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Zahkriin's avatar
Zahkriin
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4 years ago

Max1000 Remote System Upgrade via SPI

Hello, I have a Max1000 development board and would like to perform a remote system upgrade with it. I have programmed an SPI interface to send the required data. (Here not necessarily SPI must b...
sadann22's avatar
sadann22
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2 years ago

From the "MAX 10 user flash memory user guide":

Program Memory in Parallel Mode:

UFM Programming max time = 305uSec

UFM Reset max time = 250 uSec

Tota max time for 4 bytes = 555uSec

for the UART the maximum allowable rate will be = 1/(555uSec/40) =72Kbps

therefore it is advisable to use the rate you have chosen: 57,600 bps in order to avoid losing data.

jozephka99's avatar
jozephka99
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2 years ago

Oh, I see now. This explains why am I not successful when I tried 115200 baud rate. Thanks for clearing that out.