Development system hangs when DMA active

[benjaminmortensen9]

Posted on November 05, 2007 at 06:09

Development system hangs when DMA active

[benjaminmortensen9]

Posted on May 17, 2011 at 12:17

Hello

Perhaps this is not a Cortex only problem, but I try to post it here first.

I use a STM32F103 (on a Keil board) my development system is IAR embedded workbench ver 4.42. I have an application that uses DMA to communicate on SPI.

Most of the time everything is working fine, but sometimes (I suspect it is when I have shut down debugging while the DMA was active) I can not get in touch with the processor again. So when I try to flash the new SW, the system just hangs. The only solution I have found so far is to remove power from the board and plug it in again.

Has anybody observed a similar problem, and come up with a more elegant solution?