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title | MB_Command Packet Layout. |
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Byte | Value | Description | 1 | 0xAD | I2C_WRITE USB FX2 API command ID | 2 | 0x3F | I2C Address MB_I2C_ADRESS=0x3F | 3 | 0x0C (12) | FX2_Parameters.I2C_BYTES=0x0C Number of bytes to write (max 32) | 4 | 0x00 | - | 5 | 0x00 | - | 6 | 0x00 | - | 7 | Command2MB | MB_Commands to send to the MicroBlaze | From 8 to 64 | - | Not used |
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Reply packet doesn't usually contain any usable information (only for Command2MB = MB_Commands = FX22MB_REG0_PING command the reply is "pong" 0x706F6E67 value).