Greetings,
I've been searching these forums for weeks for a similar issue, but must not be asking the right questions.
Here's the TLDR:
After upgrading my Teensy 3.2 to 3.6, I started having issues once I integrated into my full lighting system. If I power on the system with the RJ44 connectors un-plugged, allow the Teensy a moment to initialize, then plug them in, it works fine. Do I just need a killswitch for my Ethernet jacks, or is there a better way?
What I think the issue is:
Because the teensy & the lighting strips are all powered from the same 24v source (converted to 5v within inches of their load), when the 24v system powers on, it powers the Teensy on, which in turn tries to feed the LED strips before it's fully initialized.
Complete Source Code Pasted Below
Screenshot or the exact text of any error messages - N/A
Which PJRC product you're using - Teensy 3.6 + OctoWS2811 + WS2812b lighting strips + 24/5v buck converters
Part numbers of any other chips or modules + links to their info - N/A
Wiring details - https://drive.google.com/file/d/1PuWXwYMA3WnAVxKzg6wmdhE0Qqu270Pv/view?usp=sharing -- Google Docs/Draw IO schematic, refer to Tab -- Post-Soak additions
Software setup, Arduino vs C+makefile, running on Windows, Mac or Linux?Versions? Arduino running on Windows 7
What I've done to troubleshoot:
Cut the VIN-VUSB pads apart
Checked for shorts
Changed out every piece of hardware
Tried different test patterns
Tried a simple teensy blink test
Used a multimeter at every segment to verify power is adequate
Verified components using external power
Disconnected the in-line meters
Added switches to attempt to break the power in various places to circumvent the race condition
File I most frequently use to troubleshoot:
//PlazINT - Fast Plasma Generator using Integer Math Only
//Edmund "Skorn" Horn
//March 4,2013
//Version 1.0 adapted for OctoWS2811Lib (tested, working...)
#include <OctoWS2811.h>
//OctoWS2811 Defn. Stuff
#define COLS_LEDs 150 // all of the following params need to be adjusted for screen size
#define ROWS_LEDs 8 // LED_LAYOUT assumed 0 if ROWS_LEDs > 8
#define LEDS_PER_STRIP (COLS_LEDs * (ROWS_LEDs / 8))
DMAMEM int displayMemory[LEDS_PER_STRIP*6];
int drawingMemory[LEDS_PER_STRIP*6];
const int config = WS2811_GRB | WS2811_800kHz;
OctoWS2811 leds(LEDS_PER_STRIP, displayMemory, drawingMemory, config);
//Byte val 2PI Cosine Wave, offset by 1 PI
//supports fast trig calcs and smooth LED fading/pulsing.
uint8_t const cos_wave[256] PROGMEM =
{0,0,0,0,1,1,1,2,2,3,4,5,6,6,8,9,10,11,12,14,15,17,18,20,22,23,25,27,29,31,33,35,38,40,42,
45,47,49,52,54,57,60,62,65,68,71,73,76,79,82,85,88,91,94,97,100,103,106,109,113,116,119,
122,125,128,131,135,138,141,144,147,150,153,156,159,162,165,168,171,174,177,180,183,186,
189,191,194,197,199,202,204,207,209,212,214,216,218,221,223,225,227,229,231,232,234,236,
238,239,241,242,243,245,246,247,248,249,250,251,252,252,253,253,254,254,255,255,255,255,
255,255,255,255,254,254,253,253,252,252,251,250,249,248,247,246,245,243,242,241,239,238,
236,234,232,231,229,227,225,223,221,218,216,214,212,209,207,204,202,199,197,194,191,189,
186,183,180,177,174,171,168,165,162,159,156,153,150,147,144,141,138,135,131,128,125,122,
