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STM32 and NAND flash ?

Posted on March 26, 2014 at 11:36Guys, Does R/B pin on Nand flash needed on the software ? I can't find R/B pin on GPIO definition, Anyone knows ? thanks #nand

NVIC interrupts on two ports with same pin number

Posted on September 19, 2013 at 17:37Hello everybody,Is it possible to link same pin number of different GPIO ports on the same EXTI line ? For example, create an interrupt on line_0 for the GPIO pin A0 and the pin B0. It seems impossible to achieve...

STM32F429 LTDC 1-bit video

Posted on March 31, 2014 at 02:51I am experimenting with the STM32F429 and wish to use the LCD-TFT controller (LTDC).I am interested in generating monochrome 640x480 VGA video and hence only need 1-bit output rather than 8-bit RGB. Does anyone know ...

Multiple GPIO Interrupts

Posted on March 31, 2014 at 02:29Hello, I am trying to activate the interrupts on PC4-7 so that a flag will appear whenever these pins are set high. I have the base structure of the code completed, however whenever I try to place a break point to se...

shrum by • Associate
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STM32F4 SPI DMA Double Buffer issue

Posted on February 17, 2014 at 16:07 Hi, I'm using the F407 (Discovery) as a SPI-Slave with DMA enabled and a ''data ready'' signaling line. I'm currently trying to transfer data in dual buffer mode (the host cpu might also send configura...

lukas2 by • Associate II
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STM32L1 not writing to EEPROM after exiting STOP

Posted on March 29, 2014 at 02:21 Hi, I'm entering in STOP mode with the command: PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI); But, when it resume from STOP, I cannot write to EEPROM anymore. I'm unlock...

Discovery USB OUT Report example

Posted on October 29, 2013 at 15:56Hello everybody, I'm looking for a working example using OUT Endpoint on STM32F4 Discovery board. I have no success with it. I modified Demo sample for an OUT Endpoint and Custom usage, and try to send one byte rep...

DMA won't get enabled

Posted on March 29, 2014 at 17:53 Hello stmGuys. I'm having a problem configuring my DMA. I've tried everything I can imagine and it still doesn't work. I want the DMA to transfer data from a memory array to the GPIOD->ODR register. Here is my DMA...

joecarlhr by • Associate II
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What triggers WFI exit?

Posted on March 30, 2014 at 08:39Hello,I want to use WFI, but I'm wondering how it works, what triggers the WFI to exit low power.I've defined systick for 1uSec (I'll use it later for some delays).I've defined timer2 for 100mSec.I need to do some ca...

zoharr by • Associate II
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  • 1 replies
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Different triggers on the same clock

Posted on March 28, 2014 at 21:35 Hello, For a project I am working on I would like to generate interrupts on both edges of the HSI clock, for synchronization purposes. The sysclk is based on the main PLL, sourced from HSE. ...

matteo by • Associate II
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