• no FPU in memset
    How can I tell the linker/compiler not to use memset/memcpy function which use FPU registers? For example: SCIOPTA allows to limit the use of the FPU for certain tasks (to improve task-switching). Tasks...
  • FPU problem
    When I enable FPU in compiler option,My equation result is wrong. 0 + 0 = 0 but I see -107374176 ! (byte view: 0xCCCCCCCC) Code: typedef struct { uint16_t year; uint8_t tA; uint8_t tB; uint8_t...
  • M4F FPU auto-stacking
    I'm debugging Freescale K60(Cortex-M4F). Before main() FPU(Floating-point uint) is enabled, while the hardware function of "FPU registers auto-stacking on exception entry" is disabled. The source code...
  • FPU usage on MCBSTM32F400 with uVision
    Dear sir or madam, Due to a project using your STM32F407 microcontroller I’ve recently purchased the evaluation board MCBSTM32F400 and downloaded the MDK-ARM lite IDE uVision 4.70.0.0. So far...
  • STM32F407VG RTX, FPU Hard fault
    Hi, I am testing RTX task and I always get hard_fault when I use FPU and float. Please help, what am I missing? This is my code: #include <RTL.h> #include "stm32f4_discovery.h" #include...