119,116,113,109,106,103,100,97,94,91,88,85,82,79,76,73,71,68,65,62,60,57,54,52,49,47,45,
42,40,38,35,33,31,29,27,25,23,22,20,18,17,15,14,12,11,10,9,8,6,6,5,4,3,2,2,1,1,1,0,0,0,0
};
//Gamma Correction Curve
uint8_t const exp_gamma[256] PROGMEM =
{0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,3,3,3,3,3,
4,4,4,4,4,5,5,5,5,5,6,6,6,7,7,7,7,8,8,8,9,9,9,10,10,10,11,11,12,12,12,13,13,14,14,14,15,15,
16,16,17,17,18,18,19,19,20,20,21,21,22,23,23,24,24,25,26,26,27,28,28,29,30,30,31,32,32,33,
34,35,35,36,37,38,39,39,40,41,42,43,44,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,
61,62,63,64,65,66,67,68,70,71,72,73,74,75,77,78,79,80,82,83,84,85,87,89,91,92,93,95,96,98,
99,100,101,102,105,106,108,109,111,112,114,115,117,118,120,121,123,125,126,128,130,131,133,
135,136,138,140,142,143,145,147,149,151,152,154,156,158,160,162,164,165,167,169,171,173,175,
177,179,181,183,185,187,190,192,194,196,198,200,202,204,207,209,211,213,216,218,220,222,225,
227,229,232,234,236,239,241,244,246,249,251,253,254,255
};
void setup()
{
delay(5085); // wait for 5 seconds
const int ledPin = 13;
digitalWrite(ledPin, HIGH); // set the LED on
delay(85); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(1085); // wait for a second
digitalWrite(ledPin, HIGH); // set the LED on
delay(300); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(500); // wait for a
digitalWrite(ledPin, HIGH); // set the LED on
delay(85); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(1085); // wait for a second
digitalWrite(ledPin, HIGH); // set the LED on
delay(300); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(500); // wait for a
pinMode(13, OUTPUT);
leds.begin();
leds.show();
}
void loop()
{
unsigned long frameCount=25500; // arbitrary seed to calculate the three time displacement variables t,t2,t3
while(1) {
frameCount++ ;
uint16_t t = fastCosineCalc((42 * frameCount)/100); //time displacement - fiddle with these til it looks good...
uint16_t t2 = fastCosineCalc((35 * frameCount)/100);
uint16_t t3 = fastCosineCalc((38 * frameCount)/100);
for (uint8_t y = 0; y < ROWS_LEDs; y++) {
int left2Right, pixelIndex;
if (((y % (ROWS_LEDs/8)) & 1) == 0) {
left2Right = 1;
pixelIndex = y * COLS_LEDs;
} else {
left2Right = -1;
pixelIndex = (y + 1) * COLS_LEDs - 1;
}
for (uint8_t x = 0; x < COLS_LEDs ; x++) {
//Calculate 3 seperate plasma waves, one for each color channel
uint8_t r = fastCosineCalc(((x << 3) + (t >> 1) + fastCosineCalc((t2 + (y << 3)))));
uint8_t g = fastCosineCalc(((y << 3) + t + fastCosineCalc(((t3 >> 2) + (x << 3)))));
uint8_t b = fastCosineCalc(((y << 3) + t2 + fastCosineCalc((t + x + (g >> 2)))));
//uncomment the following to enable gamma correction
//r=pgm_read_byte_near(exp_gamma+r);
//g=pgm_read_byte_near(exp_gamma+g);
//b=pgm_read_byte_near(exp_gamma+b);
leds.setPixel(pixelIndex, ((r << 16) | (g << 8) | b));
pixelIndex += left2Right;
}
}
digitalWrite(13, HIGH);
leds.show(); // not sure if this function is needed to update each frame
digitalWrite(13, LOW);
}
}
inline uint8_t fastCosineCalc( uint16_t preWrapVal)
{
uint8_t wrapVal = (preWrapVal % 255);
if (wrapVal<0) wrapVal=255+wrapVal;
return (pgm_read_byte_near(cos_wave+wrapVal));
}
I've been searching these forums for weeks for a similar issue, but must not be asking the right questions.
