如意如意发表的帖子

如意如意 · 全志 SOC

晶振无源24M，不小心弄错成有源的不工作，找了老半天

如意如意 · 全志 SOC

UU 状态是设备当前正忙

mysteryli 说：

看错了，0x40就是sht20
不过为啥一个是40 一个是UU呢

如意如意 · 全志 SOC

嗯嗯，多谢:D

如意如意 · 全志 SOC

嗯嗯，多谢晕哥解答，这是生成的镜像大小

是改 /board/widora/mangopi/r3/devicetree/linux下的devicetree.dts么？把ram分区调大么？

	spi-nand@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "spi-nand";
		reg = <0>;
		spi-max-frequency = <50000000>;
		//status = "disabled";

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				label = "u-boot";
				reg = <0x000000 0x80000>;
				read-only;
			};

			partition@1 {
				label = "kernel.itb";
				reg = <0x80000 0x580000>;
				read-only;
			};

			partition@2 {
				label = "rom";
				reg = <0x600000 0x4000000>;
				read-only;
			};

			partition@3 {
				label = "overlay";
				reg = <0x4800000 0x3000000>;
			};
		};
	};

哇酷小二说：

应该是squashfs根文件系统系统超大了，你看下文件系统镜像文件多大，然后改dts文件，应该就可以了。

如意如意 · 全志 SOC

首先感谢aodzip大佬分享的开发包，让我这个菜鸟编译系统顺利了n倍，感谢晕哥提供的平台和各位大佬的帮助。

最近想跟着逸俊晨晖大佬的帖子，跑一下视频硬解码，结果每次编译后文件系统的挂载都有问题，后来发现只要在菜单勾选ffmpg选项，哪怕只选择h264解码也不行。（编译的文件系统14M左右）

看报错unable to read id index table是分区表没找到，导致挂载文件系统失败？

看论坛的帖子，知道开发包的文件系统分squashfs只读文件系统和overlay分区的可写文件系统来实现可读可写，会不会是文件系统变大超出分区了？
0x000000000000-0x000000080000 : "u-boot"
0x000000080000-0x000000600000 : "kernel.itb"
0x000000600000-0x000004600000 : "rom" //squashfs只读文件系统
0x000004800000-0x000007800000 : "overlay" //jffs2文件系统

应该改 buildroot-tiny200/board/allwinner/generic/genimage-nand.cfg nand镜像分区配置？
还是改 buildroot-tiny200/board/allwinner/generic/uboot.env
buildroot-tiny200/board/allwinner/generic/legacy/uboot.env 里面的环境变量？

板子：MangoPi R3 128M nand版
环境：buildroot-tiny200 (F1C100/200s) 开发包

下面是勾选配置和完整启动信息，那位大佬知道的话还请指点一二 ^_^!

menuconfig_ffmpeg

ffmpeg_2

U-Boot SPL 2020.07 (Jun 10 2021 - 15:57:37 +0800)
DRAM: 64 MiB
Trying to boot from MMC1
Card did not respond to voltage select!
spl: mmc init failed with error: -95
Trying to boot from MMC2
Card did not respond to voltage select!
spl: mmc init failed with error: -95
Trying to boot from sunxi SPI
SPI-NAND: GigaDevice GD5F1GQ4UAYIG
SPI-NAND: U-Boot address: 53248


U-Boot 2020.07 (Jun 10 2021 - 15:57:37 +0800) Allwinner Technology

CPU:   Allwinner F Series (SUNIV)
Model: Allwinner F1C100s Generic Device
DRAM:  64 MiB
MMC:   mmc@1c0f000: 0, mmc@1c10000: 1
Setting up a 800x480 lcd console (overscan 0x0)
In:    serial
Out:   serial
Err:   serial
Allwinner mUSB OTG (Peripheral)
Hit any key to stop autoboot:  0 
Card did not respond to voltage select!
Card did not respond to voltage select!
unrecognized JEDEC id bytes: ff, c8, f1
Failed to initialize SPI flash at 0:0 (error -2)
List of MTD devices:
* spi-nand0
  - device: spi-nand@1
  - parent: spi@1c05000
  - driver: spi_nand
  - type: NAND flash
  - block size: 0x20000 bytes
  - min I/O: 0x800 bytes
  - OOB size: 64 bytes
  - OOB available: 31 bytes
  - 0x000000000000-0x000008000000 : "spi-nand0"
=========================
Boot Device: spi
Boot Slot 0: empty
Boot Slot 1: spi-nand
=========================
DFU waiting on SPI-NAND...
musb-hdrc: peripheral reset irq lost!
Booting from SPI-NAND...
Reading 5767168 byte(s) (2816 page(s)) at offset 0x00080000
## Loading kernel from FIT Image at 81000000 ...
   Using 'conf@0' configuration
   Trying 'kernel@0' kernel subimage
     Description:  Linux kernel
     Type:         Kernel Image
     Compression:  uncompressed
     Data Start:   0x810000cc
     Data Size:    4309048 Bytes = 4.1 MiB
     Architecture: ARM
     OS:           Linux
     Load Address: 0x80000000
     Entry Point:  0x80000000
     Hash algo:    crc32
     Hash value:   f1a8af74
   Verifying Hash Integrity ... crc32+ OK
## Loading fdt from FIT Image at 81000000 ...
   Using 'conf@0' configuration
   Trying 'fdt@0' fdt subimage
     Description:  Flattened Device Tree blob
     Type:         Flat Device Tree
     Compression:  uncompressed
     Data Start:   0x8141c1e8
     Data Size:    15655 Bytes = 15.3 KiB
     Architecture: ARM
     Hash algo:    crc32
     Hash value:   7947cec8
   Verifying Hash Integrity ... crc32+ OK
   Booting using the fdt blob at 0x8141c1e8
   Loading Kernel Image
   Loading Device Tree to 80ff9000, end 80fffd26 ... OK
Cannot setup simplefb: node not found

