Hi, I’m a long-time bl2000 user and I am looking for a SBC that gives easy PWM output for a new project. It needs to also not eat up processor time.
Looking at the BL2500, can the hardware filter be removed to access the raw PWM train powering its “analog” output? How would you go about doing that?
Best Regards,
Garrett
[QUOTE=garrettrowe;86]Hi, I’m a long-time bl2000 user and I am looking for a SBC that gives easy PWM output for a new project. It needs to also not eat up processor time.
Looking at the BL2500, can the hardware filter be removed to access the raw PWM train powering its “analog” output? How would you go about doing that?
Best Regards,
Garrett[/quote]
Hi Garrett,
The BL2500 is not going to allow what you are asking for without some cuts and jumps to the board. Unfortunately, the Rabbit’s four PWM channels are hardwired to the two DAC channels and two fast input channels on this SBC. One of these would need to be cut and jumpered to get direct access to a PWM output. Have you considered our new RabbitFLEX SBC, it gives you the ability to design the I/O your project needs and have a customized layout built for you within 5 business days. This board has the ability to have all four PWM channels brought out to connector pins as either raw signals, or as driving signals for sinking or sourcing driver transistors. You can also optionally have 1 or 2 of the PWM channels wired to DAC channels to give a filtered DC output. The only thing this board cannot give you that the BL2500 can is both RabbitNet and RS485 at the same time. On the RabbitFLEX board you would have to choose one or the other (or neither if you aren’t using them, which lowers the cost of the board). Let me know if you need help in laying out a board that would work for you. Hope this helps.