About denny2

denny2 · 2016-02-04

Posted on February 04, 2016 at 10:18Hi, I want to use the hardware control of SPI3-NSS pin. I wrote a code for it on the Discovery board with the STM407VG and it works as intended. I use the drivers from the older Discovery bundle, not the STMCube. ...

denny2 · 2016-02-04

Posted on February 05, 2016 at 08:53In the GPIO configuration, Ã� Think the line GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; looks suspicious. I'd remove that and try to see what happens. /D

denny2 · 2016-02-04

Posted on February 05, 2016 at 08:46Jan, almost correct: The NSS pin is always low on 405RG, confirmed by oscilloscope. At the command 'GPIO_PinAFConfig(GPIOA, GPIO_PinSource4, GPIO_AF_SPI3);' the NSS pin goes high on the 407 and afterwards it...

denny2 · 2016-02-04

Posted on February 04, 2016 at 11:46qwer.asdf: The answer is yes to your questions And as I said, it works on the 407VG target. With the workaround, naturally I do not set up AF for the pin. I posted the relevant part of the code in an update at th...

denny2 · 2016-02-04

Posted on February 04, 2016 at 11:35 Hi Jan, yes the SPI3 is setup as master. The code is identical, and it works when downloaded to the Discovery board but not on the 405 target board. And to my knowledge and experience: the NSS pin is toggled by t...

denny2 · 2016-02-04

Posted on February 04, 2016 at 11:31 Hi Mayla, I am using the GPIOA, pin 4. And yes, the same debug mode for both targets. As a side note, I used a workaround, setting up the pin as a regular output and replaced the lines 'SPI_CMD(...);' with 'GPIO...

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NSS hardware control works on 407VG, but not on 405RG

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Re: NSS hardware control works on 407VG, but not on 405RG

Re: NSS hardware control works on 407VG, but not on 405RG

Re: NSS hardware control works on 407VG, but not on 405RG

Re: NSS hardware control works on 407VG, but not on 405RG