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 5.4.92 (root@8d496aa93fd6) (gcc version 8.4.0 (Buildroot -g22245a5-dirty)) #1 Thu Jun 10 15:58:19 CST 2021
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: Widora MangoPi R3
[    0.000000] Memory policy: Data cache writeback
[    0.000000] cma: Reserved 16 MiB at 0x83000000
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16256
[    0.000000] Kernel command line: console=ttyS0,115200 rootwait init=/preinit root=/dev/mtdblock2 rootfstype=squashfs overlayfsdev=/dev/mtdblock3 net.ifnames=0 vt.global_cursor_default=0
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 38736K/65536K available (6144K kernel code, 248K rwdata, 1676K rodata, 1024K init, 225K bss, 10416K reserved, 16384K cma-reserved)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] random: get_random_bytes called from start_kernel+0x254/0x444 with crng_init=0
[    0.000049] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000142] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000897] Console: colour dummy device 80x30
[    0.000992] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[    0.070263] pid_max: default: 32768 minimum: 301
[    0.070804] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.070851] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.072786] CPU: Testing write buffer coherency: ok
[    0.074862] Setting up static identity map for 0x80100000 - 0x80100058
[    0.076053] devtmpfs: initialized
[    0.088203] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.088267] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[    0.092586] pinctrl core: initialized pinctrl subsystem
[    0.095137] NET: Registered protocol family 16
[    0.098898] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.101302] cpuidle: using governor menu
[    0.145666] SCSI subsystem initialized
[    0.146068] usbcore: registered new interface driver usbfs
[    0.146227] usbcore: registered new interface driver hub
[    0.146389] usbcore: registered new device driver usb
[    0.146912] mc: Linux media interface: v0.10
[    0.147042] videodev: Linux video capture interface: v2.00
[    0.147176] pps_core: LinuxPPS API ver. 1 registered
[    0.147194] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.147260] PTP clock support registered
[    0.148360] ion_parse_dt_heap_common: id 4 type 4 name cma align 1000
[    0.149297] Advanced Linux Sound Architecture Driver Initialized.
[    0.151849] clocksource: Switched to clocksource timer
[    0.183688] thermal_sys: Registered thermal governor 'step_wise'
[    0.184503] NET: Registered protocol family 2
[    0.185993] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[    0.186070] TCP established hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.186124] TCP bind hash table entries: 1024 (order: 0, 4096 bytes, linear)
[    0.186171] TCP: Hash tables configured (established 1024 bind 1024)
[    0.186435] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.186493] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[    0.187018] NET: Registered protocol family 1
[    0.189658] NetWinder Floating Point Emulator V0.97 (double precision)
[    0.191556] Initialise system trusted keyrings
[    0.192324] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[    0.214764] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[    0.215423] jffs2: version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
[    0.337664] Key type asymmetric registered
[    0.337705] Asymmetric key parser 'x509' registered
[    0.337882] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 249)
[    0.337908] io scheduler mq-deadline registered
[    0.337926] io scheduler kyber registered
[    0.354205] suniv-f1c100s-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.379602] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.385922] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pa not found, using dummy regulator
[    0.387295] printk: console [ttyS0] disabled
[    0.407601] 1c25400.serial: ttyS0 at MMIO 0x1c25400 (irq = 27, base_baud = 6250000) is a 16550A
[    0.841418] printk: console [ttyS0] enabled
[    0.851177] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    0.872318] panel-simple panel: panel supply power not found, using dummy regulator
[    0.881965] SCSI Media Changer driver v0.25 
[    0.887809] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pc not found, using dummy regulator
[    0.900714] spi-nand spi0.0: GigaDevice SPI NAND was found.
[    0.906419] spi-nand spi0.0: 128 MiB, block size: 128 KiB, page size: 2048, OOB size: 64
[    0.916009] 4 fixed-partitions partitions found on MTD device spi0.0
[    0.922475] Creating 4 MTD partitions on "spi0.0":
[    0.927313] 0x000000000000-0x000000080000 : "u-boot"
[    0.937742] 0x000000080000-0x000000600000 : "kernel.itb"
[    0.946595] random: fast init done
[    0.969643] 0x000000600000-0x000004600000 : "rom"
[    1.203317] 0x000004800000-0x000007800000 : "overlay"
[    1.380159] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.386811] ehci-platform: EHCI generic platform driver
[    1.392508] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.398733] ohci-platform: OHCI generic platform driver
[    1.404552] usbcore: registered new interface driver usb-storage
[    1.411526] usb_phy_generic usb_phy_generic.0.auto: usb_phy_generic.0.auto supply vcc not found, using dummy regulator
[    1.425183] i2c /dev entries driver
[    1.429333] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pd not found, using dummy regulator
[    1.443175] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pe not found, using dummy regulator
[    1.454196] sun4i-csi 1cb0000.csi: Packed (RAW) format enabled.
[    1.462071] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[    1.472136] suniv-f1c100s-pinctrl 1c20800.pinctrl: 1c20800.pinctrl supply vcc-pf not found, using dummy regulator
[    1.510184] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
[    1.519608] usbcore: registered new interface driver usbhid
[    1.525300] usbhid: USB HID core driver
[    1.529474] sunxi-cedar 1c0e000.video-codec: sunxi cedar version 0.01alpha
[    1.536807] sunxi-cedar 1c0e000.video-codec: cedar-ve the get irq is 20
[    1.548638] debugfs: Directory '1c23c00.codec' with parent 'F1C100s Audio Codec' already present!
[    1.562557] sun4i-codec 1c23c00.codec: Codec <-> 1c23c00.codec mapping ok
[    1.578587] NET: Registered protocol family 17
[    1.583275] Key type dns_resolver registered
[    1.588662] Loading compiled-in X.509 certificates
[    1.607053] sun4i-drm soc:display-engine: bound 1e00000.display-frontend (ops 0xc073b278)
[    1.616110] sun4i-drm soc:display-engine: bound 1e60000.display-backend (ops 0xc073aab8)
[    1.625668] sun4i-drm soc:display-engine: bound 1c0c000.lcd-controller (ops 0xc0739658)
[    1.634256] sun4i-drm soc:display-engine: bound 1c0a000.tv-encoder (ops 0xc073a378)
[    1.642032] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.648633] [drm] No driver support for vblank timestamp query.
[    1.656340] [drm] Initialized sun4i-drm 1.0.0 20150629 for soc:display-engine on minor 0
[    1.665374] [drm] kms: can't enable cloning when we probably wanted to.
[    1.737113] Console: switching to colour frame buffer device 100x30
[    1.775979] sun4i-drm soc:display-engine: fb0: sun4i-drmdrmfb frame buffer device
[    1.784530] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    1.802354] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    1.809113] ALSA device list:
[    1.812215]   #0: F1C100s Audio Codec
[    1.816494] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    1.825227] cfg80211: failed to load regulatory.db
[    1.836565] unable to read id index table
[    1.840975] List of all partitions:
[    1.844663] 1f00             512 mtdblock0 
[    1.844672]  (driver?)
[    1.851280] 1f01            5632 mtdblock1 
[    1.851287]  (driver?)
[    1.857903] 1f02           65536 mtdblock2 
[    1.857908]  (driver?)
[    1.864528] 1f03           49152 mtdblock3 
[    1.864535]  (driver?)
[    1.871058] No filesystem could mount root, tried: 
[    1.871063]  squashfs
[    1.875969] 
[    1.879769] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
[    1.888107] CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.92 #1
[    1.893834] Hardware name: Allwinner suniv Family
[    1.898615] [<c010e1a8>] (unwind_backtrace) from [<c010b954>] (show_stack+0x10/0x14)
[    1.906385] [<c010b954>] (show_stack) from [<c06ee31c>] (panic+0xe8/0x2e4)
[    1.913278] [<c06ee31c>] (panic) from [<c090135c>] (mount_block_root+0x2bc/0x31c)
[    1.920760] [<c090135c>] (mount_block_root) from [<c0901568>] (prepare_namespace+0x128/0x188)
[    1.929289] [<c0901568>] (prepare_namespace) from [<c06f6154>] (kernel_init+0x8/0x108)
[    1.937204] [<c06f6154>] (kernel_init) from [<c01010e0>] (ret_from_fork+0x14/0x34)
[    1.944752] Exception stack(0xc2839fb0 to 0xc2839ff8)
[    1.949801] 9fa0:                                     00000000 00000000 00000000 00000000
[    1.957968] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    1.966130] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
[    1.972739] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2) ]---

