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SPI write

Posted on December 15, 2015 at 14:35Hi I have seen that spi has 16 bit buffer but only we can send 8 bit. Would like to know why it is like that ?

arunl4g by • Associate II
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UART reception problem when SysTick Interrupt is enabled

Posted on December 15, 2015 at 13:41 I'm using STM32F411RE-Nucleo board and generating a project with Cube MX for System Workbench. The problem is that,HAL_UART_Receivefunction doesn't receive input from the user, even though I don't change any U...

USART does not get interruption from time to time.

Posted on December 14, 2015 at 10:41Hi, We are using an ARM STM32L100RC. We receive in our firmware a message of just two characters through the USART 1. At 9600 kbps it works ok, at 19200 it fails sometimes, but at 38400 it fails one in ten times (...

rvarona by • Associate II
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Same calculation time in both 36MHz and 64MHz

Posted on December 15, 2015 at 14:55Hi everybodyI am trying to implement some mathmatic calculations in STM32F103.I use HSI and PLL to provide 64MHz and 36MHz clock, considering Flash Wait State and enabling Prefetch Buffer. I expect that the calcul...

serial port debug question

Posted on December 12, 2015 at 16:29Hello All, Moving from the Motorolla 9s12 to the stm32.  Just got a eval board and after recovering from Register shock I am just trying to get some blinky lights and serial comm (USART) going which is what I wou...

USB Host HID EventCallback

Posted on December 15, 2015 at 12:16Dear,In my STM32F429 application I use a mouse or a keyboard The USBH_HID_EventCallback is common to both It would fine to have a different callback registered in the HID_Handle by USBH_HID_InterfaceInit() like it...

EXTI rising falling with pin monitoring - issue

Posted on December 15, 2015 at 10:05 I'm using STM32F4 Discovery. I configured a GPIO pin PB8 for external interupt for both rising and falling edges, so that I have to reset a flag when it is high->low or set when low->high which is done by rea...

Problem Failed firmware STM32F7Disco

Posted on December 15, 2015 at 10:34Hi. Board http://www.st.com/web/en/catalog/tools/FM116/SC959/SS1532/LN1848/PF261641?icmp=pf261641_pron_pr-massmarket_jun2015&sc=stm32f7discovery-pr On board I found this file: FAIL.TXT - ''The interface firmware F...

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