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STM32F103: DMA1 on TIM3 and TIM4 (Upd, Ch1, Ch2/Ch3)

Question asked by reichmuth.wenzel on Jul 14, 2014
Latest reply on Jul 14, 2014 by reichmuth.wenzel
Hello, I like to use DMA1 in my STM32F103 application. I need 6 timer triggered channels.
So i choosed from reference manual pg. 273:
Channel 1: TIM4_CH1
Channel 2: TIM3_CH3
Channel 3: TIM3_UP
Channel 4: TIM4_CH2
Channel 6: TIM3_CH1
Channel 7: TIM4_UP
I used the configuration of some examples. TIM3 and TIM4 are configured identical.
All DMA Channels are configured and enabled the same way.
But I only get request events from TIM4! (tested with "transmission complete"-interrupt)

So my question is: is it possible to use 6 Channels of one DMA?
Did i missed something?

thanks in advance

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