STemWin528

[boris239955_stm1_st]

Posted on September 14, 2016 at 09:39

Hello, I'm using stm32f746 with cmsis-rtos. When I start STemWin without timer I didnt have any problem with showing information on the screen, but when I start one of the timer of MCU, my screen became white. I call GUI_Exec on every 1ms with thread

static void GUIThread(void const * argument)
{
// Gui background Task
while(1)
{
GUI_Exec(); /* Do the background work ... Update windows etc.) */
}
}

My program enter in this function, but there is no information on the screen.

[slimen]

Posted on September 14, 2016 at 18:27

Hi,

Did you follow the chapter ''Execution Model: Single Task / Multitask'' in the emWin manual ?Are you using GUI_X_OS.c file needed for FreeRTOS with according functions (as mentioned in the 

http://www.st.com/content/ccc/resource/technical/document/application_note/54/c9/95/42/8c/0b/43/69/DM00089670.pdf/files/DM00089670.pdf/jcr:content/translations/en.DM00089670.pdf

 the file GUI_X_FreeRTOS.c can be used as a template) ? Regards

[boris239955_stm1_st]

Posted on September 15, 2016 at 07:59

Hello, yes I follow this chapter. But in my project there is no file with such name - GUI_X_FreeRTOS.c . This is my settings for RTOS

#define configUSE_PREEMPTION 1
#define configUSE_IDLE_HOOK 0 
#define configUSE_TICK_HOOK 0 
#define configCPU_CLOCK_HZ ( SystemCoreClock )
#define configTICK_RATE_HZ ( ( TickType_t ) 1000 )
#define configMAX_PRIORITIES 8 
#define configMINIMAL_STACK_SIZE ( (uint16_t) 128 ) // 256
#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 30 * 1024 ) ) // 30
#define configMAX_TASK_NAME_LEN ( 16 )
#define configUSE_TRACE_FACILITY 0 
#define configUSE_16_BIT_TICKS 0
#define configIDLE_SHOULD_YIELD 1
#define configUSE_MUTEXES 1
#define configQUEUE_REGISTRY_SIZE 8
#define configCHECK_FOR_STACK_OVERFLOW 0
#define configUSE_RECURSIVE_MUTEXES 1
#define configUSE_MALLOC_FAILED_HOOK 0
#define configUSE_APPLICATION_TASK_TAG 0
#define configUSE_COUNTING_SEMAPHORES 1
#define configGENERATE_RUN_TIME_STATS 0
#define configAPPLICATION_ALLOCATED_HEAP 1
/* Co-routine definitions. */
#define configUSE_CO_ROUTINES 0
#define configMAX_CO_ROUTINE_PRIORITIES 2
/* Software timer definitions. */
#define configUSE_TIMERS 1
#define configTIMER_TASK_PRIORITY 4
#define configTIMER_QUEUE_LENGTH 10
#define configTIMER_TASK_STACK_DEPTH 512
/* Set the following definitions to 1 to include the API function, or zero
to exclude the API function. */
#define INCLUDE_vTaskPrioritySet 1
#define INCLUDE_uxTaskPriorityGet 1
#define INCLUDE_vTaskDelete 1
#define INCLUDE_vTaskCleanUpResources 1 
#define INCLUDE_vTaskSuspend 1 
#define INCLUDE_vTaskDelayUntil 1
#define INCLUDE_vTaskDelay 1
#define INCLUDE_xTaskGetSchedulerState 1
#define INCLUDE_uxTaskGetStackHighWaterMark 0
/* Cortex-M specific definitions. */
#ifdef __NVIC_PRIO_BITS
/* __BVIC_PRIO_BITS will be specified when CMSIS is being used. */
#define configPRIO_BITS __NVIC_PRIO_BITS
#else
#define configPRIO_BITS 4 /* 15 priority levels */
#endif
/* The lowest interrupt priority that can be used in a call to a ''set priority''
function. */
#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY 0xf
/* The highest interrupt priority that can be used by any interrupt service
routine that makes calls to interrupt safe FreeRTOS API functions. DO NOT CALL
INTERRUPT SAFE FREERTOS API FUNCTIONS FROM ANY INTERRUPT THAT HAS A HIGHER
PRIORITY THAN THIS! (higher priorities are lower numeric values. */
#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY 5
/* Interrupt priorities used by the kernel port layer itself. These are generic
to all Cortex-M ports, and do not rely on any particular library functions. */
#define configKERNEL_INTERRUPT_PRIORITY ( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
/* !!!! configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to zero !!!!
See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html. */
#define configMAX_SYSCALL_INTERRUPT_PRIORITY ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
/* Normal assert() semantics without relying on the provision of an assert.h
header file. */
#define configASSERT( x ) if( ( x ) == 0 ) { taskDISABLE_INTERRUPTS(); for( ;; ); } 
/* Definitions that map the FreeRTOS port interrupt handlers to their CMSIS
standard names. */
#define vPortSVCHandler SVC_Handler
#define xPortPendSVHandler PendSV_Handler
#define traceTASK_SWITCHED_IN() extern void StartIdleMonitor(void); \
StartIdleMonitor()
#define traceTASK_SWITCHED_OUT() extern void EndIdleMonitor(void); \
EndIdleMonitor()
This is the settings of STemWin
 #ifndef GUICONF_H
#define GUICONF_H
/*********************************************************************
*
* Multi layer/display support
*/
#define GUI_NUM_LAYERS 2 /* Maximum number of available layers */
#define OS_SUPPORT
/*********************************************************************
*
* Multi tasking support
*/
#ifdef OS_SUPPORT
#define GUI_OS (1) /* Compile with multitasking support */
#else
#define GUI_OS (0)
#endif
/*********************************************************************
*
* Configuration of touch support
*/
#ifndef GUI_SUPPORT_TOUCH
#define GUI_SUPPORT_TOUCH (1) /* Support touchscreen */
#endif
/*********************************************************************
*
* Default font
*/
#define GUI_DEFAULT_FONT &GUI_Font6x8
/*********************************************************************
*
* Configuration of available packages
*/
#define GUI_SUPPORT_MOUSE (1) /* Support a mouse */
#define GUI_WINSUPPORT (1) /* Use window manager */
#define GUI_SUPPORT_MEMDEV (1) /* Memory device package available */
#define GUI_SUPPORT_DEVICES (1) /* Enable use of device pointers */

I copy the library from demostration project of stm32f746 - discovery and I cant see the code of STemWin.