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bootloader in rs485 | Cypress Semiconductor

bootloader in rs485

Summary: 3 Replies, Latest post by SmartPSoC on 13 Dec 2013 06:45 AM PST
Verified Answers: 0
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user_110312627's picture
40 posts

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?

user_78878863's picture
2551 posts

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.

user_14586677's picture
7646 posts

The physical layer of RS485 vs 422 impacts the transceiver

signaling, hence firmware. See

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

around it.


Regards, Dana.

SmartPSoC's picture
Cypress Employee
68 posts

 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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