Hi all,
We are starting a design around a i.MX6SX micro, and the software guys do not want to use DDR memory (just a simple Flash memory will be enough for them, they say, though they plan to run a light linux on one core and MQX on the other)
As we are really constrained in both PCB area and power consumption, I would like to get rid of DDR interface, and not power up related banks on the micro, so I can save a power rail, and lower the consumption. As the Hardware development Guide for Solo X is still not released, I don't know what would be the proper configuration (floating,/grounding pins) or if it is possible at all to do that.
In fact, I should simplify the power tree as much as possible, and I am not being able to find much information on it (we won't use any of the external interfaces but 2 x I2Cs,1 x SPI,1/2 x UART and SDIO, so no need to power up many peripherals, if possible)
Any advice is welcome :smileyhappy:
Thanks!!
Solved! Go to Solution.
Hi Francisco
i.MX6SX is modified version of Solo, so as preliminary
answer one can look at Table 2-21. Recommended connections for
unused analog interfaces IMX6DQ6SDLHDG,
however it may be recomended to wait for Hardware Development Guide
for SoloX to be released. Note, this applicable only for analog
interfaces, digital power domains should be always powered.
One can run applications without DDR, running them from QSPI or
EIM directly (xip), or loading it to internal RAM (OCRAM).
Best regards
igor
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Hi Francisco
i.MX6SX is modified version of Solo, so as preliminary
answer one can look at Table 2-21. Recommended connections for
unused analog interfaces IMX6DQ6SDLHDG,
however it may be recomended to wait for Hardware Development Guide
for SoloX to be released. Note, this applicable only for analog
interfaces, digital power domains should be always powered.
One can run applications without DDR, running them from QSPI or
EIM directly (xip), or loading it to internal RAM (OCRAM).
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------