So, clearly a novice mistake as I see the mx init for tim2 is leaving the registers all 0. Not so for tim4. Now I have something I can debug. I've learned my lesson.Thanks, hopefully I can fix this now.
Thanks for the reply.The main thing the slaveModeSyncrhonization is write the SMCR register SMS field. The description of the "Using one time as prescaler for another timer" specifically states one must write two values to SMS field, i.e., they seem ...
Sorry, I should note that I have setsMasterConfig.MasterOutputTrigger = TIM_TRGO_OC4REF;But it was originally set to TIM_TRGO_UPDATE, but no difference in functioning.
JW, thanks for the reply. Sorry for the delay in answering, had to drive an hour after I saw your first response.I'm using the STM32F429zi on an ST Nucleo board. We've been using that for about five years and have working product, but I'm working on ...