| ////////////////////////////////////////////////////////////////////////////// |
| // SPDX-FileCopyrightText: 2021, Dinesh Annayya |
| // |
| // 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 |
| // SPDX-FileContributor: Dinesh Annayya <dinesha@opencores.org> |
| // ////////////////////////////////////////////////////////////////////////// |
| #define SC_SIM_OUTPORT (0xf0000000) |
| #define uint32_t long |
| |
| |
| #define reg_mprj_uart_reg0 (*(volatile uint32_t*)0x10010000) |
| #define reg_mprj_uart_reg1 (*(volatile uint32_t*)0x10010004) |
| #define reg_mprj_uart_reg2 (*(volatile uint32_t*)0x10010008) |
| #define reg_mprj_uart_reg3 (*(volatile uint32_t*)0x1001000C) |
| #define reg_mprj_uart_reg4 (*(volatile uint32_t*)0x10010010) |
| #define reg_mprj_uart_reg5 (*(volatile uint32_t*)0x10010014) |
| #define reg_mprj_uart_reg6 (*(volatile uint32_t*)0x10010018) |
| #define reg_mprj_uart_reg7 (*(volatile uint32_t*)0x1001001C) |
| #define reg_mprj_uart_reg8 (*(volatile uint32_t*)0x10010020) |
| |
| int main() |
| { |
| |
| while(1) { |
| // Check UART RX fifo has data, if available loop back the data |
| // Also check txfifo is not full |
| if((reg_mprj_uart_reg8 != 0) && ((reg_mprj_uart_reg4 & 0x1) != 0x1)) { |
| reg_mprj_uart_reg5 = reg_mprj_uart_reg6; |
| } |
| } |
| |
| return 0; |
| } |
