TRG

ALPHAT, the trigger control board for the ALPHA-g detector

References

• xxx

Control registers

Register addresses

Note: all registers are 32 bits unless otherwise noted.

Address	Quartus Name	Access	FwRev	Description
0x1F	compilation_time	RO		Firmware revision
0x20	conf_trig_width <= par_value;
0x21	conf_busy_width <= par_value;
0x22	conf_pulser_width <= par_value;
0x23	conf_pulser_period <= par_value;
0x24	sw_trigger_counter <= 10;
0x25	conf_trig_enable <= par_value;
0x26	conf_sas_trig_mask <= par_value;	obsolete
0x27	conf_sas_trig_mask_a <= par_value;	obsolete
0x28	conf_sas_trig_mask_b <= par_value;	obsolete
0x29	conf_nim_mask <= par_value;
0x2A	conf_esata_mask <= par_value;
0x2B	conf_latch <= 1;
0x2C	conf_coinc_a <= par_value;
0x2D	conf_coinc_b <= par_value;
0x2E	conf_coinc_c <= par_value;
0x2F	conf_coinc_d <= par_value;
0x100..0x11F	scaler_data[1023..0]
0x200..0x207	conf_adc16_masks
0x300..0x30F	conf_adc32_masks
0x400..0x41F	ag_sas_bits[1023..0]

remaining GRIF-C registers

            14'h001:  param_out <= {2'h3, par_id, chan, 16'h0,  threshold    };
            14'h002:  param_out <= {2'h3, par_id, chan,         pulser_ctrl  };
            14'h003:  param_out <= {2'h3, par_id, chan, 31'h0,  polarity     };
            14'h004:  param_out <= {2'h3, par_id, chan, 16'h0,  diff_const   };
            14'h005:  param_out <= {2'h3, par_id, chan, 16'h0,  integ_const  };
	    14'h006:  param_out <= {2'h3, par_id, chan, 22'h0,  decimation   };
            14'h007:  param_out <= {2'h3, par_id, chan, 16'h0,  num_pretrig  };
            14'h008:  param_out <= {2'h3, par_id, chan, 16'h0,  num_sample   };
            14'h009:  param_out <= {2'h3, par_id, chan, 16'h0,  pole_corn    };
            14'h00A:  param_out <= {2'h3, par_id, chan, 16'h0,  hitdet_integ };
            14'h00B:  param_out <= {2'h3, par_id, chan, 16'h0,  hitdet_diff  };
            14'h00C:  param_out <= {2'h3, par_id, chan, 16'h0,  integ_delay  };
            14'h00D:  param_out <= {2'h3, par_id, chan, 30'h0,  wavebuf_mode };
            14'h00E:  param_out <= {2'h3, par_id, chan,         trig_deadtime};
            14'h00F:  param_out <= {2'h3, par_id, chan, 31'h0,  enable_adc   };
            14'h010:  param_out <= {2'h3, par_id, chan, 28'h0,  detectortype };
            14'h011:  param_out <= {2'h3, par_id, chan,         sync_livetime};
            14'h012:  param_out <= {2'h3, par_id, chan,         sync_deadtime};

GRIF-C CSR register
              14'h3D: csr                  <= csr & ~par_value; // Selective clear
	      14'h3E: csr                  <= csr |  par_value; // Selective set
	      14'h3F: csr                  <= par_value;

map of scaler_data

map of scaler_data:

