STM32 MCUs Products

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Forum Posts

How to declare a big array in external SDRAM?

Posted on January 06, 2015 at 14:03I use STM429 and 128Mb SDRAM and want to decare a big array in keil. How to declare it? How to let keil linker know the array is in external RAM? I defines uint8_t temp[1024*1024], but linker error L6406E: no space...

ray by Associate II
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Jumpers for STM324x9I-EVAL I/O connectors?

Posted on January 06, 2015 at 15:18These are the 0.05'' (1.27mm) pitch connectors CN6, CN7, CN11 and CN12. The jumpers I normally use on 0.10'' pitch headers are too big to fit. I've done some web searching and not found any jumpers that size. What ...

hbarta2 by Associate III
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  • 2 replies
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Unstable working of I2S on STM32

Posted on August 08, 2013 at 21:17I faced a critical problem of i2s of STM32.I'm developing a simple system for i2s level meter.MCU - STM32F103RCT6 with external X-tal(12MHz), 72MHz of running clock Inpit Audio - 48KHz, 16bits, stereo i2s digital au...

cubefilm by Associate
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Vector table relocation

Posted on January 05, 2015 at 17:44I have relocated the Vector Interrupt Table as follows         *((volatile uint32_t *)0xE000ED08) = 0xFFFFFF00 & 0x08004400;                 // jump to bootloader         pVector = GetBootStartEntry();         asm ...

ivesely by Associate II
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  • 4 replies
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Code generation tool for Std. Peripheral library?

Posted on December 20, 2014 at 16:41Hi everyone,I was wondering if there is a tool like STM32CubeMX to generate initialization code with the standard peripheral library.The Cube is too new and still needs to mature but i do like the STM32CubeMX tool...

STM32L0 GPIOA_MODER A4 default value

Posted on January 06, 2015 at 11:20Hello, the STM32L0 series sets nearly all GPIO to analog mode as default. This does make sense opposed to the ''default to input'' on other family that may result in high current draw with floating inputs. Only Por...