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ARM Accredited MCU Enginner

Posted on January 08, 2015 at 07:09A Question and Answer Book ''ARM Accredited MCU Enginner''http://www.amazon.com/dp/B00R9BYWWA #arm-cortex-accredited-mcu-aame

Multiple ST-link Debuggers

Posted on December 23, 2014 at 12:59Hi, I'm debuging a network application running across multiple Nucleo boards with multiple instances of the Keil IDE. Every time a target leaves the debugger the ST-Link connection is lost and reconnection becomes...

occam by Associate II
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USART interrupt problem

Posted on January 07, 2015 at 15:31Why stm32f030 not get received interrupt for the third time ....when it get it for the two times........stm32f407 is sending the 3 packet 2 packet it is receiving fine but the third packet it is not receiving ...I ...

sanjib by Associate III
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stm32 100 I2C peripheral not sending address

Posted on January 07, 2015 at 12:51 I am trying to use the I2C peripheral on the STM32 I am finding that about half the time the address isn't being sent. What happens is that the data line is going low (start condition is set) the clock line go...

SPI clock phase setting

Posted on January 06, 2015 at 09:26I am using STM32L152 part to talk to a digital accelerometer using SPI. The SPI signal timing diagram for the accelerometer is illustrated in the attached figure. Looking at the diagram, it is clear that the spi cl...

bnp979 by Associate III
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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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