如意如意 · 全志 SOC

多谢大佬分享，向大佬学习

如意如意 · 全志 SOC

填坑，lv_conf.h中 #define LV_TICK_CUSTOM 修改为 0
否则屏幕不会刷新。。。

如意如意 · 全志 SOC

在两位大佬的基础上更新lvgl到v7版

1、在链接时没有链接标准库，导致没有strcat，strncpy，atoi，strtok，itoa等。我不知道该怎么改，就重写了一下这些函数。

2、为减小文件体积，编译器没放在工程里，需要大家自己下载。编译器我在ubuntu下，用的gcc-arm-none-eabi-4_9-2015q3-20150921-linux.tar.bz2
在Makefile文件中更改编译器位置。
CROSS_COMPILE = 解压的路径/gcc-arm-none-eabi-4_9-2015q3/bin/arm-none-eabi-

3、在工程路径下，执行make即可编译，出现下面的信息就是成功了。
Make header information for brom booting
bootloader size= 1800
The bootloader head has been fixed

4、生成的固件在 /build/firmware.bin

5、液晶屏驱动参数我改了一下，支持RGB565

6、感谢诸位大佬的无私奉献，让我少走许多弯路，在下水平有限，哪里不对的欢迎大家批评指正

显示效果：
FluxBB bbcode 测试
工程文件下载：
https://whycan.cn/files/members/4756/lvgl_v7_f1c100s.zip

F1C100S的Keil裸机USB+LCD+PWM+GPIO工程搞定，修复GNU工具链BUG
https://whycan.cn/t_3645.html
lvgl移植到裸跑的f1c100s上
https://whycan.cn/t_1984.html

小菜说：

在大侠达克罗德放出的《F1C100S裸奔framebuffer + PWM + GPIO驱动》基础上移植LVGL。
目前已经能够在800*480的屏幕上使用32颜色深度，跑lvgl的demo例子。
但感觉速度很慢，比在linux下使用fbdev还慢。
有时间再优化。
看看能不能用DMA实现数据传输。

awfans 说：

lchjng 说：
你好，晕哥，请问楼主的那个参考程序，如何在win7的环境下用什么工具编译啊
https://whycan.cn/t_3649.html#p33367
编译软件下载: https://launchpad.net/gcc-arm-embedded/4.9/4.9-2015-q3-update
Linux 编译软件下载: gcc-arm-none-eabi-4_9-2015q3-20150921-linux.tar.bz2

编译软件可以用上面的gcc, windows/linux 版本都有,
make 在 linux自带, windows 的 msys 软件包也带 make.

如意如意 · 全志 SOC

请教诸位大佬，要将ARGB32格式改为RGB565格式，除了要将render->format改为PIXEL_FORMAT_RGB16_565，还需要做那些改动？

        //render->format = PIXEL_FORMAT_ARGB32;
	render->format = PIXEL_FORMAT_RGB16_565;

如意如意 · 全志 SOC

嗯嗯，少了PD0 PD12 两个，用于I2C获取触摸输入了。跑LVGL程序感觉没有色差啥的

如意如意 · 全志 SOC

多谢诸位相助，感谢小二大佬指点！
将 "PD0", "PD12" 从lcd_rgb666_pins中删除，将twi0_pins的引脚定义为"PD0", "PD12"，make clean 后重新编译设备树，linux内核后，屏幕显示也好使，触摸也有数据了。

                        lcd_rgb666_pins: lcd-rgb666-pins {
                                pins =  "PD1", "PD2", "PD3", "PD4",
                                       "PD5", "PD6", "PD7", "PD8", "PD9",
                                       "PD10", "PD11", "PD13", "PD14",
                                       "PD15", "PD16", "PD17", "PD18", "PD19",
                                       "PD20", "PD21";
                                function = "lcd";
                        };

	twi0_pins: twi0-pin-pd {
		pins = "PD0", "PD12";
		function = "i2c0";
	};

如意如意 · 全志 SOC

好的，我接上拉电阻试试

如意如意 · 全志 SOC

我看原理图上NS2009硬件 TWI0 SCK 接 PD0 ， TWI0SDA 接 PD12 没问题。

suniv.dtsi中PD0 PD12 已经定义为lcd_rgb666_pins，

                        lcd_rgb666_pins: lcd-rgb666-pins {
                                pins = "PD0", "PD1", "PD2", "PD3", "PD4",
                                       "PD5", "PD6", "PD7", "PD8", "PD9",
                                       "PD10", "PD11", "PD12", "PD13", "PD14",
                                       "PD15", "PD16", "PD17", "PD18", "PD19",
                                       "PD20", "PD21";
                                function = "lcd";
                        };

如意如意 · 全志 SOC

将 twi0 的引脚从 "PD0", "PD12" 改为 "PE11", "PE12" 后屏幕显示正常，不过触摸不好使，一直报错

[ 288.328130] i2c i2c-0: mv64xxx: I2C bus locked, block: 1, time_left: 0
[ 288.334689] input input0: Poll touch data failed: -110

我在研究研究

如意如意 · 全志 SOC

我对比了一下，发现这段初始化frame buffer device的时候，PD0被twi占用了，导致没有fb0。我在改改试试。
多谢流氓兔，小二大佬^_^

这是正常的

[    1.227428] sun4i-drm display-engine: bound 1e60000.display-backend (ops 0xc0739c38)
[    1.236224] sun4i-drm display-engine: bound 1c0c000.lcd-controller (ops 0xc0738f1c)
[    1.244009] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    1.250666] [drm] No driver support for vblank timestamp query.
[    1.304634] Console: switching to colour frame buffer device 60x34
[    1.328041] sun4i-drm display-engine: fb0:  frame buffer device
[    1.335169] [drm] Initialized sun4i-drm 1.0.0 20150629 for display-engine on minor 0

这是不正常的

[    1.259679] suniv-pinctrl 1c20800.pinctrl: pin PD0 already requested by 1c27000.twi; cannot claim for 1c0c000.lcd-controller
[    1.270999] suniv-pinctrl 1c20800.pinctrl: pin-96 (1c0c000.lcd-controller) status -22
[    1.278881] suniv-pinctrl 1c20800.pinctrl: could not request pin 96 (PD0) from group PD0  on device 1c20800.pinctrl
[    1.289334] sun4i-tcon 1c0c000.lcd-controller: Error applying setting, reverse things back
[    1.297629] sun4i-tcon: probe of 1c0c000.lcd-controller failed with error -22

