It seems no one else having a similar problem in the forum, but maybe someone can help nevertheless.
-WS2812b Leds controlled via SPI
-Raspberry Pi 4
-LibreElec
-HyerionNG 2.0.0-alpha.9
added:
core_freq=500
core_freq_min=500
spidev.bufsiz=32768
{
"backgroundEffect": {
"color": [
255,
0,
0
],
"effect": "Warm mood blobs",
"enable": false,
"type": "effect"
},
"blackborderdetector": {
"blurRemoveCnt": 1,
"borderFrameCnt": 50,
"enable": true,
"maxInconsistentCnt": 10,
"mode": "default",
"threshold": 5,
"unknownFrameCnt": 600
},
"boblightServer": {
"enable": false,
"port": 19333,
"priority": 128
},
"color": {
"channelAdjustment": [
{
"backlightColored": false,
"backlightThreshold": 0,
"blue": [
0,
0,
255
],
"brightness": 100,
"brightnessCompensation": 100,
"cyan": [
0,
255,
255
],
"gammaBlue": 1.5,
"gammaGreen": 1.5,
"gammaRed": 1.5,
"green": [
0,
255,
0
],
"id": "default",
"leds": "*",
"magenta": [
255,
0,
255
],
"red": [
255,
0,
0
],
"white": [
255,
255,
255
],
"yellow": [
255,
255,
0
]
}
],
"imageToLedMappingType": "multicolor_mean"
},
"device": {
"colorOrder": "grb",
"hardwareLedCount": 2,
"invert": false,
"latchTime": 0,
"output": "/dev/spidev0.0",
"rate": 3000000,
"rewriteTime": 1,
"type": "ws2812spi"
},
"effects": {
"disable": [],
"paths": [
""
]
},
"flatbufServer": {
"enable": true,
"port": 19400,
"timeout": 5
},
"foregroundEffect": {
"color": [
0,
0,
255
],
"duration_ms": 3000,
"effect": "Rainbow swirl fast",
"enable": true,
"type": "color"
},
"forwarder": {
"enable": false,
"flat": [
"127.0.0.1:19401"
],
"json": [
"127.0.0.1:19446"
]
},
"framegrabber": {
"cropBottom": 0,
"cropLeft": 0,
"cropRight": 0,
"cropTop": 0,
"display": 0,
"frequency_Hz": 10,
"height": 10,
"pixelDecimation": 8,
"type": "dispmanx",
"width": 44
},
"general": {
"name": "MarxonHyperion",
"showOptHelp": true,
"watchedVersionBranch": "Stable"
},
"grabberV4L2": {
"blueSignalThreshold": 5,
"cecDetection": false,
"cropBottom": 0,
"cropLeft": 0,
"cropRight": 0,
"cropTop": 0,
"device": "auto",
"fps": 15,
"greenSignalThreshold": 5,
"height": 0,
"input": 0,
"redSignalThreshold": 5,
"sDHOffsetMax": 0.75,
"sDHOffsetMin": 0.25,
"sDVOffsetMax": 0.75,
"sDVOffsetMin": 0.25,
"signalDetection": false,
"sizeDecimation": 8,
"standard": "NO_CHANGE",
"width": 0
},
"instCapture": {
"systemEnable": false,
"systemPriority": 250,
"v4lEnable": false,
"v4lPriority": 240
},
"jsonServer": {
"port": 19444
},
"ledConfig": {
"classic": {
"bottom": 0,
"edgegap": 8,
"glength": 0,
"gpos": 0,
"hdepth": 5,
"left": 0,
"overlap": 0,
"pblh": 0,
"pblv": 100,
"pbrh": 100,
"pbrv": 100,
"position": 0,
"ptlh": 0,
"ptlv": 0,
"ptrh": 100,
"ptrv": 0,
"reverse": false,
"right": 0,
"top": 2,
"vdepth": 5
},
"matrix": {
"cabling": "snake",
"ledshoriz": 1,
"ledsvert": 1,
"start": "top-left"
}
},
"leds": [
{
"hmax": 0.5,
"hmin": 0.0225,
"vmax": 0.05,
"vmin": 0
},
{
"hmax": 0.9775,
"hmin": 0.5,
"vmax": 0.05,
"vmin": 0
}
],
"logger": {
"level": "debug"
},
"network": {
"apiAuth": true,
"internetAccessAPI": false,
"ipWhitelist": [],
"localAdminAuth": true,
"localApiAuth": true,
"restirctedInternetAccessAPI": false
},
"protoServer": {
"enable": true,
"port": 19445,
"timeout": 5
},
"smoothing": {
"continuousOutput": true,
"decay": 1,
"dithering": false,
"enable": true,
"interpolationRate": 25,
"outputRate": 25,
"time_ms": 200,
"type": "linear",
"updateDelay": 0,
"updateFrequency": 25
},
"webConfig": {
"crtPath": "",
"document_root": "",
"keyPassPhrase": "",
"keyPath": "",
"port": 8090,
"sslPort": 8092
}
}
Everything works so far but there is some kind of repeating external signal superimpose (i hope this is the correct english word)
the communication which causes flickerig and i dont know its source.
It also occurs when no effect is running but it disappears when selecting a none SPI-type led in settings.
I checked the signal with my oscilloscope @ 1ms, 50us, 10us, 1us
Where could this signal come from?
Best regards
Marxon