendarray(uint8_t *data,uint16_t datlen)
|
||||
{
|
||||
ws2812_sendarray_mask(data,datlen,_BV(ws2812_pin));
|
||||
}
|
||||
|
||||
/*
|
||||
This routine writes an array of bytes with RGB values to the Dataout pin
|
||||
using the fast 800kHz clockless WS2811/2812 protocol.
|
||||
*/
|
||||
|
||||
// Timing in ns
|
||||
#define w_zeropulse 350
|
||||
#define w_onepulse 900
|
||||
#define w_totalperiod 1250
|
||||
|
||||
// Fixed cycles used by the inner loop
|
||||
#if defined(__LGT8F__)
|
||||
#define w_fixedlow 4
|
||||
#define w_fixedhigh 6
|
||||
#define w_fixedtotal 10
|
||||
#else
|
||||
#define w_fixedlow 3
|
||||
#define w_fixedhigh 6
|
||||
#define w_fixedtotal 10
|
||||
#endif
|
||||
|
||||
// // Fixed cycles used by the inner loop
|
||||
// #define w_fixedlow 2
|
||||
// #define w_fixedhigh 4
|
||||
// #define w_fixedtotal 8
|
||||
|
||||
// Insert NOPs to match the timing, if possible
|
||||
#define w_zerocycles (((F_CPU/1000)*w_zeropulse )/1000000)
|
||||
#define w_onecycles (((F_CPU/1000)*w_onepulse +500000)/1000000)
|
||||
#define w_totalcycles (((F_CPU/1000)*w_totalperiod +500000)/1000000)
|
||||
|
||||
// w1 - nops between rising edge and falling edge - low
|
||||
#define w1 (w_zerocycles-w_fixedlow)
|
||||
// w2 nops between fe low and fe high
|
||||
#define w2 (w_onecycles-w_fixedhigh-w1)
|
||||
// w3 nops to complete loop
|
||||
#define w3 (w_totalcycles-w_fixedtotal-w1-w2)
|
||||
|
||||
#if w1>0
|
||||
#define w1_nops w1
|
||||
#else
|
||||
#define w1_nops 0
|
||||
#endif
|
||||
|
||||
// The only critical timing parameter is the minimum pulse length of the "0"
|
||||
// Warn or throw error if this timing can not be met with current F_CPU settings.
|
||||
#define w_lowtime ((w1_nops+w_fixedlow)*1000000)/(F_CPU/1000)
|
||||
#if w_lowtime>550
|
||||
#error "Light_ws2812: Sorry, the clock speed is too low. Did you set F_CPU correctly?"
|
||||
#elif w_lowtime>450
|
||||
#warning "Light_ws2812: The timing is critical and may only work on WS2812B, not on WS2812(S)."
|
||||
#warning "Please consider a higher clockspeed, if possible"
|
||||
#endif
|
||||
|
||||
#if w2>0
|
||||
#define w2_nops w2
|
||||
#else
|
||||
#define w2_nops 0
|
||||
#endif
|
||||
|
||||
#if w3>0
|
||||
#define w3_nops w3
|
||||
#else
|
||||
#define w3_nops 0
|
||||
#endif
|
||||
|
||||
#define w_nop1 "nop \n\t"
|
||||
#ifdef interrupt_is_disabled
|
||||
#define w_nop2 "brid .+0 \n\t"
|
||||
#else
|
||||
#define w_nop2 "brtc .+0 \n\t"
|
||||
#endif
|
||||
#define w_nop4 w_nop2 w_nop2
|
||||
#define w_nop8 w_nop4 w_nop4
|
||||
#define w_nop16 w_nop8 w_nop8
|
||||
|
||||
void inline ws2812_sendarray_mask(uint8_t *data,uint16_t datlen,uint8_t maskhi)
|
||||
{
|
||||
uint8_t curbyte,ctr,masklo;
|
||||
uint8_t sreg_prev;
|
||||
