XLinux ZC702开发版：探索嵌入式开发的新世界 (xlinux zc702开发版)
随着智能化时代的到来，嵌入式设备逐渐渗透到我们生活的方方面面，例如智能家居、机器人、无人驾驶等等，这些设备需要嵌入式软件的支持。而嵌入式软件的开发，需要相应的硬件平台作为支撑。XLinux ZC702 开发版是一款完美兼容Linux系统的 FPGA 开发平台, 它可以以较低的成本方便地开发出高性能的嵌入式软件。本文将探究 XLinux ZC702 开发版在嵌入式开发中的应用以及优势。
一、XLinux ZC702开发板的硬件架构和特点
XLinux ZC702 开发板基于 Xilinx 的 Zynq XC7Z020-1CLG484C FPGA 芯片，该芯片集成了双核 ARM Cortex-A9 处理器和数字信号处理系统，同时兼容 FPGA的可扩展性和灵活性，这使得XLinux ZC702 开发板成为了一款强大的嵌入式开发平台。此外，XLinux ZC702 开发板还具备以下特点：
1. 丰富的外部接口：包括多个以太网口、USB接口、HDMI输入输出接口、GPIO、SD卡等，满足各种复杂的应用需求。
2. 稳定的操作系统支持：XLinux ZC702 开发板可以完美兼容 Linux 操作系统，使得开发人员可以快速地启动开发环境，并进行相关的嵌入式开发。
3. 性价比高：相比其他高性能嵌入式开发板，XLinux ZC702 成本更低，同时还具有更可扩展的特性，使得它成为了一个理想的嵌入式开发平台。
二、XLinux ZC702开发版在嵌入式开发中的应用
XLinux ZC702 开发板在嵌入式系统开发领域具有广泛的应用，以下是几个常见的应用场景：
1. 视频处理：XLinux ZC702 开发板可以接收 HDMI 输入信号，对视频信号进行处理，输出处理后的图像，这使得它在监控、车载电视等方面有着广泛的应用。
2. 机器学习：XLinux ZC702 开发板可以配合 TensorFlow 等机器学习框架，进行原型机的快速开发，这使得它在无人机、自动化物流和无人驾驶等领域有着重要的作用。
3. 网络安全：XLinux ZC702 开发板可以作为一台基于 Linux 的网络安全设备，实现网络安全监控、流量分析等功能。
4. 自动化生产：由于XLinux ZC702 开发板具备强大的可扩展性和可编程性，它可以作为一台自动化生产设备，通过控制外部设备实现自动化生产流程，提高生产效率和一致性。
三、XLinux ZC702开发版优势分析
相较于其他嵌入式开发平台，XLinux ZC702 开发版具有以下优势：
1. 高性能：XLinux ZC702 开发板基于中央处理器和 FPGA 的混合架构，使得它具备了高性能和低延迟的特点，这使得它在实时性和处理性能方面有着优秀的表现。
2. 高度可扩展：XLinux ZC702 开发板支持多种外部接口和扩展卡，扩展性非常高，可以满足各种复杂应用需求。
3. 兼容性强：XLinux ZC702 开发板完全兼容于 Linux 操作系统，这大大降低了新开发者的学习成本，提高了开发效率。
4. 价格实惠：相较于其他高性能嵌入式开发平台， XLinux ZC702开发版的价格更加实惠，使得它成为了设计师中的首选开发平台，降低了设计成本, 更容易实现低成本的产品设计。
结论
XLinux ZC702 开发板是一款高性能、兼容 Linux 操作系统、兼容 FPGA 的嵌入式开发平台，可以广泛应用于视频处理、机器学习、网络安全、自动化生产等领域，成本低廉，性价比非常高。在智能化时代，这样一款多功能的嵌入式开发平台将会受到更广泛的关注和应用。
相关问题拓展阅读：
zynq运行操作系统之linux kernel编译
然后拷贝出arch/arm/boot/uImage 到SD卡即可
Linux with HDMI video output on the ZED, ZC702 and ZC706 boards
ADV7511 HDMI tranitter Linux Driver
Building the Zynq Linux kernel and devicetrees from source
axiiic
没硬件怎么玩zynq7000
官网提供的可执行文件是基于64位Linux的：zynq_linux.tar.gz.
