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[/] [openmsp430/] [trunk/] [core/] [sim/] [rtl_sim/] [src/] [op_modes.v] - Rev 172
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/*===========================================================================*/ /* Copyright (C) 2001 Authors */ /* */ /* This source file may be used and distributed without restriction provided */ /* that this copyright statement is not removed from the file and that any */ /* derivative work contains the original copyright notice and the associated */ /* disclaimer. */ /* */ /* This source file is free software; you can redistribute it and/or modify */ /* it under the terms of the GNU Lesser General Public License as published */ /* by the Free Software Foundation; either version 2.1 of the License, or */ /* (at your option) any later version. */ /* */ /* This source is distributed in the hope that it will be useful, but WITHOUT*/ /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ /* License for more details. */ /* */ /* You should have received a copy of the GNU Lesser General Public License */ /* along with this source; if not, write to the Free Software Foundation, */ /* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /* */ /*===========================================================================*/ /* CPU OPERATING MODES */ /*---------------------------------------------------------------------------*/ /* Test the CPU Operating modes: */ /* - CPUOFF (<=> R2[4]): turn off CPU. */ /* - OSCOFF (<=> R2[5]): turn off LFXT_CLK. */ /* - SCG1 (<=> R2[7]): turn off SMCLK. */ /* */ /* Author(s): */ /* - Olivier Girard, olgirard@gmail.com */ /* */ /*---------------------------------------------------------------------------*/ /* $Rev: 134 $ */ /* $LastChangedBy: olivier.girard $ */ /* $LastChangedDate: 2012-03-22 21:31:06 +0100 (Thu, 22 Mar 2012) $ */ /*===========================================================================*/ integer smclk_cnt; always @(negedge mclk) if (smclk_en) smclk_cnt <= smclk_cnt+1; integer aclk_cnt; always @(negedge mclk) if (aclk_en) aclk_cnt <= aclk_cnt+1; integer inst_cnt; always @(inst_number) inst_cnt = inst_cnt+1; initial begin $display(" ==============================================="); $display("| START SIMULATION |"); $display(" ==============================================="); repeat(5) @(posedge mclk); stimulus_done = 0; `ifdef ASIC $display(" ==============================================="); $display("| SIMULATION SKIPPED |"); $display("| (this test is not supported in ASIC mode) |"); $display(" ==============================================="); $finish; `else // SCG1 (<=> R2[7]): turn off SMCLK //-------------------------------------------------------- @(r15==16'h1001); smclk_cnt = 0; repeat (84) @(posedge mclk); if (smclk_cnt !== 16'h000a) tb_error("====== SCG1 TEST 1: SMCLK IS NOT RUNNING ====="); @(r15==16'h1002); smclk_cnt = 0; repeat (84) @(posedge mclk); if (smclk_cnt !== 16'h0000) tb_error("====== SCG1 TEST 2: SMCLK IS NOT STOPPED ====="); @(r15==16'h1003); p1_din[0] = 1'b1; repeat (2) @(posedge mclk); p1_din[0] = 1'b0; smclk_cnt = 0; repeat (84) @(posedge mclk); if (smclk_cnt !== 16'h000a) tb_error("====== SCG1 TEST 3: SMCLK IS NOT RUNNING DURING IRQ ====="); @(r15==16'h1004); smclk_cnt = 0; repeat (84) @(posedge mclk); if (smclk_cnt !