topic S32 Micrium uCOSIII with UART DMA on MPC5744P in S32 Design Studio https://community.nxp.com/t5/S32-Design-Studio/S32-Micrium-uCOSIII-with-UART-DMA-on-MPC5744P/m-p/610094#M691 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>can anyone help me with UART - DMA Tx on Freescale MPC5744P. Im using Micrium uCOSIII Operating system, and DMA_Tx_Init is in one of the tasks (before while loop).</P><P>When i'm using DMA for UART Tx without OS it works great, but when uCOS is involved, DMA isn't triggering.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>I suppose there are some flaws in my code involving interrupts, but i can't find any bugs.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Are there any known issues with uCOSIII involving DMA and/or interrupts?</P><P>Also, i'm not sure, if there are any special interrupt or int_vector i should enable or set?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thank you.</P></BODY></HTML> Wed, 14 Dec 2016 10:53:53 GMT embedded_eng 2016-12-14T10:53:53Z S32 Micrium uCOSIII with UART DMA on MPC5744P https://community.nxp.com/t5/S32-Design-Studio/S32-Micrium-uCOSIII-with-UART-DMA-on-MPC5744P/m-p/610094#M691 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>can anyone help me with UART - DMA Tx on Freescale MPC5744P. Im using Micrium uCOSIII Operating system, and DMA_Tx_Init is in one of the tasks (before while loop).</P><P>When i'm using DMA for UART Tx without OS it works great, but when uCOS is involved, DMA isn't triggering.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>I suppose there are some flaws in my code involving interrupts, but i can't find any bugs.</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Are there any known issues with uCOSIII involving DMA and/or interrupts?</P><P>Also, i'm not sure, if there are any special interrupt or int_vector i should enable or set?</P><P style="min-height: 8pt; padding: 0px;">&nbsp;</P><P>Thank you.</P></BODY></HTML> Wed, 14 Dec 2016 10:53:53 GMT https://community.nxp.com/t5/S32-Design-Studio/S32-Micrium-uCOSIII-with-UART-DMA-on-MPC5744P/m-p/610094#M691 embedded_eng 2016-12-14T10:53:53Z Re: S32 Micrium uCOSIII with UART DMA on MPC5744P https://community.nxp.com/t5/S32-Design-Studio/S32-Micrium-uCOSIII-with-UART-DMA-on-MPC5744P/m-p/610095#M692 <HTML><HEAD></HEAD><BODY><P>hello,&nbsp;<SPAN style="color: #646464; background-color: #ffffff;"><SPAN>&nbsp;</SPAN></SPAN><A _jive_internal="true" class="" data-content-finding="Community" data-userid="291857" data-username="embedded_eng" href="https://community.nxp.com/people/embedded_eng" style="color: #3d9ce7; background-color: #ffffff; border: 0px; font-weight: 600; text-decoration: none; font-size: 11.9994px;">Iv Brl</A><SPAN style="color: #646464; background-color: #ffffff;"><SPAN>&nbsp;:</SPAN></SPAN></P><P><SPAN style="color: #646464; background-color: #ffffff;"><SPAN>Do you have the example of the UCOSIII project on MPC5744P? Could you send me a Demo of UCOSIII on MPC5744P?&nbsp;</SPAN></SPAN></P><P><SPAN style="color: #646464; background-color: #ffffff;"><SPAN>thank you very much!</SPAN></SPAN></P></BODY></HTML> Sat, 14 Dec 2019 07:22:56 GMT https://community.nxp.com/t5/S32-Design-Studio/S32-Micrium-uCOSIII-with-UART-DMA-on-MPC5744P/m-p/610095#M692 qm1013 2019-12-14T07:22:56Z