Here's the TLDR:
After upgrading my Teensy 3.2 to 3.6, I started having issues once I integrated into my full lighting system. If I power on the system with the RJ44 connectors un-plugged, allow the Teensy a moment to initialize, then plug them in, it works fine. Do I just need a killswitch for my Ethernet jacks, or is there a better way?
What I think the issue is:
Because the teensy & the lighting strips are all powered from the same 24v source (converted to 5v within inches of their load), when the 24v system powers on, it powers the Teensy on, which in turn tries to feed the LED strips before it's fully initialized.
Complete Source Code Pasted Below
Screenshot or the exact text of any error messages - N/A
Which PJRC product you're using - Teensy 3.6 + OctoWS2811 + WS2812b lighting strips + 24/5v buck converters
Part numbers of any other chips or modules + links to their info - N/A
Wiring details - https://drive.google.com/file/d/1PuWXwYMA3WnAVxKzg6wmdhE0Qqu270Pv/view?usp=sharing -- Google Docs/Draw IO schematic, refer to Tab -- Post-Soak additions
Software setup, Arduino vs C+makefile, running on Windows, Mac or Linux?Versions? Arduino running on Windows 7
What I've done to troubleshoot:
Cut the VIN-VUSB pads apart
Checked for shorts
Changed out every piece of hardware
Tried different test patterns
Tried a simple teensy blink test
Used a multimeter at every segment to verify power is adequate
Verified components using external power
Disconnected the in-line meters
Added switches to attempt to break the power in various places to circumvent the race condition
File I most frequently use to troubleshoot:
//PlazINT - Fast Plasma Generator using Integer Math Only
//Edmund "Skorn" Horn
//March 4,2013
//Version 1.0 adapted for OctoWS2811Lib (tested, working...)
#include <OctoWS2811.h>
//OctoWS2811 Defn. Stuff
#define COLS_LEDs 150 // all of the following params need to be adjusted for screen size
#define ROWS_LEDs 8 // LED_LAYOUT assumed 0 if ROWS_LEDs > 8
#define LEDS_PER_STRIP (COLS_LEDs * (ROWS_LEDs / 8))
DMAMEM int displayMemory[LEDS_PER_STRIP*6];
int drawingMemory[LEDS_PER_STRIP*6];
const int config = WS2811_GRB | WS2811_800kHz;
OctoWS2811 leds(LEDS_PER_STRIP, displayMemory, drawingMemory, config);
//Byte val 2PI Cosine Wave, offset by 1 PI
//supports fast trig calcs and smooth LED fading/pulsing.
uint8_t const cos_wave[256] PROGMEM =
{0,0,0,0,1,1,1,2,2,3,4,5,6,6,8,9,10,11,12,14,15,17,18,20,22,23,25,27,29,31,33,35,38,40,42,
45,47,49,52,54,57,60,62,65,68,71,73,76,79,82,85,88,91,94,97,100,103,106,109,113,116,119,
122,125,128,131,135,138,141,144,147,150,153,156,159,162,165,168,171,174,177,180,183,186,
189,191,194,197,199,202,204,207,209,212,214,216,218,221,223,225,227,229,231,232,234,236,
238,239,241,242,243,245,246,247,248,249,250,251,252,252,253,253,254,254,255,255,255,255,
255,255,255,255,254,254,253,253,252,252,251,250,249,248,247,246,245,243,242,241,239,238,
236,234,232,231,229,227,225,223,221,218,216,214,212,209,207,204,202,199,197,194,191,189,
186,183,180,177,174,171,168,165,162,159,156,153,150,147,144,141,138,135,131,128,125,122,
119,116,113,109,106,103,100,97,94,91,88,85,82,79,76,73,71,68,65,62,60,57,54,52,49,47,45,
