Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

uCos not setting timers

uCos does not appear to explicitly set the HW timer period for its interval timer. If a boot loader changes the default timer settings for this timer, when uCos boots it will assume the defaul...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

The uCos port assumes that the timer is set to the period you selected in SOPC Builder, which is the value that is reflected in system.h. We cannot guarantee that the hardware has a writeable period register. None of the software which runs before MicroC/OS-II alters the period. If your bootloader is modifying the period, it should change the timer period back before loading MicroC/OS-II.