topic Incorporating half-duplex (echo suppression) support in blhost in MCU Bootloader https://community.nxp.com/t5/MCU-Bootloader/Incorporating-half-duplex-echo-suppression-support-in-blhost/m-p/745492#M699 <HTML><HEAD></HEAD><BODY><P>In our application, we need blhost&nbsp;to&nbsp;do firmware updates on&nbsp;a KL27Z via a half-duplex serial line (RS-485, a common industrial standard).&nbsp; To make blhost work on a half-duplex line, we've&nbsp;extended blhost to "suppress echoes", or more accurately, blhost ignores a received packet if it's identical to the packet just transmitted.&nbsp; This feature is enabled via a -e/--echosuppress flag on the command line.</P><P></P><P>So that all works and has proven to be robust.</P><P></P><P>Our&nbsp;question: since&nbsp;there are&nbsp;certainly other clients working with RS-485 and half-duplex serial lines, is there any interest in&nbsp;back-porting echo suppression into the main branch of blhost?&nbsp; And if so, what's the procedure for doing so?&nbsp;&nbsp;</P></BODY></HTML> Thu, 02 Nov 2017 15:47:39 GMT robertpoor 2017-11-02T15:47:39Z Incorporating half-duplex (echo suppression) support in blhost https://community.nxp.com/t5/MCU-Bootloader/Incorporating-half-duplex-echo-suppression-support-in-blhost/m-p/745492#M699 <HTML><HEAD></HEAD><BODY><P>In our application, we need blhost&nbsp;to&nbsp;do firmware updates on&nbsp;a KL27Z via a half-duplex serial line (RS-485, a common industrial standard).&nbsp; To make blhost work on a half-duplex line, we've&nbsp;extended blhost to "suppress echoes", or more accurately, blhost ignores a received packet if it's identical to the packet just transmitted.&nbsp; This feature is enabled via a -e/--echosuppress flag on the command line.</P><P></P><P>So that all works and has proven to be robust.</P><P></P><P>Our&nbsp;question: since&nbsp;there are&nbsp;certainly other clients working with RS-485 and half-duplex serial lines, is there any interest in&nbsp;back-porting echo suppression into the main branch of blhost?&nbsp; And if so, what's the procedure for doing so?&nbsp;&nbsp;</P></BODY></HTML> Thu, 02 Nov 2017 15:47:39 GMT https://community.nxp.com/t5/MCU-Bootloader/Incorporating-half-duplex-echo-suppression-support-in-blhost/m-p/745492#M699 robertpoor 2017-11-02T15:47:39Z