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LDmicro Forum - Atmega32 have PWM ? |
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Atmega32 have PWM ? (by Ilie)
Hi Jonatan, I saw in the datasheet for Atmega32 has 4-pin PWM but in the Progam LDmicro this statement can not be used and you can not assign a port.
Port B bit 3 Port D bit 7 Port D bit 5 Port D bit 4 Thank you very much.
(no subject) (by Jonathan Westhues)
Not every feature of every micro is supported. It does seem like it would be possible to generate code for that peripheral, but LDmicro currently doesn't.
(no subject) (by Ilie)
But I can use more instructions to replace the PWM instruction, if you have time please give me an example.
(no subject) (by Jonathan Westhues)
Perhaps you mean software PWM, like
http://cq.cx/ladder-forum.pl?action=viewthread&parent=3 or the attachment. This works on any digital output, but only for output frequencies that are slow compared to your cycle time.
(no subject) (by Ilie)
You have a plan for improvement in this regard in the future? Thenk you for all.
(no subject) (by Ilie)
Please can you tell me if I can produce 16,000 Hz softwere. Thank you.
(no subject) (by Ilie)
Please help if you're nice to tell me, is likely to generate a frequency between 1-16000 Hz without PWM.
I want to replace the sound instruction that other software have. And I want do that with Ldmicro. Thanks
(no subject) (by Jonathan Westhues)
There is no good way. Software PWM cannot generate an output faster than 1/(2*Tcycle), so this is much too fast.
Some other tools have instructions to generate such frequencies in software, by bit-banging quickly. But that would stop the PLC from cycling and is therefore not possible in LDmicro.
(no subject) (by Ilie)
THank You for amability.
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