When using STVD software to develop stm8sMCU, open the STVD software and the system automatically generates an interrupt vector file vector.c. The following code can be seen in it
Refer to the official document PM0044 program manual of stm8s mcu, we can know that mcu has 32 4-byte interrupt vector entries, where the opcode is 0x82, followed by a 24-bit address. The code in the figure above is the entry address of the interrupt vector and NonHandledInterrupt is exactly @far type (@far represents a 3-byte pointer).
I used the TIM4 overflow interrupt in the program. At first, I just replaced the NonHandledInterrupt in the /*irq23*/ line with the TIM4 interrupt function, and then an error: invalid pointer ... appeared. After checking, I found that the vector table could not recognize the TIM4 interrupt function name because the TIM4 interrupt function name was not declared in advance.
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