o2::tpc::cmv Namespace Reference

Classes
struct	Container
struct	Data
	CMV single data container. More...
struct	Header
	Header definition of the CMVs. More...

Detailed Description

The data is sent by the CRU as 256+16 bit words. The CMV data layout is as follows:

• 256-bit Header: [version:8][packetID:8][errorCode:8][magicWord:8][heartbeatOrbit:32][heartbeatBC:16][padding:176]
• 16-bit CMV value: [sign:1][I8F7:15] where bit 15 is the sign (1=positive, 0=negative) and the lower 15 bits are a fixed point I8F7 value (8 integer bits, 7 fractional bits) Float conversion: sign ? (value & 0x7FFF) / 128.0 : -(value & 0x7FFF) / 128.0