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Forum Posts

SDIO CTIMEOUT: Command response timeout

Posted on April 20, 2015 at 01:44I'm using library only as a reference, so am writing simple test codes to understand guts of STM32F4xx. It is turn of SDIO.So far I'm able to read and write single block to SDHC card. My question to you is what shoul...

Changing DC on a PWM output with HAL

Posted on April 19, 2015 at 02:13Hello, I'm using a nucle 411 to test a RC servo driver. Si I configure 4 TIM3 channel to output PWM signal. Everithing is Ok, except that I can't finde a function to change PWM Duty Cycle. Is there any? BR!

I'm trying to write eeprom to 32-bit variable

Posted on April 19, 2015 at 15:58 How do I assign the variables a1 and a2 x ? I want to read the typed value unsigned long x; //readings value unsigned long a; //value unsigned int a1; //values written unsigned int a2; //values ...

kemal by Associate II
  • 465 Views
  • 2 replies
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HardFault with NOCP flag while FPU is enabled

Posted on April 18, 2015 at 23:12I can't figure out the cause of the Hard Fault: Chip: STM32F405RG Instruction (gcc generated program): vldr s0, [r4] r4 contains an address in the main RAM and aligned (0x2....4) Stepping over it results in a jump to...

i23 by Associate II
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  • 1 replies
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conversion of decimal/hexadecimal in ascii characters

Posted on April 18, 2015 at 23:58Hi,I am writing data on my sd card through spi in stm32f429zi controller using library of fatFs by chan. But after writing the data when i check the file it shows strange characters instead of the data entered. Later...

aatif by Associate II
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  • 1 replies
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RTC WakeUp Timer interrupt STM32L100

Posted on April 15, 2015 at 20:34 Hi, I have a problem with interrupt of WakeUp Timer. Never set flag for WakeUp interrupt. WakeUp timer is on EXTI EXTI of interrupt is set for rising edge and and line Can you help me? Thanks a lo...

chiptron by Associate II
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  • 3 replies
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STM32F030C6 access GPIOD fail, why?

Posted on April 15, 2015 at 16:35During init phase of my program I init all GPIO (A, B, C, D & F) register of STM32F030C6  with some default value. And during access to GPIOD on 0x48000C00 I get exception. If I disable GPIOD everything work as expec...

yuriy by Associate II
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  • 6 replies
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NUCLEO-F411RE: Buying from South Africa

Posted on April 17, 2015 at 08:22Hello everyone,I am from South Africa and would like to get my feet wet (so to speak) with the STM32 MCUs. I want to buy the NUCLEO-F411RE board online directly from ST. I was wonder if there are any fellow South Afr...

STM32F429I LTDC SDRAM and screen jitter/flicker

Posted on April 17, 2015 at 15:34 Hi folks, We are experiencing screen flicker (jitter?) with a setup consisting of an STM32F429I with external SDRAM frame buffer (part similar or identical to what is on the STM32F429I-DISCO board) and an ext...

hbarta2 by Associate III
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M0 GPIO with DMA max speed ?

Posted on April 16, 2015 at 14:46Hi, I'm using an stm32f072 part, trying to toggle 8 GPIO pins with DMA from memory. The DMA is plugged to a Timer (2) update event which has 48MHz using HSI48 (no crystal for now). I have two issues currently : - HS...