SDO datalength should be the bytes that does NOT contain data.

FabianPetersen · Oct 5, 2021 · c722814 · c722814
1 parent 8c9d130
commit c722814
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/sdo/download.go b/sdo/download.go
@@ -52,7 +52,7 @@ func (download Download) Do(bus *can.Bus) error {
 
 	// If valid "n" indicates the number of bytes in d that do not contain data. Hence 4 -
 	bytes := []byte{
-		byte(ClientIntiateDownload | e | s | ((4 - (int(n) << 2)) & TransferMaskSize)),
+		byte(ClientIntiateDownload | e | s | (((4 - int(n)) << 2) & TransferMaskSize)),
 		download.ObjectIndex.Index.B0, download.ObjectIndex.Index.B1,
 		download.ObjectIndex.SubIndex,
 	}