对于32位的系统，需要自己编译，解决方案如下：
1） 下载代码：git clone
2） 配置工程：
cd qemu-xarm
./configure –target-list=arm-softmmu –disable-werror –disable-kvm
3） 编译： make
4) 编译结果：
$ ls -l arm-softmmu/qemu-system-arm
-rwxrwxr-x. 1 walt waltNov 6 15:27 arm-softmmu/qemu-system-arm
5） 检测环境是否OK，测试如下：
$ ./arm-softmmu/qemu-system-arm -h
QEMU emulator version 1.0.50, Copyright (c)Fabrice Bellard
usage: qemu-system-arm
‘disk_image’ is a raw hard disk image for IDE hard disk 0
Standard options:
-h or -help display this help and exit
-version display version information and exit
-machine name>
selects emulated machine (-machine ? for list)
property accel=accel1> selects accelerator
supported accelerators are kvm, xen, tcg (default: tcg)
-cpu cpu select CPU (-cpu ? for list)
…… ……
注： 若无法执行，请按
提示安装缺失的动态库。
替换官方下载的压缩包中的文件为新编译的qemu-system-arm，测试执行如下：
# ./start_qemu.sh
ram size=
error reading QSPI block device
error no mtd drive for nand flash
a0mpcore_priv: p_priv_base f8f00000
error no sd drive for sdhci controller (0)
error no sd drive for sdhci controller (1)
Number of configured NICs 0×1
ram_size, board_id d32, loader_start 0
Uncompressing Linux… done, booting the kernel.
Booting Linux on physical CPU 0
Linux version 3.3.0-14.2-build1 (relman@xcobldal824) (gcc version 4.6.1 (Sourcery CodeBench Lite 2023.09-50) ) #1 P PREEMPT Thu Jul 12 09:04:32 MDT 2023
CPU: ARMv7 Processor revision 0 (ARMv7), cr=10c5387d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
Machine: Xilinx Zynq Platform, model: Xilinx Zynq ZC702
bootconsole enabled
Memory policy: ECC disabled, Data cache writealloc
PERCPU: Embedded 7 pages/cpu @c190b000 s5696 r8192 d14784 u32768
Built 1 zonelists in Zone order, mobility grouping on. Total pages:
Kernel command line: console=ttyPS0,root=/dev/ram rw initrd=0×800000,8M ip=:::::eth0:dhcp earlyprintk
PID hash table entries: 4096 (order: 2,bytes)
Dentry cache hash table entries:(order: 7,bytes)
Inode-cache hash table entries:(order: 6,bytes)
Memory: 240MB 768MB = 1008MB total
Memory:k/k available, 39296k reserved,K highmem
Virtual kernel memory layout:
vector : 0xffff0000 – 0xffff1000 ( 4 kB)
fixmap : 0xfff00000 – 0xfffe0000 ( 896 kB)
vmalloc : 0xf– 0xff( 240 MB)
lowmem : 0xc– 0xef( 760 MB)
pkmap : 0xbfe00000 – 0xc( 2 MB)
modules : 0xbf– 0xbfe00000 ( 14 MB)
.text : 0xc– 0xc040bdb0 (4112 kB)
.init : 0xc040c000 – 0xc( 146 kB)
.data : 0xc– 0xc045fd20 ( 184 kB)
.bss : 0xc045fd44 – 0xc0479f5c ( 105 kB)
Preemptible hierarchical RCU implementation.
Verbose stalled-CPUs detection is disabled.
NR_IRQS:128
xlnx,ps7-ttc-1.00.a #0 at 0xf, irq=43
Console: colour dummy device 80×30
Calibrating delay loop… 147.35 BogoMIPS (lpj=736768)
pid_max: default:minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr
p_twd: clock not found: -2
Calibrating local timer… 84.48MHz.
hw perfevents: enabled with ARMv7 Cortex-A9 PMU driver, 1 counters available
Setting up static identity map for 0x2f3000 – 0x2f3034
CPU1: Booted secondary processor
CPU1: thread -1, cpu 1, socket 0, mpidr
Brought up 2 CPUs
P: Total of 2 processors activated (271.66 BogoMIPS).
devtmpfs: initialized
NET: Registered protocol family 16
L2x0 series cache controller enabled
l2x0: 8 ways, CACHE_ID 0×, AUX_CTRL 0×, Cache size:B
registering platform device ‘pl330′ id 0
registering platform device ‘arm-pmu’ id 0
hw-breakpoint: debug architecture 0×0 unsupported.
