I think I've resolved the issue, but limited testing has been performed.
I believe the issue was here:
void MotorStateMachine()
{
// update the SteppingRateTMR if required
// reduce the number of calculations
if (UpdateSteppingRateTMR == true…
Part Number: DRV8885EVM Hallo,
I have some problems while the installing "GUIComposerApp-v1.0.setup-win_2.0.3.exe" behind a proxy.
With the runtime "gcruntime-6.1.0-windows-installer.exe" I get some errors.
gcruntime_6.1.0.20180815074426.log
…
Part Number: DRV8886ATEVM Other Parts Discussed in Thread: DRV8886EVM , DRV8885EVM , DRV8886AT , DRV8886 Hi Team,
My customer asked below, regarding to current setting of DRV8886ATEVM.
When customer configured IFULL SCALE as 1A, but actual measured…
Hi Riccardo,
Not necessarily. If you are using the same variable, you can create a couple of files that will force the variables to be placed in the same location.
An example of how to do this can be found in the DRV8885EVM firmware.
Look for the…
Hi Asano-san,
Currently, that is not possible. However, there is an EVM available for evaluation purpose. The link is www.ti.com/.../drv8885evm.
I hope this helps, thank you.
Hi Aoyama-san,
1) about VRREF specification
It is mentioned RREF=18k ohm to 132k ohm in the TEST CONDITIONS.
Is that range the limit of operation?
Or, that range is just TEST CONDITION, so it is possible to use
a resistor out of range value…
Part Number: DRV8885 Is a capacitor required for the RREF pin? ①EVM has a capacitor (2) No capacitor on the data sheet ③PFU now has capacitors Do you recommend the motor driver side when mounting? Which of the attached excel is better to implement? PFU_question…
Hi Rick,
Please see comments below:
I also already measured a motor setup and concluded that the motor indeed moves at start-up. I do not understand how to hold the motor with setting the torque as minimum torque is 50% and that means that the motor…
Hi Rick,
Are you using any special features of the ST device? If so, what features are you using?
The biggest setting is the current chopping level. That requires setting a reference voltage at the VREF pin of the DRV8880 or setting a resistor on…
Hi Tal,
the current motor used is BM-42M by Ezi-Step.
could you please advise for the exact chip set ( ucontroller and driver ) to fit this application ?
Please look at the DRV8880 or DRV8885. The DRV8880 includes the AutoTune feature while the…
