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[[Image:tideclock_boardassy_01.jpg]] | [[Image:tideclock_boardassy_01.jpg]] | ||
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== Description == | == Description == | ||
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The prototypes (4 are in various stages of construction) have cost about $500 each for materials. Labour not included... | The prototypes (4 are in various stages of construction) have cost about $500 each for materials. Labour not included... | ||
− | == Hardware files == | + | == Hardware design files == |
Warning!!! Use this design at your own risk. | Warning!!! Use this design at your own risk. | ||
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== Power == | == Power == | ||
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== Busybox == | == Busybox == | ||
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== Building the Linux Kernel == | == Building the Linux Kernel == | ||
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* turn off Network Device Support->"PPP support" | * turn off Network Device Support->"PPP support" | ||
* turn on "I2C Core Debugging messages" | * turn on "I2C Core Debugging messages" | ||
− | * turn on | + | * turn on Real Time Clock->"Intersil ISL1208" (MUST if you want to use the external RTC) |
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* turn on RAMDISK support, so we can put kernel+rfs into flash and run the whole thing out of RAM. During booting the kernel+flash image is uncompressed into RAM and the rfs image mounted as / | * turn on RAMDISK support, so we can put kernel+rfs into flash and run the whole thing out of RAM. During booting the kernel+flash image is uncompressed into RAM and the rfs image mounted as / | ||
** in “Main menu”->“Device Drivers”->“Block devices” make sure “RAM disk support” is selected. | ** in “Main menu”->“Device Drivers”->“Block devices” make sure “RAM disk support” is selected. | ||
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== Root Filesystem (RFS) == | == Root Filesystem (RFS) == | ||
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− | + | == GPIO / Hardware Pin I/O == | |
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== Links == | == Links == |