Vitis 2023.2 新体验

Vitis 这个工具出来的时候,中文里还是一大片资料建议用2018.3的老旧IDE,具体名字我已经忘了,这次2023.2不但在Vivado带来了Linter这么牛逼实用的工具,Vitis也套上了VSC的皮,非常漂亮.

但是开发和各种调试什么都有一点点的差别,软件上也用SDP这个宏定义给区分开了,新的库使用起来更加简单,我这里简单新建一个工程,其中EMIO引出的引脚接到PL LED,AXI GPIO引脚接到PL KEY并使用中断,PS串口调试拉出来,算是非常简单的例子了.

导出xsa后启动Vitis,就能看到这个界面,需要先选workspace到我们一个创建好给vitis工作的目录.

Open Workspace 指定工作目录后就是这样.

第二步Create Platform Component

从这里创建一个Hello World的App.

左下角完成编译,先跑个Hello World.

调试一下确保基础配置正常.

接下来程序就不是特别难了,配置也简单很多,注释也在代码中了.

/******************************************************************************
* Copyright (C) 2023 Advanced Micro Devices, Inc. All Rights Reserved.
* SPDX-License-Identifier: MIT
******************************************************************************/
/*
 * helloworld.c: simple test application
 *
 * This application configures UART 16550 to baud rate 9600.
 * PS7 UART (Zynq) is not initialized by this application, since
 * bootrom/bsp configures it to baud rate 115200
 *
 * ------------------------------------------------
 * | UART TYPE   BAUD RATE                        |
 * ------------------------------------------------
 *   uartns550   9600
 *   uartlite    Configurable only in HW design
 *   ps7_uart    115200 (configured by bootrom/bsp)
 */

#include <stdio.h>
#include <xgpioPS.h>
#include <xgpio_l.h>
#include <xstatus.h>
#include "platform.h"
#include "xil_printf.h"

#include "xgpio.h"
#include "xgpiops.h"
#include "xparameters.h"

#include "xscugic.h"
#include "xinterrupt_wrap.h"

#define EMIO_LED        54

XGpioPs_Config *XGpioPsConfigPtr;
XGpioPs GpioPs;

XGpio_Config *GpioConfigPtr;
XGpio Gpio;

void GpioHandler(void *CallbackRef)
{
	XGpio *GpioPtr = (XGpio *)CallbackRef;

    XGpioPs_WritePin(&GpioPs, EMIO_LED, ~XGpioPs_ReadPin(&GpioPs, EMIO_LED));

	// 清中断
	XGpio_InterruptClear(GpioPtr, XGPIO_IR_CH1_MASK);
}

int main()
{
    int Status;

    init_platform();

    // LED 相关初始化,LED在EMIO->IO0.
    XGpioPsConfigPtr = XGpioPs_LookupConfig(XPAR_XGPIOPS_0_BASEADDR);

    if(XGpioPsConfigPtr == NULL){
        print("Led Gpio Initialization Failed\r\n");
        return XST_FAILURE;
    }

    XGpioPs_CfgInitialize(&GpioPs,XGpioPsConfigPtr,XGpioPsConfigPtr->BaseAddr);
    XGpioPs_SetDirectionPin(&GpioPs, EMIO_LED, 1);
	XGpioPs_SetOutputEnablePin(&GpioPs, EMIO_LED, 1);

    // 按键初始化,按键在AXI GPIO
	GpioConfigPtr = XGpio_LookupConfig(XPAR_XGPIO_0_BASEADDR);
	Status = XGpio_Initialize(&Gpio, XPAR_XGPIO_0_BASEADDR);
	if (Status != XST_SUCCESS) {
        print("Led Gpio Initialization Failed\r\n");
		return XST_FAILURE;
	}
    
    // 设置为输入并启用中断
    XGpio_SetDataDirection(&Gpio, 1 /* 两个通道,我们是通道1. */, 1);
    XGpio_InterruptEnable(&Gpio, XGPIO_IR_CH1_MASK);
    XGpio_InterruptGlobalEnable(&Gpio);

	Status = XSetupInterruptSystem(&Gpio, &GpioHandler,
				       GpioConfigPtr->IntrId,
				       GpioConfigPtr->IntrParent,
				       XINTERRUPT_DEFAULT_PRIORITY);
	if (Status != XST_SUCCESS) {
        print("Intr Gpio Initialization Failed\r\n");
		return XST_FAILURE;
	}

    while (1) {    

    }

    cleanup_platform();
    return 0;
}

实际测试.

更多参考代码.

https://github.com/Xilinx/embeddedsw