//------------------------------------------------------------------------------ // setup-eim.c //------------------------------------------------------------------------------ //------------------------------------------------------------------------------ // Headers //------------------------------------------------------------------------------ #include #include #include "novena-eim.h" //------------------------------------------------------------------------------ // Demo Adder //------------------------------------------------------------------------------ #define DEMO_ADDER_BASE_ADDR (0x3210) #define DEMO_ADDER_REG_X (EIM_BASE_ADDR + DEMO_ADDER_BASE_ADDR + (0<<2)) #define DEMO_ADDER_REG_Y (EIM_BASE_ADDR + DEMO_ADDER_BASE_ADDR + (1<<2)) #define DEMO_ADDER_REG_Z (EIM_BASE_ADDR + DEMO_ADDER_BASE_ADDR + (2<<2)) #define DEMO_ADDER_REG_SC (EIM_BASE_ADDR + DEMO_ADDER_BASE_ADDR + (3<<2)) //------------------------------------------------------------------------------ // Prototypes //------------------------------------------------------------------------------ unsigned int demo_adder_test_round (unsigned int, unsigned int); unsigned int lfsr_next_x (unsigned int); unsigned int lfsr_next_y (unsigned int); //------------------------------------------------------------------------------ // Testing Parameters //------------------------------------------------------------------------------ const int NUM_TEST_ROUNDS = 10000; const int PRINT_XYZ_VALUES = 1; //------------------------------------------------------------------------------ int main() //------------------------------------------------------------------------------ { // try to setup eim (return value should be 1) printf("Configuring EIM .. "); int ok = eim_setup(); if (ok < 1) { printf("ERROR\n"); return EXIT_FAILURE; } else printf("OK\n"); // run test int i; unsigned int x = 0x12341234, y = 0xABCDABCD, zyx; printf("Testing started.\n"); for (i=0; i>= 16; if (sts != ctl) { printf("ERROR: Adder timeout!\n"); exit(EXIT_FAILURE); } // read z unsigned int z; eim_read_32(DEMO_ADDER_REG_Z, &z); // uncomment to trigger an error /** z++; **/ // done return z; } //------------------------------------------------------------------------------ unsigned int lfsr_next_x(unsigned int value) //------------------------------------------------------------------------------ { // // [32, 31, 29, 28, 27, 25, 24, 23, 21, 19, 17, 14, 10, 6, 4, 2] // 0 1 3 4 5 7 8 9 11 13 15 18 22 24 28 30 // unsigned int carry = 0; carry ^= (value >> 0); carry ^= (value >> 1); carry ^= (value >> 3); carry ^= (value >> 4); carry ^= (value >> 5); carry ^= (value >> 7); carry ^= (value >> 8); carry ^= (value >> 9); carry ^= (value >> 11); carry ^= (value >> 13); carry ^= (value >> 15); carry ^= (value >> 18); carry ^= (value >> 22); carry ^= (value >> 24); carry ^= (value >> 28); carry ^= (value >> 30); value >>= 1, value |= (carry << 31); return value; } //------------------------------------------------------------------------------ unsigned int lfsr_next_y(unsigned int value) //------------------------------------------------------------------------------ { // // [32, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 1] // 0 15 16 17 18 19 20 21 22 23 24 25 26 27 28 31 // unsigned int carry = 0; carry ^= (value >> 0); carry ^= (value >> 15); carry ^= (value >> 16); carry ^= (value >> 17); carry ^= (value >> 18); carry ^= (value >> 19); carry ^= (value >> 20); carry ^= (value >> 21); carry ^= (value >> 22); carry ^= (value >> 23); carry ^= (value >> 24); carry ^= (value >> 25); carry ^= (value >> 26); carry ^= (value >> 27); carry ^= (value >> 28); carry ^= (value >> 31); value >>= 1, value |= (carry << 31); return value; } //------------------------------------------------------------------------------ // End-of-File //------------------------------------------------------------------------------ edrik@thulin.net> 2016-05-26 13:27:04 +0200 Figure out if the user (me) has a NUCLEO board.' href='/sw/stm32/commit/bin/debug?h=js_keywrap&id=ea0c0ce7e1cee6d65e70ccd0723ea59e08662e19'>ea0c0ce 
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