Posted on August 08, 2012 at 21:49Thanks for your reply! Power Supply is 3,3 V At a other PCB we have an unaligned hard fault @ ldr r4, [pc, #108] (first assembler instruction from the assembler code above) We cooled down the oscillator (slow down f...
Posted on August 08, 2012 at 21:02The traces between the µC and the VCAPs are ~3mm. We have replaced several times the VCAPs. We also added a resistor to increase the ESR. When we change the flash wait state from 3 to 4, the hard fault doesn't occur...
Posted on August 08, 2012 at 20:03It is a custom board. µC STM32F205VET6 Rev Y VCAP 2.2 uF 10 V 0603 We have 3 Boards tested. 2 Boards have this problem. The Hard Fault occurs occasionally (not every time). ldr r4, [pc, #108] <-- Value 0x40020C00 ...
