Skip to main content
Renesas India - Knowledgebase

Communication Using Multiple Channels for SCI FIT

Last Updated:07/04/2018


For SCI module Firmware Integration Technology (FIT), when using multiple channels, the channels set after the first one do not start communication. What could be the reasons and how to fix it?


Check if the SCI FI API return value is an error. 
When SCI_ERR_QUEUE_UNAVAILABLE is returned as a return value to the  R_SCI_Open function, the number of buffers saved in the BYTEQ module are not enough.
Change the BYTEQ_CFG_MAX_CTRL_BLK setting value of the configuration header file in the ByteQ module.
Suitable Products
RX Family
  • Was this article helpful?