STM32 MCUs Products

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Forum Posts

Boot Sequence Quiescence

Posted on December 06, 2017 at 20:28We need to know if, according to AN2606, STM processors require the other boot methods to be quiescent (inactive or dormant) in order not to lock up the system.To explain this issue, on another STM processor in th...

STM32F103 I2C problem with comunnication

Posted on December 06, 2017 at 18:27Hello. I configured stm32 PB11 and PB10 as SDA and SCL pins then i connected GY-30 BH1750 light sensor.It's address is 0x23 when ADDR pin connected  to GND.POWER_ON 0x01RESET 0x07BH1750_CONTINUOUS_HIGH_RES_MODE 0x...

CubeMX support of One pulse modes for timers

Posted on August 23, 2016 at 07:23Some of the timers that contain multiple channels are supposed to be able to support a one pulse mode where a delay precedes the pulse after a trigger is received.  However in CubeMX I cannot see how to set that up....

STM32L4R LPUART FIFO deepth?

Posted on December 06, 2017 at 13:11Hello,I can't find the information about the LPUART Fifo deepth neither in the datasheet nor the rm0432 not the systemheaders (stm32l4rXxx.h). Do I overlook it?I guess it is 8 bytes like in the other u(s)art of th...

STM32F0 don't understand reset / bootup / AC6 ST-LINK

Posted on December 06, 2017 at 16:07I have follow sequence in my linker script:.test : { . = ALIGN(4); LONG ( _estack ) ; LONG ( Reset_Handler + 1 ); . = ALIGN(4); } >FLASH (=0x8000000 )Reset_Handler: /* 0x8001xxx */ ldr r0, =_estack /* Breakpoint *...

udp_recv() callback function problem

Posted on December 06, 2017 at 13:17LwIpMCU: STM32F765Custom hardwareSTM32Cube FW_F7 V1.8.0udp_recv() callback function has stopped working since last STM32CubeMX update (4.23)Anyone know what is wrong please?void UDP_ConnectTask(void * pvParameters...

encoder mode both edge don't work

Posted on December 06, 2017 at 12:47Hello,I'm using the STM32L0 with STM32Cube and I notice that the encoder mode doesn't work in both edge. I am obliged to make it work as a rising edge but even so, it only counts on a single rising and falling fro...

STM32L496G-Discovery Demonstration Example

Posted on May 05, 2017 at 21:42Hi my name is Alptigin SAKI,I have a question about STM32L496G-Discovery Demonstration Example in IAR. I am using IAR v8.11 when I opened the project and click rebuild all I found  couples error about 'core_cmFunc.h' n...

Resolved! STM32F3Discovery USB CDC Receive loosing data

Posted on October 18, 2017 at 14:54I'm trying to make my STM32F3Dsicovery just loop back some data over USB however with code below I loosing approximate every 2nd character. If I enable the &sharpif clause the missing characters drop to approximate...