如意如意 · 全志 SOC

dts增加了 twi0 和 pio 是不是和屏幕驱动有冲突呢？

如意如意 · 全志 SOC

问题描述：本来屏幕好使，尝试移植ns2009电阻触摸驱动后，开机uboot屏幕有显示，启动内核时，屏幕一点一点变黑，进入系统后evtest 测试触摸有数据。

FluxBB bbcode 测试

运行LVGL程序提示
Error: cannot open framebuffer device: No such file or directory

下面是移植驱动的步骤，麻烦各位大佬瞅瞅哪里步骤不对，指点一二，小弟感激不尽^_^

将ns2009.c放到drivers/input/touchscreen目录下

drivers/input/touchscreen/Makefile 增加了

obj-$(CONFIG_TOUCHSCREEN_NS2009)	+= ns2009.o

drivers/input/touchscreen/Kconfig 增加了

config TOUCHSCREEN_NS2009
	tristate "Nsiway NS2009 touchscreen"
	depends on I2C
	select INPUT_POLLDEV
	help
	  Say Y here to enable Nsiway NS2009 resistive touchscreen
	  controller support.

	  If unsure, say N.

	  To compile this driver as a module, choose M here: the
	  module will be called ns2009.

linux/arch/arm/boot/dts下suniv.dtsi增加了

           i2c0: i2c@1C27000 {
                    compatible = "allwinner,sun6i-a31-i2c";
                    reg = <0x01C27000 0x400>;
                    interrupts = <7>;
                    clocks = <&ccu CLK_BUS_I2C0>;
                    resets = <&ccu RST_BUS_I2C0>;
                    pinctrl-names = "default";
                    pinctrl-0 = <&i2c0_pins>;
                    status = "disabled";
                    #address-cells = <1>;
                    #size-cells = <0>;
            };
            i2c0_pins: i2c0 {
                    pins = "PE11", "PE12";
                    function = "i2c0";
            };

            twi0: twi@1c27000 {
			compatible = "allwinner,sun6i-a31-i2c";
			reg = <0x01c27000 0x400>;
			interrupts = <7>;
			clocks = <&ccu CLK_BUS_I2C0>;
			clock-names = "apb";
			resets = <&ccu RST_BUS_I2C0>;
			clock-frequency = <100000>;
			#address-cells = <1>;
			#size-cells = <0>;
            };

linux/arch/arm/boot/dts下suniv-f1c100s-licheepi-nano.dts 增加了

&pio {
        ts_reset_pin: ts_reset_pin@0 {
            pins = "PE9";
            function = "gpio_out";
        };
	twi0_pins: twi0-pin-pd {
		pins = "PD0", "PD12";
		function = "i2c0";
	};
	uart1_pins: uart1-pin-pa {
		pins = "PA2", "PA3";
		function = "uart1";
	};
};

&twi0 {
	pinctrl-names = "default";
	pinctrl-0 = <&twi0_pins>;
	status = "okay";
	ts: twi0@0x48 {
		compatible = "nsiway,ns2009";
		i2c-max-frequency = <100000>;
		reg = <0x48>;
		status = "okay";
	};
};

这是启动log

U-Boot SPL 2018.01-05679-g013ca457fd-dirty (Aug 02 2020 - 05:51:43)
DRAM: 64 MiB
Trying to boot from MMC1
Card did not respond to voltage select!
mmc_init: -95, time 22
spl: mmc init failed with error: -95
Trying to boot from sunxi SPI


U-Boot 2018.01-05679-g013ca457fd-dirty (Aug 02 2020 - 05:51:43 +0800) Allwinner Technology

DRAM:  64 MiB
MMC:   SUNXI SD/MMC: 0
SF: Detected w25q256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB
*** Warning - bad CRC, using default environment

Setting up a 480x272 lcd console (overscan 0x0)
In:    serial@1c25000
Out:   serial@1c25000
Err:   serial@1c25000
Net:   No ethernet found.
starting USB...
No controllers found
Hit any key to stop autoboot:  0 
SF: Detected w25q256 with page size 256 Bytes, erase size 4 KiB, total 32 MiB
device 0 offset 0x100000, size 0x4000
SF: 16384 bytes @ 0x100000 Read: OK
device 0 offset 0x110000, size 0x400000
SF: 4194304 bytes @ 0x110000 Read: OK
## Flattened Device Tree blob at 80c00000
   Booting using the fdt blob at 0x80c00000
   Loading Device Tree to 816fa000, end 816ff2ac ... OK

