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- 10th March 2017, 09:33 #1
- Join Date
- Nov 2016
- 0 / 0
SPI EEPROM and GPS Receiver
I have a question, I am intending to configure my GPS the LEA-M8T from my PC. However, after the first configuration, I want the device to be completely standalone.
The controller for the board which I will design will be the MAX10. I am intending to store the configuration in EEPROM.
I am considering 2 possibilities:
1. Is it possible that I connect the MAX10 to EEPROM using SPI or I2C and then the configuration will be transmitted through MAX10 to my GPS again?
2. Or is it easier to have a SPI based EEPROM and use multiple slave in which the LEA-M8T and the EEPROM work as the slave and my MAX10 works as the master?
- 10th March 2017, 09:33
10th March 2017, 15:52 #2
- Join Date
- Sep 2013
- 1375 / 1375
Re: SPI EEPROM and GPS Receiver
It depends on your requirements.
My personal preference is to not share the SPI (it's only pins/wires at most) and have each controlled separately one SPI for the LEA-M8T and one for the EEPROM (i.e. the MAX10 has two masters and a bridge between the two).
If you add a UART or another SPI you can add that to the bridge/arbiter and be able to in-circuit reprogram the EEPROM and LEA-M8T configuration after it's built.