Re: [fpc-pascal] Re: (OT) Re: How to use UART of ARM platforms (e.g. Raspberry Pi ) through free Pascal?

2013-07-05 Thread Michael Schnell
On 07/04/2013 05:24 PM, Mark Morgan Lloyd wrote: In any event, my experience is that USB-serial converters are very poor Same here ! Standard USB stuff is not really suitable for embedded use. Due to electrical disturbances the data on the USB line can be corrupted and the link between

[fpc-pascal] Re: (OT) Re: How to use UART of ARM platforms (e.g. Raspberry Pi ) through free Pascal?

2013-07-04 Thread Lukasz Sokol
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

Re: [fpc-pascal] Re: (OT) Re: How to use UART of ARM platforms (e.g. Raspberry Pi ) through free Pascal?

2013-07-04 Thread Mark Morgan Lloyd
Lukasz Sokol wrote: 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

[fpc-pascal] Re: (OT) Re: How to use UART of ARM platforms (e.g. Raspberry Pi ) through free Pascal?

2013-07-04 Thread Lukasz Sokol
On 04/07/2013 16:24, Mark Morgan Lloyd wrote: Lukasz Sokol wrote: 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

Re: [fpc-pascal] Re: (OT) Re: How to use UART of ARM platforms (e.g. Raspberry Pi ) through free Pascal?

2013-07-04 Thread Luca Olivetti
Al 04/07/13 17:24, En/na Mark Morgan Lloyd ha escrit: In any event, my experience is that USB-serial converters are very poor for anything that involves accurate timing, and I suspect that controlling a 485 transceiver in conjunction with one would be problematic. Not if the converter

Re: [fpc-pascal] Re: (OT) Re: How to use UART of ARM platforms (e.g. Raspberry Pi ) through free Pascal?

2013-07-04 Thread Jonas Maebe
Hi, Can this thread please be moved to the fpc-other list? Thanks, Jonas FPC mailing lists admin ___ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal