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more flexible EVSE state machine to catch responses from PEV

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uhi22 2022-11-09 19:11:18 +01:00
parent 2e812c2f57
commit 1cb47d8fe6
1 changed files with 29 additions and 38 deletions
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67
fsmEvse.py
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@ -13,7 +13,7 @@ stateWaitForSupportedApplicationProtocolRequest = 0
stateWaitForSessionSetupRequest = 1
stateWaitForServiceDiscoveryRequest = 2
stateWaitForServicePaymentSelectionRequest = 3
stateWaitForAuthorizationRequest = 4
stateWaitForFlexibleRequest = 4
stateWaitForChargeParameterDiscoveryRequest = 5
stateWaitForCableCheckRequest = 6
stateWaitForPreChargeRequest = 7
@ -90,62 +90,53 @@ class fsmEvse():
msg = addV2GTPHeader(exiEncode("EDc")) # EDc for Encode, Din, ServicePaymentSelectionResponse
print("responding " + prettyHexMessage(msg))
self.Tcp.transmit(msg)
self.enterState(stateWaitForChargeParameterDiscoveryRequest)
self.enterState(stateWaitForFlexibleRequest) # todo: not clear, what is specified. The Ioniq sends PowerDeliveryReq as next.
if (self.isTooLong()):
self.enterState(0)
def stateFunctionWaitForAuthorizationRequest(self): # not specified in the DIN
def stateFunctionWaitForFlexibleRequest(self):
if (len(self.rxData)>0):
self.rxData = []
self.enterState(5)
if (self.isTooLong()):
self.enterState(0)
def stateFunctionWaitForChargeParameterDiscoveryRequest(self):
if (len(self.rxData)>0):
print("In state WaitForChargeParameterDiscoveryRequest, received " + prettyHexMessage(self.rxData))
print("In state WaitForFlexibleRequest, received " + prettyHexMessage(self.rxData))
exidata = removeV2GTPHeader(self.rxData)
self.rxData = []
strConverterResult = exiDecode(exidata, "DD")
print(strConverterResult)
if (strConverterResult.find("PowerDeliveryReq")>0):
# todo: check the request content, and fill response parameters
msg = addV2GTPHeader(exiEncode("EDh")) # EDh for Encode, Din, PowerDeliveryResponse
print("responding " + prettyHexMessage(msg))
self.Tcp.transmit(msg)
self.enterState(stateWaitForFlexibleRequest) # todo: not clear, what is specified in DIN
if (strConverterResult.find("ChargeParameterDiscoveryReq")>0):
# todo: check the request content, and fill response parameters
msg = addV2GTPHeader(exiEncode("EDe")) # EDe for Encode, Din, ChargeParameterDiscoveryResponse
print("responding " + prettyHexMessage(msg))
self.Tcp.transmit(msg)
self.enterState(stateWaitForCableCheckRequest)
if (self.isTooLong()):
self.enterState(0)
def stateFunctionWaitForCableCheckRequest(self):
if (len(self.rxData)>0):
print("In state WaitForCableCheckRequest, received " + prettyHexMessage(self.rxData))
exidata = removeV2GTPHeader(self.rxData)
self.rxData = []
strConverterResult = exiDecode(exidata, "DD")
print(strConverterResult)
self.Tcp.transmit(msg)
self.enterState(stateWaitForFlexibleRequest) # todo: not clear, what is specified in DIN
if (strConverterResult.find("CableCheckReq")>0):
# todo: check the request content, and fill response parameters
msg = addV2GTPHeader(exiEncode("EDf")) # EDf for Encode, Din, CableCheckResponse
print("responding " + prettyHexMessage(msg))
self.Tcp.transmit(msg)
self.enterState(stateWaitForPreChargeRequest)
self.Tcp.transmit(msg)
self.enterState(stateWaitForFlexibleRequest) # todo: not clear, what is specified in DIN
if (strConverterResult.find("PreChargeReq")>0):
# todo: check the request content, and fill response parameters
msg = addV2GTPHeader(exiEncode("EDg")) # EDg for Encode, Din, PreChargeResponse
print("responding " + prettyHexMessage(msg))
self.Tcp.transmit(msg)
self.enterState(stateWaitForFlexibleRequest) # todo: not clear, what is specified in DIN
if (self.isTooLong()):
self.enterState(0)
def stateFunctionWaitForChargeParameterDiscoveryRequest(self):
if (self.isTooLong()):
self.enterState(0)
def stateFunctionWaitForCableCheckRequest(self):
if (self.isTooLong()):
self.enterState(0)
def stateFunctionWaitForPreChargeRequest(self):
if (len(self.rxData)>0):
print("In state WaitForPreChargeRequest, received " + prettyHexMessage(self.rxData))
exidata = removeV2GTPHeader(self.rxData)
self.rxData = []
strConverterResult = exiDecode(exidata, "DD")
print(strConverterResult)
if (strConverterResult.find("PreChargeReq")>0):
# todo: check the request content, and fill response parameters
msg = addV2GTPHeader(exiEncode("EDg")) # EDf for Encode, Din, PreChargeResponse
print("responding " + prettyHexMessage(msg))
self.Tcp.transmit(msg)
self.enterState(stateWaitForPowerDeliveryRequest)
if (self.isTooLong()):
self.enterState(0)
@ -164,7 +155,7 @@ class fsmEvse():
stateWaitForSessionSetupRequest: stateFunctionWaitForSessionSetupRequest,
stateWaitForServiceDiscoveryRequest: stateFunctionWaitForServiceDiscoveryRequest,
stateWaitForServicePaymentSelectionRequest: stateFunctionWaitForServicePaymentSelectionRequest,
# stateWaitForAuthorizationRequest: stateFunctionWaitForAuthorizationRequest, not in DIN
stateWaitForFlexibleRequest: stateFunctionWaitForFlexibleRequest,
stateWaitForChargeParameterDiscoveryRequest: stateFunctionWaitForChargeParameterDiscoveryRequest,
stateWaitForCableCheckRequest: stateFunctionWaitForCableCheckRequest,
stateWaitForPreChargeRequest: stateFunctionWaitForPreChargeRequest,