dragen1860

摘要： XGpioPs_SetDirection(Gpio,0x7,0x01);I am designed to write XGpioPs_SetDirectionPin(Gpio,0x07,0x01) but make a mistake !The driver api will check the validity of parameters:Xil_AssertVoid(InstancePtr !... 阅读全文

摘要： XGpioPs_SetDirection(Gpio,0x7,0x01);I am designed to write XGpioPs_SetDirectionPin(Gpio,0x07,0x01) but make a mistake !The driver api will check the validity of parameters:Xil_AssertVoid(InstancePtr !... 阅读全文

摘要： 2 important questions to notify while debuging the GIC interrupt program Once your interrupt generated, you should clear the flag bit . Otherwise, the next interrupt would be ignored . you should ... 阅读全文

摘要： Scu gic in depth – 1Scu unit is a powerful unit to deal with the coherence of L2 and memory ,and contains a general interrupt controller pl390 : It deal with the following several kinds of interrupt:P... 阅读全文

摘要： Exception in depthThe cortex a9 have 7 kinds of exception as follows:XIL_EXCEPTION_ID_RESETXIL_EXCEPTON_ID_UNDEFINED_INTXIL_EXCEPTION_ID_SWI_INTXIL_EXCEPTION_ID_PREFETCH_ABORT_INTXIL_EXCEPTION_ID_DATA... 阅读全文

摘要： GpioPs in Depth – 3GpioPs Driver API User GuideFind the directory in Xilinx ISE installation ,we can find some useful driver api sources and documents, as shown following: Go directly into gpiops_v1_0... 阅读全文

摘要： GpioPs in Depth 2We are trying to use the gpio in varying kinds of way, such as routing the gpio module to emio port, in order to use the ld0-ld7 and sw0-sw7 on zedboard.Start Xilinx PlanAhead and bui... 阅读全文

摘要： How to use the GpioPs in zedboardDifferent from other micro controller, the zynq-7000 cortex a9 has only a gpio module ,and the gpio driver api is designed for the only module, which is called XPAR_XG... 阅读全文

摘要： Unable to connect to ps7_cortexa9JTAG: cannot shift DRThis problem appears when the connection between arm cortex a9 and computer is broken. We have no effective solution to solve the problem. You can... 阅读全文

摘要： Several Problems in the Xilinx SDK projectarm-xilinx-eabi-gcc is not recognized as an internal or external command check the directory: I:\Xilinx\14.4\ISE_DS\EDK\gnu it should have 3 file folder:... 阅读全文