uint8_t *port = (uint8_t*) _SFR_MEM_ADDR(ws2812_PORTREG);
|
||||
|
||||
ws2812_DDRREG |= maskhi; // Enable output
|
||||
|
||||
masklo =~maskhi&ws2812_PORTREG;
|
||||
maskhi |= ws2812_PORTREG;
|
||||
|
||||
sreg_prev=SREG;
|
||||
#ifdef interrupt_is_disabled
|
||||
cli();
|
||||
#endif
|
||||
|
||||
while (datlen--) {
|
||||
curbyte=*data++;
|
||||
|
||||
asm volatile(
|
||||
" ldi %0,8 \n\t"
|
||||
#ifndef interrupt_is_disabled
|
||||
" clt \n\t"
|
||||
#endif
|
||||
"loop%=: \n\t"
|
||||
" st X,%3 \n\t" // '1' [02] '0' [02] - re
|
||||
|
||||
#if (w1_nops&1)
|
||||
w_nop1
|
||||
#endif
|
||||
#if (w1_nops&2)
|
||||
w_nop2
|
||||
#endif
|
||||
#if (w1_nops&4)
|
||||
w_nop4
|
||||
#endif
|
||||
#if (w1_nops&8)
|
||||
w_nop8
|
||||
#endif
|
||||
#if (w1_nops&16)
|
||||
w_nop16
|
||||
#endif
|
||||
#if defined(__LGT8F__)
|
||||
" bst %1,7 \n\t" // '1' [02] '0' [02]
|
||||
" brts 1f \n\t" // '1' [04] '0' [03]
|
||||
" st X,%4 \n\t" // '1' [--] '0' [04] - fe-low
|
||||
"1: lsl %1 \n\t" // '1' [05] '0' [05]
|
||||
#else
|
||||
" sbrs %1,7 \n\t" // '1' [04] '0' [03]
|
||||
" st X,%4 \n\t" // '1' [--] '0' [05] - fe-low
|
||||
" lsl %1 \n\t" // '1' [05] '0' [06]
|
||||
#endif
|
||||
#if (w2_nops&1)
|
||||
w_nop1
|
||||
#endif
|
||||
#if (w2_nops&2)
|
||||
w_nop2
|
||||
#endif
|
||||
#if (w2_nops&4)
|
||||
w_nop4
|
||||
#endif
|
||||
#if (w2_nops&8)
|
||||
w_nop8
|
||||
#endif
|
||||
#if (w2_nops&16)
|
||||
w_nop16
|
||||
#endif
|
||||
" brcc skipone%= \n\t" // '1' [+1] '0' [+2] -
|
||||
" st X,%4 \n\t" // '1' [+3] '0' [--] - fe-high
|
||||
"skipone%=: " // '1' [+3] '0' [+2] -
|
||||
#if (w3_nops&1)
|
||||
w_nop1
|
||||
#endif
|
||||
#if (w3_nops&2)
|
||||
w_nop2
|
||||
#endif
|
||||
#if (w3_nops&4)
|
||||
w_nop4
|
||||
#endif
|
||||
#if (w3_nops&8)
|
||||
w_nop8
|
||||
#endif
|
||||
#if (w3_nops&16)
|
||||
w_nop16
|
||||
#endif
|
||||
|
||||
" dec %0 \n\t" // '1' [+4] '0' [+3]
|
||||
" brne loop%=\n\t" // '1' [+5] '0' [+4]
|
||||
: "=&d" (ctr)
|
||||
: "r" (curbyte), "x" (port), "r" (maskhi), "r" (masklo)
|
||||
);
|
||||
}
|
||||
|
||||
SREG=sreg_prev;
|
||||
}
|
||||
98
light_ws2812_AVR/Light_WS2812/light_ws2812.h
Normal file
98
light_ws2812_AVR/Light_WS2812/light_ws2812.h
Normal file
@@ -0,0 +1,98 @@
|
||||
/*
|
||||
* light weight WS2812 lib include
|
||||
*
|
||||
* Version 2.3 - Nev 29th 2015
|
||||
* Author: Tim (cpldcpu@gmail.com)
|
||||
*
|
||||
* Please do not change this file! All configuration is handled in "ws2812_config.h"
|
||||
*
|
||||
* License: GNU GPL v2+ (see License.txt)
|
||||
+
|
||||
*/
|
||||
|
||||
#ifndef LIGHT_WS2812_H_
|
||||
#define LIGHT_WS2812_H_
|
||||
|
||||
#include "ws2812_config.h"
|
||||
#include <avr/io.h>
|
||||
#include <avr/interrupt.h>
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define Reset time in µs.
