STM32 MCUs Products

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lwip ping 2 times

Posted on June 30, 2017 at 04:39Hi,I use CubeMX 4.21.0 to generate FreeRTOS+LWIP code on STM32F746GZ Nucleo board. The problem is when I ping the board, It will reply after pinging 2 times. See below capture:Did anybody ever meet this problem?

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UART in DMA RX mode stops working after few mins

Posted on November 28, 2017 at 13:07 MCU: STM32F777II I am facing a very strange problem with receiving data from a UART where the data reception stops after few minutes like after >10 minutes, where initially it works pretty fine.The RX channel ...

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Normal status of boot0

Posted on November 28, 2017 at 06:16Hi.I have a question. I am using STM32L051 and I am wondering about the state of BOOT0 pin. When power is first applied, the boot mode can be proceed from the status of BOOT0 pin and nBooT1 After that, I wonder wh...

Multiprocessor communication using a USART

Posted on November 27, 2017 at 23:10Can someone please direct me to a comprehensive explanation of Multiprocessor communication using a USART.  I have reviewed paragraph 31.5.7 of RM0385 and still have questions.Thank You 

Transfer of Right Aligned ADC data to the User defined variable using multiple channels ADC (STM32F4)

Posted on November 28, 2017 at 16:53Dear all,I have configured ADC - 1 channel with DMA to retrieve data. It all works fine. Now, I am trying to use the same ADC (ADC1, DMA2_Stream0) to use 2 channels (channel 12 and 13). uint16_t ADC_Value[2] = {0,...

Regarding ADC error

Posted on November 27, 2017 at 09:22Dear all.I measured ACD input increasing the voltage by 10mVdc. but, there are non-nonlinear points.As the datasheet, ED and EL are +-1.5LSB and +_2LSB. It seems that my measurement result is bigger than them.Coul...

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High frequency PWM by SW

Posted on November 28, 2017 at 11:25Hi All,Based on STM32F072, how can I generate high-frequency PWM(41.6KHz) by software GPIO mode?And moreover for read, how to do PWM input by software? is it possible to capture such high-frequency PWM input?Thank...

STM32L431: Enable USART rises IDLE ISF

Posted on November 28, 2017 at 11:46Hi all,I'm using the STM32L431RB device and wanna implement UART communication with DMA and IDLE line interrupt functionality. In principle everything is working with one exception:After enabling USART the IDLE fl...

S. L. by Associate
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Resolved! ST develop tool

Posted on November 28, 2017 at 01:49Hi,Now we need to develop the STM32F103 FW, I want to if ST provide any free IDE for FW development? Best Regards,Kent

kent gu by Associate III
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