4.104.114.84.95
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1 | @c |
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2 | @c COPYRIGHT (c) 1988-1999. |
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3 | @c On-Line Applications Research Corporation (OAR). |
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4 | @c All rights reserved. |
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5 | @c |
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6 | @c $Id$ |
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7 | @c |
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8 | |
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9 | @chapter BSP Questions |
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10 | |
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11 | The items in this category provide answers to questions |
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12 | commonly asked about BSPs. |
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13 | |
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14 | @section What is a BSP? |
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15 | |
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16 | BSP is an acronym for Board Support Package. |
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17 | |
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18 | A BSP is a collection of device drivers, startup code, linker scripts, |
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19 | and compiler support files (specs files) that tailor RTEMS for a |
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20 | particular target hardware environment. |
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21 | |
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22 | @section What has to be in a BSP? |
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23 | |
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24 | The basic set of items is the linker script, bsp_specs, and startup code. |
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25 | If you want standard IO, then you need a console driver. This is needed |
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26 | to run any of the RTEMS tests. If you want to measure passage of time, |
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27 | you need a clock tick driver. This driver is needed for all RTEMS tests |
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28 | EXCEPT hello world and the timing tests. The timer driver is a benchmark |
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29 | timer and is needed for the tmtests (timing tests). Sometimes you will |
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30 | see a shmsupp directory which is for shared memory multiprocessing |
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31 | systems. The network driver and real-time clock drivers are optional |
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32 | and not reqired by any RTEMS tests. |
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