|
||||
//
|
||||
// This is the time the library spends waiting after writing the data.
|
||||
//
|
||||
// WS2813 needs 300 µs reset time
|
||||
// WS2812 and clones only need 50 µs
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
#if !defined(ws2812_resettime)
|
||||
#define ws2812_resettime 300
|
||||
#endif
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define I/O pin
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
#if !defined(ws2812_port)
|
||||
#define ws2812_port B // Data port
|
||||
#endif
|
||||
|
||||
#if !defined(ws2812_pin)
|
||||
#define ws2812_pin 0 // Data out pin
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Structure of the LED array
|
||||
*
|
||||
* cRGB: RGB for WS2812S/B/C/D, SK6812, SK6812Mini, SK6812WWA, APA104, APA106
|
||||
* cRGBW: RGBW for SK6812RGBW
|
||||
*/
|
||||
|
||||
struct cRGB { uint8_t g; uint8_t r; uint8_t b; };
|
||||
struct cRGBW { uint8_t g; uint8_t r; uint8_t b; uint8_t w;};
|
||||
|
||||
|
||||
|
||||
/* User Interface
|
||||
*
|
||||
* Input:
|
||||
* ledarray: An array of GRB data describing the LED colors
|
||||
* number_of_leds: The number of LEDs to write
|
||||
* pinmask (optional): Bitmask describing the output bin. e.g. _BV(PB0)
|
||||
*
|
||||
* The functions will perform the following actions:
|
||||
* - Set the data-out pin as output
|
||||
* - Send out the LED data
|
||||
* - Wait 50µs to reset the LEDs
|
||||
*/
|
||||
|
||||
void ws2812_setleds (struct cRGB *ledarray, uint16_t number_of_leds);
|
||||
void ws2812_setleds_pin (struct cRGB *ledarray, uint16_t number_of_leds,uint8_t pinmask);
|
||||
void ws2812_setleds_rgbw(struct cRGBW *ledarray, uint16_t number_of_leds);
|
||||
|
||||
/*
|
||||
* Old interface / Internal functions
|
||||
*
|
||||
* The functions take a byte-array and send to the data output as WS2812 bitstream.
|
||||
* The length is the number of bytes to send - three per LED.
|
||||
*/
|
||||
|
||||
void ws2812_sendarray (uint8_t *array,uint16_t length);
|
||||
void ws2812_sendarray_mask(uint8_t *array,uint16_t length, uint8_t pinmask);
|
||||
|
||||
|
||||
/*
|
||||
* Internal defines
|
||||
*/
|
||||
#if !defined(CONCAT)
|
||||
#define CONCAT(a, b) a ## b
|
||||
#endif
|
||||
|
||||
#if !defined(CONCAT_EXP)
|
||||
#define CONCAT_EXP(a, b) CONCAT(a, b)
|
||||
#endif
|
||||
|
||||
#define ws2812_PORTREG CONCAT_EXP(PORT,ws2812_port)
|
||||
#define ws2812_DDRREG CONCAT_EXP(DDR,ws2812_port)
|
||||
|
||||
#endif /* LIGHT_WS2812_H_ */
|
||||
34
light_ws2812_AVR/Light_WS2812/ws2812_config.h
Normal file
34
light_ws2812_AVR/Light_WS2812/ws2812_config.h
Normal file
@@ -0,0 +1,34 @@
|
||||
/*
|
||||
* light_ws2812_config.h
|
||||
*
|
||||
* v2.4 - Nov 27, 2016
|
||||
*
|
||||
* User Configuration file for the light_ws2812_lib
|
||||
*
|
||||
*/
|
||||
|
||||
|
||||
#ifndef WS2812_CONFIG_H_
|
||||
#define WS2812_CONFIG_H_
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define Reset time in µs.
|
||||
//
|
||||
// This is the time the library spends waiting after writing the data.
|
||||
//
|
||||
// WS2813 needs 300 µs reset time
|
||||
// WS2812 and clones only need 50 µs
|
||||
//
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
|
||||
#define ws2812_resettime 300
|
||||
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
// Define I/O pin
|
||||
///////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
#define ws2812_port B // Data port
|
||||
#define ws2812_pin 4 // Data out pin
|
||||
|
||||
#endif /* WS2812_CONFIG_H_ */
|
||||
Reference in New Issue
Block a user