I am trying to perform a communication between two stm32f103c8t6 through network can.However my code gets stuck in loop as shown in the image below. The __HAL_CAN_MSG_PENDING function does not exit the value 0.I'm using Polling mode operation.

Hello,I am trying to use the HAL library to send data from a variable through CAN Network with interrupts. However my code is not sending data. Observing on the oscilloscope, the Tx Can pin is always on a high logic level. For this application I am u...