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Forum Posts

GPIO timing issue in Timer ISR

Posted on May 18, 2018 at 12:11Hello ,I am toggling a gpio inside the timer ISR . the timer ISR triggers for every 1 sec. Actually i am not able to see perfect 1 sec of gpio toggling . it also differs at different AHB frequency . i have included 2 c...

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RN by Senior
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  • 8 replies
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Resolved! STM32 MIPI checksums

Posted on May 19, 2018 at 16:21So, I am using STM32F769xxx to run MIPI-DSI display. On the display's datasheet there are power on and off sequences. I am able to get display on and off (so commands are at least somewhat OK), but colors and data on l...

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VREF+ in STM32L1xx

Posted on May 18, 2018 at 00:53Dear all,I have question regarding the VREF+ please.  My understanding is that in STM32L we only have one VREFINT which is about 1.2xx Volts and this is not a reference Voltage to the ADC.  It is directly connected to ...

mmsya by Associate II
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Left and Right alignment in DOR (DAC STM32F103RB)

Posted on May 18, 2018 at 22:27What is the purpose of Left and Right Alignment of data in DAC?Secondly, In DAC_DHR12L1 do we need to manually shift the bits to the left to get them to right place or does it happen automatically?#dac #stm32f103rb

Some registers are not written in debug!

Posted on May 18, 2018 at 15:32Hi everyone,I'm not using CUBEMX or HAL drivers, i'm programming manually on stm32f746g disco board. When i build and debug, some registers are configured but some are not configured. If i restart the debug without ext...

N ORhan by Associate III
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  • 2 replies
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STM32F407VG + 4 bit SDIO + DMA does not work probably

Posted on April 27, 2018 at 19:33 Hi, I am using the STM32F407VG and try to read an SD Card over SDIO in 4 bit mode. I have downloaded the fatfs driver from this site: https://community.st.com/external-link.jspa?url=http%3A%2F%2Fstm32f4-...

JulianH by Associate II
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  • 3 replies
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STM32L0 + ADC + DMA

Posted on May 18, 2018 at 16:55Hi to all,I want to write some code (using HAL) to make ADC conversions of multiple channels using DMA on a STM32L073 MCU; Here some settings that the MCU will have: every group conversion is triggered by a TRGO event...

Yet a misunderstanding in RM0008

Posted on April 27, 2018 at 13:46Hello.  I do Again misunderstand something in the manual RM0008.  In Chapter 9 some port/pin settings are explained and the user can choose to have an input floating, with pull up or with pull Down. But I do not find...