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Forum Posts

I2C configuration

Posted on February 15, 2013 at 17:35Hi, I'm using CMSIS to set up an I2C driver.  As an example device I have an EEPROM - tried and tested on PIC18s, so I've been through the learning curve for I2C - just getting it going on STM32. Configured CLS an...

hrobinson by Associate II
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STM32F30x - ADC Interrupt

Posted on February 15, 2013 at 08:14Hi, I am new to this STM32F30x series microcontrollers. For my application i am using the channels ADC12_IN6 and ADC12_IN7 in Interrupt mode. (Without DMA).These GPIO's are configured as a input pins(PC0 & PC1) a...

Selecting the best/fastest communication method CPU->CPU

Posted on February 11, 2013 at 01:30Hi All, I'm making a PCB that has two STM32F4 DSP chips across an isolation barrier. I need the two chips to communicate as fast as possible, with the one chip (slave) passing new values to the other chip's (maste...

Unexpected I2C Status value of 0x84

Posted on February 15, 2013 at 16:31I am receiving an unexpected status value from within my I2C ISR. The value is 0x84 (TXE and BTF bits set). For now, I am only doing i2c master transmits, (I have a multimaster config but the other slave is not se...

saccrue by Associate II
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Explaining STM32F4 to a lay person is frustrating

Posted on February 15, 2013 at 04:56I am currently migrating from F1 to F4. Am getting very frustrated. After many reviews of my presentation on F4, I get feedback that : to a lay person, the current project deliverables does not warrant 12 weeks of...

skillet by Associate II
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  • 3 replies
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STM32F4 Discovery SPI Ethernet

Posted on February 14, 2013 at 14:54Hello,   I need to connect an ENC28j60 module to STM32 Discovery. As there is some peripherals on board uses SPI for communication, i dont know which is the free to use SPI. I hope the SPIs used by peripherals is ...

problem on PC0 of stm32f4discovery

Posted on February 13, 2013 at 09:40Hi guys, last week i am still able to use my pc0 as input, now he is rebelling it is configured as input but it has an output of 2.25v I dont understand why

xtian by Associate II
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STMF103RET6 program through serial bootloader

Posted on February 14, 2013 at 09:39Hi I current have my stm32f1 soldered onto a breakout board, all the pins are soldered correctly, boot 0 is tided to high, boot1 is tied to low, then i reset (1 then 0 then 1). i'm my rx and tx are on pa9 and pa10...

tylere by Associate II
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Connect running target to Keil uVision debugger / STMStudio

Posted on February 14, 2013 at 21:02Hi, is it possible to connect the Keil uVision debugger to a running target (without disturbing / resetting it)? It seems to work with STMStudio, just unfortunately I think my AXF file is too large for STMStudio (...

flyer31 by Senior
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capturing frequency

Posted on February 13, 2013 at 18:40Hi guys I'm working on a project, I need to fine filing edge of a stream with 4.000 Mhz  frequency.This is my code and IRQ sub program:  GPIO_InitTypeDef GPIO_InitStructure;  NVIC_InitTypeDef NVIC_InitStructure;  ...

imanpakii by Associate III
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  • 4 replies
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