https://community.nxp.com/t5/i-MX-Processors/Changing-UART-debug-from-uart2-to-uart1-on-imx8MM/m-p/1718671#M212180 <DIV><SPAN>By default the imx8mm-evk use uart2 for debug console. I would like to change to uart1 and use the pins as below:</SPAN></DIV><DIV><SPAN>MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX</SPAN></DIV><DIV><SPAN>MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX</SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN>I modified u-boot and got some debug log as below:</SPAN></DIV><DIV><SPAN>U-Boot SPL 2023.04-lf_v2023.04+gaf7d004eaf (Apr 05 2011 - 23:00:00 +0000)<BR />DDRINFO: start DRAM init<BR />DDRINFO: DRAM rate 3000MTS<BR />DDRINFO:ddrphy calibration done<BR />DDRINFO: ddrmix config done<BR />SEC0: RNG instantiated<BR />Normal Boot<BR />Trying to boot from MMC1<BR /></SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN>And stuck here... no more debug log.</SPAN></DIV><DIV>&nbsp;</DIV><DIV><DIV><SPAN>Please tell me what part to be modified? (example: uboot, arm trusted formware, kernel....).</SPAN></DIV><DIV><SPAN>And please advise what to do for each of them.</SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN>Thank you!</SPAN></DIV><DIV>&nbsp;</DIV></DIV> Thu, 07 Sep 2023 09:32:33 GMT trongthinh 2023-09-07T09:32:33Z https://community.nxp.com/t5/i-MX-Processors/Changing-UART-debug-from-uart2-to-uart1-on-imx8MM/m-p/1718671#M212180 <DIV><SPAN>By default the imx8mm-evk use uart2 for debug console. I would like to change to uart1 and use the pins as below:</SPAN></DIV><DIV><SPAN>MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX</SPAN></DIV><DIV><SPAN>MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX</SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN>I modified u-boot and got some debug log as below:</SPAN></DIV><DIV><SPAN>U-Boot SPL 2023.04-lf_v2023.04+gaf7d004eaf (Apr 05 2011 - 23:00:00 +0000)<BR />DDRINFO: start DRAM init<BR />DDRINFO: DRAM rate 3000MTS<BR />DDRINFO:ddrphy calibration done<BR />DDRINFO: ddrmix config done<BR />SEC0: RNG instantiated<BR />Normal Boot<BR />Trying to boot from MMC1<BR /></SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN>And stuck here... no more debug log.</SPAN></DIV><DIV>&nbsp;</DIV><DIV><DIV><SPAN>Please tell me what part to be modified? (example: uboot, arm trusted formware, kernel....).</SPAN></DIV><DIV><SPAN>And please advise what to do for each of them.</SPAN></DIV><DIV>&nbsp;</DIV><DIV><SPAN>Thank you!</SPAN></DIV><DIV>&nbsp;</DIV></DIV> Thu, 07 Sep 2023 09:32:33 GMT https://community.nxp.com/t5/i-MX-Processors/Changing-UART-debug-from-uart2-to-uart1-on-imx8MM/m-p/1718671#M212180 trongthinh 2023-09-07T09:32:33Z