Introduction-to-the-WINC1500-WiFi-Network-Controller …



BENCHMARKWINC1500 Wi-Fi Module Benchmark using iperf 2.0.5 42271A05/14BENCH-XXXXPrerequisitesHardware PrerequisitesAtmel Xplained Pro Evaluation KitAtmel WINC1500 extensionUSB Micro Cable (TypeA / MicroB)Software PrerequisitesAtmel Studio 6.2iperf projectIntroductionThis document provides bandwidth information for TCP and UDP protocol. It applies to the following products:SAM4S Xplained ProSAMG53 Xplained ProSAMD21 Xplained Pro219583058420Table of Contents TOC \o "1-4" \h \z \t "Heading 5,2,Heading 6,5,Heading 7,1,Appendix X.X,2,Appendix X.X.X,3" Prerequisites PAGEREF _Toc409439771 \h 1Introduction PAGEREF _Toc409439772 \h 1Icon Key Identifiers PAGEREF _Toc409439773 \h 31.Benchmark configuration PAGEREF _Toc409439774 \h 41.1Solution Overview PAGEREF _Toc409439775 \h 42.Firmware release 18 PAGEREF _Toc409439776 \h 52.1SAM4S Xplained Pro PAGEREF _Toc409439777 \h 52.2SAMG53 Xplained Pro PAGEREF _Toc409439778 \h 72.3SAMD21 Xplained Pro PAGEREF _Toc409439779 \h 93.Performance summary PAGEREF _Toc409439780 \h 114.Revision History PAGEREF _Toc409439781 \h 12Icon Key IdentifiersIcons are used to identify different assignment sections and reduce complexity. These icons are:Delivers contextual information about a specific topicHighlights useful tips and techniquesHighlights objectives to be completedHighlights the expected result of an assignment stepIndicates important informationHighlights actions to be executed out of the target when necessaryBenchmark configurationSolution OverviewThe purpose of this benchmark is to measure the bandwidth of the WINC1500 Wi-Fi module with several different Atmel MCU devices.The iperf version used is 2.0.5. Hence, it has been ported to Atmel MCU and operates as a server. To run this project you will need to have:Atmel Xplained Pro board (supported chip list below)Atmel WINC1500 extensionAtmel Studio 6.2.1153 or aboveIperf projectLinux laptop with iperf v2.0.5 installedThe iperf project has been ported to the following Atmel MCU:Atmel SAM4S Xplained Pro boardAtmel SAMD21 Xplained Pro boardAtmel SAMG53 Xplained Pro boardThe purpose of this document is to evaluate the bandwidth of the WINC1500 Wi-Fi module for TCP and UDP protocol throughout the available WINC1500 firmware release.Firmware release 18SAM4S Xplained ProCPU is running at 120Mhz and SPI is set at 60Mhz, compiled with -oS:TCP BandwidthUDP BandwidthRXthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r------------------------------------------------------------Server listening on TCP port 5001TCP window size: 85.3 KByte (default)------------------------------------------------------------------------------------------------------------------------Client connecting to 192.168.1.4, TCP port 5001TCP window size: 20.8 KByte (default)------------------------------------------------------------[? 5] local 192.168.1.5 port 59733 connected with 192.168.1.4 port 5001[ ID] Interval?????? Transfer???? Bandwidth[? 