Posted on July 15, 2014 at 22:16Hi, With the Keil qVision v5 Logic Analyzer I'm tracing (ST-Link) an single ADC value which is updated every 10 microsecond. Directly after starting the trace I get ''Trace: SW Buffer Overrun''. Is this a ST-Link lim...
Posted on July 15, 2014 at 17:21Hi,I am currently implementing a USART rx driver on an STM32F303xxx using a receive DMA buffer. The motivation to use DMA is to allow reception of bursty high speed (8Mbps) data. [note that using HW flow control doesn...
Posted on July 15, 2014 at 17:12I'm trying to understand how this function should be used on an F405 chip. The code that calls calloc is all generated from a simulink fuzzy controller model so I'm confident it's correct in terms of code.The program ...
Posted on July 15, 2014 at 17:19Hello again. I've two usarts in use on my board. One, Usart1 is connected to the console and the other usart2 is connected to a modem chip. When I enable the usart2 interrupt using the NVIC commands, there is no outpu...
Posted on July 15, 2014 at 16:18DearI have read Ch14.1 Systicks the definition guide of Cortex M3 2nd. But I still confuse it. If I take the Systicks Reload = 65536, the corresponding time is 65536 * 168 MHz * 1e9 ?Am I correct? Thanks
Posted on July 15, 2014 at 17:26DearI have read Ch16.2 Trace component DWT, the definition guide of Cortex M3 2nd. But I still confuse it. If I take the CYCCNT, the corresponding time is CYCCNT * 168 MHz * 1e9 ?Am I correct? Thanks
Posted on July 15, 2014 at 14:57Hi all,I saw that the current practice is to compile all code at 0x08000000 offset. This is fine for me, but now I have an application with a lot of constant tables in flash, and more important, a ''host'' application...
Posted on July 15, 2014 at 17:24How to convert the DWT CYCCNT to ns ?
Posted on July 15, 2014 at 12:03 Hi everyone, I'm working on a STM32F427 with CoIde on Windows Vista for a long time now without any issue. Since yesterday my debugger became very slow, very very slow. when i hit the ''pause'' button it takes approx...
Posted on July 09, 2014 at 18:40I'm having some problems with DMA transfers apparently stalling on our STM32F405ZGT6 board. The problem seems to only happen when I have multiple streams running. So, I have Stream3 using SDIO, with 32 bit wide access...
