software:programming:i2c:shell
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| Both sides previous revisionPrevious revision | |||
| software:programming:i2c:shell [2017/03/07 15:10] – [Using user space via i2c] admin | software:programming:i2c:shell [2017/03/07 22:18] (current) – [References] admin | ||
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| Line 36: | Line 36: | ||
| # For example: for bit 0, write: | # For example: for bit 0, write: | ||
| i2cset -y 0 0x20 0x14 0x01 | i2cset -y 0 0x20 0x14 0x01 | ||
| + | </ | ||
| + | |||
| + | ==== Hardware detection ==== | ||
| + | Color table: | ||
| + | ^ Bit ^ mcp23008 ^ mcp23017 ^ | ||
| + | | 1 | L_GRN | ||
| + | | 2 | L_BLU | ||
| + | | 4 | L_RED | ||
| + | | 8 | R_BLU | ||
| + | | 16 | R_GRN | ||
| + | | 32 | R_RED | ||
| + | | 64 | WHITE | ||
| + | | 128 | HEATR | ||
| + | |||
| + | <code bash> | ||
| + | # Detection for mcp23017: | ||
| + | i2cset -y 0 0x20 0x00 0x00 | ||
| + | i2cset -y 0 0x20 0x14 0x01 | ||
| + | i2cget -y 0 0x20 0x14 | ||
| + | |||
| + | # should give 0x01 on mcp23017 and 0x00 on mcp23008 | ||
| </ | </ | ||
| ===== References ===== | ===== References ===== | ||
| * [[http:// | * [[http:// | ||
software/programming/i2c/shell.1488895807.txt.gz · Last modified: 2017/03/07 15:10 by admin
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