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.15.0-rc8-licheepi-nano+ (root@kali) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #9 Wed Aug 19 11:27:29 CST 2020
[    0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[    0.000000] CPU: VIVT data cache, VIVT instruction cache
[    0.000000] OF: fdt: Machine model: Lichee Pi Nano
[    0.000000] Memory policy: Data cache writeback
[    0.000000] random: fast init done
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16002
[    0.000000] Kernel command line: console=ttyS0,115200 panic=5 rootwait root=/dev/mtdblock3 rw rootfstype=jffs2 mem=63M vt.global_cursor_default=0
[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Memory: 54132K/64512K available (6144K kernel code, 239K rwdata, 1440K rodata, 1024K init, 249K bss, 10380K reserved, 0K cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
[    0.000000]     vmalloc : 0xc4000000 - 0xff800000   ( 952 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xc3f00000   (  63 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0x(ptrval) - 0x(ptrval)   (7136 kB)
[    0.000000]       .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
[    0.000000]       .data : 0x(ptrval) - 0x(ptrval)   ( 240 kB)
[    0.000000]        .bss : 0x(ptrval) - 0x(ptrval)   ( 250 kB)
[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000046] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[    0.000112] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.000672] Console: colour dummy device 80x30
[    0.000763] Calibrating delay loop... 203.16 BogoMIPS (lpj=1015808)
[    0.070232] pid_max: default: 32768 minimum: 301
[    0.070547] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.070586] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.072030] CPU: Testing write buffer coherency: ok
[    0.073727] Setting up static identity map for 0x80100000 - 0x80100058
[    0.076270] devtmpfs: initialized
[    0.083570] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.083628] futex hash table entries: 256 (order: -1, 3072 bytes)
[    0.083891] pinctrl core: initialized pinctrl subsystem
[    0.085894] NET: Registered protocol family 16
[    0.087458] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.089228] cpuidle: using governor menu
[    0.115483] SCSI subsystem initialized
[    0.115808] usbcore: registered new interface driver usbfs
[    0.115950] usbcore: registered new interface driver hub
[    0.116159] usbcore: registered new device driver usb
[    0.116601] pps_core: LinuxPPS API ver. 1 registered
[    0.116625] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    0.116685] PTP clock support registered
[    0.117166] Advanced Linux Sound Architecture Driver Initialized.
[    0.118785] clocksource: Switched to clocksource timer
[    0.145414] NET: Registered protocol family 2
[    0.146831] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[    0.146903] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[    0.146952] TCP: Hash tables configured (established 1024 bind 1024)
[    0.147231] UDP hash table entries: 256 (order: 0, 4096 bytes)
[    0.147283] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[    0.147750] NET: Registered protocol family 1
[    0.149091] RPC: Registered named UNIX socket transport module.
[    0.149133] RPC: Registered udp transport module.
[    0.149149] RPC: Registered tcp transport module.
[    0.149165] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.151493] NetWinder Floating Point Emulator V0.97 (double precision)
[    0.153315] Initialise system trusted keyrings
[    0.153867] workingset: timestamp_bits=30 max_order=14 bucket_order=0
[    0.171364] NFS: Registering the id_resolver key type
[    0.171443] Key type id_resolver registered
[    0.171465] Key type id_legacy registered
[    0.171580] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    0.186212] Key type asymmetric registered
[    0.186254] Asymmetric key parser 'x509' registered
[    0.186465] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251)
[    0.186497] io scheduler noop registered
[    0.186515] io scheduler deadline registered
[    0.187310] io scheduler cfq registered (default)
[    0.187343] io scheduler mq-deadline registered
[    0.187362] io scheduler kyber registered
[    0.188500] sun4i-usb-phy 1c13400.phy: Couldn't request ID GPIO
[    0.198197] suniv-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[    0.370515] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    0.377175] console [ttyS0] disabled
[    0.397427] 1c25000.serial: ttyS0 at MMIO 0x1c25000 (irq = 24, base_baud = 6250000) is a 16550A
[    0.873969] console [ttyS0] enabled
[    0.884796] panel-simple panel: panel supply power not found, using dummy regulator
[    0.923334] brd: module loaded
[    0.945187] loop: module loaded
[    0.949281] SCSI Media Changer driver v0.25 
[    0.956943] m25p80 spi0.0: found w25q256, expected w25q128
[    0.962765] m25p80 spi0.0: w25q256 (32768 Kbytes)
[    0.968433] 4 ofpart partitions found on MTD device spi0.0
[    0.974040] Creating 4 MTD partitions on "spi0.0":
[    0.978898] 0x000000000000-0x000000100000 : "u-boot"
[    0.987799] rfd_ftl: no RFD magic found in 'u-boot'
[    0.994981] ftl_cs: FTL header not found.
[    1.000713] 0x000000100000-0x000000110000 : "dtb"
[    1.006713] ftl_cs: FTL header not found.
[    1.012357] 0x000000110000-0x000000510000 : "kernel"
[    1.028545] rfd_ftl: no RFD magic found in 'kernel'
[    1.035754] ftl_cs: FTL header not found.
[    1.041453] 0x000000510000-0x000001000000 : "rootfs"
[    1.074700] rfd_ftl: no RFD magic found in 'rootfs'
[    1.081911] ftl_cs: FTL header not found.
[    1.088050] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    1.094706] ehci-platform: EHCI generic platform driver
[    1.100315] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    1.106536] ohci-platform: OHCI generic platform driver
[    1.112234] usbcore: registered new interface driver usb-storage
[    1.119248] udc-core: couldn't find an available UDC - added [g_cdc] to list of pending drivers
[    1.128303] i2c /dev entries driver
[    1.134632] input: ns2009_ts as /devices/platform/soc/1c27000.twi/i2c-0/0-0048/input/input0
[    1.198904] sunxi-mmc 1c0f000.mmc: base:0xdca4e2c9 irq:19
[    1.206388] usbcore: registered new interface driver usbhid
[    1.212088] usbhid: USB HID core driver
[    1.234775] NET: Registered protocol family 17
[    1.239587] Key type dns_resolver registered
[    1.246229] Loading compiled-in X.509 certificates
[    1.259679] suniv-pinctrl 1c20800.pinctrl: pin PD0 already requested by 1c27000.twi; cannot claim for 1c0c000.lcd-controller
[    1.270999] suniv-pinctrl 1c20800.pinctrl: pin-96 (1c0c000.lcd-controller) status -22
[    1.278881] suniv-pinctrl 1c20800.pinctrl: could not request pin 96 (PD0) from group PD0  on device 1c20800.pinctrl
[    1.289334] sun4i-tcon 1c0c000.lcd-controller: Error applying setting, reverse things back
[    1.297629] sun4i-tcon: probe of 1c0c000.lcd-controller failed with error -22
[    1.306354] usb_phy_generic usb_phy_generic.0.auto: usb_phy_generic.0.auto supply vcc not found, using dummy regulator
[    1.318239] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[    1.324165] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 1
[    1.334445] hub 1-0:1.0: USB hub found
[    1.338961] hub 1-0:1.0: 1 port detected
[    1.345821] using random self ethernet address
[    1.350409] using random host ethernet address
[    1.356619] usb0: HOST MAC 72:d3:b8:20:13:73
[    1.361146] usb0: MAC 8a:c6:a6:dc:9e:63
[    1.365089] g_cdc gadget: CDC Composite Gadget, version: King Kamehameha Day 2008
[    1.372650] g_cdc gadget: g_cdc ready
[    1.377875] cfg80211: Loading compiled-in X.509 certificates for regulatory database
[    1.395405] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[    1.402223] vcc3v3: disabling
[    1.405202] ALSA device list:
[    1.408167]   #0: Loopback 1
[    1.411932] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[    1.420633] cfg80211: failed to load regulatory.db
[    1.500288] random: crng init done
[    3.005526] VFS: Mounted root (jffs2 filesystem) on device 31:3.
[    3.013471] devtmpfs: mounted
[    3.020982] Freeing unused kernel memory: 1024K
Starting logging: OK
Starting mdev...
modprobe: can't change directory to '/lib/modules': No such file or directory
Initializing random number generator... done.
Starting network: OK

Welcome to King

如意如意 · 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2

感谢大佬分享

如意如意 · 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2

我在论坛帖子的滋养下，从零基础小白到现在对嵌入式linux移植编译+LVGL移植+应用开发一套流程略知一二的入门级选手。在此感谢哇酷网各位大佬的相助，众多坛友的无私奉献!

