From 910f4e77a2ef18e19de399380a2ce0968e3165f0 Mon Sep 17 00:00:00 2001 From: Erik van der Zalm Date: Sun, 11 Mar 2012 12:25:04 +0100 Subject: [PATCH] Added 20MHz support. --- Marlin/Configuration.h | 8 ++-- Marlin/create_speed_lookuptable.py | 7 +-- Marlin/speed_lookuptable.h | 76 ++++++++++++++++++++++++++++++ Marlin/stepper.cpp | 4 +- 4 files changed, 84 insertions(+), 11 deletions(-) diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h index 379aa1953b..2320dcebcd 100644 --- a/Marlin/Configuration.h +++ b/Marlin/Configuration.h @@ -82,13 +82,13 @@ //#define PID_OPENLOOP 1 // Puts PID in open loop. M104 sets the output power in % #define PID_INTEGRAL_DRIVE_MAX 255 //limit for the integral term #define K1 0.95 //smoothing factor withing the PID - #define PID_dT 0.128 //sampling period of the PID + #define PID_dT ((16.0 * 8.0)/(F_CPU / 64.0 / 256.0)) //sampling period of the // If you are using a preconfigured hotend then you can use one of the value sets by uncommenting it // Ultimaker #define DEFAULT_Kp 22.2 - #define DEFAULT_Ki (1.25*PID_dT) - #define DEFAULT_Kd (99/PID_dT) + #define DEFAULT_Ki (1.08*PID_dT) + #define DEFAULT_Kd (114/PID_dT) // Makergear // #define DEFAULT_Kp 7.0 @@ -194,7 +194,7 @@ const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of th #define ULTIPANEL #ifdef ULTIPANEL - #define NEWPANEL //enable this if you have a click-encoder panel +// #define NEWPANEL //enable this if you have a click-encoder panel #define SDSUPPORT #define ULTRA_LCD #define LCD_WIDTH 20 diff --git a/Marlin/create_speed_lookuptable.py b/Marlin/create_speed_lookuptable.py index 0272bdc9b3..13ed92d520 100755 --- a/Marlin/create_speed_lookuptable.py +++ b/Marlin/create_speed_lookuptable.py @@ -22,11 +22,8 @@ print print '#include "Marlin.h"' print -# Based on timer calculations of 'RepRap cartesian firmware' by Zack -# Smith and Philip Tiefenbacher. - print "const uint16_t speed_lookuptable_fast[256][2] PROGMEM = {" -a = [ timer_freq / ((i*256)+32) for i in range(256) ] +a = [ timer_freq / ((i*256)+(args.cpu_freq*2)) for i in range(256) ] b = [ a[i] - a[i+1] for i in range(255) ] b.append(b[-1]) for i in range(32): @@ -38,7 +35,7 @@ print "};" print print "const uint16_t speed_lookuptable_slow[256][2] PROGMEM = {" -a = [ timer_freq / ((i*8)+32) for i in range(256) ] +a = [ timer_freq / ((i*8)+(args.cpu_freq*2)) for i in range(256) ] b = [ a[i] - a[i+1] for i in range(255) ] b.append(b[-1]) for i in range(32): diff --git a/Marlin/speed_lookuptable.h b/Marlin/speed_lookuptable.h index 77f766188d..670e744c73 100644 --- a/Marlin/speed_lookuptable.h +++ b/Marlin/speed_lookuptable.h @@ -3,6 +3,8 @@ #include "Marlin.h" +#if F_CPU == 16000000 + const uint16_t speed_lookuptable_fast[256][2] PROGMEM = {\ { 62500, 55556}, { 6944, 3268}, { 3676, 1176}, { 2500, 607}, { 1893, 369}, { 1524, 249}, { 1275, 179}, { 1096, 135}, { 961, 105}, { 856, 85}, { 771, 69}, { 702, 58}, { 644, 49}, { 595, 42}, { 553, 37}, { 516, 32}, @@ -73,4 +75,78 @@ const uint16_t speed_lookuptable_slow[256][2] PROGMEM = {\ { 992, 4}, { 988, 4}, { 984, 4}, { 980, 4}, { 976, 4}, { 972, 4}, { 968, 3}, { 965, 3} }; +#else + +const uint16_t speed_lookuptable_fast[256][2] PROGMEM = { + {62500, 54055}, {8445, 3917}, {4528, 1434}, {3094, 745}, {2349, 456}, {1893, 307}, {1586, 222}, {1364, 