ZYNQ EMIO MIO

2024-03-21 07:28
文章标签 zynq mio emio

本文主要是介绍ZYNQ EMIO MIO，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1 概述

先来了解GPIO的BANK分布，在UG585文档GPIO一章中可以看到GPIO是有4个BANK，
注意与MIO的BANK区分。
BANK0 控制32个信号，BANK1控制22个信号，总共是MIO的54个引脚，也就是诸如
SPI,I2C,USB,SD 等 PS 端外设接口；
BANK2和BANK3共能控制64个PL端引脚，注意每一组都有三个信号，输入EMIOGPIOI，
输出EMIOGPIOO，输出使能EMIOGPIOTN，类似于三态门，共192个信号。可以连接到PL
端引脚，通过PS控制信号。
在这里插入图片描述

下图为GPIO的控制框图，实验中会用到输出部分的寄存器，数据寄存器DATA，数据掩
码寄存器MASK_DATA_LSW，MASK_DATA_MSW，方向控制寄存器DIRM，输出使能控制
器OEN。
在这里插入图片描述
在这里插入图片描述

2 MIO 按键中断

前面介绍了MIO作为输出控制LED灯，这里讲一下利用MIO作为按键输入控制LED灯。

  1. 通过UG585文档看下GPIO的结构图，中断的寄存器：
    INT_MASK：中断掩码
    INT_DIS: 中断关闭
    INT_EN: 中断使能
    INT_TYPE: 中断类型，设置电平敏感还是边沿敏感
    INT_POLARITY: 中断极性，设置低电平或下降沿还是高电平或上升沿
    INT_ANY: 边沿触发方式，需要INT_TYPE设置为边沿敏感才能使用
    设置中断产生方式时需要INT_TYPE、INT_POLARITY、INT_ANY配合使用。具体寄存器含义请参
    考UG585 Register Details 部分。
    在这里插入图片描述

