MDK539.EXE Keil PSN and License

Please note i want a free edition of compiler probably the armclang compiler to test the builds. Please suggest how to get one single license. 

Thanks, with this compiler i'm able  to compile. However, i got an error while building simple HelloWorld C program.

.\firstproject.sct(7): error: L6236E: No section matches selector - no section to be FIRST/LAST.

Scatter file generated by uVision is as below,

; *************************************************************
; *** Scatter-Loading Description File generated by uVision ***
; *************************************************************

LR_IROM1 0x00400000 0x00200000 { ; load region size_region
ER_IROM1 0x00400000 0x00200000 { ; load address = execution address
*.o (RESET, +First)
*(InRoot$$Sections)
.ANY (+RO)
.ANY (+XO)
}
RW_IRAM1 0x20400000 0x00018000 { ; RW data
.ANY (+RW +ZI)
}
}

The error is induced by this line in the scatter file:

*.o (RESET, +First)

Have you included the Device startup code from the CMSIS Pack? This should set the Vector table at this location.

Alternatively, simply comment this line out (place semi-colon ";" at start of line).

No, i havn't included CMSIS pack, which i don't want to. 

Yes, i commented the line but since its auto generated every time it creates new and not taking the modified one.

In Target Options > Linker, deselect "Use Memory Layout from Target Dialog", and then specify your own scatter file.

Hi Ronan,

I created a new uvision project and included CMSIS, core and startup file, and also selected IO for stdio.h to ITM. 

Added a simple Helloworld print c file. While compiling it throws this error,

Build started: Project: Hello
*** Using Compiler 'V6.21', folder: 'C:\Keil_v5\ARM\ARMCLANG\Bin'
Build target 'Target 1'
main.c(3): warning: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
3 | int main()
| ^
| void
main.c(7): warning: no newline at end of file [-Wnewline-eof]
7 | }
| ^
2 warnings generated.
compiling main.c...
C:/Users/xyz/AppData/Local/arm/packs/Keil/ARM_Compiler/1.7.2/Source/retarget_io.c(409): warning: invalid UTF-8 in comment [-Winvalid-utf8]
409 | \return The return value is <96>1 if an error occurs.
| ^
C:/Users/xyz/AppData/Local/arm/packs/Keil/ARM_Compiler/1.7.2/Source/retarget_io.c(516): warning: unsafe pointer arithmetic [-Wunsafe-buffer-usage]
516 | ch = *buf++;
| ^~~
2 warnings generated.
compiling retarget_io.c...
compiling system_ARMCM7.c...
compiling startup_ARMCM7.c...
linking...
.\Objects\Hello.axf: Error: L6915E: Library reports error: The semihosting __user_initial_stackheap cannot reliably set up a usable heap region if scatter loading is in use
Not enough information to list load addresses in the image map.
Finished: 1 information, 0 warning and 1 error messages.
".\Objects\Hello.axf" - 1 Error(s), 4 Warning(s).
Target not created.
Build Time Elapsed: 00:00:01

Please help in resolving above issue.