Programming MCUs Which are Connected to RS485 Bus

[rhnrgn]

Hello,

I want to know if there is anybody tried his. I have a system where 8 same MCU "pic16f1946" connected to a RS485 bus. I am using same transiever at the enterance of each MCU.

Can i upload my hex file via rs485 and bootloader to all of the MCU at the same time?

Best Regards.

[richcj10]

Hello,

I want to know if there is anybody tried his. I have a system where 8 same MCU "pic16f1946" connected to a RS485 bus. I am using same transiever at the enterance of each MCU.

Can i upload my hex file via rs485 and bootloader to all of the MCU at the same time?

Best Regards.

I think only one at a time. The way this works is it sends out a stream waits for a reply and then does the data exchange. So you would reset one unit, program it, and go down the line.