在这里插入图片描述
在这里插入图片描述

/******************************************************************************
*
* Copyright (C) 2009 - 2014 Xilinx, Inc.  All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the Xilinx shall not be used
* in advertising or otherwise to promote the sale, use or other dealings in
* this Software without prior written authorization from Xilinx.
*
******************************************************************************//** 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 "platform.h"
#include "xil_printf.h"
#include "sleep.h"
#include "xgpiops.h"#define GPIO_DEVICE_ID		XPAR_XGPIOPS_0_DEVICE_ID/** The following are declared globally so they are zeroed and can be* easily accessible from a debugger.*/
XGpioPs Gpio;	/* The driver instance for GPIO Device. */int main()
{init_platform();int Status;XGpioPs_Config *ConfigPtr;/* Initialize the GPIO driver. */ConfigPtr = XGpioPs_LookupConfig(GPIO_DEVICE_ID);Status = XGpioPs_CfgInitialize(&Gpio, ConfigPtr,ConfigPtr->BaseAddr);if (Status != XST_SUCCESS) {return XST_FAILURE;}/** Set the direction for the pin to be output and* Enable the Output enable for the LED Pin.*/XGpioPs_SetDirectionPin(&Gpio, 54, 1);XGpioPs_SetDirectionPin(&Gpio, 55, 1);XGpioPs_SetDirectionPin(&Gpio, 56, 1);XGpioPs_SetDirectionPin(&Gpio, 57, 1);XGpioPs_SetDirectionPin(&Gpio, 58, 1);XGpioPs_SetDirectionPin(&Gpio, 59, 1);XGpioPs_SetDirectionPin(&Gpio, 60, 1);XGpioPs_SetDirectionPin(&Gpio, 61, 1);XGpioPs_SetDirectionPin(&Gpio, 62, 1);XGpioPs_SetDirectionPin(&Gpio, 63, 1);XGpioPs_SetOutputEnablePin(&Gpio, 54, 1);XGpioPs_SetOutputEnablePin(&Gpio, 55, 1);XGpioPs_SetOutputEnablePin(&Gpio, 56, 1);XGpioPs_SetOutputEnablePin(&Gpio, 57, 1);XGpioPs_SetOutputEnablePin(&Gpio, 58, 1);XGpioPs_SetOutputEnablePin(&Gpio, 59, 1);XGpioPs_SetOutputEnablePin(&Gpio, 60, 1);XGpioPs_SetOutputEnablePin(&Gpio, 61, 1);XGpioPs_SetOutputEnablePin(&Gpio, 62, 1);XGpioPs_SetOutputEnablePin(&Gpio, 63, 1);while(1){/* Set the GPIO output to be low. */XGpioPs_WritePin(&Gpio, 54, 0x0);XGpioPs_WritePin(&Gpio, 55, 0x0);XGpioPs_WritePin(&Gpio, 56, 0x0);XGpioPs_WritePin(&Gpio, 57, 0x0);XGpioPs_WritePin(&Gpio, 58, 0x0);XGpioPs_WritePin(&Gpio, 59, 0x0);XGpioPs_WritePin(&Gpio, 60, 0x0);XGpioPs_WritePin(&Gpio, 61, 0x0);XGpioPs_WritePin(&Gpio, 62, 0x0);XGpioPs_WritePin(&Gpio, 63, 0x0);sleep(1);print("Hello World\n\r");/* Set the GPIO output to be high. */XGpioPs_WritePin(&Gpio, 54, 0x1);XGpioPs_WritePin(&Gpio, 55, 0x1);XGpioPs_WritePin(&Gpio, 56, 0x1);XGpioPs_WritePin(&Gpio, 57, 0x1);XGpioPs_WritePin(&Gpio, 58, 0x1);XGpioPs_WritePin(&Gpio, 59, 0x1);XGpioPs_WritePin(&Gpio, 60, 0x1);XGpioPs_WritePin(&Gpio, 61, 0x1);XGpioPs_WritePin(&Gpio, 62, 0x1);XGpioPs_WritePin(&Gpio, 63, 0x1);sleep(1);}cleanup_platform();return 0;
}

