[fpc-pascal] Re: (OT) Re: How to use UART of ARM platforms (e.g. Raspberry Pi ) through free Pascal?
el.es.cr at gmail.com
Thu Jul 4 16:18:29 CEST 2013
On 04/07/2013 12:03, Michael Schnell wrote:
> On 07/04/2013 12:52 PM, Lukasz Sokol wrote:
>> For RS485 adaptation, use a MAX232 like chip (to convert +-12 to
>> ttl) and then a RS485 transceiver chip;
> If you want to create hardware anyway, better use a PIC24 (pr PIC32)
> chip with USB plus a RS485 tranceiver chip. So you get rid of the "
> ATEN usb-to-serial cable (UC-232A)" and you have both sides of USB
> under your control so that you can do the USB procedure you want.
+1 if OP wants to create his own hw and sw for that purpose
> Another way is using a pre-programmed PIC chip available by Microchip
> with USB to-Serial software plus a RS485 tranceiver chip.
+1 if OP wants to use standard hw...
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