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RTC not running in Stop Mode

Posted on August 05, 2014 at 14:58Using an STM32F103, I want to wake from Stop mode by RTC alarm after 5 seconds.I have set EXTI on UART_RX and #17 for RTC.Here is what I know: I can put the MCU into Stop mode (via WFI).I can wake from Stop via UA...

How to use I2C to ignore NACKs? (stm32f401 vs. SCCB)

Posted on August 05, 2014 at 15:12HiI'm trying to interface an OV7670 module using STM32F401 discovery board. First step is to get this SCCB interface going, which seems to be an I2C ripoff, http://www.ovt.com/download_document.php?type=document&DID...

bgeri91 by Associate
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STM32F401RE SPI Init without CMSIS Functions

Posted on July 22, 2014 at 10:53 Hello, I have a problem with the initialization of the SPI1 from my STM32F It doesn't work and I don't now what I doing wrong or what I forged. When I write something in the data Register ( SPI1->DR), nothing h...

c239955 by Associate
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Bugreport Cube32MX 4.0 & HAL_UART_TxHalfCpltCallback

Posted on August 02, 2014 at 08:21Hi,In the HAL documentation, stm32fxx_hal_uart.c & .h, I can read that in interrupt mode, the HAL_UART_TxHalfCpltCallback is called after half of tx is transfered but this is wrong.The HAL_UART_TxHalfCpltCallback is...

Osto by Senior
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I2C Address Issue

Posted on August 05, 2014 at 07:53Hi All, I am having an issue with I2C on the STM32F4. After successfully transmitting an address byte with values below 0xF0 , but when address value is more or equal 0xF0  (e.g. 0xF0, 0xF2, 0xF4 ..) - the slave ack...

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Help with simple ADC on STM32F4

Posted on July 17, 2013 at 16:46 Hi all, I'm trying to get a simple ADC working on the stm32f4 discoveryboard. At the moment I simply want to obtain an input value(ConvertedValue) as a variable rather than saving to memory inDMA. I'm struggl...

Error: __vector_table not found when dowloading

Posted on January 29, 2013 at 05:28Using STM32F103ZE and IAR Embedded Workbench IDE 5.4 using assembler (no C). The program assembles and links with no errors. When selecting ''download and debug'' option the following errors occur: Warning: __vecto...

sue by Associate III
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STM32Fx Series USB 'HOST' CDC Example

Posted on August 04, 2014 at 18:03I think this has been asked many times before but I cannot find a solution. Does anyone know of an example USB CDC 'HOST' example that is basically the other end of a USB CDC-VCP Device?  

DMA2 never triggers interrupt on ''transfer complete''

Posted on August 04, 2014 at 12:05Hi all!I'm trying to configure DMA2 to trigger an interrupt on ''transfer complete'' event. I'm using DMA2 to transfer data from ADCs to memory. However, it seems that DMA2 never triggers an interrupt, but data is t...

marko2 by Associate II
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