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STM32L053R8 Problem trying to sample VREFINT

Posted on October 08, 2014 at 02:07Hi All, I have configured the ADC according to the initialization code below and then try to to a conversion to read the VREFINT voltage so as to calculated AVDD.  The initialization appears to work ok and the conv...

danq by Associate II
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IAR Workbench programming

Posted on October 08, 2014 at 10:33hello all,I am working on a project where I have to design the PCB. I have designed the PCB similar to the http://www.ti.com/product/CC2541 sensor tag... I have used http://www.ti.com/product/cc2541 soc, temp senso...

STM32F072 PWR_EnterSTOPMode USART problem

Posted on October 02, 2014 at 16:28 Hi, I have a major problem about mySTM32F I'm trying to join usage ofPWR_EnterSTOPMode with USART. I use USART1 and 3 from my microcontroller, it initialiaze properly and I'm able to communicate through it. Me...

USB cannot recieve GET_DESCRIPTOR

Posted on September 28, 2014 at 20:37I've been trying to get my st discovery board to receive data from my computer over the USB.  My source is attached.  I've been working on this for a long time.  The progress is slow.  I spent weeks just to figur...

drobi001 by Associate II
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baudrate generation on stm32f4

Posted on October 07, 2014 at 13:37Hi list, page 932 of the reference manual gives a formula to calculate USARTDIV. But if I check the first entry in table 133 I get completely different values. With Pclk=8MHz I get 8.10^6/(16*1200)=14.7, while the ...

Sietse by Associate III
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STM32L053R8 Reset identification register can't be cleared

Posted on September 25, 2014 at 22:36Hi all, After reading the RCC_CSR register to determine the reset source, I want to clear the register so as to be able to resolve future non-por resets.  When I follow the instructions in the datasheet, the bits...

danq by Associate II
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ADC Port Issues

Posted on March 30, 2013 at 23:59So I am having an interesting issue with configuring the ADC to work with anything but PortA.  I can hook it to any pin on port A, change the ADC channel, and it will work.  However, I have tried doing the same on Po...

cozzensbp by Associate II
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stm32cube MX FOR STM32F429

Posted on September 28, 2014 at 16:18i use the cube to generate ltdc ip code of stm32f429,why i can't get the base  graphic function such as LCD_DrawLine ,LCD_DrawCircle etc?must i write the function by myself or copy the functions from ''the stm32f...

SPI receive slave mode speed

Posted on October 01, 2014 at 19:53 Hello, I am trying to use an STM32f4 discovery board to receive data in slave mode over SPI. I am using HAL drivers generated from STMCube and using interrupts to receive the data. I can read all the d...