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How can I resolve UART transmission errors on my STM32F407VGT6 MCU during rapid string transmission?

Posted by Sterling
11:55 am
21/11/2024

Good day everyone @Middleware & OS , I have an objective to transmit a string (“test123”) 10 times as fast as possible through UART in interrupt mode utilizing an STM32F407VGT6 MCU on STM32CubeIDE, but I am facing problems.

Despite the initial successful transmission, the code eventually encounters an unacceptable scenario where it falls into the `Error_Handler()`. Though implementing delays between each transmission guarantees that all strings are transferred successfully, I desire to comprehend why this accomplishment cannot be attained without incorporating any delay.

What might be causing the issue with transmitting the strings without delays, and how can I fix it?

Here’s an attachment of my code.