fsl_os_abstraction_threadx

[johvis]

Hello Everyone 
I am new to iMXRT1166 eval
MCUXpresso SDK 2.x_MIMXRT1160-EVK

there is an example "evkmimxrt1160_shell_cm7" which works fine. 
It runs ins "baremetal" mode. 

I can see thant "fsl_shell" supports OS like Free RTOS and "OSA"  (OS abstraction)
There is a packet in the SDK "osa", which seems to be correct. 

I would like to use it with AZURE RTOS  threadx

When enabling, it refers to "fsl_os_abstraction_threadx.c"

This is not part of the SDK.

Is there an instance of these files somewhere?

I found this one :
https://github.com/Masmiseim36/nxpSDK/blob/master/components/osa/fsl_os_abstraction_threadx.h

but it seesm to be incomplete. 

thank you 
Johannes

[johvis]

I made shell work with Azure RTOS. 
I found a problem in fsl_shell.c

typedef struct _shell_context_handle
{
    list_label_t commandContextListHead; /*!< Command shellContextHandle list queue head */
    serial_handle_t serialHandle;        /*!< Serial manager handle */
    uint8_t
        serialWriteHandleBuffer[SERIAL_MANAGER_WRITE_HANDLE_SIZE];   /*!< The buffer for serial manager write handle */
    serial_write_handle_t serialWriteHandle;                         /*!< The serial manager write handle */
    uint8_t serialReadHandleBuffer[SERIAL_MANAGER_READ_HANDLE_SIZE]; /*!< The buffer for serial manager read handle */
    serial_read_handle_t serialReadHandle;                           /*!< The serial manager read handle */
    char *prompt;                                                    /*!< Prompt string */
#if (defined(SHELL_NON_BLOCKING_MODE) && (SHELL_NON_BLOCKING_MODE > 0U))

#if defined(OSA_USED)

#if (defined(SHELL_USE_COMMON_TASK) && (SHELL_USE_COMMON_TASK > 0U))
    common_task_message_t commontaskMsg; /*!< Message for common task */
#else
    uint8_t event[OSA_EVENT_HANDLE_SIZE] ; /*!< Event instance */
    uint8_t taskId[OSA_TASK_HANDLE_SIZE] ; /*!< Task handle */
#endif

#endif

#endif
    char line[SHELL_BUFFER_SIZE];                          /*!< Consult buffer */
    char hist_buf[SHELL_HISTORY_COUNT][SHELL_BUFFER_SIZE]; /*!< History buffer*/
    char printBuffer[SHELL_SPRINTF_BUFFER_SIZE];           /*!< Buffer for print */
    uint32_t printLength;                                  /*!< All length has been printed */
    uint16_t hist_current;                                 /*!< Current history command in hist buff*/
    uint16_t hist_count;                                   /*!< Total history command in hist buff*/
    enum _fun_key_status stat;                             /*!< Special key status */
    uint8_t cmd_num;                                       /*!< Number of user commands */
    uint8_t l_pos;                                         /*!< Total line position */
    uint8_t c_pos;                                         /*!< Current line position */
    volatile uint8_t notificationPost;                     /*!< The serial manager notification is post */
    uint8_t exit;                                          /*!< Exit Flag*/
    uint8_t printBusy : 1;                                 /*!< Print is busy */
    uint8_t taskBusy : 1;                                  /*!< Task is busy */
} shell_context_handle_t;

uint8_t taskId[OSA_TASK_HANDLE_SIZE]  is used to host a struct of TX_THREAD. 
I don't know, why this placeholder of type uint8_t is necessary, but the effect is, that the portion "taskId" ends up on a non-aligned memory address and causes the task creation to crash 

this fixes the issue, (in fsl_shell.c)

#else
    uint8_t event[OSA_EVENT_HANDLE_SIZE] __attribute__((aligned (4))); /*!< Event instance */
    uint8_t taskId[OSA_TASK_HANDLE_SIZE] __attribute__((aligned (4))); /*!< Task handle */
#endif

 this is working now. 

I attached the whole project. 
It uses the missing OSA abstraction files for threadx from here:
https://github.com/Masmiseim36/nxpSDK/blob/master/components/osa/fsl_os_abstraction_threadx.h

Johannes