/* * 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 #include // -------------------------------------------------------- /* * Management SoC GPIO Pin Test * Tests writing to the GPIO pin. */ void main() { reg_wb_enable =1; // for enable writing to reg_debug_1 and reg_debug_2 reg_debug_1 = 0x0; reg_debug_2 = 0x0; reg_gpio_mode1 = 1; reg_gpio_mode0 = 0; // for full swing reg_gpio_ien = 1; reg_gpio_oe = 0; int num_blinks = 0; reg_debug_1 = 0xAA; // start of the test int z = reg_debug_1; while (true) { // reg_debug_2 = z; // z= reg_debug_1; while(reg_gpio_in == 0); while(reg_gpio_in == 1); num_blinks++; if (reg_debug_1 == 0xFF) break; } reg_gpio_ien = 0; reg_gpio_oe = 1; for (int i = 0; i < num_blinks; i++) { /* Fast blink for simulation */ reg_gpio_out = 1; reg_gpio_out = 0; } reg_debug_2 = 0xFF; //finish test print("adding a very very long delay because cpu produces X's when code finish and this break the simulation"); }