5]? 0.0- 5.0 sec? 4.00 MBytes? 6.71 Mbits/sec[? 5]? 5.0-10.0 sec? 4.00 MBytes? 6.71 Mbits/sec[? 5]? 0.0-10.2 sec? 8.12 MBytes? 6.68 Mbits/secthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m------------------------------------------------------------Server listening on TCP/UDP port 5001TCP window size: ??? KByte------------------------------------------------------------[? 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128[? 7]? 0.0-10.0 sec??? 11.78 Mbytes??? 9.42 Mbits/sec??? 31779/ 42554 (74.6%)TX[? 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port 1030[? 4]? 0.0- 5.0 sec? 2.18 MBytes? 3.66 Mbits/sec[? 4]? 5.0-10.0 sec? 1.24 MBytes? 2.08 Mbits/sec[? 4]? 0.0-10.2 sec? 3.45 MBytes? 2.84 Mbits/sec[? 3]? 0.0- 5.0 sec? 8.24 MBytes? 13.8 Mbits/sec?? 1.303 ms 43930/50578 (87%)[? 3]? 5.0-10.0 sec? 8.26 MBytes? 13.9 Mbits/sec?? 0.761 ms 44235/50895 (87%)[? 3] 10.0-15.0 sec? 8.00 MBytes? 13.4 Mbits/sec?? 0.435 ms 45464/51917 (88%)[? 3] 15.0-20.0 sec? 8.64 MBytes? 14.5 Mbits/sec?? 0.427 ms 42171/49140 (86%)[? 3] 20.0-25.0 sec? 7.04 MBytes? 11.8 Mbits/sec?? 0.715 ms 49998/55674 (90%)[? 3] 25.0-30.0 sec? 6.93 MBytes? 11.6 Mbits/sec?? 0.515 ms 50671/56262 (90%)[? 3] 30.0-35.0 sec? 7.19 MBytes? 12.1 Mbits/sec?? 0.925 ms 49055/54858 (89%)[? 3] 35.0-40.0 sec? 6.67 MBytes? 11.2 Mbits/sec?? 0.729 ms 51774/57152 (91%)[? 3] 40.0-45.0 sec? 7.23 MBytes? 12.1 Mbits/sec?? 0.682 ms 49282/55112 (89%)[? 3] 45.0-50.0 sec? 7.56 MBytes? 12.7 Mbits/sec?? 1.246 ms 47350/53448 (89%)CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with -oS:TCP BandwidthUDP BandwidthRXthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r------------------------------------------------------------Server listening on TCP port 5001TCP window size: 85.3 KByte (default)------------------------------------------------------------------------------------------------------------------------Client connecting to 192.168.1.4, TCP port 5001TCP window size: 20.8 KByte (default)------------------------------------------------------------[? 5] local 192.168.1.5 port 59762 connected with 192.168.1.4 port 5001[ ID] Interval?????? Transfer???? Bandwidth[? 5]? 0.0- 5.0 sec? 1.75 MBytes? 2.94 Mbits/sec[? 5]? 5.0-10.0 sec? 1.62 MBytes? 2.73 Mbits/sec[? 5]? 0.0-10.5 sec? 3.50 MBytes? 2.79 Mbits/secthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m------------------------------------------------------------Server listening on TCP/UDP port 5001TCP window size: ??? KByte------------------------------------------------------------[? 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128[? 7]? 0.0-10.0 sec??? 6.75 Mbytes??? 5.40 Mbits/sec??? 36496/ 42549 (85.774047%)TX[? 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port 1029[? 4]? 0.0- 5.0 sec? 1.75 MBytes? 2.94 Mbits/sec[? 4]? 5.0-10.0 sec? 1.89 MBytes? 3.17 Mbits/sec[? 4]? 0.0-10.4 sec? 3.67 MBytes? 2.95 Mbits/sec[? 3]? 0.0- 5.0 sec? 5.00 MBytes? 8.39 Mbits/sec?? 1.012 ms 1937/ 5970 (32%)[? 3]? 