caravel/verilog/dv/cocotb/tests/debug/debug.c

51 lines
1.4 KiB
C

/*
* 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
*/
#include <defs.h>
#include <stub.c>
// --------------------------------------------------------
void main()
{
int j;
reg_wb_enable =1; // for enable writing to reg_debug_1 and reg_debug_2
reg_debug_1 = 0x0;
reg_debug_2 = 0x0;
reg_mprj_io_6 = GPIO_MODE_MGMT_STD_OUTPUT;
reg_mprj_io_5 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
reg_mprj_io_0 = GPIO_MODE_MGMT_STD_INPUT_NOPULL;
// Now, apply the configuration
reg_mprj_xfer = 1;
while (reg_mprj_xfer == 1);
(*(volatile uint32_t*) CSR_DEBUG_MODE_OUT_ADDR ) = 1; // enable debug mode
// start of the test
reg_debug_1 = 0xAA;
// very long wait
for (j = 0; j < 1600; j++);
for (j = 0; j < 1600; j++);
for (j = 0; j < 1600; j++);
}