我是用的是Clion配置工程，修改CMakeLists.txt文件的编译选项，用Clion编译的。（安装完Clion就保存快照，试用30天快到了，就恢复一下）

现在将LVGL_v7添加中文支持遇到的问题分享一下，希望大家能跳过这些坑。
本人水平有限，有啥错误，欢迎批评指正，大家共同进步！

一、LVGL内置字库显示
关于LVGL内置字库的配置使用，官方文档介绍的比较清楚，就不再赘述。其中有一个中文的字库LV_FONT_SIMSUN_16_CJK，不过字比较少。下面是七月中旬最先版v7的官方英文文档，接口有很大变动，如果用最新源码，参考之前v6的教程就会各种找不到属性方法。
https://whycan.cn/files/members/4756/LVGL.pdf

二、显示自己生成的内部字库
下面是阿里大佬开发的字库生成工具，使用很简单
https://whycan.cn/files/members/4756/LvglFontTool_V0_3.rar

FluxBB bbcode 测试

还有一步：6、保存为myFont.c文件

将字库添加到工程需要一下几步：
1、将myFont.c另存为UTF-8编码格式，并复制到 lvgl/src/lv_font/ 下。
2、在CMakeLists.txt中 lvgl/src/lv_font/lv_font_montserrat_48.c 附近添加lvgl/src/lv_font/myFont.c。
3、在 main.c 文件中声明LV_FONT_DECLARE(myFont);（也可以按照官方改lv_conf.h)。
4、在main函数前添加测试函数

void lv_font_test()
{
    LV_FONT_DECLARE(myFont);//放这里也行
    lv_obj_t* label1 = lv_label_create(lv_scr_act(), NULL);
    lv_obj_set_style_local_text_font(label1, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &myFont_6763);
    lv_obj_set_pos(label1, 20, 20);
    lv_label_set_text(label1, "Hello,你好,哇酷网!");

}

5、在主函数while前添加语句调用lv_font_test();
6、编译后，查看 file yourName
FluxBB bbcode 测试
7、rz -y 传到板子上运行（要chmod 777 yourName）

二、显示外部bin字库
外部字库比内部字库麻烦一点。
以下为详细步骤：
1、在字库生成工具右下角类型选择外部bin字库，转换保存会生成myFont.c myFont.bin两个文件。
2、将myFont.bin文件传到板子/root/目录下，并且chmod 777 myFont.bin。
3、将myFongt.c复制到工程 lvgl/src/lv_font/ 下，并修改以下内容

//添加头文件
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

//取消这行注释
static uint8_t __g_font_buf[322];//如bin文件存在SPI FLASH可使用此buff

//修改函数，就是读取bin文件
static uint8_t *__user_font_getdata(int offset, int size){
    //如字模保存在SPI FLASH, SPIFLASH_Read(__g_font_buf,offset,size);
    //如字模已加载到SDRAM,直接返回偏移地址即可如:return (uint8_t*)(sdram_fontddr+offset);
    uint32_t br;
    FILE *fp = NULL;
    fp = fopen("./myFont.bin", "rb");
    if(!fp){
        fprintf(stderr, "can't open file myFont.bin");
        exit(1);
    }
    fseek(fp, offset, SEEK_SET);
    fread(__g_font_buf, (uint32_t)size, 1, fp);
    fclose(fp);
    return __g_font_buf;
}

4、在CMakeLists.txt中 lvgl/src/lv_font/lv_font_montserrat_48.c 附近添加lvgl/src/lv_font/myFont.c。
5、在 main.c 文件中声明LV_FONT_DECLARE(myFont);（也可以按照官方改lv_conf.h)。
6、在main函数前添加测试函数

void lv_font_test()
{
    LV_FONT_DECLARE(myFont);//放这里也行
    lv_obj_t* label1 = lv_label_create(lv_scr_act(), NULL);
    lv_obj_set_style_local_text_font(label1, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &myFont_6763);
    lv_obj_set_pos(label1, 20, 20);
    lv_label_set_text(label1, "Hello,你好,哇酷网!");

}

7、在主函数while前添加语句调用lv_font_test();
8、编译，传到板子运行。
FluxBB bbcode 测试

总结：内部字库在汉字过多或者过大时，编译会报错，切显示汉字错位，若要使用GB2312和所有汉字时，最好使用外bin字库。

如意如意 · 全志 SOC

James 说：

widora 马上出R3了, 修复了R2这个NS2009中断的问题, 到时候可以用 TSC2007驱动.

哈哈，我说群里大家为啥天天催R3，原来如此

如意如意 · 全志 SOC

重新看了一遍这个帖子
https://whycan.cn/t_4223.html

James 说：

Tiny200做的很不错，可惜官方没有SPINAND的固件支持，故弄了超整合版本（坛子里自己的都有，非歪朵拉官方）
1.整合4.19.117内核，USB、显示、code（录音我试了ok）
2.支持SPINAND，SD卡启动，DMA SPI支持，双线模式
3.自动挂载U盘，SD卡等外设
4.整合python3+pyqt5，一起夸平台，卡的飞起（逃
5.整合设备树拓展功能，可以动态添加PE上SPI，I2C，串口等修改功能管脚和驱动状态
6.ns2009驱动也整合了，滤波可能要自己调调问题不大
7.网络配置啥的我都没管，懒。。。
顺便吐槽下坑网的上传，居然没法用，总之还是比较完整的了，太懒了就不写了，空了更新。
在吐槽下tiny200，那个boot0按键更本没用，USBID不知道为啥要去掉，触摸的GPIO没啥用阿，ns2009这破玩意，就不是给人用的。
链接: https://pan.baidu.com/s/1uESxgv_yr5eCsgW9tMNN_Q 提取码: cpat 复制这段内容后打开百度网盘手机App，操作更方便哦

原来大佬已经移植过ns2009驱动了..........
握鼠标的手，微微颤抖

好吧，只能自己尝试一下了。多谢小二大佬热心答疑^_^!

如意如意 · 全志 SOC

James 说：

r2版本ns2009接的f1c200s不是中断口，会麻烦一些，要么改驱动，要么飞线。

小二大佬，之前板子上是nada flash ，我用论坛大佬的F1C200s_UART1_TF_IMAGE，TF卡镜像跑QT5的例子时电阻触摸好使，就是有点偏差。当时没有跳线。

后来感觉nada flash太难用，不适合新手，就换成32m 的nor flash了。我下了几个论坛里的nor flash 镜像，发现也没有/dev/input, 可能大家没移植电阻触摸驱动吧（为什么感觉大家的触摸屏都好使的样子....）

要飞线的话应该怎么飞呢？论坛11页逛好多遍了，就找到荔枝派none板子的一个飞线帖子。
咱们论坛有相关的帖子么？

原谅小白刚摸到嵌入式linux的门槛....

