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  • mborgerson's Avatar
    01-10-2020, 05:04 PM
    The concern for writes of less than 512 bytes goes back to the original implementation of the LFS on an MSP430F148, which has only 2KB of RAM. There are only two allocated sector buffers in the LFS, one for the...
    13 replies | 218 view(s)
  • mborgerson's Avatar
    01-09-2020, 07:05 PM
    I've done some more tests with transferStop and I find that it does indeed reduce power drain significantly: on a T3.6 at 24MHz using a 32GC SanDisk Ultra SD micro card. After SDC.begin but before any calls to...
    13 replies | 218 view(s)
  • mborgerson's Avatar
    01-04-2020, 04:23 AM
    I'm working on a Teensy version of a Logger File System (LFS). It is a sequential file system with a simple directory structure and minimal file system overhead. It was originally written for data loggers using MSP430...
    13 replies | 218 view(s)
  • mborgerson's Avatar
    12-13-2019, 07:36 PM
    Just tested the 1.49 Beta#2 with a data logger program I'm working on. I tested the Beta to see how it would affect data file upload speeds, and the improvements were significant. Test setup: Teensy 4.0 at 600MHz...
    44 replies | 1974 view(s)
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About mborgerson

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About mborgerson
building embedded systems for oceanographers since 1978
Corvallis, OR
Retired embedded systems engineer


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SDIO Power drain 01-10-2020 05:04 PM
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