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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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HAL_UART_Receive versus HAL_UART_Receive_IT

Posted on February 06, 2017 at 21:21I am using a Nucleo-L476RG board and I am trying to use the HAL_UART_Receive_IT function to receive a byte at a time from a RS-232 source (4800 Baud) on UART 4.  I need to use the interrupt because I am transmitti...

mvonahnen by Associate III
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MPU9250 SPI - Only receive 0xFF

Posted on April 14, 2018 at 17:27  The original post was too long to process during our migration. Please click on the attachment to read the original post.

San Der by Associate II
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STLD41 with STM32L4 flickering at pwm 100%

Posted on April 19, 2018 at 22:25Hi, I have some trouble when I set my PWM to 100% output for my STM32L4 to the input STLD41. I use a 40KHz frequency for my pwm and a periode of 400 cycles. Between 0 to 398 cycles compare everything run smoothly. at...

STM32F429 LCD driver: decreasing refresh rate

Posted on April 18, 2018 at 12:35I am planning on using the onboard LCD controller on STM32F429. I am newbie in driving TFT LCDs and I have 2 questions:1- I am planning on driving a 800*600 LCD in 24bit rgb mode. This would require a buffer of 1,440...

How can I set pb8 to SDA on stm32f103rc?

Posted on April 19, 2018 at 08:10I want I2C function on stm32f103rct.pb8-> sda and pb9-> sclI set ports configuration  like this#define I2C_SCL_HIGH    GPIOB->BSRR = 0x00000200    //PB9 0x00000200 set PB9 to 1#define I2C_SCL_LOW     GPIOB->BRR = 0x0...

Why STM32F407VG USB Host CDC sending wrong data?

Posted on April 19, 2018 at 09:10Hi,I'm working on STM32F407VG board. Try to get USB Host CDC working. I'm able to get enumeration working. The data can be sent to device. But the data is wrong. For example, 'Hello'(48 65 6C 6C 6F) is send from Host...

Pilot B by Associate II
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Resolved! STM32L4 ADC wrong conversion results

Posted on April 17, 2018 at 11:56Hi,i have a very strange behaviour on my STM32L433CCTx.Im am configuring the ADC with STM32Cube FW_L4 V1.10.0 to measure multiple channels. As long as i configure 5 or less conversions in the regular conversion group...

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Resolved! QSPI flag 'QSPI_FLAG_BUSY' sometimes stays set

Posted on October 30, 2017 at 08:47 Hello, We'rehaving an issue on STM32F765IGT - when trying to use flash on QSPI, configured in 'Indirect mode', using HAL v1.8.0, and DMA enabled. It's quite hard to replicate, but it seems to occur whenth...

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