diff --git a/applications/lofar2/doc/prestudy/station2_sdp_transient_buffer.txt b/applications/lofar2/doc/prestudy/station2_sdp_transient_buffer.txt
index 169cd995df680db0b5c27f7b1290db9a39e61893..d309c5cc4f62dfa830cc4640838c2d42e633ae86 100644
--- a/applications/lofar2/doc/prestudy/station2_sdp_transient_buffer.txt
+++ b/applications/lofar2/doc/prestudy/station2_sdp_transient_buffer.txt
@@ -1,7 +1,10 @@
Detailed design: Transient Buffer function (LIFT)
References:
-[1] https://plm.astron.nl/polarion/#/project/LOFAR2System/workitem?id=LOFAR2-12060 Transient buffer data
+[1] LIFT requirements: https://plm.astron.nl/polarion/#/project/LOFAR2System/wiki/Overview%20pages/LIFT%20Reference
+[2] https://support.astron.nl/confluence/display/L2M/2022-10-24+LIFT+meeting+notes
+[3] L1 LOFAR2 Decision: Transport of buffer data from Station to CEP, https://support.astron.nl/confluence/pages/viewpage.action?pageId=94766339
+[4] LOFAR1 TBB: https://support.astron.nl/confluence/display/L2M/Temporary+storage+of+documents+and+papers
1) DDR4 memory per receiver input
@@ -17,7 +20,12 @@ Assume 4 % storage overhead for packet header information
==> Per recveiver input T_tbuf = 1.33 GByte = 10.6 Gbit, so at full 10GbE rate it takes about 1 s to read all samples from 1 receiver input
==> 192 * 1.33 = 256 GByte / LB for T_tbuf = 3.2 s
-In [1] time series data en pulse data, wat is pulse data ?
+In LOFAR12060 [1] time series data en pulse data, wat is pulse data :
+ De Transient Buffer Time-Series Data Product zijn de ruwe samples, zoals we daar net ook over spraken
+ De Transient Buffer Pulse Data Product is dat wat er uit de Transient Detect moet komen
+ Voor beide geldt dan natuurlijk dat CEP er een data product van moet maken
+
+
Hoe streng is de 3.33 s, mag 3.2 s ook ?
Gebruik een 16 GByte module per FPGA, zodat uitbreiding naar 6.66 s mopgelijkl is door beide slots the gebruiken
Uitlezen per receiver input, zodat uitlezen van een deel vd receiver inputs mogelijk is (bijv 12 vd 192 in [1])
@@ -25,3 +33,24 @@ Defineer TB functie per receiver input:
. zodat de TB functie makkelijk uitbreidbaar is naar meer inputs en naar meer DDR4 modules.
. data capture en uitlezen van een receiver input onafhankelijk kan van de andere receiver inputs
+
+2) Meeting EK-BH 24 okt 2022 [2]
+Design decision 16GByte DDR4 na L2SDP-854, 850
+. uitbreidbaar door andere slot ook te vullen
+. 1 slot met 16GB kost minder FPGA resources dan 2 slots met 8GB
+
+- Uitgaan van 14 bit ingepakt
+- < 14 bit --> select reg voor welke 8 bit als veld in header
+- ICD SC-SDP CP, MP
+ . unfreeze, freeze, read out range from buffer
+- ICD SDP-CEP
+ . packet header and payload data format 3.1.2 in TBB1 doc
+ . applied coarse delay (compenseert voor cable delay)
+ . receiver configuration (LB, HB, frequency band, attenuation)
+ . read out flow control
+
+- One dual polarion
+- Ring
+- Buffer lengte versus nof antennes
+- Self trigger
+
diff --git a/libraries/base/common/python/try_round_weight.py b/libraries/base/common/python/try_round_weight.py
