我使用的是beaglebonebsp更改，只把串口msh串口改成uart0,还有HEAP_BEGIN 设置成为 (void*)0x88000000
它不进main线程，msh也没有运行，调试代码如下。
OK335X# mmcinfoDevice: OMAP SD/MMCManufacturer ID: 0OEM: 3432Name: SD16GTran Speed: 25000000Rd Block Len: 512SD version 2.0High Capacity: YesCapacity: 14.9 GiBBus Width: 4-bitOK335X# fatload mmc 0 0x80200000 rtthread.binreading rtthread.bin196308 bytes readOK335X# go 0x80200000## Starting application at 0x80200000 ... \ | /- RT - Thread Operating System / | \ 4.0.3 build Jan 14 2021 2006 - 2021 Copyright by rt-thread teamstart scheduler: max priority 0x20main:2048,10malloc size 128thread (NULL) take sem:heap, which value is: 1thread (NULL) releases sem:heap, which value is: 0allocate memory at 0x8800000c, size: 140malloc size 2048thread (NULL) take sem:heap, which value is: 1thread (NULL) releases sem:heap, which value is: 0allocate memory at 0x88000098, size: 2060startup a thread:main with priority:10thread resume: maininsert thread[main], the priority: 10startup a thread:tidle0 with priority:31thread resume: tidle0insert thread[tidle0], the priority: 31remove thread[main], the priority: 10
meiyou o