programming -- 2

I am looking for a programmer who can help me to send ASCII values to RS232C port of a PLC from USART of STM32F4O7VGT6 Discovery board using USART1 of the microcontroller. The code must be in header file written in C language and my existing project doesn't use HAL libraries instead the Usart library that i have in my file system is #include "stm32f4xx_usart.h" so the code is preferred to be written around the same, and if Hal Library usage is necessary then how to include it in my code must be guided for so that I could easily include in my Attolic True Studio Project. The entire project is being written in C programming language. Just need to send Characters, strings , integers and floating point numbers from Microcontroller to PLC. Will be using a TTL to RS232 level converter in between. To be transparent to you have initialized the USART myself but the Data is being received on HyperTerminal exactly the way I want but the same is not being able to be received on PLC and I don't know why.