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  • Jakub Vaněk's avatar
    de4b5ec7
    Increase drive strength of QSPI SD0~SD3 lines · de4b5ec7
    Jakub Vaněk authored 
    In the production run of OpenCube, it was discovered that some of the
flash chips (3-4 bricks from 25) fail to run at the default 66 MHz.
We have some indication that increasing the slew rate and drive
strength on SD0~SD3 pins of RP2040 might improve the reliability.
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    de4b5ec7
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    Increase drive strength of QSPI SD0~SD3 lines
    Jakub Vaněk authored 
    In the production run of OpenCube, it was discovered that some of the
flash chips (3-4 bricks from 25) fail to run at the default 66 MHz.
We have some indication that increasing the slew rate and drive
strength on SD0~SD3 pins of RP2040 might improve the reliability.
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