CCS/TMS320F28075: SysCtl_setClock not work when using flash link.

user1608700

Part Number: TMS320F28075
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

Everything works fine when I use RAM link file (28075_RAM_lnk.cmd), but when I change it to flash link file(28075_FLASH_lnk.cmd), the SysCtl_setClock does not work, program jump to

3fe493: 7625 ESTOP0
3fe494: 6F00 SB 0, UNC

loop forever.

I do not understand, everything is the same except the link file. what make it not work using flash link file?

Anyone can help me ?

over 7 years ago

0 MEGHANA MANAVAZHI over 7 years ago

TI__Genius 10345 points

hi ,

Where are you picking the linker command file from ?

Can you check with the cmd file in the below area of C2000ware (www.ti.com/.../C2000WARE) .
c2000ware\device_support\f2807x\common\cmd\2807x_Generic_FLASH_lnk.cmd

Regards.

0 Mark Labbato over 7 years ago in reply to MEGHANA MANAVAZHI

Guru 30330 points

Hi there,

If you are using any example code, make sure that you have the #_FLASH defined in your project. This will force memcpy to be called which will allow the Flash to be initialized to operate at the appropriate frequency for your PLL clock.

Regards,
Mark

C2000™︎ microcontrollers

C2000 microcontrollers forum

CCS/TMS320F28075: SysCtl_setClock not work when using flash link.