Posted on June 29, 2016 at 11:17i have generate sample usb-cdc code for stm32F103c8 with CubeMx. The real code generate hardfaults in disconnect from usb. This is the Problem in usbd_conf.c:
-------------------------------------
/** * @brief static single allocation. * @param size: size of allocated memory * @retval None */
void
*USBD_static_malloc(uint32_t size) {
static
uint32_t mem[(
sizeof
(USBD_CDC_HandleTypeDef)/
4
)+
1
];
//On 32-bit boundary
return
mem; }
/** * @brief Dummy memory free * @param *p pointer to allocated memory address * @retval None */
void
USBD_static_free(
void
*p) { free(p); // !!!!!!!!!! error !!!!!!! } ---------------------------------------------------
USBD_static_malloc map memory to static a static variable. USBD_static_free call free(void *)! This corrupt the memory from p.
(sorry, my english ist not good)
