• State Not Answered
  • Locked Locked
  • Replies 1 reply
  • Subscribers 22 subscribers
  • Views 841 views
  • Users 0 members are here
Options
Related
How was your experience today?
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Is there a prerequist that os_sys_init() needs to be called before os_mut_init()?

Kris Z

Evaluation Board: STM3210E-EVAL
Tool: uVision4/ULINK Debugger
Processor: STM32F103ZE

When calling os_mut_init() before os_sys_init() the HardFault_Handler is called because of an exception. This exception is generated in the second (0x08000298) line of instruction in SVC_Handler:

                 SVC_Handler:
0x08000294 F3EF8009  MRS      r0,PSP
0x08000298 6981      LDR      r1,[r0,#0x18]
0x0800029A F8311C02  LDRH     r1,[r1,#-0x02]
0x0800029E F431417F  BICS     r1,r1,#0xFF00
0x080002A2 D124      BNE      0x080002EE

Does this mean that os_sys_init() needs to be called before os_mut_init()?