Posted on May 17, 2011 at 09:42The culprit is 00003910 E02C2C94 MLA R12, R4, R12, R2 . This is generating a reserved address(between 0x80000000 - 0xFC000000) which is stored in R12 and hence the next instruction 00003914 E5DC4000 LDRB R4, [R12, #+0...
Posted on May 17, 2011 at 09:42I am encountering a Data abort error in following piece of code at 00003914(in bold). It's not always that it happens, but randomly. Could somebody please tell me why this happens and how to fix it. In general is there...
Posted on May 17, 2011 at 09:42Set-up: We use STR9 eval board(STR912-SK) along with STR91x USB firmware library with Virtual Com Port example by modifying the usb_desc.c file to fit our requirement of one Bulk IN and one Bulk OUT endpoints. Please f...
Posted on May 17, 2011 at 09:35Hi We are trying to use USB bulk transfer(STR91x) for one of our applications. Requirement: We should be able to transfer a series of blocks of data(typ.2KB/transfer) to STR91x eval board, intimate the eval board and w...
Posted on December 03, 2004 at 11:11Hi All, I have a strange problem. I have interfaced a Parallel port printer to an ST7 controller(through ports D and F and 74HCT244). It's working OK. But the problem is when I switch off the power to the MCU and ...
