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Hi, I have configured one quad timer in variable frequency PWM mode and would like to swap it's on/off time after some time. Please find attached application 56F827 in which I am using two quad timers to simulate required functionality. i.e Change the on/off time by using COMPARE_AND_LOAD_REGISTER of quad timer. BSP_DEVICE_NAME_QUAD_TIMER_A_1 timer is a free running timer. BSP_DEVICE_NAME_QUAD_TIMER_A_2 timer is configured such that after specified interval it will swap on and off time of BSP_DEVICE_NAME_QUAD_TIMER_A_1 I have observed that in Callback of BSP_DEVICE_NAME_QUAD_TIMER_A_2 [CallbackOnCompare2] it will swap the on off time but when it loads Off time into QT_LOAD_COMPARATOR_LOAD_REG2 register and on time QT_LOAD_COMPARATOR_LOAD_REG1 the on/off time which I am getting on the CRO are not the reversed. [Else part in the callback] Could any one please tell me how to use COMPARE_AND_LOAD_REGISTER usage? At that time shall I stop the timer? According to the documentation in User manaul of 826/7 CMPLD1 and CMPLD2 are special registers provided in 827 so that we can load on/off time for next cycle using them and after completeing the current cycle 827 will load CMP1 and CMP2 values from CMPLD1 and CMPLD2. [Page No 356 Last sentence of 13.6.12] Thanks and Regards, Nitin

Attachment (not stored) TestQuad_OnOff.zip Type: application/x-zip-compressed

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