CCU4 on XMC1404 is not working

[User20918]

Hi,

I'm developing an application using CCU4 on XMC1404 MCU ... I initialized the peripheral as following (as shown in the picture):
1) clear the gating of CCU40
2) remove CC40 from idle mode
3) set the run bit of the prescaler
4) configure the global CCU4 register GCTRL



but when I debug the program, all the CCU4 registers are zeros, and do not change by my code (for instance the period shadow register and the dead time register are all zeros).



Did I forget to enable a clock or something, because the CCU40 peripheral appears to be not active?

[SudheeshK]

Hello,

Please refer our example project "CCU4_TIMER" available with XMC Lib package. It will help you to understand the usage of CCU4.
XMC Lib can be downloaded from following link: http://dave.infineon.com/Libraries/XMCLib/XMC_Peripheral_Library_v2.1.24.zip.
Example project is available in the folder "XMC_Peripheral_Library_v2.1.24\XMCLib\examples\XMC1400_series\CCU4".

Thanks and Regards,
Sudheesh

[User20918 · Accepted solution]

.

,The program worked fine after I disabled bit protection, as following:

SCU_GENERAL->PASSWD = 0x000000C0UL; //disable bit protection


As an advice to the XMC team @ Infineon, Please add examples with low level programming as the majority of professionals don't use the XMC libraries and prefer to meticulously optimize the device drivers based on their needs.

[User11773]

Thank you for "circling back" with an answer.