Thursday, May 5, 2011

HOBBYWING Xerun latest firmware details

Since MaxPower is once again Malaysia's Official dealer, let us support you better.
I had tried the NEW software, it was great on few finer areas as highlighted in RED.

To update the ESC is not as straight forward this time, as my customer, I will support you with it for free. Read on!

Special Instructions For 110211_Stock Firmware Ver: HW-09-V2-110211Stock-20110310

Additional Instruction of 110211 _STOCK Firmware NOTE: The word “Degree” in the following statement doesn’t refer to the strict physical concept of “Angle”, it may be understood as the meaning of “Level”.

Compared with the previous versions such as 100518_STOCK, the 3rd generation STOCK firmware of “110211_STOCK” has the following improvements:

1. Stronger and quicker acceleration.

2. Boost Timing (internal normal timing) and Turbo Timing (also known as additional timing) has been designed to allow the end user much more finer adjustability, with the precision of 1 degree per step.

The100518_STOCK has 29 degrees of total timing, while 110211_STOCK has 64 degrees of total timing.

3. Turbo Timing and Boost Timing (internal normal timing) are designed to be combined as one timing feature with one another (Total effective timing is up to 64°).

4. Turbo Timing increase rate (slope rate) is adjustable.

5. Many more options for “Boost Start RPM” and “Boost Timing Acceleration”.

6. Brake Force has increased from 4 options to 8 options.


1. Once the 110211_STOCK firmware has been loaded into the ESC, you can only use the LCD Program Box or the USB-Link PC software to set the programmable parameters, neither the LED Program Card nor the SET button is available for programming the ESC with this new firmware.

2. You must update the firmware of the LCD Program Box to Version “110119” to be compatible with the 110211_STOCK firmware of ESC.

Note: When you attempt to upgrade the LCD program box firmware to Version 110119, the upgrade process may be interrupted (error), please try it again to re-flash the firmware). Usually the upgrade will be successfully completed on the 2nd attempt. We will solve this issue in later updated version.


Please check here:


#9.Boost Timing:It refers to the normal internal timing of the ESC which is effective throughout the entire throttle range and affects the motor speed through the entire track length (no matter around corners or straight parts of the track). Please note this refers to the maximum value of the ESC internal timing, the actual timing is always dynamically changed every moment according to the motor RPM.

Boost Timing (Degree)

0° to 64° with the trim step of 1°

FAQ: Is the total internal physical timing of 100518_STOCK identical with 110211_STOCK?

Answer: Yes. They are same. But 110211_STOCK has more levels, that means the step length of the timing of 110211_STOCK is smaller, so the user can adjust the timing more smoothly. Please check the following form for the comparison.

Boost Timing of 100518_STOCK Vs. 110211_STOCK

100518 STOCK

#9=1 #9=2 #9=3 #9=4 #9=5 #9=6 #9=7 #9=8

110211 STOCK

6 Deg 12 Deg 18 Deg 24 Deg 30 Deg 36 Deg 42 Deg 48 Deg

Special Instructions For 110211_Stock Firmware Ver: HW-09-V2-110211Stock-20110310


Turbo Timing of 100518_STOCK Vs. 110211_STOCK

100518 STOCK

#12=1 #12=2 #12=3 #12=4 #12=5 #12=6 #12=7 #12=8 #12=9

110211 STOCK

0 Deg 2 Deg 4 Deg 6 Deg 8 Deg 10 Deg 12 Deg 14 Deg 16 Deg

In the above form, “#9=2” means the 2nd option of the programmable item #9 (Boost Timing) in the 100518_STOCK firmware, the corresponding internal timing of this option in 100518_StOCK has the same physical effect as the “12 Degree (that is: Level 12)” in 110211_STCOK.

#10、Turbo Slope Rate (Degree/0.1s). It refers to the Turbo Timing increasing rate. The higher it is, the faster the Turbo Timing increases, and together with a quicker acceleration and higher motor temperature. Item 1 2 3 4 5 6

Turbo Slope Rate (Degree/0.1s)

3°/0.1s   6°/0.1s   12°/0.1s   18°/0.1s   24°/0.1s

Full Turbo Timing opened immediately

Example: Turbo Timing is set to 24° and Turbo Slope Rate is set to 3°/0.1s, it takes 0.8S to activate this 24°Turbo Timing.

#12、Turbo Timing:It is the additional timing that is added to the Boosting Timing and is ONLY effective when the throttle is at 100% end point of activation, so usually it is useful for long straight track.

Turbo Timing (Degree)

0° to 40° with the trim step of 1°

The maximum amount of effective timing (Boot Timing + Turbo Timing) of the 110211_STOCK firmware is designed to 64°. If the sum of “Boost Timing + Turbo Timing” is more than 64°, only 64° is effective and the exceeding value is useless.
#13、Boost Start RPM: ESC begins to increase the internal timing when motor speed reaches the Boost Start PRM. A smaller Boost Start RPM value causes a faster rate of boost because the ESC increases

Special Instructions For 110211_Stock Firmware Ver: HW-09-V2-110211Stock-20110310


the internal timing earlier. Item

Boost Start RPM (RPM)

1000 to 15000 RPM with the trim step of 1000 RPM

#14、Turbo Delay: This is the amount of time “full throttle” must be held BEFORE the turbo function engages. If the full throttle time is less than the setting value, the turbo function will NOT be activated. Item 1 2 3 4 5 6 7 8 9

Turbo Delay(s)

0s 0.1s 0.2s 0.3s 0.4s 0.5s 0.6s 0.7s 0.8s

#15、Boost Timing Acceleration:This refers to the RPM increment that triggers the Boost Timing increase of 1 Degree. The lower the value it is, the more torque the motor will produce but at the expense of the motor increasing in temperature. Item

Boost Timing Acceleration(RPM/Degree)

50 to 750 RPM/Deg, with the trim step of 50 RPM/Deg

This parameter is often misunderstood. The boost timing change is caused by the RPM increment, so we use this Boost Timing Acceleration parameter to control the increasing rate of Boost Timing.

So the change of RPM is the cause and the change of Boost Timing is the effect.

Generally, the larger the timing you set, the more powerful the motor will be, but hotter the motor will get. Motor may over-heat or even burn if too much of timing is activated when a motor is running at a low speed. In order to solve the problem, we use the method of dynamic timing. The motor will get a small amount of timing in low speed applications, when the motor speed reaches the Boost Start PRM, then the timing begins to increases together with the RPM.


1. The way to get a higher top speed:

A. Increase Timing

B. Reduce FDR

C. Increase acceleration

If the straight track is not long enough AND the acceleration is not strong enough, soon the car needs to speed down at the end of straight track while the motor hasn’t got a high speed. In such a case, we may mistakenly think that the top speed is too low, but the real reason is the weakness of acceleration, so we need to increase acceleration.

2. The way to increase the start acceleration:

A. Increase Timing

B. Reduce Boost Start RPM or reduce Boost Timing Acceleration

C. Increase FDR

D. Reduce Turbo Delay

E. Increase Turbo Slope Rate

F. Increase Start Punch (This is the programmable item #4 of the ESC, please check the user manual of the ESC)

3. The way to decrease motor temperature and get a longer running time:

A. Reduce Timing

B. Increase Boost Start RPM or increase Boost Timing Acceleration

C. Increase Turbo Delay

D. Reduce Turbo Slope Rate

The FDR depends on the track condition. Generally, gearing down to get a higher top speed in the large track with long straight, or gearing up to improve the punch out of the corner in the small track.

1 comment:

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