| /* |
| * 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> |
| |
| #define SET(PIN,N) (PIN |= (1<<N)) |
| #define CLR(PIN,N) (PIN &= ~(1<<N)) |
| #define GET(PIN,N) (PIN & (1<<N)) |
| |
| #define FW_READY 12 |
| |
| 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 | |
| |
| */ |
| |
| // 2 inputs for enable logic analyser control |
| reg_mprj_io_8 = GPIO_MODE_USER_STD_INPUT_NOPULL; |
| reg_mprj_io_9 = GPIO_MODE_USER_STD_INPUT_NOPULL; |
| |
| /* |
| inputs (io_in[28:21]), |
| outputs (io_out[36:29]), |
| ext_scan_clk = inputs[0]; |
| ext_scan_data_in = inputs[1]; |
| ext_scan_clk_in = outputs[0] |
| ext_scan_data_in = outputs[1] |
| ext_scan_select = inputs[2]; |
| ext_scan_latch_en = inputs[3]; |
| |
| assign outputs = driver_sel[1] ? aio_output_reg : {6'b0, ext_scan_data_in, ext_scan_clk_in}; |
| */ |
| |
| reg_mprj_io_21 = GPIO_MODE_USER_STD_INPUT_NOPULL; // clk |
| reg_mprj_io_22 = GPIO_MODE_USER_STD_INPUT_NOPULL; // data in |
| reg_mprj_io_23 = GPIO_MODE_USER_STD_INPUT_NOPULL; // scan |
| reg_mprj_io_24 = GPIO_MODE_USER_STD_INPUT_NOPULL; // latch |
| |
| reg_mprj_io_29 = GPIO_MODE_USER_STD_OUTPUT; // clk out |
| reg_mprj_io_30 = GPIO_MODE_USER_STD_OUTPUT; // data out |
| |
| // outputs for testbench control |
| reg_mprj_io_12 = GPIO_MODE_MGMT_STD_OUTPUT; // fw ready |
| |
| /* Apply configuration */ |
| reg_mprj_xfer = 1; |
| while (reg_mprj_xfer == 1); |
| |
| reg_mprj_datal |= 1 << FW_READY; |
| } |