❶ 有關rt-thread的編程語言，請大神指教~
我覺得有兩種可能：
1. 存放結構體內容的空間的首位元組地址
2. 結構體的各成員均有各自的地址，這些地址是放在一塊連續的內存中，結構體的指針存放的是這塊連續的內存的首位元組地址。
其實吧,對於這個結構體指針裡面的具體內容不是那麼重要,只要了解這種指針怎麼用就行了,希望採納
❷ rt thread 文件系統能同時讀寫多個文件嗎
當然可以，同時打開多個文件讀取或寫入都是ok的，無論是FAT文件系統還是UFFS文件系統共，可以寫個軟體測試一下
稍後我寫個軟體測試一下，然後再貼出結果
\ | /
- RT - Thread Operating System
/ | \ 1.2.0 build Aug 23 2016
2006 - 2013 Copyright by rt-thread team
----------------------------------------
<boot> Booting...
<boot> ----------- sys info ------------
<boot> rom = 512 KB
<boot> ram = 64 KB @0x20000000
<boot> xram = 512 KB @0x68000000
<boot> heap = 512 KB @0x68000000
<boot> freq = 72 Mhz
<boot> ----------- app info ------------
<boot> bin = 161 KB @0x08003000
<boot> mem = 45 KB (static req)
<boot> ............................[PASS]
----------------------------------------
<xram> Testing...
<xram> 16 bit
<xram> 512 KB OK
<xram> ............................[PASS]
----------------------------------------
<SPI> Testing...
<SPI> Finding Next...
<SPI> ID = 00BF2541
<i2c> Configuration...
<i2c> ............................[PASS]
----------------------------------------
<cat9555> Testing...
<cat9555> EXIO0 @0x40
<cat9555> [cfg = 0x00c0]
init OK!
<cat9555> ........................[PASS]
----------------------------------------
<Nand> Testing...
<Nand> ID = 2C,D3,90,A6,64
<Nand> Type = 1024M
<Nand> ...........................[PASS]
----------------------------------------
<Nor> Testing...
<Nor> ID = 0001,227E,2221,2201
<Nor> ...........................[PASS]
----------------------------------------
<CH374T> Testing...
<CH374T> Detect OK
<CH374T> LibInit OK
<CH374T> .........................[PASS]
----------------------------------------
<RTC> Testing...
<RTC> External Reset occurred
<RTC> No need to configure RTC
<RTC> ............................[PASS]
----------------------------------------
<wm89xx> Testing...
<wm89xx> Find chip
<wm89xx> .........................[PASS]
----------------------------------------
<FileSystem> Init...
<FileSystem> Nor FS initialized!
<FileSystem> ....................[PASS]
----------------------------------------
os : system memory alloc 1120 bytes
flsh: UFFS consume spare data size 18
os : system memory alloc 41360 bytes
os : system memory alloc 6288 bytes
os : system memory alloc 65536 bytes
tree: found bad block 412
tree: DIR 1, FILE 21, DATA 0
<FileSystem> Nand FS initialized!
<FileSystem> .....................[PASS]
----------------------------------------
<DSP> Testing...
<DSP> ...........................[PASS]
----------------------------------------
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
>>Write /dev/FILE0.TXT ok
>>Write /dev/FILE1.TXT ok
>>Write /dev/FILE2.TXT ok
>>Write /dev/FILE3.TXT ok
finsh>>
finsh>>ls("/dev/")
Directory /dev/:
log <DIR>
devTst 4
NAND_DEMO 4
info_index 26
LOG.TXT 14
TABLE.DYB 35032
list_index 120
FILE0.TXT 100
FILE1.TXT 100
FILE2.TXT 100
FILE3.TXT 100
0, 0x00000000
finsh>>cat("/dev/FILE0.TXT")
0, 0x00000000
finsh>>
如果需要代碼可以再貼出來
❸ 如何在rt-thread上開發應用程序
RT-Thread/GUI是專為RT-Thread操作系統開發的，並在相應的地方採用了RT-Thread特有的功能，它是一款幾乎從零代碼開始編寫的，擁有獨立知識產權的圖形界面（不包括JPEG、PNG等圖形庫部分）。在RT-Thread許可證的條款下，能夠免費的在商業產品中使
❹ rt-thread是否是免費的
RT-Thread實時操作系統遵循GPLv2+許可證，實時操作系統內核及所有開源組件可以免費在商業產品中使用，不需要公布應用程序源碼，沒有潛在商業風險。
放心大膽的用吧 我覺得比freertos還要好,又是國產的.
❺ rt-thread支持的cpu列表
rt-thread 支持的Cpu列表：
支持所有內核的浮點和定點；
支持ISO 26262 ASIL-D；
支持TriCore系列MCAL驅動，包括CAN、CANFD、LIN、SPI、Watchdog等；
支持多核特性的RT-Thread版本，同時延續RT-Thread易用的API；
支持GNU GCC工具鏈（及HighTec集成開發環境），TASKING工具鏈（及ADS集成開發環境）。