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Forum Posts

[Solved] Discovery f429 USB Host (usb stick not working)

Posted on May 12, 2015 at 00:20Hi,I worked for several weeks on a dictaphone project with the board F429 discovery. The goal is to write the values ​​of the ADC to a file on a USB key.My ADC works with DMA, everything is ok.However, I generated my f...

raph by Associate
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BSRR versus BSRRL and BSRRH

Posted on October 21, 2015 at 14:59Hello, why do the recent STM32Cube Headers  still keep BSRRH/BSRRL in the GPIO_Typedef in STM32Cube_FW_F3_V1.3.0 while STM32Cube_FW_F2_V1.2.0 drops BSRRL/BSRRH in favour of BSRR as used in the other headers This ma...

STM32F0 Curious ADC behaviour

Posted on October 11, 2015 at 15:07This is relation to my previous forum post [DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/STM32F030F4%20ADC%20strange%20behavio...

srdjan by Associate II
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__HAL_TIM_GET_FLAG

Posted on October 27, 2015 at 11:37hello everybody !!! I'm using ''__HAL_TIM_GET_FLAG'' on my STM32l051K6 for detect an overflow on my timer, but i don't know how much machine cycle it takes ?Could someone tell me how this function uses machine cycl...

Bug in STM32Cube FreeRTOS wrapper (with fix)

Posted on July 23, 2015 at 12:19Hello. There is a bug in the cmsis_os.c file: at line 757:   return xQueueCreate(queue_def->queue_sz, (uint32_t) sizeof(queue_def->item_sz)); sizeof(item_sz) is always 4, so all queues are created with element size = ...

konovod by Associate
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  • 2 replies
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TIM triggered DMA to USART2 fires only once.

Posted on October 26, 2015 at 14:47 On an stm32f411 Nucleo, I'm trying to generate a DMA request to transfer data from memory to the USART2 data register at every compare event (when CCR1 matches TIM3_CNT). To this end, I have, in order: ...

sohail by Associate II
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  • 2 replies
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STM32F030R8 Timer 3

Posted on October 26, 2015 at 16:44ST Community - An application has the current design parameters for a Cortex M0 device STM32F030R8:CLK: 20MHz external xtal on (PF0 & PF1 RCC OSC) internal PLL to 40MHz (25ns).Regarding Timer 3, I want to create a ...

Cortex M0 - STM32F030R8 Internal Timers and ADC

Posted on October 26, 2015 at 16:18ST Community - An application has the current design parameters for the STM32F030:CLK: 20MHz external xtal on (PF0 & PF1) internal PLL to 40MHz. Complete. MCO: 40MHz CLK/2 = 20MHz out on PA8 (MCO alternate function...