This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F28379D: SCI communication in 9 bit mode

Part Number: TMS320F28379D

Hello,

      I need to send 9 bits in a single word through SCI. Because my slave device only supports 9bit mode. But i look in the c2000 manual, TMS320F28379D can send maximum of 8 bits in a single word. so i need clarification in this. Is there any ways to send 9 Bits in SCI?

Thanks,

Sathish 

  • Hi Sathish,

    This is not inherently supported. But depending on your application, one idea is you could try to configure SCI to have 2 stop bits - if the slave device is expecting 9 bits still and you are simply trying to send 9 bits, this might work. But if you want to use the full range of 9 bits to send data, this idea wouldn't be able to support that. 

    So overall the SCI module does not support a 9-bit mode, however, the UART module does support 9-bit mode. You can refer to the C2000 peripheral guide for which devices have the UART module. Below is a snippet from the last F28P65x TRM for example Slight smile

    Best Regards,

    Allison