Posted on May 17, 2011 at 13:08Thanks for your replies. @kjepsen: one possible problem is due to a Cortex limitation: you cannot use DMA accesso to FSMC memory map while using that also in normal access. Check http://www.st.com/stonline/products/lit...
Posted on May 17, 2011 at 13:08I'm using SDIO in DMA mode, but sometimes it lacks some data and driver hangs into SD_ReadBlock or SD_WriteBlock onto this code: Quote:while (DMA_GetFlagStatus(DMA2_FLAG_TC4) == RESET) {}Looking on TransferError status...
Posted on May 17, 2011 at 13:07I think I found the solution for the second problem: maybe this behavior is due to the FSMC internal FIFO, in which write operation are queued. But another question is regarding your way to connect the SSD1906 to the S...
Posted on May 17, 2011 at 13:07Hi sjo, we're trying to interface a STM32F103Z to a SSD1906, but we have a problem when reading a register using byte access: even if the code contains a LDRB instruction, both NBL0 and NBL1 lines remain to low level, ...
Posted on May 17, 2011 at 12:22I'm modifying the VirtualCOM demo to support BULK transfer with double buffer feature. Actually I'm working on the transmission side, from Cortex to PC. I'm wondering how to copy character into the transmission buffer....
