You copied the Doc URL to your clipboard.

Arm Cortex-M3 DesignStart FPGA-Xilinx edition User Guide : QSPI multiplexing for the V2C-DAPLink board

QSPI multiplexing for the V2C-DAPLink board

The Quad Serial Port Interface (QSPI) device, that is fitted to the V2C-DAPLink board, has two Xilinx QSPI AXI controllers. A single GPIO signal from a GPIO peripheral can select one of the two controllers to use. One of the controllers is configured in eXecute In Place (XIP) mode, the other controller is configured in normal mode, which is required to write to the memory device.

For more information on the peripherals and their memory map, see Table   5-1 Interface type


If software is intended to be run from the V2C-DAPLink board, then the software must not switch the GPIO signal across to the controller in normal mode. If this happened, then the processor can no longer read the code and the processor enters LOCKUP state.
Was this page helpful? Yes No