带按键中断的代码

/******************************************************************************
*
* Copyright (C) 2009 - 2014 Xilinx, Inc.  All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* XILINX  BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the Xilinx shall not be used
* in advertising or otherwise to promote the sale, use or other dealings in
* this Software without prior written authorization from Xilinx.
*
******************************************************************************//** 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 "platform.h"
#include "xscugic.h"
#include "xil_printf.h"
#include "sleep.h"
#include "xgpiops.h"#define GPIO_DEVICE_ID		XPAR_XGPIOPS_0_DEVICE_ID
#define INTC_DEVICE_ID	    XPAR_SCUGIC_SINGLE_DEVICE_ID
#define KEY_INTR_ID         XPAR_XGPIOPS_0_INTR#define EMIO_LD0  58
#define EMIO_LD1  59
#define EMIO_LD2  60
#define EMIO_LD3  61/** The following are declared globally so they are zeroed and can be* easily accessible from a debugger.*/
XGpioPs Gpio;	/* The driver instance for GPIO Device. */
int key_flag ;
XScuGic INTCInst;int IntrInitFuntion(XScuGic *InstancePtr, u16 DeviceId, XGpioPs *GpioInstancePtr);
void GpioHandler(void *CallbackRef);int main()
{init_platform();int Status;XGpioPs_Config *ConfigPtr;int key_val  = 0 ;key_flag = 0 ;/* Initialize the GPIO driver. */ConfigPtr = XGpioPs_LookupConfig(GPIO_DEVICE_ID);Status = XGpioPs_CfgInitialize(&Gpio, ConfigPtr,ConfigPtr->BaseAddr);if (Status != XST_SUCCESS) {return XST_FAILURE;}/** Set the direction for the pin to be output and* Enable the Output enable for the LED Pin.*/XGpioPs_SetDirectionPin(&Gpio, 54, 1);XGpioPs_SetDirectionPin(&Gpio, 55, 1);XGpioPs_SetDirectionPin(&Gpio, 56, 1);XGpioPs_SetDirectionPin(&Gpio, 57, 1);XGpioPs_SetDirectionPin(&Gpio, 58, 1);XGpioPs_SetDirectionPin(&Gpio, 59, 1);XGpioPs_SetDirectionPin(&Gpio, 60, 1);XGpioPs_SetDirectionPin(&Gpio, 61, 1);XGpioPs_SetDirectionPin(&Gpio, 62, 1);XGpioPs_SetDirectionPin(&Gpio, 63, 1);XGpioPs_SetOutputEnablePin(&Gpio, 54, 1);XGpioPs_SetOutputEnablePin(&Gpio, 55, 1);XGpioPs_SetOutputEnablePin(&Gpio, 56, 1);XGpioPs_SetOutputEnablePin(&Gpio, 57, 1);XGpioPs_SetOutputEnablePin(&Gpio, 58, 1);XGpioPs_SetOutputEnablePin(&Gpio, 59, 1);XGpioPs_SetOutputEnablePin(&Gpio, 60, 1);XGpioPs_SetOutputEnablePin(&Gpio, 61, 1);XGpioPs_SetOutputEnablePin(&Gpio, 62, 1);XGpioPs_SetOutputEnablePin(&Gpio, 63, 1);//KEY/** Set the direction for the pin to be input.* Set interrupt type as rising edge and enable gpio interrupt*/XGpioPs_SetDirectionPin(&Gpio, 64, 0);XGpioPs_SetIntrTypePin(&Gpio, 64, XGPIOPS_IRQ_TYPE_EDGE_RISING) ;XGpioPs_IntrEnablePin(&Gpio, 64) ;XGpioPs_SetDirectionPin(&Gpio, 65, 0);XGpioPs_SetDirectionPin(&Gpio, 66, 0);XGpioPs_SetDirectionPin(&Gpio, 67, 0);//SWXGpioPs_SetDirectionPin(&Gpio, 68, 0);XGpioPs_SetDirectionPin(&Gpio, 69, 0);/** sets up the interrupt system*/Status = IntrInitFuntion(&INTCInst, 64, &Gpio) ;if (Status != XST_SUCCESS)return XST_FAILURE ;while(1){/* Set the GPIO output to be low. */XGpioPs_WritePin(&Gpio, 54, 0x0);XGpioPs_WritePin(&Gpio, 55, 0x0);XGpioPs_WritePin(&Gpio, 56, 0x0);XGpioPs_WritePin(&Gpio, 57, 0x0);XGpioPs_WritePin(&Gpio, 58, 0x0);XGpioPs_WritePin(&Gpio, 59, 0x0);XGpioPs_WritePin(&Gpio, 60, XGpioPs_ReadPin(&Gpio,68));XGpioPs_WritePin(&Gpio, 61, XGpioPs_ReadPin(&Gpio,69));//XGpioPs_WritePin(&Gpio, 62, 0x0);XGpioPs_WritePin(&Gpio, 63, 0x0);if (key_flag){XGpioPs_WritePin(&Gpio, 62, key_val) ;key_val = ~key_val ;key_flag = 0 ;}sleep(1);print("Hello World\n\r");/* Set the GPIO output to be high. */XGpioPs_WritePin(&Gpio, 54, 0x1);XGpioPs_WritePin(&Gpio, 55, 0x1);XGpioPs_WritePin(&Gpio, 56, 0x1);XGpioPs_WritePin(&Gpio, 57, 0x1);XGpioPs_WritePin(&Gpio, 58, 0x1);XGpioPs_WritePin(&Gpio, 59, 0x1);//XGpioPs_WritePin(&Gpio, 60, 0x1);//XGpioPs_WritePin(&Gpio, 61, 0x1);//XGpioPs_WritePin(&Gpio, 62, 0x1);XGpioPs_WritePin(&Gpio, 63, 0x1);sleep(1);}cleanup_platform();return 0;
}int IntrInitFuntion(XScuGic *InstancePtr, u16 DeviceId, XGpioPs *GpioInstancePtr)
{XScuGic_Config *IntcConfig;int Status ;/** Initialize the interrupt controller driver so that it is ready to* use.*/IntcConfig = XScuGic_LookupConfig(INTC_DEVICE_ID);Status = XScuGic_CfgInitialize(InstancePtr, IntcConfig, IntcConfig->CpuBaseAddress) ;if (Status != XST_SUCCESS)return XST_FAILURE ;/** set priority and trigger type*/XScuGic_SetPriorityTriggerType(InstancePtr, KEY_INTR_ID,0xA0, 0x3);/** Connect the device driver handler that will be called when an* interrupt for the device occurs, the handler defined above performs* the specific interrupt processing for the device.*/Status = XScuGic_Connect(InstancePtr, KEY_INTR_ID,(Xil_ExceptionHandler)GpioHandler,(void *)GpioInstancePtr) ;if (Status != XST_SUCCESS)return XST_FAILURE ;/** Enable the interrupt for the device.*/XScuGic_Enable(InstancePtr, KEY_INTR_ID) ;Xil_ExceptionInit();Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,(Xil_ExceptionHandler)XScuGic_InterruptHandler,InstancePtr);Xil_ExceptionEnable();return XST_SUCCESS ;}void GpioHandler(void *CallbackRef)
{XGpioPs *GpioInstancePtr = (XGpioPs *)CallbackRef ;int Int_val ;Int_val = XGpioPs_IntrGetStatusPin(GpioInstancePtr, 64) ;/** Clear interrupt.*/XGpioPs_IntrClearPin(GpioInstancePtr, 64) ;if (Int_val)key_flag = 1 ;
}

