dfdias

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  1. dfdias

    AXIQUADSPI-ACL-NEXYS4

    Hum ok I will try. That actually makes sense, although when opened a debug session I saw that the register containg cpha and cpol was as it should be. Thanks in advance. I will reply as soon as I test it.
  2. dfdias

    AXIQUADSPI-ACL-NEXYS4

    Hi was trying to interface the accelerometer available on the nexys 4 board. But i was not getting any data. Then I mapped the output pins to the JA PMOD header so I could probe them Using an logic analyzer I saw that the sclk and Chip_select were working but the MOSI signal is full of zeroes. I connected an 50MHz clk coming from the clock wizard, and then connected it to the ext_spi_clk and used an scale of 16 so the clk is about 3.16MHz Below is the Block_Design helloworld.c Below is the data I acquired using saleae logic analyzer: I submitted the C files containing the main (helloworld.c) wich is a almost linear copy of the polled example; The accelmacros file has some values with the commands and register addressees of the SPI slave. Do you have any hint of what I am missing? Thanks in advance. accelmacros.h