String Interrupt send application Part 2 [USART of STM32]
![](https://en.depfields.com/wp-content/uploads/2020/06/web-4841856_640.jpg)
This is a buffered application that sends several types of strings in USART with the STM32 MCU without interfering with each other. The buffer is provided to perform multiple string transmissions without interference.
![](https://en.depfields.com/wp-content/uploads/2020/05/instructor.jpg)
Although one type of character could be sent by using the pointer to send a string, multiple strings cannot be sent due to interference.
![](https://en.depfields.com/wp-content/uploads/2020/05/instructor.jpg)
Therefore, each string can be sent without interference by storing each string to be sent in a buffer while sending.
![](https://en.depfields.com/wp-content/uploads/2020/05/instructor.jpg)
By making the pointers arrays, each pointer corresponding to each string is specified in the array. In the reference program, the number of arrays is set to 8, so up to 8 different strings are supported.