如意如意 · 全志 SOC

James 说：

颜色是不是错了官网上看是墨绿色的
分辨率也有问题

这个Demo原先是800x400的好像，我改成480x272，显示的就是这个效果。

如意如意 · 全志 SOC

James 说：

电阻触摸? tiny200 第一版?
1. make menuconfig 开启 tsc2007,
2. dts 使能 i2c 和 tsc2007
才会出现 /dev/input/event* 设备

小二大佬，我做了如下修改还是不好使
1、make menuconfig 开启 tsc2007

FluxBB bbcode 测试

2、在suniv-f1c100s-licheepi-nano.dts中添加下面代码（看荔枝派Zero这样写的，也不知对不对）
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>

&i2c0 {
status = "okay";

ns2009: ns2009@48 {
compatible = "nsiway,ns2009";
reg = <0x48>;
};
};

&pio {
ts_reset_pin: ts_reset_pin@0 {
pins = "PE9";
function = "gpio_out";
};
};

3、编译设备树报错，按照官方教程在suniv.dtsi中添加下面代码，（当时编译系统的时候，看到是电容触摸适配就跳过了这一步）
// 添加在soc节点下
// 此处添加的属性与配置，来自于查找用户手册以及兼容设备

i2c0: i2c@1C27000 {
compatible = "allwinner,sun6i-a31-i2c";
reg = <0x01C27000 0x400>;
interrupts = <7>;
clocks = <&ccu CLK_BUS_I2C0>;
resets = <&ccu RST_BUS_I2C0>;
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins>;
status = "disabled";
#address-cells = <1>;
#size-cells = <0>;
};

// 在pio节点下，添加i2c引脚定义

i2c0_pins: i2c0 {
pins = "PE11", "PE12";
function = "i2c0";
};

4、重新打包镜像文件，烧录还是没有/dev/input文件夹

如意如意 · 全志 SOC

用的r2版，多谢回复，我试一试

如意如意 · 全志 SOC

按照官方步骤编译完系统，然后编译出LittleVGL的Demo，在F1C200s上跑可以显示画面，但触摸不好使。
FluxBB bbcode 测试

FluxBB bbcode 测试

用的是4.3寸电阻触摸屏
提示unable open evdev interface:: No such file or directory
没有/dev/input/event0
连/dev/input文件夹都没有

内核配置已经勾选了Device Drivers->Input device support->Event interface && Event debugging
根文件系统也开启了tslib Target packages -> Libraries -> Hardware handling -> tslib
请教各位大佬，是我内核还有什么没有配置，还是根文件系统的问题呢？电阻触摸屏驱动是自带的还是要另外移植？
多谢诸位指点！

如意如意 · 全志 SOC

可能是我把配置改来改去改错了，重新来一遍就好了。

如意如意 · 全志 SOC

多谢smartcar！uboot的bootargs参数好像是默认的，没有改
console=ttyS0,115200 panic=5 rootwait root=/dev/mtdblock3 rw rootfstype=jffs2

如意如意 · 全志 SOC

这是烧写TF卡时的更改：
FluxBB bbcode 测试

这是更改后系统运行后的显示：
FluxBB bbcode 测试

若不将
console::respawn:/sbin/getty -L console 0 vt100 # GENERIC_SERIAL
替换为
ttyS1::respawn:/sbin/getty -L ttyS1 115200 vt100 # GENERIC_SERIAL
的话，系统运行后有登录提示，显示如下：
FluxBB bbcode 测试

但是电脑没有串口，没法用putty连接登录，请问各位大佬，是我的配置出错了么？
刚接触嵌入式linux不久，提出这种小白问题，请大家不要介意:lol:

如意如意 · 全志 SOC

哦哦，多谢回复，可能是我发帖的时候是是手打的，不是粘贴复制，明天我上传一下照片

如意如意 · 全志 SOC

请问各位朋友们，我的板子是TINY200r2，我再TF卡中烧录镜像，linux启动后没有串口，并且一直输出ttyS: tty_port_close_start:tty-> count= 1 portcount= 2

我是参考论坛大神的帖子，使用 write_to_TF.sh烧写TF卡的
烧写TF卡时，将rootfs/media/rootfs/etc/inittab文件的
console::respawn:/abin/getty -L cinsole 0 vt100
改为
ttyS1::respawn:/abin/getty -L ttyS1 115200 vt100

请问，是我在哪一步的配置出了问题么？

Starting logging：OK
Starting network：OK
ttyS: tty_port_close_start:tty-> count= 1 portcount= 2
ttyS: tty_port_close_start:tty-> count= 1 portcount= 2
ttyS: tty_port_close_start:tty-> count= 1 portcount= 2
ttyS: tty_port_close_start:tty-> count= 1 portcount= 2

如意如意 · 全志 SOC

我也是同样的现象，用的QT5创建窗口例子，运行白屏。后来换了个QT5例子，有按键或者标签的就可以正常显示了。

如意如意 · 全志 SOC

请问迪卡大神，没有检测到SPI Flash是怎么回事呢？第一次接屏幕的时候排线不匹配，莫非我把Flash烧坏了？

如意如意 · Php/Nodejs/Web/HTML5/Javascript/微信开发/Python

我用的命令一般是：
pyinstaller -w -F my.py
-w 不弹终端窗口
-F 强制打包为一个独立的exe文件，将依赖也八宝进去，这样就可以将exe文件移到别的电脑上使用了。

如意如意 · 全志 SOC

楼主好厉害，谢谢楼主无私分享，对我有很大帮助

如意如意 · 全志 SOC

板子刚到手，一头雾水，前来学习，打算按照步骤来一遍

如意如意 · 全志 SOC

太厉害了，楼主，小白刚入门感觉一头雾水，先尝试点亮屏幕再说吧

如意如意 · 全志 SOC

买的Widora fc200s到了，先下载个固件试试效果. 感谢楼主分享，正是我需要的，下载下来学习一下。

WhyCan Forum(哇酷开发者社区)

#1 Re: 全志 SOC » 发帖-记录一下F1C200S菜鸟入坑记 » 2021-07-08 09:30:21

#2 Re: 全志 SOC » 请问i2cdetect这个命令和设备树中的节点有没有关系 » 2021-06-23 13:31:45

#3 Re: 全志 SOC » 请教 buildroot-tiny200 (F1C100/200s) 开发包，只要勾选ffmpeg，文件系统就出问题 » 2021-06-11 18:07:20

#4 Re: 全志 SOC » 请教 buildroot-tiny200 (F1C100/200s) 开发包，只要勾选ffmpeg，文件系统就出问题 » 2021-06-11 18:00:34

#5 全志 SOC » 请教 buildroot-tiny200 (F1C100/200s) 开发包，只要勾选ffmpeg，文件系统就出问题 » 2021-06-11 17:09:39

#6 Re: 全志 SOC » 分享F1C100S的TVD源码，TVIN0接CVBS摄像头采集数据显示到LCD屏 » 2021-06-07 19:36:27

#7 Re: 全志 SOC » 分享裸奔lvgl_v7_f1c100s工程 » 2020-09-17 08:36:57

#8 全志 SOC » 分享裸奔lvgl_v7_f1c100s工程 » 2020-09-10 15:37:10

#9 Re: 全志 SOC » F1C100S裸奔framebuffer+PWM+GPIO驱动 » 2020-09-04 08:36:33

#10 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-22 14:17:13

#11 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-22 11:10:34

#12 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 13:44:33

#13 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 13:43:52

#14 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 13:28:42

#15 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 12:56:22

#16 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-19 18:44:39

#17 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-19 15:03:26

#18 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » LvglFontTool字体工具更新V0.4版本 » 2020-08-18 08:48:48