5.0-10.0 sec? 5.11 MBytes? 8.57 Mbits/sec?? 1.377 ms 1151/ 5271 (22%)[? 3] 10.0-15.0 sec? 4.89 MBytes? 8.20 Mbits/sec?? 1.077 ms 2858/ 6799 (42%)[? 3] 15.0-20.0 sec? 5.19 MBytes? 8.70 Mbits/sec?? 1.099 ms? 594/ 4778 (12%)[? 3] 20.0-25.0 sec? 4.84 MBytes? 8.12 Mbits/sec?? 1.115 ms 3099/ 7004 (44%)[? 3] 25.0-30.0 sec? 5.16 MBytes? 8.65 Mbits/sec?? 1.132 ms? 785/ 4946 (16%)[? 3] 30.0-35.0 sec? 5.20 MBytes? 8.73 Mbits/sec?? 1.222 ms? 509/ 4706 (11%)[? 3] 35.0-40.0 sec? 5.10 MBytes? 8.56 Mbits/sec?? 0.989 ms 1179/ 5296 (22%)[? 3] 40.0-45.0 sec? 5.03 MBytes? 8.44 Mbits/sec?? 1.080 ms 1785/ 5844 (31%)[? 3] 45.0-50.0 sec? 4.86 MBytes? 8.15 Mbits/sec?? 1.144 ms 2950/ 6870 (43%)This test gives an idea of bandwidth performance we could expect from the SAMD21 Xplained Pro if the host driver was to use DMA..SAMG53 Xplained ProCPU is running at 48Mhz and SPI is set at 48Mhz, compiled with -oS:TCP BandwidthUDP BandwidthRXthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r------------------------------------------------------------Server listening on TCP port 5001TCP window size: 85.3 KByte (default)------------------------------------------------------------------------------------------------------------------------Client connecting to 192.168.1.4, TCP port 5001TCP window size: 20.8 KByte (default)------------------------------------------------------------[? 5] local 192.168.1.5 port 59733 connected with 192.168.1.4 port 5001[ ID] Interval?????? Transfer???? Bandwidth[? 5]? 0.0- 5.0 sec? 3.38 MBytes? 5.66 Mbits/sec[? 5]? 5.0-10.0 sec? 3.38 MBytes? 5.66 Mbits/sec[? 5]? 0.0-10.4 sec? 6.88 MBytes? 5.54 Mbits/secthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m------------------------------------------------------------Server listening on TCP/UDP port 5001TCP window size: ??? KByte------------------------------------------------------------[? 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128[ 7] 0.0-10.0 sec 8.49 Mbytes 6.79 Mbits/sec 34833/ 42523 (81.915672%)TX[? 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port 1030[? 4]? 0.0- 5.0 sec? 2.14 MBytes? 3.58 Mbits/sec[? 4]? 5.0-10.0 sec? 1.51 MBytes? 2.54 Mbits/sec[? 4]? 0.0-10.0 sec? 3.68 MBytes? 2.93 Mbits/sec[? 3]? 0.0- 5.0 sec? 8.19 MBytes? 13.7 Mbits/sec?? 0.783 ms 2884/ 9486 (30%)[? 3]? 5.0-10.0 sec? 8.14 MBytes? 13.6 Mbits/sec?? 1.050 ms 3119/ 9681 (32%)[? 3] 10.0-15.0 sec? 8.14 MBytes? 13.7 Mbits/sec?? 0.633 ms 3264/ 9829 (33%)[? 3] 15.0-20.0 sec? 8.28 MBytes? 13.9 Mbits/sec?? 1.176 ms 2265/ 8945 (25%)[? 3] 20.0-25.0 sec? 7.99 MBytes? 13.4 Mbits/sec?? 1.072 ms 3956/10397 (38%)[? 3] 25.0-30.0 sec? 7.58 MBytes? 12.7 Mbits/sec?? 0.655 ms 5769/11883 (49%)[? 3] 30.0-35.0 sec? 6.99 MBytes? 11.7 Mbits/sec?? 1.829 ms 8201/13843 (59%)[? 3] 35.0-40.0 sec? 7.76 MBytes? 13.0 Mbits/sec?? 0.940 ms 5042/11303 (45%)[? 3] 40.0-45.0 sec? 7.44 MBytes? 12.5 Mbits/sec?? 0.843 ms 6357/12356 (51%)[? 3] 45.0-50.0 sec? 7.89 MBytes? 