Use Python methods for ChkSum - speed bump.

2018-10-16 23:45:22 +02:00
parent 0c9528fd4f
commit c0ec316023
1 changed files with 1 additions and 2 deletions
--- a/grmn/chksum.py
+++ b/grmn/chksum.py
@ -7,8 +7,7 @@ class ChkSum:
        self.last_byte = 0xff

    def add(self, data):
-        for c in data:
-            self.chksum += c
+        self.chksum += sum(bytearray(data))
        self.last_byte = data[-1]
        self.chksum &= 0xff