Custom Trim Now Supported In Cyclone PRO Image Creation Utility
Once the programming algorithm has been selected, the utility will determine the allowed frequency range from which the user can choose. The user also has the option of enabling or disabling this feature. When it is enabled, the user can input a desired frequency. If the user does not enable this feature and input a frequency, or if this feature is disabled, the utility will simply select the default trim frequency as specified in the device reference manual. Please note that this feature is only effective if the "PT ; Program Trim" command is included in the programming sequence. This custom trim feature in the updated Cyclone PRO Image Creation Utility is similar to the one available in CodeWarrior for Microcontrollers (RS08/HC(S)08/ColdFire V1). To download the latest updates, please visit our Cyclone PRO product page. 
P&E has updated its Cyclone PRO Image Creation Utility to provide a way for users to set a custom trim frequency for HCS08, RS08, and CFV1 devices that have an internal reference clock. To use this feature, the user must first select a programming algorithm, because not all devices have the same maximum and minimum internal reference clock frequencies.