== 16'h0000) tb_error("====== SCG1 TEST 4: SMCLK IS NOT STOPPED ====="); @(r15==16'h1005); smclk_cnt = 0; repeat (80) @(posedge mclk); if (smclk_cnt !== 16'h000a) tb_error("====== SCG1 TEST 5: SMCLK IS NOT RUNNING ====="); // OSCOFF (<=> R2[5]): turn off LFXT1CLK //-------------------------------------------------------- @(r15==16'h2001); aclk_cnt = 0; smclk_cnt = 0; repeat (104) @(posedge mclk); if (aclk_cnt !== 16'h0004) tb_error("====== OSCOFF TEST 1: ACLK IS NOT RUNNING ====="); if (smclk_cnt !== 16'h0068) tb_error("====== OSCOFF TEST 1: SMCLK IS NOT RUNNING ON MCLK ====="); @(r15==16'h2002); aclk_cnt = 0; smclk_cnt = 0; repeat (104) @(posedge mclk); if (aclk_cnt !== 16'h0000) tb_error("====== OSCOFF TEST 2: ACLK IS NOT STOPPED ====="); if (smclk_cnt !== 16'h0068) tb_error("====== OSCOFF TEST 2: SMCLK IS NOT RUNNING ON MCLK ====="); @(r15==16'h2003); p1_din[0] = 1'b1; repeat (2) @(posedge mclk); p1_din[0] = 1'b0; aclk_cnt = 0; smclk_cnt = 0; repeat (104) @(posedge mclk); if (aclk_cnt !== 16'h0003) tb_error("====== OSCOFF TEST 3: ACLK IS NOT RUNNING DURING IRQ ====="); if (smclk_cnt !== 16'h0068) tb_error("====== OSCOFF TEST 3: SMCLK IS NOT RUNNING ON MCLK ====="); @(r15==16'h2004); aclk_cnt = 0; smclk_cnt = 0; repeat (104) @(posedge mclk); if (aclk_cnt !== 16'h0000) tb_error("====== OSCOFF TEST 4: ACLK IS NOT STOPPED ====="); if (smclk_cnt !== 16'h0068) tb_error("====== OSCOFF TEST 4: SMCLK IS NOT RUNNING ON MCLK ====="); @(r15==16'h2005); aclk_cnt = 0; smclk_cnt = 0; repeat (104) @(posedge mclk); if (aclk_cnt !== 16'h0004) tb_error("====== OSCOFF TEST 5: ACLK IS NOT RUNNING ====="); if (smclk_cnt !== 16'h0004) tb_error("====== OSCOFF TEST 5: SMCLK IS NOT RUNNING ON LFXT1 ====="); @(r15==16'h2006); aclk_cnt = 0; smclk_cnt = 0; repeat (104) @(posedge mclk); if (aclk_cnt !== 16'h0003) tb_error("====== OSCOFF TEST 6: ACLK IS NOT RUNNING ====="); if (smclk_cnt !== 16'h0068) tb_error("====== OSCOFF TEST 6: SMCLK IS NOT RUNNING ON MCLK ====="); // CPUOFF (<=> R2[4]): turn off CPU //-------------------------------------------------------- @(r15==16'h3001); @(negedge mclk); inst_cnt = 0; repeat (80) @(negedge mclk); if (inst_cnt <= 16'h0030) tb_error("====== CPUOFF TEST 1: CPU IS NOT RUNNING ====="); @(r15==16'h3002); repeat (3) @(negedge mclk); inst_cnt = 0; repeat (80) @(negedge mclk); if (inst_cnt !== 16'h0000) tb_error("====== CPUOFF TEST 2: CPU IS NOT STOPPED ====="); @(posedge mclk); p1_din[0] = 1'b1; repeat (2) @(posedge mclk); p1_din[0] = 1'b0; @(negedge mclk); inst_cnt = 0; repeat (80) @(negedge mclk); if (inst_cnt <= 16'h0025) tb_error("====== CPUOFF TEST 3: CPU IS NOT RUNNING DURING IRQ (PORT 1) ====="); @(r1==(`PER_SIZE+16'h0050)); repeat (3) @(negedge mclk); inst_cnt = 0; repeat (80) @(negedge mclk); if (inst_cnt !== 16'h0000) tb_error("====== CPUOFF TEST 4: CPU IS NOT STOPPED AFTER IRQ ====="); @(posedge mclk); p2_din[0] = 1'b1; repeat (2) @(posedge mclk); p2_din[0] = 1'b0; @(negedge mclk); inst_cnt = 0; repeat (80) @(negedge mclk); if (inst_cnt <= 16'h0025) tb_error("====== CPUOFF TEST 5: CPU IS NOT RUNNING DURING IRQ (PORT 2) ====="); @(r15==16'h3003); @(negedge mclk); inst_cnt = 0; repeat (80) @(negedge mclk); if (inst_cnt <= 16'h0030) tb_error("====== CPUOFF TEST 6: CPU IS NOT RUNNING ====="); `endif stimulus_done = 1; end
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