topic mux of cspi on the iMX53 QSB in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/mux-of-cspi-on-the-iMX53-QSB/m-p/196422#M10461 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>i have a i.MX53 QSB and i want to use the CSPI on the expanstion-port. Therefore i muxed the DISP0_DAT0 Pin to CSPI-SCLK, but there is already a signal on it. Even if i muxed it to gpio and set the value, this signal is still present. I controlled the mux with the mxc_iomux_v3_get_pad function from iomux-v3.c and everything seems right.</P><P>Is there anything that also uses the DISP0_DAT0 pin i don´t know or i miss?</P><P></P><P>best regards,</P><P>Stefan</P></BODY></HTML> Wed, 19 Sep 2012 11:08:29 GMT Stefan1z 2012-09-19T11:08:29Z mux of cspi on the iMX53 QSB https://community.nxp.com/t5/i-MX-Processors/mux-of-cspi-on-the-iMX53-QSB/m-p/196422#M10461 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>i have a i.MX53 QSB and i want to use the CSPI on the expanstion-port. Therefore i muxed the DISP0_DAT0 Pin to CSPI-SCLK, but there is already a signal on it. Even if i muxed it to gpio and set the value, this signal is still present. I controlled the mux with the mxc_iomux_v3_get_pad function from iomux-v3.c and everything seems right.</P><P>Is there anything that also uses the DISP0_DAT0 pin i don´t know or i miss?</P><P></P><P>best regards,</P><P>Stefan</P></BODY></HTML> Wed, 19 Sep 2012 11:08:29 GMT https://community.nxp.com/t5/i-MX-Processors/mux-of-cspi-on-the-iMX53-QSB/m-p/196422#M10461 Stefan1z 2012-09-19T11:08:29Z Re: mux of cspi on the iMX53 QSB https://community.nxp.com/t5/i-MX-Processors/mux-of-cspi-on-the-iMX53-QSB/m-p/196423#M10462 <HTML><HEAD></HEAD><BODY><P>Hi Stefan1z</P><P></P><P>Did you configure the Daisy Chain as well?</P><P></P><P>CSPI_IPP_CSPI_CLK_IN_SELECT_INPUT = 0b00</P><P></P><P>-ni.</P></BODY></HTML> Wed, 19 Sep 2012 21:40:23 GMT https://community.nxp.com/t5/i-MX-Processors/mux-of-cspi-on-the-iMX53-QSB/m-p/196423#M10462 NicolasIzquierd 2012-09-19T21:40:23Z Re: mux of cspi on the iMX53 QSB https://community.nxp.com/t5/i-MX-Processors/mux-of-cspi-on-the-iMX53-QSB/m-p/196424#M10463 <HTML><HEAD></HEAD><BODY><P>Hi Jose,</P><P></P><P>yes the Daisy Chain was correct. It was the hdmi/display-output on the expander which tries to send data, even when it wasn´t set as IPU.</P></BODY></HTML> Thu, 20 Sep 2012 07:28:41 GMT https://community.nxp.com/t5/i-MX-Processors/mux-of-cspi-on-the-iMX53-QSB/m-p/196424#M10463 Stefan1z 2012-09-20T07:28:41Z