Aoyama-san,
Typically good layout practice is to separate high current lines and signal lines as much as possible to reduce coupling.
Has the customer reviewed the layout guidelines in the datasheet (section 10)? They can use our DRV8818EVM as an…
Hi Rick,
Thanks for the detail info . We need a lab solution for a stepper motor experiment . Do you have any lab experiment written on DRV8818EVM including the program ?
Do you have any lab trainer for stepper motor that can be programmed by students…
Hi Rick,
I’d also like to top up another question:
What is the rationale behind TI setting the acceleration limit on the Software GUI of DRV8818EVM?
Thanks.
Other Parts Discussed in Thread: DRV8818EVM , DRV8818 Hi
I operate motor by DRV8818EVM in the following condition. - 3000pps - 24V - 1.5A - 1/2 step
In this condition, in only Mixed decay case, motor can not be operated. I would like to get advice…
Other Parts Discussed in Thread: DRV8818 , DRV8818EVM , DRV8880 , DRV8880EVM Hello,
sorry to trouble you to check my design.
Tthe design Drv8818 stepper motor driver designed by customer self is more larger than DRV8818EVM in vibration noise . so…
Hi Pablo,
Pablo Armet said: Is it on the increasing or decreasing current steps of the current waveform?
The problem only occurs on the decreasing current steps. This is because the chip only uses mixed decay on the decreasing part of the table (see…
Hi Takahashi-san,
The DRV8825PWPR and DRV8818PWPR use the PCB to cool the device. Assuming there is enough copper on the board, the connection to the back of the IC should be sufficient. If your customer is interested, the DRV8825EVM and DRV8818EVM…
Hi Michael,
Thanks for the information. From it, I have the following comments. The DRV8818EVM can be used as an example for many of these comments. You can search for DRV8818EVM, then scroll down to the software section. A zipped file contains the…
Hi Mike
You can find here. http://www.ti.com/tool/drv8818evm
On the bottom of the page you can see the software package link http://www.ti.com/lit/zip/slvc415
Actually it is not only software, it is including all the PCB source files and firmware…
Hi Poul,
This problem does not appear to be reported before. Doing a search of the forum does not show anything either.
Are you using your own board or the DRV8818EVM? If your own board, can you capture the first and next few step commands and the…
