Hello everyone,
I am using 7z020 Zedboard. I want to send/receive data using SPI through EMIO.
In the XPS , clock wizard the range of SPI clock frequency is 10-200 MHZ. I need 20 MHZ clock but when I am changing it following line appears
"- SPI frequency 26.000000 (MHz) should be greater than CPU_1x 111.111115 (MHz). Please select the correct SPI freuency again"
I cannot understand whats the problem?
Lets take 166 MHZ frequency and in the ucf file my pin assignment is as follows
NET "axi_spi_0_MISO_pin" LOC = E21;
NET "axi_spi_0_MOSI_pin" LOC = M21;
NET "axi_spi_0_SCK_pin" LOC = L18;
NET "axi_spi_0_SS_pin" LOC = F18;
but no signal appears at SCK_pin.
Is this a continuous signal or it will appear only on demand.?
