pierremolinaro
commented
5 years ago Hello,
So I think when begin is called, this driver allocates the recieve buffer to a new space of RAM, not using the old space, and this filled the RAM up.
You are right, when ACAN2515::begin is called, the receive and transmit buffers are allocated, and current release does not deallocate them before allocation. On the first ACAN2515::begin call it is ok because the buffers are not allocated.
A workaround is to insert the deallocation instruction in the ACANBuffer16.h file : public: bool initWithSize (const uint16_t inSize) { delete [] mBuffer ; // Line to insert mBuffer = new CANMessage [inSize] ;
Il will add this line in the future 1.1.1 release.
Best regards,
Pierre
Le 16 janv. 2019 à 10:58, qwec01 notifications@github.com a écrit :
In some caces, I have to change the filters and masks of one of my MCP2515s (yes I have 2, and they have to work together), after that, I have to recall the "begin" method. In the LoopBackDemo, when I tried to call begin again with "settings.mReceiveBufferSize = 31;" (Just for testing), the Arduino hangs. Then, I tried setting "settings.mReceiveBufferSize = 8;", and discovered that I can call begin twice, it hangs at the 3rd call. So I think when begin is called, this driver allocates the recieve buffer to a new space of RAM, not using the old space, and this filled the RAM up. Maybe I'm wrong, I'm not familiar with C++. Any solutions? Or I just missed something?
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In some caces, I have to change the filters and masks of one of my MCP2515s (yes I have 2, and they have to work together), after that, I have to recall the "begin" method. In the LoopBackDemo, when I tried to call begin again with "settings.mReceiveBufferSize = 31;" (Just for testing), the Arduino hangs. Then, I tried setting "settings.mReceiveBufferSize = 8;", and discovered that I can call begin twice, it hangs at the 3rd call. So I think when begin is called, this driver allocates the recieve buffer to a new space of RAM, not using the old space, and this filled the RAM up. Maybe I'm wrong, I'm not familiar with C++. Any solutions? Or I just missed something?