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4 FAQ’s for Actel’s Antifuse FPGA Programming

59. Generating a programming file in Designer, returns the following error message: "You are not

licensed to program this device. Please contact Actel Customer Support for further information".

Why? ........................................................................................................................................... 23

60. Can I program an RTSXSU (UMC) device with the *.afm file created for an RT54SXS (MEC)

device or vice versa? .................................................................................................................. 23

61. Can I program a -1 speed grade device with the *.afm file created for a standard speed grade

device? ........................................................................................................................................ 23

62. Can I use the same programming file with devices of different technologies? ........................... 24

63. Can I retarget to a compatible device with just an *.afm file? ..................................................... 24

64. Can I use ACT 2 *.afm files to program 1200XL devices? ......................................................... 24

65. Can I use 1020A files to program a 1020B device? .................................................................... 25

66. How do I check which version of Designer was used to create my *.afm file? ........................... 25

67. What is the silicon signature? ..................................................................................................... 25

68. What is PINCHECKSUM in the *.afm file? .................................................................................. 25

69. How do I verify that a device has been programmed? ................................................................ 26

70. How do I determine the status of the Actel security fuse? .......................................................... 26

71. What is the fuse checksum? ....................................................................................................... 26

72. Why do I see a different fuse checksum in the Axcelerator

*.afm file when it is regenerated

from 8.0 Sp2 or later? ................................................................................................................. 26

73. What is the difference between Array, Security, Probe, and Program fuse types? .................... 27

74. Will parts programmed with Silicon Sculptor have the same checksum as devices programmed

on the Activator? ......................................................................................................................... 27

75. What is the probability of getting a correct checksum but an incorrect program fuse? .............. 27

76. Concerning the programming file *.afm, is there a way of incrementing the silicon signature

without redoing place-and-route?................................................................................................ 28

77. Are all the fuses checked by Silicon Sculptor? ........................................................................... 28

78. What does EIT test mean? .......................................................................................................... 28

79. What is the reason of getting "Bad device id" during programming? .......................................... 28

80. What does “Function aborted” during programming mean? ....................................................... 28

81. What does the error message “Antifuse xxx, Pulse xxxx, Cannot program” mean? .................. 29

82. What does the error message “Antifuse xxxx, Integrity test xxx failed” mean? .......................... 29

Programming failure guideline ............................................................................................................... 29

Miscellaneous ............................................................................................................. 29

83. Is there a need for dynamic or static burn-in after programming? .............................................. 29

84. Can 172 CQFP sockets withstand military temperatures (−55°C to +125°C)? .......................... 29

85. Does Actel recommend programming a commercial part before programming an RH/RT part?30

86. Where can I find the lot number and date code on Actel FPGAs? ............................................. 30

87. Are the electrical characteristics of the device guaranteed after programming? Is it necessary to

perform functional tests on the programmed units? .................................................................... 30

88. Can I program the antifuse devices on board? ........................................................................... 30

89. Is it possible to program antifuse devices in automatic testing equipment? ............................... 30

90. Does Actel provide programming services? ............................................................................... 31

91. For CQFP packages, is there any way to program the Actel FPGA after the lead frame has

been trimmed and formed? ......................................................................................................... 31

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Adaptec AVA-1505A Guía de usuario Pagina 4

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