System clock frequency configuration for Kinetis KV10 MCU's

[m_benderradji]

Hi,

By default the system clock frequency for kinetis KV10 MCU's is 75 MHz.

Could you please tell me if there is a possibility to configure the system clock frequency (use another value instead of 75) ? configuration with PLL for example ?

In FreeMaster, is it possible to have access to the system clock ? if yes, which variable i need to check?

Thanks in advance for your support

[mariuslucianand]

Hello m.benderradji@outlook.fr‌,

Unfortunately MBDT does not provide a way to configure the clocks registers or to check other variables related with it. 

But, if your really need to change some settings in clocks, the code generated calls a function called mcg_kv10v_init which can be found in Kinetis\src\mctbx_kv10z\src\c_library\clc_init.c

For each and every time you generate code this file is copied into the generated code and the main function uses the mcg_kv10v_init to init the clock.

Even if you add here variables to edit them with the FreeMaster I think is useless because the clock it is initialized before your app is started. So the only way it is to modify the mcg_kv10v_init to fit your needs. 

Hope this helps, 

Marius