s800_version_0x0006
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This shows you the differences between two versions of the page.
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s800_version_0x0006 [2013/12/12 11:26] pereira created |
s800_version_0x0006 [2013/12/12 11:28] pereira |
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| Sub packet of [[# | Sub packet of [[# | ||
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| + | </ | ||
| where t is the threshold. The waveform data is written using two consecutive words per sample, to be upacked from the following format (binary representation): | where t is the threshold. The waveform data is written using two consecutive words per sample, to be upacked from the following format (binary representation): | ||
| + | < | ||
| word 1: hsss ssss sscc cccc | word 1: hsss ssss sscc cccc | ||
| + | </ | ||
| + | < | ||
| word 2: 0000 nndd dddd dddd | word 2: 0000 nndd dddd dddd | ||
| + | </ | ||
| where h is the header bit, which should always be 1 for valid CRDC data; | where h is the header bit, which should always be 1 for valid CRDC data; | ||
| Line 154: | Line 160: | ||
| d are the 10 bits of data. | d are the 10 bits of data. | ||
| - | ===S800_FP_CRDC_ANODE_PACKET=== | + | ==== S800_FP_CRDC_ANODE_PACKET |
| Sub packet of [[# | Sub packet of [[# | ||
| + | < | ||
| | | ||
| + | </ | ||
| - | ==S800_FP_HODO_PACKET== | + | |
| + | ===== S800_FP_HODO_PACKET | ||
| Up to 32 Hodoscope energies read from Phillips 7164 ADCs, read in sparse mode, hit patterns read from a LeCroy 4448 Coincidence register, and a time value read from an Ortec 566 TAC via a Phillips 7164 ADC. The type of data to extract is determined from the first word of the packet, the id word. The first 16 energies are associated with id = 0, the second 16 with id = 1 and the hit patterns and time with id = 2. Format: | Up to 32 Hodoscope energies read from Phillips 7164 ADCs, read in sparse mode, hit patterns read from a LeCroy 4448 Coincidence register, and a time value read from an Ortec 566 TAC via a Phillips 7164 ADC. The type of data to extract is determined from the first word of the packet, the id word. The first 16 energies are associated with id = 0, the second 16 with id = 1 and the hit patterns and time with id = 2. Format: | ||
| + | < | ||
| (id = 0,1) 0x000i 0xceee ... | (id = 0,1) 0x000i 0xceee ... | ||
| + | </ | ||
| + | < | ||
| (id = 2) 0x000i 0xaaaa 0xbbbb 0xtttt | (id = 2) 0x000i 0xaaaa 0xbbbb 0xtttt | ||
| + | </ | ||
| where i is the id, a is the coincidence register A for the first 16 channels, b the register for the second 16 channels and t the TAC time. | where i is the id, a is the coincidence register A for the first 16 channels, b the register for the second 16 channels and t the TAC time. | ||
| - | ==S800_II_TRACK_PACKET== | + | ===== S800_II_TRACK_PACKET |
| Data from the intermediate image tracking PPAC read from a Jtec XLM72V universal logic module in the form of waveform samples. The S800_II_TRACK_PACKET contains no data and is solely a wrapper for the S800_II_TRACK_RAW_PACKET sub packet. | Data from the intermediate image tracking PPAC read from a Jtec XLM72V universal logic module in the form of waveform samples. The S800_II_TRACK_PACKET contains no data and is solely a wrapper for the S800_II_TRACK_RAW_PACKET sub packet. | ||
| - | ===S800_II_TRACK_RAW_PACKET=== | + | |
| + | ==== S800_II_TRACK_RAW_PACKET | ||
| Sub packet of [[# | Sub packet of [[# | ||
| + | < | ||
| | | ||
| + | </ | ||
| where t is the threshold. The waveform data is written using two consecutive words per sample, to be upacked from the following format (binary representation): | where t is the threshold. The waveform data is written using two consecutive words per sample, to be upacked from the following format (binary representation): | ||
| + | < | ||
| word 1: hsss ssss sscc cccc | word 1: hsss ssss sscc cccc | ||
| + | </ | ||
| + | < | ||
| word 2: 0000 nndd dddd dddd | word 2: 0000 nndd dddd dddd | ||
| + | </ | ||
| where h is the header bit, which should always be 1 for valid PPAC data; | where h is the header bit, which should always be 1 for valid PPAC data; | ||
| Line 196: | Line 216: | ||
| d are the 10 bits of data. | d are the 10 bits of data. | ||
| - | ==S800_OB_PIN_PACKET== | + | |
| + | ===== S800_OB_PIN_PACKET | ||
| Energy from the object box PIN detector, read out from a Phillips 7164 ADC. Format: | Energy from the object box PIN detector, read out from a Phillips 7164 ADC. Format: | ||
| + | < | ||
| | | ||
| + | </ | ||
| + | |||
| + | |||
| - | ==S800_VME_ADC_PACKET== | + | ===== S800_VME_ADC_PACKET |
| Mesytec 32 channel ADC installed in the main VME crate. Conversion is up to 13 bits. | Mesytec 32 channel ADC installed in the main VME crate. Conversion is up to 13 bits. | ||
| + | < | ||
| | | ||
| + | </ | ||
| where i is the id, and four id groups are in the data stream. Information from channels 0-7 is in id 0, 8-15 in id 1, 16-23 in id 2 and 24-32 in id 3. Not all channels may be present. By checking the length word before each packet tag, and unpacking the data word, the non-zero channels can be extracted. The data word format: | where i is the id, and four id groups are in the data stream. Information from channels 0-7 is in id 0, 8-15 in id 1, 16-23 in id 2 and 24-32 in id 3. Not all channels may be present. By checking the length word before each packet tag, and unpacking the data word, the non-zero channels can be extracted. The data word format: | ||
| + | < | ||
| ccce eeee eeee eeee | ccce eeee eeee eeee | ||
| + | </ | ||
| where c is the channel within this id (referred to as read_channel). The true adc channel number can be obtained by calculating (id * 8)+read_channel. e is the energy (11-13 bits dependent upon adc setting). | where c is the channel within this id (referred to as read_channel). The true adc channel number can be obtained by calculating (id * 8)+read_channel. e is the energy (11-13 bits dependent upon adc setting). | ||
| - | ==S800_GALOTTE_PACKET== | + | ===== S800_GALOTTE_PACKET |
| Galotte time, up, down, left and right times from the Galotte MCP detector installed in the Object Box. Format: | Galotte time, up, down, left and right times from the Galotte MCP detector installed in the Object Box. Format: | ||
| + | < | ||
| | | ||
| + | </ | ||
| where c is the channel number (starting from zero and incrementing in the order given above) and t the time data. | where c is the channel number (starting from zero and incrementing in the order given above) and t the time data. | ||
s800_version_0x0006.txt · Last modified: 2013/12/12 11:28 by pereira
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