         if (i==0)
	   assign scaler_data_wire[i*32+31:i*32] = ts_625;
	 else if (i==1)
	   assign scaler_data_wire[i*32+31:i*32] = counter_trig_out;
	 else if (i==2)
	   assign scaler_data_wire[i*32+31:i*32] = counter_trig_in;
	 else if (i==3)
	   assign scaler_data_wire[i*32+31:i*32] = counter_pulser;
	 else if (i==4)
	   assign scaler_data_wire[i*32+31:i*32] = counter_adc16_grand_or;
	 else if (i==5)
	   assign scaler_data_wire[i*32+31:i*32] = counter_adc32_grand_or;
	 else if (i==6)
	   assign scaler_data_wire[i*32+31:i*32] = counter_adc_grand_or;
	 else if (i==7)
	   assign scaler_data_wire[i*32+31:i*32] = counter_esata_nim_grand_or;
	 else if (i==8)
	   assign scaler_data_wire[i*32+31:i*32] = counter_mult16_1ormore;
	 else if (i==9)
	   assign scaler_data_wire[i*32+31:i*32] = counter_mult16_2ormore;
	 else if (i==10)
	   assign scaler_data_wire[i*32+31:i*32] = counter_mult16_3ormore;
	 else if (i==11)
	   assign scaler_data_wire[i*32+31:i*32] = counter_mult16_4ormore;
	 else if (i==12)
	   assign scaler_data_wire[i*32+31:i*32] = counter_cc01;
	 else if (i==13)
	   assign scaler_data_wire[i*32+31:i*32] = counter_cc23;
	 else if (i==14)
	   assign scaler_data_wire[i*32+31:i*32] = counter_cc45;
	 else if (i==15)
	   assign scaler_data_wire[i*32+31:i*32] = counter_cc67;
	 else if (i==16)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[1][15:0], counter_adc16_or16[0][15:0] };
	 else if (i==17)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[3][15:0], counter_adc16_or16[2][15:0] };
	 else if (i==18)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[5][15:0], counter_adc16_or16[4][15:0] };
	 else if (i==19)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[7][15:0], counter_adc16_or16[6][15:0] };
	 else if (i==20)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[9][15:0], counter_adc16_or16[8][15:0] };
	 else if (i==21)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[11][15:0], counter_adc16_or16[10][15:0] };
	 else if (i==22)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[13][15:0], counter_adc16_or16[12][15:0] };
	 else if (i==23)
	   assign scaler_data_wire[i*32+31:i*32] = { counter_adc16_or16[15][15:0], counter_adc16_or16[14][15:0] };
	 else
	   assign scaler_data_wire[1023:i*32] = 0;

conf_trig_enable bits

Bit	Quartus Name	FwRev	Description
0	conf_enable_sw_trigger		trigger on software trigger (how generated???)
1	conf_enable_pulser		trigger on pulser
2	conf_enable_sas_or		obsolete
3	conf_run_pulser		let the pulser run (frequency has to be set beforehand)
4	conf_output_pulser		enable external output of pulser signal
5	conf_enable_esata_nim		trigger on ESATA and NIM grand-or (esata and nim masks should be set beforehand)
6	conf_enable_adc16		trigger on adc16 grand-or
7	conf_enable_adc32		trigger on adc32 grand-or
8	conf_enable_1ormore		trigger on grand multiplicity "1 or more"
9	conf_enable_2ormore		same, "2 or more"
10	conf_enable_3ormore		same, "3 or more"
11	conf_enable_4ormore		same, "4 or more"
12	conf_enable_adc16_coinc		trigger on special coincidence of adc16 links
13	conf_enable_udp	0x5a7a3fbd (06Feb18_15:52)	enable sending UDP packets
14	conf_enable_busy	0x5a7a3fbd (06Feb18_15:52)	enable activation of busy counter
15	-	-	not used
16	conf_enable_coinc_a
17	conf_enable_coinc_b
18	conf_enable_coinc_c
19	conf_enable_coinc_d

UDP data format

Offset	Name	Quartus name	FwRev	Description
0	packet counter	none	all	UDP packet counter, counting from 0, reset by reboot. Automatically added by UDP transmitter code in the GRIFC base firmware
1	0x8 packet header		all	28 bits of counter_trig_out
2	trigger timestamp	trig_ts	all	62.5MHz trigger timestamp
3	accepted triggers	counter_trig_out	all	counter of accepted triggers
4	input triggers	counter_trig_in	all	counter of trigger input
5	pulser triggers	counter_pulser	all	counter of pulser triggers
6	trigger bitmap	udp_trig_bits	0x5a48448d (30Dec17_17:59)	bitmap of trigger information, see below
7	nim bits	udp_nim_bits_masked	???	32 bits of ADC NIM inputs (2 bits per ADC)
8	esata bits	udp_esata_bits_masked	???	32 bits of ADC ESATA inputs (2 bits per ADC)
X
9	0x9 packet footer		all	28 bits of counter_trig_out

trigger bitmap

              udp_trig_bits[0] <= adc16_grand_or;
              udp_trig_bits[1] <= adc32_grand_or;
              udp_trig_bits[2] <= adc_grand_or;
              udp_trig_bits[3] <= esata_nim_grand_or;
              udp_trig_bits[4] <= adc16_coinc_top;
              udp_trig_bits[5] <= adc16_coinc_bot;
              udp_trig_bits[6] <= adc16_coinc;
              udp_trig_bits[7] <= 0;
              udp_trig_bits[23:8] <= adc16_coinc_dff[15:0];
              udp_trig_bits[31:24] <= mult16[7:0];

TODO

• add FwRev to the UDP data output

End

//KO