index b8d82b2a6fcdd21615f9f986659745a33814a067..e2a6986247d7e14a2a23ec22b1c187f66f17ec45 100644
--- a/libraries/base/common/python/try_round_weight.py
+++ b/libraries/base/common/python/try_round_weight.py
@@ -65,7 +65,7 @@ noise /= np.std(noise)
# Noise level range, 1 unit = 1 LSbit
sigma_lo = 0.1
-sigma_hi = 5
+sigma_hi = 25
sigmas = np.arange(sigma_lo, sigma_hi, 0.1)
N_sigmas = len(sigmas)
diff --git a/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd b/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd
index 0b1cf79bcdf78a9c2d1a00407bad000069b48014..1aeeb57d843fad84551b8e868d140a2b48a327aa 100644
--- a/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd
+++ b/libraries/io/nw_10GbE/src/vhdl/nw_arp_request.vhd
@@ -75,8 +75,12 @@ ARCHITECTURE rtl of nw_arp_request IS
CONSTANT c_dp_field_blk_snk_data_w : NATURAL := field_slv_len(c_hdr_field_arr);
CONSTANT c_dp_field_blk_src_data_w : NATURAL := c_data_w;
- SIGNAL pps_cnt : NATURAL := 0;
- SIGNAL trigger : BOOLEAN := FALSE;
+ SIGNAL valid_sha : STD_LOGIC := '0';
+ SIGNAL valid_spa : STD_LOGIC := '0';
+ SIGNAL valid_tpa : STD_LOGIC := '0';
+ SIGNAL valid_arp : STD_LOGIC := '0';
+ SIGNAL pps_cnt : NATURAL := 0;
+ SIGNAL trigger : BOOLEAN := FALSE;
SIGNAL dp_field_blk_snk_in : t_dp_sosi := c_dp_sosi_rst;
SIGNAL nxt_dp_field_blk_snk_in : t_dp_sosi := c_dp_sosi_rst;
@@ -96,33 +100,46 @@ BEGIN
nxt_dp_field_blk_snk_in.data(field_hi(c_hdr_field_arr, "arp_spa") DOWNTO field_lo(c_hdr_field_arr, "arp_spa")) <= arp_spa;
nxt_dp_field_blk_snk_in.data(field_hi(c_hdr_field_arr, "arp_tpa") DOWNTO field_lo(c_hdr_field_arr, "arp_tpa")) <= arp_tpa;
END PROCESS;
-
+
-- pps counter process setting sop, eop and valid
p_dp_pps : PROCESS (dp_clk, dp_rst)
BEGIN
IF dp_rst = '1' THEN
+ valid_sha <= '0';
+ valid_spa <= '0';
+ valid_tpa <= '0';
+ valid_arp <= '0';
trigger <= FALSE;
pps_cnt <= 0;
dp_field_blk_snk_in <= c_dp_sosi_rst;
ELSIF RISING_EDGE(dp_clk) THEN
+ -- Use signal to indicate if ARP can be enabled.
+ valid_sha <= vector_or(arp_sha);
+ valid_spa <= vector_or(arp_spa);
+ valid_tpa <= vector_or(arp_tpa);
+ valid_arp <= valid_sha AND valid_spa AND valid_tpa;
+ IF valid_arp = '1' THEN
+ dp_field_blk_snk_in <= nxt_dp_field_blk_snk_in;
+ IF trigger AND dp_field_blk_snk_out.ready = '1' AND dp_field_blk_snk_out.xon = '1' THEN
+ trigger <= FALSE;
+ dp_field_blk_snk_in.sop <= '1';
+ dp_field_blk_snk_in.eop <= '1';
+ dp_field_blk_snk_in.valid <= '1';
+ END IF;
- dp_field_blk_snk_in <= nxt_dp_field_blk_snk_in;
- IF trigger AND dp_field_blk_snk_out.ready = '1' AND dp_field_blk_snk_out.xon = '1' THEN
- trigger <= FALSE;
- dp_field_blk_snk_in.sop <= '1';
- dp_field_blk_snk_in.eop <= '1';
- dp_field_blk_snk_in.valid <= '1';
- END IF;
-
- IF dp_pps = '1' THEN
- IF pps_cnt < g_period_s-1 THEN
- pps_cnt <= pps_cnt + 1;
- ELSE
- pps_cnt <= 0;
- trigger <= TRUE;
+ IF dp_pps = '1' THEN
+ IF pps_cnt < g_period_s-1 THEN
+ pps_cnt <= pps_cnt + 1;
+ ELSE
+ pps_cnt <= 0;
+ trigger <= TRUE;
+ END IF;
END IF;
+ ELSE
+ trigger <= FALSE;
+ pps_cnt <= 0;
+ dp_field_blk_snk_in <= c_dp_sosi_rst;
END IF;
-
END IF;
END PROCESS;