Jan/WLED_MM_Infinity
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

chanSize expansion must account for start byte

Browse Source
This commit is contained in:
Frank
2026-01-25 17:02:06 +01:00
parent f0753d6cf6
commit 8faa88e05b
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
wled00/src/dependencies/dmx/SparkFunDMX.cpp
View File

@@ -132,8 +132,8 @@ uint8_t SparkFunDMX::read(int Channel) {
// Function to send DMX data
void SparkFunDMX::write(int Channel, uint8_t value) {
if (Channel < 0) Channel = 0;
if (Channel > chanSize) chanSize = Channel;
if (Channel > dmxMaxChannel) Channel = dmxMaxChannel; // WLEDMM prevent array out-of-bounds access
if (Channel+1 > chanSize) chanSize = min(dmxMaxChannel +1, Channel+1); // WLEDMM "+1" as we need to account for start byte
if (Channel > dmxMaxChannel) Channel = dmxMaxChannel; // WLEDMM prevent array out-of-bounds access
dmxData[0] = 0;
dmxData[Channel] = value; //add one to account for start byte
}