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I2C communication: getting the wrong values!

Posted on January 31, 2015 at 22:43 Hei everybody, I am using a barometric sensor MS5611-BA03 for measuring the height. The sensor pressure values should be around 1000 mb, but instead of that I get -4895 mb. It's obvious, this can't be ...

esovo1 by Associate II
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confusing about tpclk on page 662,RM0008 REV 15

Posted on January 31, 2015 at 13:44Hi,all.I am so confusing about the term tpclk on page 662,what does this PCLK mean exactly?pclk1 or just the word pclk?In my opinion,I guess the word tpclk represent 1/fpclk1,am I right? Thanks for hlep. #can #t...

346239463 by Associate II
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STM32F103 Config & Read RTC

Posted on May 31, 2012 at 15:22 Hi, RTC works but i get only 1 second counter if i set RTC->PRLL = 0x32; below the init and get function. In most example i see 0x7FFF for PRLL. Why the counter counts slow.Any prescaler i missed? RCC...

Switching pin mode

Posted on January 31, 2015 at 19:13Hello, I have log. 1 on a pin and switch it off. After switching off I need immediately  measure voltage on this pin. How can I do this? One possibility is to configure pin to output, set log. 1, configure the same...

j3lda by Associate II
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I2C problem, not getting the ACK bit

Posted on January 06, 2015 at 17:35 Hello, I am trying to communicate with the Barometric sensor MS5611, using the I2C protocol. My micro is STM32f3discovery. The address of the sensor is send, but not the command. The code is stucked in...

esovo1 by Associate II
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  • 12 replies
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STM32F429 Timer1 + DMA2 + SPI1

Posted on January 28, 2015 at 15:42Hello, is the following possible? Timer1 is in capture/compare mode. If an compare event is generated => start DMA2 DMA2 copy 2bytes in the data register of SPI1. SPI1 send the 2bytes I have try it, but I get no CL...

der-kyle by Associate II
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STM32F407 FSMC To NOR Flash Issue

Posted on January 04, 2015 at 08:41The original post was too long to process during our migration. Please click on the attachment to read the original post.

shane by Associate II
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  • 5 replies
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STM32F030 debugging versus STM32F407

Posted on January 30, 2015 at 16:15Emulating with the STM32F030. Everything works good until I turn on the serial interrupt. After that if I step I find myself stuck in the serial interrupt. An external device is sending serial data to the STM32F030...

jgibbs by Associate
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Discovery boards and SPI/DMA example

Posted on January 28, 2015 at 23:47Hi folks,I'm working with two Discovery boards (STM32F4-DISCOVERY and STM324F429I-DISCO) I'm running the SPI DMA example (C:\STM32Cube_FW_F4_V1.3.0\Projects\STM32F4-Discovery\Examples\SPI\SPI_FullDuplex_ComDMA for ...

hbarta2 by Associate III
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