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Found 5 results

  1. I am trying to verify 8 bit RW registers and in some of the registers 4 bits are RESERVED lets say [3:0] . My bit bash sequence tries to write in these constant bit and flags me a mismatch error in the DUT and Mirrored Value. How do i stop my bit bash sequence from checking these RESERVED bits of a register. Thanks for your help
  2. Hi All, I am facing an issue: One of the register field is configured as : field_a.configure(this, 12, 17, "RO", 0, 12'h0, 1, 0, 1); field_a.set_compare(UVM_NO_CHECK); While doing a reset test, first I reset model then start test. But test fails with : UVM_ERROR -- value read from DUT (0x0000000080001e00) does not match mirrored value (0x00000000XxxXfe00) Basically the fields declared as RO and UVM_NO_CHECK goes X ? Any idea what I am missing or doing wrong ? Thanks.
  3. I have recently modeled registers as simple unions to represent bitfields, for example: typedef union { struct { uint32_t ADDRESS:5; uint32_t RESERVED:26; uint32_t ENABLE:1; } b; uint32_t w; } register_type; which facilitates the access to either the complete word or a bitfield. The interesting part comes when I try to check if the register value has changed, is there a more elegant way of doing this than polling in if or while statements for each register's value? I need to do this for a lot of them so I was wondering if modeling this using sc_bv provides a built-in eve
  4. Hi , To whom may correspond I think there is some kind of error in the UVM 1.1d register model. I have been experimenting with the UVM register model and i have seen the following code in uvm_reg_map.svh task uvm_reg_map::do_bus_write (uvm_reg_item rw, uvm_sequencer_base sequencer, uvm_reg_adapter adapter); uvm_reg_addr_t addrs[$]; uvm_reg_map system_map = get_root_map(); int unsigned bus_width = get_n_bytes(); uvm_reg_byte_en_t byte_en = -1; uvm_reg_map_info map_info;
  5. Version 5.0

    319 downloads

    This download contains a sample UVM environment that shows the use of IDesignSpec Free to generate a UVM Register Model. The input can be SystemRDL, IP-XACT, Word, Excel, XML etc. You can download the Free IDesignSpec Register Generator from here. You can use the included example as a ready reference to generate your own register model. You can use any or all of the IDesignSpec flavors: Word, Excel or Batch.
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