STM32 MCUs Products

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STM32F469xG STM32F469xE Flash memory organization

Posted on March 30, 2016 at 20:58Hi, For the following devices:STM32F469AESTM32F469IESTM32F469BESTM32F469NEIs the flash memory configured as single bank of 512KBytes? The RM0386 Reference manual does not not make it clear how the 512KByte flash is o...

juan23 by Associate
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Standard library: stm32xxx_rcc.c: waste of RAM?

Posted on March 30, 2016 at 18:25Hi, I am looking how to save a few bytes in RAM. I am using the standard peripheral lib, and included in stm32f10x_rcc.c, stm32f2xx_rcc.c and stm32l1xx_rcc.c, I found some static constant arrays (PLLMulTable, APBAHBP...

zabel by Associate III
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LwIP doesn't receive messages after a while

Posted on March 25, 2016 at 17:06Hallo, I'm developing on a board based on STM32F407 and FreeRTOS, FatFS, and LwIP. The code is generated by Cube 4.13. The problem is that during a test with a continuous ping (-f) the board doesn't receive messages ...

[SOLVED] STM32F042 CAN init problem

Posted on March 26, 2016 at 14:40 Hi ST community, I am working on CAN communication using STM32F042F6P6 (20 pin, PA11/12). During initialization (CAN_Init function), I am receiving INAK_TIMEOUT (stuck in a while loop for cca 25 seconds)...

zlajoan by Associate II
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STM32F429I-DISC1 and external power supply issue

Posted on March 26, 2016 at 22:57Hi!Is there any chance to supply external power supply to STM32F429I-DISC1? When I connect 5V to 5V pin nothing happens, except blinking LEDs from ST-LINK and display highlight. Maybe RESET is always active or someth...

kajtek610 by Associate II
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ADC analog watch-dog interrupt

Posted on March 18, 2016 at 15:43Hello,i want to use the analog watch-dog 1 interrupt with the STM32F334.I configure the peripheral with CubeMx.But the interrupt is never serviced. I must enable the EOC or EOS interrupt to get the Analog watch-dog c...

Multiple reads using DMA

Posted on March 30, 2016 at 13:14 Does DMA has FIFO buffer of commands? My task is to read multiple bytes from different registers via I2C alternately. Could I just write like this: /*Somewhere in code....*/ HAL_I2C_Mem_Read_IT(&hi2c2,...

sincoon by Associate II
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STM32F427 RTC Problem

Posted on March 30, 2016 at 12:59hi, My RTC is driverd by external 32.768K  clock source. It works well,if the MCU does not enter standby mode. Let the MCU enter standby mode and wake up every 60 seconds by alarm, RTC will slow about 6 seconds durin...

STM32F401 discovery - USB CDC not working

Posted on March 15, 2016 at 18:17Hi, I'm trying to get USB CDC to work. The sample project with USB CDC works and it outputs Hello\r\n, however, when I've added additional tasks and I2C usage, the application is stuck inside in an infinite loop insi...