Fix Offset/Length swap

mungewell · Dec 6, 2020 · 02010da · 02010da
1 parent 9e75c69
commit 02010da
Showing 1 changed file with 7 additions and 7 deletions.
diff --git a/circuit_samples.py b/circuit_samples.py
@@ -29,10 +29,10 @@
 #--------------------------------------------------
 class circuit_samples(object):
  circuitHeader = (0x00, 0x20, 0x29, 0x00)
- maxLength = 0x0023B000
+ maxLength = 0x0057F000
 
- length = 0x0023B000
- offset = 0x0057F000
+ offset = 0x0023B000
+ length = 0
  unpackedData = None
  checksum = 0
 
@@ -105,8 +105,8 @@ def readSysEx(self, filename):
  cmd = msg.data[4]
  if header == self.circuitHeader:
  if cmd == 0x77:
- self.length = self.unpackNyble(msg.data[5:13])
- self.offset = self.unpackNyble(msg.data[13:21])
+ self.offset = self.unpackNyble(msg.data[5:13])
+ self.length = self.unpackNyble(msg.data[13:21])
  if cmd == 0x79:
  self.unpackedData += self.unpack(bytes(msg.data[5:]))
  if cmd == 0x7a:
@@ -123,8 +123,8 @@ def writeSysEx(self, filename, unpackedData):
  self.checksum = crc32(unpackedData)
 
  data = bytes(self.circuitHeader) + b"\x77" + \
- self.packNyble(self.length) + \
- self.packNyble(self.offset)
+ self.packNyble(self.offset) + \
+ self.packNyble(self.length)
  messages.append(mido.Message('sysex', data=data))
 
  while unpackedData: