Problems with the "build_opt.h" setting

[CJT1111]

I saw the wiki's Core Callback about the API, which required me to create a build opt in the same folder as the ino file. I followed h's file. As the picture shows:


But I have a problem when I call the HAL library to interrupt the serial module：
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size)
Wiki tells me to write:
void registerCoreCallback(void (*func)(void))
How do I write the function "HAL_UART_Receive_IT" in the HAL module as "void registerCoreCallback(void (*func)(void)") as required in the Wikipedia

[CJT1111]

I tried to modify the ino file
`UART_HandleTypeDef huart1;
uint8_t Message[1];

void registerCoreCallback(void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart));

void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) {
if (huart == &huart1)
{
HAL_UART_Transmit_IT(&huart1, Message, 1);
HAL_UART_Receive_IT(&huart1, Message, 1);
}
}
void setup() {
__HAL_RCC_GPIOA_CLK_ENABLE();
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if (HAL_UART_Init(&huart1) != HAL_OK) {
}
HAL_UART_Receive_IT(&huart1, Message, 1);
}

void loop() {
}

Then my build_opt.h file looks like this:
-DHAL_UART_MODULE_ENABLED
-DCORE_CALLBACK
`
But he reported the following malfunction

How can I fix it？

[fpistm]

You can't redefine those handler. Core callback is for custom cb not the one for HAL.

[CJT1111]

So how do I call something like HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *pData, uint16_t Size), In response to a serial port interruption?

[CJT1111]

Because I want to use the DMA response interrupt of the serial port, I hope to simply use the configuration of STM32CubeMX to form the configuration code, and then put it in ArduinoIDE. When the serial port needs high-speed serial transmission, I use the syntax of CubeIDE to call the DMA module. When high-speed serial transmission is not required, the original Arduino API is used. In this case, I just use the serial port interrupt as an experiment: it is to use the Cubeide-like syntax in ArduinoIDE environment to call the serial port callback function.
In addition, I changed the build_opt.h to the following：

But he still reports the following faults：

[fpistm]

The error is clear. Multiple definition.
Just to be clear core callback has no ling with hal register callback feature.

[CJT1111]

I see, but since ArduinoIDE automatically calls the STM32Hal definitions, how do I make the "HAL_UART_Receive_IT" function only be called from my code and not from Arduino?

[fpistm]

https://github.com/orgs/stm32duino/discussions/2297#discussioncomment-8703647

[CJT1111]

I changed the "build_opt.h" file to the following according to your description:

And change the program to the following:
`UART_HandleTypeDef huart1;
uint8_t Message[1];

void setup() {

__HAL_RCC_GPIOA_CLK_ENABLE();
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
HAL_UART_Init(&huart1);

// HAL_UART_Receive_IT(&huart1, Message, 1);
}

void loop() {
uint8_t Message_A[] = "Hello CubeIDE\n";
HAL_UART_Transmit(&huart1, (uint8_t *)Message_A, 14, 100);

uint8_t Message_B[] = "Hello CubeIIT\n";
HAL_UART_Transmit_IT(&huart1, (uint8_t *)Message_B, 14);

}

// void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) {
// if (huart == &huart1) {
// HAL_UART_Transmit_IT(&huart1, (uint8_t *)Message, 1);
// HAL_UART_Receive_IT(&huart1, Message, 1);
// }
// }But the program is no longer working, but if you change the program to:UART_HandleTypeDef huart1;
uint8_t Message[1];

void setup() {

__HAL_RCC_GPIOA_CLK_ENABLE();
huart1.Instance = USART1;
huart1.Init.BaudRate = 115200;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
HAL_UART_Init(&huart1);

// HAL_UART_Receive_IT(&huart1, Message, 1);
}

void loop() {
uint8_t Message_A[] = "Hello CubeIDE\n";
HAL_UART_Transmit(&huart1, (uint8_t *)Message_A, 14, 100);

// uint8_t Message_B[] = "Hello CubeIIT\n";
// HAL_UART_Transmit_IT(&huart1, (uint8_t *)Message_B, 14);

}

// void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) {
// if (huart == &huart1) {
// HAL_UART_Transmit_IT(&huart1, (uint8_t *)Message, 1);
// HAL_UART_Receive_IT(&huart1, Message, 1);
// }
// }`
The program output: Hello CubeIDE,This indicates that HAL_UART_Transmit_IT still cannot be called. Why is that?