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// #################################################################################################
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// # < Custom Functions Unit Test Program > #
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// # ********************************************************************************************* #
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// # BSD 3-Clause License #
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// # #
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// # Copyright (c) 2020, Stephan Nolting. All rights reserved. #
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// # #
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// # Redistribution and use in source and binary forms, with or without modification, are #
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// # permitted provided that the following conditions are met: #
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// # #
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// # 1. Redistributions of source code must retain the above copyright notice, this list of #
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// # conditions and the following disclaimer. #
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// # #
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// # 2. Redistributions in binary form must reproduce the above copyright notice, this list of #
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// # conditions and the following disclaimer in the documentation and/or other materials #
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// # provided with the distribution. #
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// # #
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// # 3. Neither the name of the copyright holder nor the names of its contributors may be used to #
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// # endorse or promote products derived from this software without specific prior written #
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// # permission. #
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// # #
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// # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS #
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// # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF #
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// # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE #
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// # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, #
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// # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE #
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// # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED #
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// # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING #
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// # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED #
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// # OF THE POSSIBILITY OF SUCH DAMAGE. #
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// # ********************************************************************************************* #
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// # The NEO430 Processor - https://github.com/stnolting/neo430 #
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// #################################################################################################
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// Libraries
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#include <stdint.h>
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#include <neo430.h>
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// Configuration
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#define BAUD_RATE 19200
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// Prototypes
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void verify16(char *s, uint16_t a, uint16_t b);
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/* ------------------------------------------------------------
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* INFO Main function
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* ------------------------------------------------------------ */
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int main(void) {
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// setup UART
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neo430_uart_setup(BAUD_RATE);
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// intro text
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neo430_uart_br_print("\nCustom Functions Unit (CFU) test program\n");
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// check if CFU present
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if (!(SYS_FEATURES & (1<<SYS_CFU_EN))) {
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neo430_uart_br_print("Error! No CFU synthesized!");
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return 1;
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}
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// wait for user to start
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neo430_uart_br_print("Press any key to start.\n\n");
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while (neo430_uart_char_received() == 0);
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// initialize test vectors
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uint8_t i;
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uint16_t test_data16[16];
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for (i=0; i<8; i++)
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test_data16[i] = i*1728 + 913;
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neo430_uart_br_print("Testing read/write accesses...\n");
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CFU_REG0 = test_data16[0];
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verify16("CFU_REG0", CFU_REG0, test_data16[0]);
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CFU_REG1 = test_data16[1];
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verify16("CFU_REG1", CFU_REG1, test_data16[1]);
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CFU_REG2 = test_data16[2];
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verify16("CFU_REG2", CFU_REG2, test_data16[2]);
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CFU_REG3 = test_data16[3];
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verify16("CFU_REG3", CFU_REG3, test_data16[3]);
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CFU_REG4 = test_data16[4];
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verify16("CFU_REG4", CFU_REG4, test_data16[4]);
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CFU_REG5 = test_data16[5];
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verify16("CFU_REG5", CFU_REG5, test_data16[5]);
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CFU_REG6 = test_data16[6];
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verify16("CFU_REG6", CFU_REG6, test_data16[6]);
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CFU_REG7 = test_data16[7];
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verify16("CFU_REG7", CFU_REG7, test_data16[7]);
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return 0;
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}
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/* ------------------------------------------------------------
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* INFO Verify 16-bit transfer
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* ------------------------------------------------------------ */
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void verify16(char *s, uint16_t a, uint16_t b) {
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neo430_uart_br_print("Checking ");
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neo430_uart_br_print(s);
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neo430_uart_br_print(" - expected: 0x");
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neo430_uart_print_hex_word(b);
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neo430_uart_br_print(", received: 0x");
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neo430_uart_print_hex_word(a);
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if (a == b)
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neo430_uart_br_print(" - OK\n");
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else
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neo430_uart_br_print(" - FAILED\n");
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}
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