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DMA to SPI hangs at second transfer

Posted on January 01, 2012 at 22:58When I use DMA to trasfer data from memory to SPI2 everything works well util I try do another trasfer, then I reload NDTR register I try enable DMA, but nothing happens, there are no errors in setatus register, ju...

Problem with programming protected device

Posted on December 19, 2011 at 00:07Hello. I have problem with upgrading program in my own bootloader. When procesor is not read-out protected, everything is going ok (verify says ok). Problem occurs when I set <Read-Out Protection> in RFlasher7 (u...

wadi by Associate II
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MCBSTM32C dev board CODEC

Posted on December 29, 2011 at 21:37I have a MCBSTM32 board which uses the STM32F107 and includes a CS42L52 audio CODEC chip on board. I'm trying to create a 12 MHz clock input for the CODEC using TIM3 from the STM32. So far I have succeeded in gene...

reffahcs by Associate II
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SWD on STM$32f4 discovery

Posted on December 16, 2011 at 13:12Hi all,  I am trying to program the discovery board of stm32f4 using SWD via the Cn3 connector. Does anyone have any experience in that.. Arun

Low freq PWM output

Posted on November 16, 2011 at 15:11Hello, I try the examples about PWM input form st.com, but it works only for big frequency signals. (like it is said in readme.txt). What should I change with settings TIM4 for example, to be able to check the low...

csdominik by Associate III
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instruction timing

Posted on December 27, 2011 at 08:50I'm debugging on an Olimex STM32-P103.  I think I have the PLL set up at 8 times the 8Mhz crystal. If so, then instruction timing is pretty poor.  Here's my loop:ldr r0, =portcldr r0, [r0]mov r1, #0x80mov r2, #0lo...

smead by Associate II
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  • 5 replies
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J-Link suport to STM32F4xx

Posted on December 29, 2011 at 09:10I downloaded the IAR EWMARM V6.30 which support STM32F4 series. But my IAR J-link doesn't support this cpu and I can't download and debug the code. Anyone can tell if I need to update the J-link and how? Thanks!

jacy by Associate
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STM32F10x Code execute in external nor flash?

Posted on December 29, 2011 at 04:33In STM32F10x NOR_CodeExecute Project. whenan interrupt occursinthe externalNOR Flash Code Area,  The interrupt is handled by Internal Flash Code. I don.t know why.

gforest by Associate
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Temperature sensor on ADC2

Posted on December 27, 2011 at 17:34Hi everybody. I've just a little question : does anyone knows if the internal temperature sensor of an STM32F107 can be read with ADC2. In the reference manual it's written ''The temperature sensor is internally c...

camille by Associate II
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