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What's ETH_PPS_OUT in STM32F4x9 MAC.

Posted on September 12, 2013 at 21:48In ethernet MAC block, Port PB5 is assigned as ETH_PPS_OUT. I searched for a while and can find the usage of it. Is it MII_TX_ER?Sink.

tonyyu by • Associate II
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STM32L communication between 2 USART

Posted on March 25, 2015 at 17:39Hello all, I 'm novice and using STM32L152RE to do a communication between 2 USARTs I use USART2 for recieving GPS Data and I would like to echo all recievied data without parsing on PC Terminal by using USART3 bu...

kitjazax by • Associate II
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INTERFACE STM32 TO SRAM USING GPIO PINS

Posted on April 01, 2015 at 13:39Hi all,        We are trying to interface a 4M  SRAM (IS62WV25616ALL) to STM32F407IGT6 through GPIO Pins of the controller. We are able to write data sucessfully into the SRAM but we are facing difficulty in READING ...

TIM1 DMA2 Request while in DMA Memory-Memory mode

Posted on March 30, 2015 at 02:07Hello friends, I'm messing around with the f4 discovery trying to get Timer 1 to send a DMA transfer request to DMA2, which would transfer a whole GPIO input register (GPIOx_IDR) to somewhere in memory. I was able to...

muffin by • Associate
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SD init after wake up from standby

Posted on April 06, 2013 at 15:06Hello.  I have a data logger on my board and i use a standby mode. When i start a program and  i put the uSD card into the slot before, all work fine for the first cycle.When i  go from the standby and i want to init...

jspika by • Associate II
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Getting ADC working on STM32f334 discovery

Posted on March 31, 2015 at 05:09Hi all,I am trying to get ADC working on the STM32f334 discovery board, using the HAL drivers, however there isn't enough documentation on the HAL drivers to help me (''Description of STM32f334 HAL Drivers.pdf'' does...

previn by • Associate II
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Bug IN HAL STM32L0xx ?

Posted on March 25, 2015 at 13:18 Hi, I think there is a bug in the HAL layer of ST. (version 1.1.0) My code is very simple: I initialize two GPIO (PB4 and PB5) in Interrupt. GPIO_InitTypeDef GPIO_InitStruct; // Configure the...

foujanet by • Associate II
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STM32 with EEPROM

Posted on March 31, 2015 at 17:19Why doesn't ST embed an EEPROM in STM32F4xx or STM32F1xx series?Thanks.

STM32 AHB multilayer bus arbiter

Posted on April 01, 2015 at 18:22Hi I read the AN4031 application note ''Using the STM32F2 and STM32F4 DMA controller''. In this document it is mentioning that the AHB Multi layer bus has an Arbiter on each layer, which handles the bus arbitration ...

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