Error Number

Detailed explanations of the error message. More...

Detailed explanations of the error message.

Introduction

If some detectable problem occurs when the system is running, it is possible that an error number will be sent through UART1 (Bluetooth) with an override priority. This page provides the details about these error number.

<<ERROR-01>> Memory Allocation Failed

A malloc within this library has returned NULL. This is typically caused by a fully occupied heap. Currently, this library need to allocate extra memory when a trigger or a timer is being created.

• Reduce the amount of dynamically allocated memory.
• Check for memory leaking (e.g. 'malloc'ed but not 'free'ed).
• Try increasing the heap size in the project configuration in MPLABX (e.g. from 512 to 768).

<<ERROR-02>> Process Timeout

The program entered a process for too long (>50 ms). This is typically caused by a polling loop without placing any el_process_wait or el_process_cooperate inside.

• Polling loops (a 'while' loop waiting for some condition) typically need one el_process_cooperate inside its loop body.
• Find other problematic loops inside those functions used in a process.
• Placing el_process_cooperate in appropriate place of any large loops (nested 'for' loops are most susceptible).

<<ERROR-03>> Process Launching Failed

This error is usually caused by launching a new process when the number of running proceses is at maximum. Note: a process finished running when its entry function returns.

• The system can handle 7 processes at most. Do not cross that line.
• Use triggers instead of infinite 'while' loop to do something repeatedly.

<<ERROR-04>> Timer Callback Function Timeout

The program entered a timer's callback function for too long (>50 ms).

• Check for problematic loops.
• Try reducing the amount of work done inside the callback function of a timer.

<<ERROR-05>> Timer Creating Failed

A el_create_timer returned NULL.

• Check whether each of the created timers is deleted.
• The system can handle 10 timers at most. Do not cross that line.

<<ERROR-06>> Trigger Condition Function Timeout

The program entered a trigger's condition callback function for too long (>50 ms).

• Check for problematic loops.
• Try reducing the amount of work done inside the condition callback of a trigger.

<<ERROR-07>> Trigger Creating Failed

A el_create_trigger returned NULL.

• Check whether each of the created triggers is deleted.
• The system can handle 12 triggers at most. Do not cross that line.