uart data mismatch

[TejasK]

I am using stm32f407 and stm32wb series for sending the data usimg uart.
first i send th data using the stm32wb uart to the stm32f407 uart the data is correctly sent.

After receiving the data i will return the data back to the stm32wb from the stm32f407 but this time the data is corrupted.

I am using the hal_uart_receiveto_idle and hal_uart_transmit_it to send and receive the data. 

I will share the code please review and tell me if i need to make any changes.

[Saket_Om]

Hello @TejasK 

Did you connect the GND between the two board?

[TejasK]

Yes @Saket_Om  i have checked the connections one more time gnd is connected between the 2 boards. then what may be the other issue.

[Andrew Neil]

You haven't told us what board(s) you are using.

Please see: How to write your question to maximize your chances to find a solution

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@TejasK wrote:

After receiving the data i will return the data back to the stm32wb from the stm32f407 but this time the data is corrupted.

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How, exactly, is it "corrupted" ?

Have you used an oscilloscope and/or logic analyser to see what's happening on the wires?

Have you tested & verified the stm32wb and stm32f407 separately?

Tips on debugging serial comms.

[TDK]

> HAL_UART_MspDeInit(&huart1);

> HAL_UART_MspInit(&huart1);

Don't call these while a transfer is in progress.

[TejasK]

I have removed these in the code.

[Andrew Neil]

And what was the result?

You still haven't answered:

1. what board(s) are you using ?
2. How, exactly, is it "corrupted" ?
3. Have you used an oscilloscope and/or logic analyser to see what's happening on the wires?
4. Have you tested & verified the stm32wb and stm32f407 separately?

Please see: How to write your question to maximize your chances to find a solution - the better the information you supply, the more likely you are to get a good & quick solution

[TejasK]

1. I am using the STM32WB55REV6 and STM32F207VCT6.

2. The values received from the gateway side is corrupted.

3. I have seen the values on the watch window.

4. Yes i have tested and verified the boards separately.
i am sharing the projects so rectify me if there any error.

[Andrew Neil]

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@TejasK wrote:

2. The values received from the gateway side is corrupted.

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That doesn't answer the question, "How, exactly, is it 'corrupted'?"

Again, Have you used an oscilloscope and/or logic analyser to see what's happening on the wires?

[TejasK]

I have not tested using the oscilloscope or logic analyser. what i noticed is gateway is sending the data correctly but the server is not receiving properly.i will give u the screenshot of the buffer from the gateway and server.