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Renesas RH850 / P1x-C: UMI Error, R_FAD_ERR_CLOCK The CPU clock frequency is incorrect

13-Oct-2021

The CPU clock is determined by the PLL0 parameters in OPBT1. Factory default value is 0xBFFFC938, which cannot be used for Flash programming using UMI. 


Possible solution:

The OPBT1 must be changed according to the PPL and Clock divider settings, e.g. 0xBFFFC9D8. For the description of OPBT1 bitfields refer to RH850/P1x-C User's Manual.

Similar limitation exists on P1L-C where factory default value of OPBT1  is 0xBFFFC939. Valid value is for example 0xBFFFC938.

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