tza/pyren
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Double check negative response

Browse Source
This commit is contained in:
Marianpol 2021-05-03 13:26:26 +02:00
parent 5ca41ea698
commit a987db98c2
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
pyren/mod_elm.py
View File

@ -536,6 +536,7 @@ class ELM:
currentScreenDataIds = [] #dataids displayed on current screen
rsp_cache = OrderedDict() # cashes responses for current screen
l1_cache = {} # save number of frames in responces
tmpNotSupportedCommands = {} #temporary list for requests that were positive and became negative for no reason
notSupportedCommands = {} # save them to not slow down polling
ecudump = {} # for demo only. contains responses for all 21xx and 22xxxx requests
@ -1112,8 +1113,12 @@ class ELM:
nr = line[6:8]
if line.startswith ("NR"):
nr = line.split (':')[1]
if nr in ['12']: # mark this request as unsupported
self.notSupportedCommands[command] = cmdrsp
if nr in ['12']: # mark this request as unsupported only if previous response was also negative
if command in self.tmpNotSupportedCommands.keys():
del self.tmpNotSupportedCommands[command]
self.notSupportedCommands[command] = cmdrsp
else:
self.tmpNotSupportedCommands[command] = cmdrsp
if nr in ['21', '23']: # it is look like the ECU asked us to wait a bit
time.sleep (0.5)
no_negative_wait_response = False
@ -1898,6 +1903,7 @@ class ELM:
def set_can_addr(self, addr, ecu):
self.notSupportedCommands = {}
self.tmpNotSupportedCommands = {}
if self.currentprotocol == "can" and self.currentaddress == addr:
return
@ -1987,6 +1993,7 @@ class ELM:
def set_iso_addr(self, addr, ecu):
self.notSupportedCommands = {}
self.tmpNotSupportedCommands = {}
if self.currentprotocol == "iso" and self.currentaddress == addr and self.currentsubprotocol == ecu['protocol']:
return