#19 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » 分享 LVGL_7显示中文字库，内部+外部 » 2020-08-12 12:04:03

#20 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 16:03:28

#21 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 15:48:46

#22 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 14:52:45

#23 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 14:43:07

#24 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 14:40:15

#25 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 11:55:29

#26 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 10:05:24

#27 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-08-05 11:55:36

#28 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-23 13:34:11

#29 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-23 09:05:43

#30 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-22 20:51:19

#31 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-22 18:26:36

#32 Re: 全志 SOC » uboot的logo出现之前，屏幕白屏如何解决？ » 2020-07-22 16:57:06

#33 Re: 全志 SOC » DKTool windows下F1C200S图形化烧写工具(文件都已过期，请不要下载) » 2020-07-16 14:59:35

#34 Re: Php/Nodejs/Web/HTML5/Javascript/微信开发/Python » Python 发布应用程序, 将脚本转化为可执行程序 » 2020-07-10 18:02:59

#35 Re: 全志 SOC » 自制F1C100S核心板 (开源PCB) » 2020-07-10 17:19:31

#36 Re: 全志 SOC » 尝试从零构建F1C100s开发环境 » 2020-07-10 16:55:09

#37 Re: 全志 SOC » F1C100S的Keil裸机USB+LCD+PWM+GPIO工程搞定，修复GNU工具链BUG » 2020-07-10 16:30:38

#38 Re: 全志 SOC » 分享一个 5寸的 800x480 的 f1c100s 固件, 感谢 @xm1994, 调试串口UART0 (PB8/PB9) » 2020-07-10 16:27:03

页脚

WhyCan Forum(哇酷开发者社区)

#1 Re: 全志 SOC » 发帖-记录一下F1C200S菜鸟入坑记 » 2021-07-08 09:30:21

#2 Re: 全志 SOC » 请问i2cdetect这个命令和设备树中的节点有没有关系 » 2021-06-23 13:31:45

#3 Re: 全志 SOC » 请教 buildroot-tiny200 (F1C100/200s) 开发包，只要勾选ffmpeg，文件系统就出问题 » 2021-06-11 18:07:20

#4 Re: 全志 SOC » 请教 buildroot-tiny200 (F1C100/200s) 开发包，只要勾选ffmpeg，文件系统就出问题 » 2021-06-11 18:00:34

#5 全志 SOC » 请教 buildroot-tiny200 (F1C100/200s) 开发包，只要勾选ffmpeg，文件系统就出问题 » 2021-06-11 17:09:39

#6 Re: 全志 SOC » 分享F1C100S的TVD源码，TVIN0接CVBS摄像头采集数据显示到LCD屏 » 2021-06-07 19:36:27

#7 Re: 全志 SOC » 分享 裸奔lvgl_v7_f1c100s工程 » 2020-09-17 08:36:57

#8 全志 SOC » 分享 裸奔lvgl_v7_f1c100s工程 » 2020-09-10 15:37:10

#9 Re: 全志 SOC » F1C100S裸奔framebuffer+PWM+GPIO驱动 » 2020-09-04 08:36:33

#10 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-22 14:17:13

#11 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-22 11:10:34

#12 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 13:44:33

#13 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 13:43:52

#14 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 13:28:42

#15 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-20 12:56:22

#16 Re: 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-19 18:44:39

#17 全志 SOC » 移植NS2009电阻触摸屏驱动后，触摸有数据，屏幕不显示 » 2020-08-19 15:03:26

#18 Re: 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » LvglFontTool字体工具更新V0.4版本 » 2020-08-18 08:48:48

#19 计算机图形/GUI/RTOS/FileSystem/OpenGL/DirectX/SDL2 » 分享 LVGL_7显示中文字库，内部+外部 » 2020-08-12 12:04:03

#20 Re: 全志 SOC » 求助 系统没有/dev/input文件夹 » 2020-08-06 16:03:28

#21 Re: 全志 SOC » 求助 系统没有/dev/input文件夹 » 2020-08-06 15:48:46

#22 Re: 全志 SOC » 求助 系统没有/dev/input文件夹 » 2020-08-06 14:52:45

#23 Re: 全志 SOC » 求助 系统没有/dev/input文件夹 » 2020-08-06 14:43:07

#24 Re: 全志 SOC » 求助 系统没有/dev/input文件夹 » 2020-08-06 14:40:15

#25 Re: 全志 SOC » 求助 系统没有/dev/input文件夹 » 2020-08-06 11:55:29

#26 全志 SOC » 求助 系统没有/dev/input文件夹 » 2020-08-06 10:05:24

#27 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-08-05 11:55:36

#28 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-23 13:34:11

#29 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-23 09:05:43

#30 Re: 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-22 20:51:19

#31 全志 SOC » 求助 linux启动后无串口ttyS: tty_port_close_start:tty-> count= 1 portcount= 2 » 2020-07-22 18:26:36

#32 Re: 全志 SOC » uboot的logo出现之前，屏幕白屏如何解决？ » 2020-07-22 16:57:06

#33 Re: 全志 SOC » DKTool windows下F1C200S图形化烧写工具(文件都已过期，请不要下载) » 2020-07-16 14:59:35

#34 Re: Php/Nodejs/Web/HTML5/Javascript/微信开发/Python » Python 发布应用程序, 将脚本转化为可执行程序 » 2020-07-10 18:02:59

#35 Re: 全志 SOC » 自制F1C100S核心板 (开源PCB) » 2020-07-10 17:19:31

#36 Re: 全志 SOC » 尝试从零构建F1C100s开发环境 » 2020-07-10 16:55:09

#37 Re: 全志 SOC » F1C100S的Keil裸机USB+LCD+PWM+GPIO工程搞定，修复GNU工具链BUG » 2020-07-10 16:30:38

#38 Re: 全志 SOC » 分享一个 5寸的 800x480 的 f1c100s 固件, 感谢 @xm1994, 调试串口UART0 (PB8/PB9) » 2020-07-10 16:27:03

页脚

#7 Re: 全志 SOC » 分享裸奔lvgl_v7_f1c100s工程 » 2020-09-17 08:36:57

#8 全志 SOC » 分享裸奔lvgl_v7_f1c100s工程 » 2020-09-10 15:37:10

#20 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 16:03:28

#21 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 15:48:46

#22 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 14:52:45

#23 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 14:43:07

#24 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 14:40:15

#25 Re: 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 11:55:29

#26 全志 SOC » 求助系统没有/dev/input文件夹 » 2020-08-06 10:05:24