xslcr xslcr.0: at 0xFmapped to 0xF
bio: create slab at 0
gpiochip_add: registered GPIOs 0 to 245 on device: xgpiops
xgpiops e000a000.gpio: gpio at 0xe000a000 mapped to 0xf000a000
SCSI subsystem initialized
ucore: registered new interface driver ufs
ucore: registered new interface driver hub
ucore: registered new device driver u
Switching to clocksource xttcpss_timer1
NET: Registered protocol family 2
IP route cache hash table entries:(order: 5,bytes)
TCP established hash table entries:(order: 8,bytes)
TCP bind hash table entries:(order: 7,bytes)
TCP: Hash tables configured (establishedbind 65536)
TCP reno registered
UDP hash table entries: 512 (order: 2,bytes)
UDP-Lite hash table entries: 512 (order: 2,bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Trying to unpack rootfs image as initramfs…
rootfs image is not initramfs (junk in compressed archive); looks like an initrd
Freeing initrd memory: 8192K
xscugtimer xscugtimer.0: ioremap fe00c200 to f000c200 with size 400
pl330 dev 0 probe success
highmem bounce pool size: 64 pages
JFFS2 version 2.2. (NAND) (SUMMARY) ©Red Hat, Inc.
msgmni has been set to 1459
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
e.uart: ttyPS0 at MMIO 0xe(irq = 82) is a xuartps
console enabled, bootconsole disabled
console enabled, bootconsole disabled
e.uart: ttyPS1 at MMIO 0xe(irq = 59) is a xuartps
xdevcfg f.devcfg: ioremap fto fwith size 100
brd: module loaded
loop: module loaded
GEM: BASEADDRESS hw: e000b000 virt: f
XEMACPS mii bus: probed
xemacps e000b000.eth: invalid address, use assigned
MAC updated d2:c4:43:31:6b:d0
eth0, pdev->id -1, baseaddr 0xe000b000, irq 54
ehci_hcd: USB 2.0 ‘Enhanced’ Host Controller (EHCI) Driver
xups-ehci xups-ehci.0: Xilinx PS USB EHCI Host Controller
xups-ehci xups-ehci.0: new USB bus registered, assigned bus number 1
xups-ehci xups-ehci.0: irq 53, io mem 0×
xups-ehci xups-ehci.0: USB 2.0 started, EHCI 0.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 0 ports detected
Initializing USB Mass Storage driver…
ucore: registered new interface driver u-storage
USB Mass Storage support registered.
Xilinx PS USB Device Controller driver (Apr 01, 2023)
mousedev: PS/2 mouse device common for all mice
i2c /dev entries driver
Linux video capture interface: v2.00
gspca_main: v2.14.0 registered
uvcvideo: Unable to create debugfs directory
ucore: registered new interface driver uvcvideo
USB Video Class driver (1.1.1)
WDT OF probe
xwdtps f.swdt: Xilinx Watchdog Timer at 0xfwith timeout 10 seconds
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Osan
sdhci-pltfm: SDHCI platform and OF driver helper
mmc0: SDHCI controller on e.sdhci using ADMA
ucore: registered new interface driver uhid
uhid: USB HID core driver
TCP cubic registered
NET: Registered protocol family 17
VFP support v0.3: implementor 41 architecture 3 part 40 variant 0 rev 0
Registering SWP/SWPB emulation handler
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
GEM: lp->tx_bd ffdfb000 lp->tx_bd_dma 2f2b2023 lp->tx_skb ee9199c0
GEM: lp->rx_bd ffdfc000 lp->rx_bd_dma 2f2b1000 lp->rx_skb ee9198c0
GEM: MAC 0x3143c4d2, 0x0000d06b, d2:c4:43:31:6b:d0
GEM: phydev ee90ec00, phydev->phy_id 0x1410cc2, phydev->addr 0×17
eth0, phy_addr 0×17, phy_id 0x01410cc2
eth0, attach phy driver
Sending DHCP requests ., OK
IP-Config: Got DHCP answer from 10.0.2.2, my address is 10.0.2.15
IP-Config: Complete:
device=eth0, addr=10.0.2.15, mask=255.255.255.0, gw=10.0.2.2,
host=10.0.2.15, domain=, nis-domain=(none),
bootserver=10.0.2.2, rootserver=10.0.2.2, rootpath=
RAMDISK: ext2 filesystem found at block 0
RAMDISK: Loading 8192KiB into ram disk… done.
VFS: Mounted root (ext2 filesystem) on device 1:0.
devtmpfs: mounted
Freeing init memory: 144K
Starting rcS…
++ Mounting filesystem
++ Setting up mdev
eth0: link up (1000/FULL)
++ Starting telnet daemon
++ Starting http daemon
++ Starting ftp daemon
++ Starting dropbear (ssh) daemon
rcS Complete
zynq> uname -v
#1 P PREEMPT Thu Jul 12 09:04:32 MDT 2023
zynq> df
Filesystem 1K-blocks Used Available Use% Mounted on
none08 0% /tmp
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