13.2 Mbits/sec?? 0.622 ms 4398/10762 (41%)CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with -oS:TCP BandwidthUDP BandwidthRXthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r------------------------------------------------------------Server listening on TCP port 5001TCP window size: 85.3 KByte (default)------------------------------------------------------------------------------------------------------------------------Client connecting to 192.168.1.4, TCP port 5001TCP window size: 20.8 KByte (default)------------------------------------------------------------[? 5] local 192.168.1.5 port 59762 connected with 192.168.1.4 port 5001[ ID] Interval?????? Transfer???? Bandwidth[? 5]? 0.0- 5.0 sec? 1.75 MBytes? 2.94 Mbits/sec[? 5]? 5.0-10.0 sec? 1.75 MBytes? 2.94 Mbits/sec[? 5]? 0.0-10.7 sec? 3.62 MBytes? 2.83 Mbits/secthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m------------------------------------------------------------Server listening on TCP/UDP port 5001TCP window size: ??? KByte------------------------------------------------------------[? 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128[ 7] 0.0-10.0 sec 6.42 Mbytes 5.14 Mbits/sec 36814/ 42543 (86.533622%)TX[? 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port 1029[? 4]? 0.0- 5.0 sec? 2.12 MBytes? 3.55 Mbits/sec[? 4]? 5.0-10.0 sec?? 631 KBytes? 1.03 Mbits/sec[? 4]? 0.0-10.1 sec? 2.75 MBytes? 2.29 Mbits/sec[? 3]? 0.0- 5.0 sec? 4.91 MBytes? 8.24 Mbits/sec?? 1.021 ms 2780/ 6742 (41%)[? 3]? 5.0-10.0 sec? 4.85 MBytes? 8.13 Mbits/sec?? 0.998 ms 3180/ 7089 (45%)[? 3] 10.0-15.0 sec? 4.71 MBytes? 7.91 Mbits/sec?? 0.895 ms 4079/ 7880 (52%)[? 3] 15.0-20.0 sec? 5.09 MBytes? 8.54 Mbits/sec?? 1.434 ms 1500/ 5607 (27%)[? 3] 20.0-25.0 sec? 5.15 MBytes? 8.64 Mbits/sec?? 1.102 ms 1244/ 5400 (23%)[? 3] 25.0-30.0 sec? 5.04 MBytes? 8.46 Mbits/sec?? 1.540 ms 1866/ 5931 (31%)[? 3] 30.0-35.0 sec? 5.22 MBytes? 8.76 Mbits/sec?? 0.973 ms? 803/ 5016 (16%)[? 3] 35.0-40.0 sec? 5.07 MBytes? 8.51 Mbits/sec?? 1.280 ms 1713/ 5803 (30%)[? 3] 40.0-45.0 sec? 4.97 MBytes? 8.34 Mbits/sec?? 0.767 ms 2459/ 6467 (38%)[? 3] 45.0-50.0 sec? 4.81 MBytes? 8.07 Mbits/sec?? 1.023 ms 3457/ 7336 (47%)This test gives an idea of bandwidth performance we could expect from the SAMD21 Xplained Pro if the host driver was to use DMA.SAMD21 Xplained ProThe SAMD21 port is not optimized as the SPI implementation is based on polling. Hence, performances are more impacted by optimization level. For this test only, several optimization levels will be tested. CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with –oS:TCP BandwidthUDP BandwidthRXthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r------------------------------------------------------------Server listening on TCP port 5001TCP window size: 85.3 KByte (default)------------------------------------------------------------------------------------------------------------------------Client connecting to 192.168.1.4, TCP port 5001TCP window size: 20.8 KByte (default)------------------------------------------------------------[? 