About sm5wpx

sm5wpx · 2014-09-22

Posted on September 22, 2014 at 14:38Hi all! I am running a 3 MCU solution were all MCU:s are communicating 21MHz full duplex SPI to eachother. As: MCU1 SPI3 Master <-> MCU2 SPI3 Slave MCU1 SPI2 Master <-> MCU3 SPI2 Slave MCU2 SPI2 Master <-> MCU3 S...

sm5wpx · 2014-09-24

Posted on September 25, 2014 at 07:00 I now confirm that switching from TMR2 to TMR10 solves the issue =)

sm5wpx · 2014-09-24

Posted on September 24, 2014 at 21:29 Ok I see... I shall investigate the workflow. Before I left ofice today, I concluded that using TMR10 instead of TMR2 solved the issue. I do not know if it is because of change of timer clock source or not. I wi...

sm5wpx · 2014-09-24

Posted on September 24, 2014 at 13:18 I have attached a new scope image taken with 20ns/div. I.e. not much zoom. The error pulse is the first positive pulse in the image. I did not get eny more errors when disabeling the TMR2 IRQ. I also tri...

sm5wpx · 2014-09-24

Posted on September 24, 2014 at 09:28I have a 100us timer TMR2 that generates interrupts periodically. Its interrupt priority is the lowest among all other IRQ:s. The ISR does some simple variable tick-up and ofcource clears the IRQ flag for the tim...

sm5wpx · 2014-09-23

Posted on September 23, 2014 at 11:37Hi and thank you for the answers. First, the headline is wrong. It shall say SPI3 not SPI8 =). Yea sorry for the poor trace. I shall try get an other one. I just manage to trig an error and I can now see that t...

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STM32F407 Half bit error on SPI3 MISO on multi SPI solution

Re: STM32F407 Half bit error on SPI3 MISO on multi SPI solution

Re: STM32F407 Half bit error on SPI3 MISO on multi SPI solution

Re: STM32F407 Half bit error on SPI3 MISO on multi SPI solution

Re: STM32F407 Half bit error on SPI3 MISO on multi SPI solution

Re: STM32F407 Half bit error on SPI3 MISO on multi SPI solution