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PSoC Creator & Designer Software

ShSh_291626
New Contributor
‎May 03, 2013 04:38 AM

bootloader in rs485

I can use bootloader in uart, but i can't use bootloader in rs485

   

Seems to be because the relationship RS485 half-duplex

   

How do I fix this problem?

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3 Replies
HeLi_263931
Honored Contributor II
‎May 03, 2013 05:30 AM

Re: bootloader in rs485

Bootloading should also work with half-duplex communication. Its just that there is no example for that (AFAIK). So you would need to write your own bootloader component.

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ETRO_SSN583
Esteemed Contributor
‎May 03, 2013 06:06 AM

Re: bootloader in rs485

The physical layer of RS485 vs 422 impacts the transceiver

   

signaling, hence firmware. See en.wikipedia.org/wiki/RS-485

   

So you would have to modify UART APIs put a firmware wrapper

   

around it.

   

 

   

Regards, Dana.

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Anonymous
Not applicable
‎Dec 13, 2013 06:45 AM

Re: bootloader in rs485

 The current UART bootloader is for full duplex mode. There are a couple of modifications needed for the half duplex mode. 

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