这篇关于ZYNQ EMIO MIO的文章就介绍到这儿，希望我们推荐的文章对编程师们有所帮助！


http://www.chinasem.cn/article/832081。

相关文章

ZYNQ LWIP (RAW API) UDP函数学习

ZYNQ LWIP (RAW API) UDP函数学习

1 RAW API接口 RAW API是基于回调函数实现的API接口，它是很底层的API接口，这需要开发者对LwIP有较深的了解才能很好使用它，RAW API的核心就是对控制块的处理，因为对于报文数据的处理、注册回调函数等都是需要开发者自己去实现，都是比较麻烦的，但是有一个优点，那就是处理数据效率高。 2 RAW API的UDP函数说明 udp_new()–新建控制块 在使用UDP协议进行通
阅读更多...
ZYNQ MPSOC FPGA 仿真 教程

ZYNQ MPSOC FPGA 仿真 教程

1. **FPGA与MPSOC**: FPGA (Field Programmable Gate Array) 是一种可以通过编程配置的集成电路，适用于各种应用和功能。MPSOC (Multi-Processor System on Chip) 是集成了多个处理器（通常是微处理器）的系统芯片，用于处理复杂的应用，如图像处理、网络通信等。 2. **仿真与分析**:    - **仿
阅读更多...
【ZYNQ MPSoC开发】lwIP TCP发送用于数据缓存的软件FIFO设计

【ZYNQ MPSoC开发】lwIP TCP发送用于数据缓存的软件FIFO设计

设计背景        任务是在ZYNQ的PS上使用裸机运行lwIP协议栈使用TCP把PL端通过AXI DMA传来的将近100K采样率的ADC数据发送出去，但由于数据带宽很大，有853.3mbps，所以在每一次AXI DMA简单传输结束后，lwIP未必有足够的发送buffer立即把数据发送走，如果是发送完再进行下一次简单传输的思路，则会很大地限制了整个系统的带宽，一个简单的思路是每次传输完成后判
阅读更多...
petalinux,Zynq UltraScale+ MPSoC；WARNING: Failed to load PMUFW, doesn't exist in pre-built.

petalinux,Zynq UltraScale+ MPSoC；WARNING: Failed to load PMUFW, doesn't exist in pre-built.

petalinux-package --pmufw ./images/linux/pmufw.elf 这个参数貌似没有生效； 解决办法： cp images/linux/pmufw.elf ./pre-built/linux/images/
阅读更多...
江山易改本性难移之ZYNQ SDK API函数笔记(UART)

江山易改本性难移之ZYNQ SDK API函数笔记(UART)

初学Xilinx ZYNQ SDK的开发，下面记录使用到的API函数及自己的理解。若有误，还请指教。 UART函数 常用编程步骤： 1.查找输入设备的ID查找设备； 2.输入的配置信息初始化； 3.设置工作模式； 4.设置波特率； 5.设置RxFIFO的中断触发等级； 6.设置接收超时时间； 7.设置UART的中断触发方式 配置UART只需要以上5个步骤，其中6、7是笔者做串口不定
阅读更多...
江山易改本性难移之ZYNQ SDK API函数笔记(Timer)

江山易改本性难移之ZYNQ SDK API函数笔记(Timer)

初学Xilinx ZYNQ SDK的开发，下面记录使用到的API函数及自己的理解。若有误，还请指教。 Timer函数 常用编程步骤： 1.查找输入设备的ID查找设备； 2.输入的配置信息初始化； 3.加载计数周期； 4.设置自动装载模式； 5.启动定时器； 配置GPIO只需要以上5个步骤。 1、XGpioPs_Config *XGpioPs_LookupConfig(u16 Devi
阅读更多...
万变不离其宗之ZYNQ串口介绍

万变不离其宗之ZYNQ串口介绍

导语     串口是我们在设计程序中最常用的接口，串口是硬件系统运行状态的忠实打印者，可以完成数据的传输、log输出等功能。 1.串口介绍           通信的两种方式：串行通信、并行通信           串行通信方式分为：同步通信、异步通信          关于传输方向：单工、半双工、全双工 UART（异步串行通信）            ZYNQ的
阅读更多...
4 - ZYNQ 信号、接口与引脚

4 - ZYNQ 信号、接口与引脚

文章目录 1 ZYNQ信号、接口与引脚1.1 电源引脚1.2 PS信号引脚1.3 PL信号引脚1.4 PS和PL交互接口 1 ZYNQ信号、接口与引脚 ZYNQ的信号、接口与引脚如下图所示，主要分为： PS部分PL部分PS和PL交互部分PS和PL共用部分（如JTAG） 1.1 电源引脚 PS与PL部分均需要多种电平的供电电源，电源需要从特定的电源引脚接入芯片，相关电源
阅读更多...
【ZYNQ MPSoC开发】PS裸机多核程序的固化

【ZYNQ MPSoC开发】PS裸机多核程序的固化

写在前面        多核程序的固化总体操作流程与单核程序固化相同，针对本文中的一些操作，大家如果有不清楚的，可以参考我之前写的单核固化的博客。 共通前置步骤        这是区别于单核固话的主要不同之处。以我的程序为例，我用到了两个核心，分别跑在A53_0和A53_1上，结构如下图所示：        1，首先对各个核心的应用程序都build好，生成.elf文件。
阅读更多...
ZYNQ 7020 学习记录-1点灯

ZYNQ 7020 学习记录-1点灯

系列文章目录 1.点灯 文章目录 系列文章目录前言一、ZYNQ是什么？二、FPGA开发流程1.流程图2.工程管理3.需求分析4.系统框图5.编写RTL代码6.Modelsim 手动仿真7.Vivado工程 总结 前言 由于研究生课题组所研制的设备HIGH-POWER SHM SYSTEM是基于ZYNQ的，以下是本人自学ZYNQ的学习记录，所用板卡为：基于 XILINX Z
阅读更多...

Copyright China编程 23002807@qq.com

沪ICP备2023033072号-2