Forum Discussion
rshal2
Occasional Contributor
7 years agopreloader - do we need to manually change code for clocks ?
Hello, In the following page: https://rocketboards.org/foswiki/Documentation/PreloaderClockingCustomization131 there is a description of clock customization which generates a code ( pll_config.h) ...
Vicky1
Regular Contributor
7 years agoHi,
'So, is it still required to customize and change code manually as described in above page ?'------- preloader generator creates source code to configure HPS clock (pll_config.h) using the Main PLL, Peripheral PLL & SDRAM PLL parameters etc.
The pll_config.h file created automatically will be populated with default preloader values, but it is recommended that frequency parameters should be confirmed with used device datasheet & clock manager document so that all frequency parameters can fit in correct range.
Here care needs to be taken that SDRAM PLL parameters has to change in Qsys instead of preloader generator since they are copied from handoff file(emif.xml)
Regards,
Vicky