5] local 192.168.1.5 port 59762 connected with 192.168.1.4 port 5001[ ID] Interval?????? Transfer???? Bandwidth[? 5]? 0.0- 5.0 sec?? 768 KBytes? 1.26 Mbits/sec[? 5]? 5.0-10.0 sec?? 768 KBytes? 1.26 Mbits/sec[? 5]? 0.0-11.8 sec? 1.62 MBytes? 1.16 Mbits/secthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m------------------------------------------------------------Server listening on TCP/UDP port 5001TCP window size: ??? KByte------------------------------------------------------------[? 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128[ 7] 0.0-10.0 sec 2.68 Mbytes 2.14 Mbits/sec 39985/ 42274 (94.585327%)TX[? 4]? 0.0- 5.0 sec?? 741 KBytes? 1.21 Mbits/sec[? 4]? 5.0-10.0 sec?? 992 KBytes? 1.62 Mbits/sec[? 4]? 0.0-10.0 sec? 1.69 MBytes? 1.42 Mbits/sec[? 3]? 0.0- 5.0 sec? 1.23 MBytes? 2.06 Mbits/sec?? 4.932 ms?? 10/ 1002 (1%)[? 3]? 5.0-10.0 sec? 1.23 MBytes? 2.07 Mbits/sec?? 4.780 ms??? 6/ 1002 (0.6%)[? 3] 10.0-15.0 sec? 1.24 MBytes? 2.08 Mbits/sec?? 4.870 ms??? 4/ 1002 (0.4%)[? 3] 15.0-20.0 sec? 1.23 MBytes? 2.07 Mbits/sec?? 4.922 ms?? 10/ 1005 (1%)[? 3] 20.0-25.0 sec? 1.24 MBytes? 2.08 Mbits/sec?? 4.451 ms??? 4/ 1002 (0.4%)[? 3] 25.0-30.0 sec? 1.23 MBytes? 2.06 Mbits/sec?? 4.832 ms?? 10/ 1002 (1%)[? 3] 30.0-35.0 sec? 1.24 MBytes? 2.08 Mbits/sec?? 4.910 ms??? 5/ 1003 (0.5%)[? 3] 35.0-40.0 sec? 1.24 MBytes? 2.07 Mbits/sec?? 4.910 ms??? 5/ 1002 (0.5%)[? 3] 40.0-45.0 sec? 1.24 MBytes? 2.08 Mbits/sec?? 4.963 ms??? 3/ 1001 (0.3%)[? 3] 45.0-50.0 sec? 1.24 MBytes? 2.08 Mbits/sec?? 4.902 ms??? 4/ 1004 (0.4%)[? 3] 50.0-55.0 sec? 1.24 MBytes? 2.07 Mbits/sec?? 4.933 ms??? 5/ 1002 (0.5%)CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with –o1:TCP BandwidthUDP BandwidthRXthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r------------------------------------------------------------Server listening on TCP port 5001TCP window size: 85.3 KByte (default)------------------------------------------------------------------------------------------------------------------------Client connecting to 192.168.1.4, TCP port 5001TCP window size: 20.8 KByte (default)------------------------------------------------------------[? 5] local 192.168.1.5 port 59762 connected with 192.168.1.4 port 5001[ ID] Interval?????? Transfer???? Bandwidth[? 5]? 0.0- 5.0 sec?? 768 KBytes? 1.26 Mbits/sec[? 5]? 5.0-10.0 sec?? 768 KBytes? 1.26 Mbits/sec[? 5]? 0.0-11.4 sec? 1.62 MBytes? 1.20 Mbits/secthibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m------------------------------------------------------------Server listening on TCP/UDP port 5001TCP window size: ??? KByte------------------------------------------------------------[? 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128[ 7] 0.0-10.0 sec 2.66 Mbytes 2.13 Mbits/sec 40290/ 42538 (94.715316%)TX[? 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port 1029[? 4]? 0.0- 5.0 sec?? 763 KBytes? 1.25 Mbits/sec[? 4]? 5.0-10.0 sec?? 909 KBytes? 1.49 Mbits/sec[? 4]? 0.0-10.0 sec? 1.64 MBytes? 