| /* |
| * SPDX-FileCopyrightText: 2020 Efabless Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| // This include is relative to $CARAVEL_PATH (see Makefile) |
| #include "verilog/dv/caravel/defs.h" |
| #include "verilog/dv/caravel/stub.c" |
| |
| /* |
| Wishbone Test: |
| - Configures MPRJ lower 8-IO pins as outputs |
| - Checks counter value through the wishbone port |
| */ |
| void clock(){ |
| // clock |
| reg_la2_data = 0x00000001; |
| reg_la2_data = 0x00000000; |
| // end clock |
| } |
| |
| void clean_lines(){ |
| reg_la0_data = 0x00000000; |
| reg_la1_data = 0x00000000; |
| } |
| |
| void add_value_to_triplet_register(uint32_t value, uint32_t selected_register){ |
| |
| reg_la0_data = (selected_register << 5| 6 & 0x1F); |
| reg_la1_data = value; |
| } |
| |
| void read_value_from_triplet_register(uint32_t selected_register){ |
| |
| reg_la0_data = (selected_register << 5| 5 & 0x1F); |
| |
| } |
| |
| void add_value_to_register(uint32_t value, uint32_t selected_register){ |
| |
| reg_la0_data = (selected_register << 5| 2 & 0x1F); |
| reg_la1_data = value; |
| } |
| |
| void read_value_from_register(uint32_t selected_register){ |
| |
| reg_la0_data = (selected_register << 5| 1 & 0x1F); |
| |
| } |
| |
| #define reg_wb_register (*(volatile uint32_t*)0x30000000) |
| |
| void main() |
| { |
| |
| /* |
| IO Control Registers |
| | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN | |
| | 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | |
| Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_USER_STD_OUTPUT |
| | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN | |
| | 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | |
| |
| |
| Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL |
| | DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN | |
| | 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | |
| */ |
| |
| /* Set up the housekeeping SPI to be connected internally so */ |
| /* that external pin changes don't affect it. */ |
| |
| reg_spimaster_config = 0xa002; // Enable, prescaler = 2, |
| // connect to housekeeping SPI |
| |
| // Connect the housekeeping SPI to the SPI master |
| // so that the CSB line is not left floating. This allows |
| // all of the GPIO pins to be used for user functions. |
| |
| reg_mprj_io_37 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_36 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_35 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_34 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_33 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_32 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_31 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_30 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_29 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_28 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_27 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_26 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_25 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_24 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_23 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_22 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_21 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_20 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_19 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_18 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_17 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_16 = GPIO_MODE_USER_STD_OUTPUT; |
| |
| reg_mprj_io_15 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_14 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_13 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_12 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_11 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_10 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_9 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_8 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_7 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_5 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_4 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_3 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_2 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_1 = GPIO_MODE_USER_STD_OUTPUT; |
| reg_mprj_io_0 = GPIO_MODE_USER_STD_OUTPUT; |
| |
| reg_mprj_io_6 = GPIO_MODE_MGMT_STD_OUTPUT; |
| |
| |
| reg_uart_clkdiv = 625; |
| reg_uart_enable = 1; |
| |
| /* Apply configuration */ |
| reg_mprj_xfer = 1; |
| while (reg_mprj_xfer == 1); |
| |
| // Configure LA probes |
| // outputs from the cpu are inputs for my project denoted for been 0 |
| // inputs to the cpu are outpus for my project denoted for been 1 |
| reg_la0_oenb = reg_la0_iena = 0x00000000; // [31:0] |
| reg_la1_oenb = reg_la1_iena = 0x00000000; // [63:32] |
| reg_la2_oenb = reg_la2_iena = 0xFFFFFFFC; // [95:64] |
| reg_la3_oenb = reg_la3_iena = 0xFFFFFFFF; // [127:96] |
| |
| |
| // Flag start of the test |
| reg_mprj_datal = 0xAB400000; |
| |
| // clock and reset |
| reg_la2_data = 0x00000003; |
| reg_la2_data = 0x00000000; |
| // end clock |
| |
| add_value_to_triplet_register(2, 28); |
| clock(); |
| clean_lines(); |
| clock(); |
| // deactivate internal clock |
| reg_la2_oenb = 0xFFFFFFFF; |
| // data 0x1 |
| // partity bits 1000011 |
| |
| //apply modification to the register |
| reg_wb_register = 0x00032053; |
| clock(); |
| reg_la2_oenb = 0xFFFFFFFC; |
| |
| read_value_from_triplet_register(28); |
| clock(); |
| |
| reg_mprj_datal = 0xAB410000; |
| print("\n"); |
| print("Monitor: Test 3 Passed\n\n"); // Makes simulation very long! |
| reg_mprj_datal = 0xAB510000; |
| } |