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STM32F100RC revisions

Question asked by Kruger on Jun 24, 2015
Latest reply on Jun 29, 2015 by Kruger
I am having a problem with STM32F100RC microcontroller related to the chip revision. It appears that TIM14 which I use is not presented in a new batch of chips. Old ones are marked STM32F100RCT6B rev. A and they work fine. The new ones are marked STM32F100RCT6 (without the 'B' which is some kind of internal code for ST according to the datasheet) and the revision is X. With the new batch it is not possible to enable TIM14 clock in RCC_APB1ENR register. The bit cannot be set by software. TIM14 registers also cannot be modified. Errata document states it is only valid for revision A chips and I could not find any information about revision X ...