从Python调用CAPL函数 [英] Call CAPL function from Python
问题描述
我正在使用CANalyzer,但找不到包含参数的CAPL函数的调用方法。如果我将 num
放入 functions_call.Call(num)
,则无效。
I'm working on CANalyzer and I can't find how to call a CAPL function wich contains a parameter. If I put num
in functions_call.Call(num)
it doesn't work.
def call(num):
print 'calling from CAN'
x=int(num)
functions_call.Call()
return 1
推荐答案
我遇到了不久前出现了类似的问题,有些Google搜索将我引到了Vector的以下应用笔记:
I ran into a similar problem a while back and some Googling led me to the following application note by Vector:
...结帐部分 2.7调用CAPL函数。
...checkout section "2.7 Calling CAPL Functions".
总而言之,请确保将CAPL函数的参数声明为 long,例如:以下似乎对我有用:
To sum it up, make sure to declare your CAPL function's parameters as "long", .e.g: the following seemed to work for me:
void function1(long l)
{
write("function1() called with %d!", l);
}
为了完整起见,这就是我的python代码(例如
For the sake of completion, this is how my python code (for the example above) looks like:
from win32com import client
import pythoncom
import time
function1 = None
canoe_app = None
is_running = False
class EventHandler:
def OnInit(self):
global canoe_app
global function1
function1 = canoe_app.CAPL.GetFunction('function1')
def OnStart(self):
global is_running
is_running = True
canoe_app = client.Dispatch('CANoe.Application')
measurement = canoe_app.Measurement
measurement_events = client.WithEvents(measurement, EventHandler)
measurement.Start()
# The following loop takes care of any pending events and, once, the Measurement
# starts, it will call the CAPL function "function1" 10 times and then exit!
count = 0
while count < 10:
if (is_running):
function1.Call(count)
count += 1
pythoncom.PumpWaitingMessages()
time.sleep(1)
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