1.37 Mbits/sec[? 3]? 0.0- 5.0 sec? 1.19 MBytes? 2.00 Mbits/sec?? 4.794 ms?? 15/? 977 (1.5%)[? 3]? 5.0-10.0 sec? 1.21 MBytes? 2.02 Mbits/sec?? 5.037 ms??? 5/? 977 (0.51%)[? 3] 10.0-15.0 sec? 1.20 MBytes? 2.02 Mbits/sec?? 5.248 ms??? 6/? 977 (0.61%)[? 3] 15.0-20.0 sec? 1.21 MBytes? 2.03 Mbits/sec?? 5.021 ms??? 3/? 978 (0.31%)[? 3] 20.0-25.0 sec? 1.21 MBytes? 2.03 Mbits/sec?? 5.021 ms??? 3/? 977 (0.31%)[? 3] 25.0-30.0 sec? 1.21 MBytes? 2.03 Mbits/sec?? 5.043 ms??? 2/? 977 (0.2%)[? 3] 30.0-35.0 sec? 1.20 MBytes? 2.02 Mbits/sec?? 5.458 ms??? 7/? 976 (0.72%)[? 3] 35.0-40.0 sec? 1.21 MBytes? 2.03 Mbits/sec?? 4.959 ms??? 2/? 978 (0.2%)[? 3] 40.0-45.0 sec? 1.21 MBytes? 2.02 Mbits/sec?? 5.002 ms??? 4/? 977 (0.41%)[? 3] 45.0-50.0 sec? 1.21 MBytes? 2.03 Mbits/sec?? 5.055 ms??? 4/? 978 (0.41%)To ensure good TCP TX performances, the send function call must NOT be made from the SOCKET_MSG_SENT callback. It is advised to put the function call directly in the program main loop (where function m2m_wifi_handle_events is periodically called).Performance summaryThe following table gives an overview of the best possible performances according to the previous test reports:ChipTCPUDPDownstreamUpstream DownstreamUpstreamWINC1500 Firmware Version 18SAM4S6.68 Mbits/sec2.84 Mbits/sec9.42 Mbits/sec12.70 Mbits/secSAMG535.54 Mbits/sec2.93 Mbits/sec6.79 Mbits/sec13.2 Mbits/secSAMD211.16 Mbits/sec1.42 Mbits/sec2.14 Mbits/sec2.07 Mbits/secThe reported values are average and may slightly change when trying to reproduce this test depending on test environment.Revision HistoryDoc. Rev.DateCommentsXXXXXA01/2015Initial document release*Do not worry!If you have deleted the line – Section Break (Next Page)Open another training manual template and select the following:Starting at the instruction field before the last page all the way to the very end of the document.CopyGo back to the end of the document where the last page should startSelect all lines for last page to the very endPaste Special > Formatted textClick delete once (only because it adds one additional line at bottom and another page after pasting the disclaimer page)Atmel Corporation1600 Technology DriveSan Jose, CA 95110USATel:(+1)(408) 441-0311Fax:(+1)(408) 487-2600 Atmel Asia LimitedUnit 01-5 & 16, 19FBEA Tower, Millennium City 5418 Kwun Tong RoadKwun Tong, KowloonHONG KONGTel:(+852) 2245-6100Fax:(+852) 2722-1369Atmel Munich GmbHBusiness CampusParkring 4D-85748 Garching b. MunichGERMANYTel:(+49) 89-31970-0Fax:(+49) 89-3194621Atmel Japan G.K.16F Shin-Osaki Kangyo Bldg.1-6-4 Osaki, Shinagawa-kuTokyo 141-0032JAPANTel: (+81)(3) 6417-0300Fax: (+81)(3) 6417-0370? 2012 Atmel Corporation. All rights reserved. / Rev.: 42271A05/14Atmel?, Atmel logo and combinations thereof, Enabling Unlimited Possibilities?, and others are registered trademarks or trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be trademarks of others.Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. 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