42,40,38,35,33,31,29,27,25,23,22,20,18,17,15,14,12,11,10,9,8,6,6,5,4,3,2,2,1,1,1,0,0,0,0
};
//Gamma Correction Curve
uint8_t const exp_gamma[256] PROGMEM =
{0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,3,3,3,3,3,
4,4,4,4,4,5,5,5,5,5,6,6,6,7,7,7,7,8,8,8,9,9,9,10,10,10,11,11,12,12,12,13,13,14,14,14,15,15,
16,16,17,17,18,18,19,19,20,20,21,21,22,23,23,24,24,25,26,26,27,28,28,29,30,30,31,32,32,33,
34,35,35,36,37,38,39,39,40,41,42,43,44,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,
61,62,63,64,65,66,67,68,70,71,72,73,74,75,77,78,79,80,82,83,84,85,87,89,91,92,93,95,96,98,
99,100,101,102,105,106,108,109,111,112,114,115,117,118,120,121,123,125,126,128,130,131,133,
135,136,138,140,142,143,145,147,149,151,152,154,156,158,160,162,164,165,167,169,171,173,175,
177,179,181,183,185,187,190,192,194,196,198,200,202,204,207,209,211,213,216,218,220,222,225,
227,229,232,234,236,239,241,244,246,249,251,253,254,255
};
void setup()
{
delay(5085); // wait for 5 seconds
const int ledPin = 13;
digitalWrite(ledPin, HIGH); // set the LED on
delay(85); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(1085); // wait for a second
digitalWrite(ledPin, HIGH); // set the LED on
delay(300); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(500); // wait for a
digitalWrite(ledPin, HIGH); // set the LED on
delay(85); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(1085); // wait for a second
digitalWrite(ledPin, HIGH); // set the LED on
delay(300); // wait for a second
digitalWrite(ledPin, LOW); // set the LED off
delay(500); // wait for a
pinMode(13, OUTPUT);
leds.begin();
leds.show();
}
void loop()
{
unsigned long frameCount=25500; // arbitrary seed to calculate the three time displacement variables t,t2,t3
while(1) {
frameCount++ ;
uint16_t t = fastCosineCalc((42 * frameCount)/100); //time displacement - fiddle with these til it looks good...
uint16_t t2 = fastCosineCalc((35 * frameCount)/100);
uint16_t t3 = fastCosineCalc((38 * frameCount)/100);
for (uint8_t y = 0; y < ROWS_LEDs; y++) {
int left2Right, pixelIndex;
if (((y % (ROWS_LEDs/8)) & 1) == 0) {
left2Right = 1;
pixelIndex = y * COLS_LEDs;
} else {
left2Right = -1;
pixelIndex = (y + 1) * COLS_LEDs - 1;
}
for (uint8_t x = 0; x < COLS_LEDs ; x++) {
//Calculate 3 seperate plasma waves, one for each color channel
uint8_t r = fastCosineCalc(((x << 3) + (t >> 1) + fastCosineCalc((t2 + (y << 3)))));
uint8_t g = fastCosineCalc(((y << 3) + t + fastCosineCalc(((t3 >> 2) + (x << 3)))));
uint8_t b = fastCosineCalc(((y << 3) + t2 + fastCosineCalc((t + x + (g >> 2)))));
//uncomment the following to enable gamma correction
//r=pgm_read_byte_near(exp_gamma+r);
//g=pgm_read_byte_near(exp_gamma+g);
//b=pgm_read_byte_near(exp_gamma+b);
leds.setPixel(pixelIndex, ((r << 16) | (g << 8) | b));
pixelIndex += left2Right;
}
}
digitalWrite(13, HIGH);
leds.show(); // not sure if this function is needed to update each frame
digitalWrite(13, LOW);
}
}
inline uint8_t fastCosineCalc( uint16_t preWrapVal)
{
uint8_t wrapVal = (preWrapVal % 255);
if (wrapVal<0) wrapVal=255+wrapVal;
return (pgm_read_byte_near(cos_wave+wrapVal));
}