167}, + {1197, 131}, {1066, 105}, {961, 86}, {875, 72}, {803, 61}, {742, 53}, {689, 45}, {644, 40}, + {604, 35}, {569, 32}, {537, 28}, {509, 25}, {484, 23}, {461, 21}, {440, 19}, {421, 17}, + {404, 16}, {388, 15}, {373, 14}, {359, 13}, {346, 12}, {334, 11}, {323, 10}, {313, 10}, + {303, 9}, {294, 9}, {285, 8}, {277, 7}, {270, 8}, {262, 7}, {255, 6}, {249, 6}, + {243, 6}, {237, 6}, {231, 5}, {226, 5}, {221, 5}, {216, 5}, {211, 4}, {207, 5}, + {202, 4}, {198, 4}, {194, 4}, {190, 3}, {187, 4}, {183, 3}, {180, 3}, {177, 4}, + {173, 3}, {170, 3}, {167, 2}, {165, 3}, {162, 3}, {159, 2}, {157, 3}, {154, 2}, + {152, 3}, {149, 2}, {147, 2}, {145, 2}, {143, 2}, {141, 2}, {139, 2}, {137, 2}, + {135, 2}, {133, 2}, {131, 2}, {129, 1}, {128, 2}, {126, 2}, {124, 1}, {123, 2}, + {121, 1}, {120, 2}, {118, 1}, {117, 1}, {116, 2}, {114, 1}, {113, 1}, {112, 2}, + {110, 1}, {109, 1}, {108, 1}, {107, 2}, {105, 1}, {104, 1}, {103, 1}, {102, 1}, + {101, 1}, {100, 1}, {99, 1}, {98, 1}, {97, 1}, {96, 1}, {95, 1}, {94, 1}, + {93, 1}, {92, 1}, {91, 0}, {91, 1}, {90, 1}, {89, 1}, {88, 1}, {87, 0}, + {87, 1}, {86, 1}, {85, 1}, {84, 0}, {84, 1}, {83, 1}, {82, 1}, {81, 0}, + {81, 1}, {80, 1}, {79, 0}, {79, 1}, {78, 0}, {78, 1}, {77, 1}, {76, 0}, + {76, 1}, {75, 0}, {75, 1}, {74, 1}, {73, 0}, {73, 1}, {72, 0}, {72, 1}, + {71, 0}, {71, 1}, {70, 0}, {70, 1}, {69, 0}, {69, 1}, {68, 0}, {68, 1}, + {67, 0}, {67, 1}, {66, 0}, {66, 1}, {65, 0}, {65, 0}, {65, 1}, {64, 0}, + {64, 1}, {63, 0}, {63, 1}, {62, 0}, {62, 0}, {62, 1}, {61, 0}, {61, 1}, + {60, 0}, {60, 0}, {60, 1}, {59, 0}, {59, 0}, {59, 1}, {58, 0}, {58, 0}, + {58, 1}, {57, 0}, {57, 0}, {57, 1}, {56, 0}, {56, 0}, {56, 1}, {55, 0}, + {55, 0}, {55, 1}, {54, 0}, {54, 0}, {54, 1}, {53, 0}, {53, 0}, {53, 0}, + {53, 1}, {52, 0}, {52, 0}, {52, 1}, {51, 0}, {51, 0}, {51, 0}, {51, 1}, + {50, 0}, {50, 0}, {50, 0}, {50, 1}, {49, 0}, {49, 0}, {49, 0}, {49, 1}, + {48, 0}, {48, 0}, {48, 0}, {48, 1}, {47, 0}, {47, 0}, {47, 0}, {47, 1}, + {46, 0}, {46, 0}, {46, 0}, {46, 0}, {46, 1}, {45, 0}, {45, 0}, {45, 0}, + {45, 1}, {44, 0}, {44, 0}, {44, 0}, {44, 0}, {44, 1}, {43, 0}, {43, 0}, + {43, 0}, {43, 0}, {43, 1}, {42, 0}, {42, 0}, {42, 0}, {42, 0}, {42, 0}, + {42, 1}, {41, 0}, {41, 0}, {41, 0}, {41, 0}, {41, 0}, {41, 1}, {40, 0}, + {40, 0}, {40, 0}, {40, 0}, {40, 1}, {39, 0}, {39, 0}, {39, 0}, {39, 0}, + {39, 0}, {39, 0}, {39, 1}, {38, 0}, {38, 0}, {38, 0}, {38, 0}, {38, 0}, +}; + +const uint16_t speed_lookuptable_slow[256][2] PROGMEM = { + {62500, 10417}, {52083, 7441}, {44642, 5580}, {39062, 4340}, {34722, 3472}, {31250, 2841}, {28409, 2368}, {26041, 2003}, + {24038, 1717}, {22321, 1488}, {20833, 1302}, {19531, 1149}, {18382, 1021}, {17361, 914}, {16447, 822}, {15625, 745}, + {14880, 676}, {14204, 618}, {13586, 566}, {13020, 520}, {12500, 481}, {12019, 445}, {11574, 414}, {11160, 385}, + {10775, 359}, {10416, 336}, {10080, 315}, {9765, 296}, {9469, 278}, {9191, 263}, {8928, 248}, {8680, 235}, + {8445, 222}, {8223, 211}, {8012, 200}, {7812, 191}, {7621, 181}, {7440, 173}, {7267, 165}, {7102, 158}, + {6944, 151}, {6793, 145}, {6648, 138}, {6510, 133}, {6377, 127}, {6250, 123}, {6127, 118}, {6009, 113}, + {5896, 109}, {5787, 106}, {5681, 101}, {5580, 98}, {5482, 95}, {5387, 91}, {5296, 88}, {5208, 86}, + {5122, 82}, {5040, 80}, {4960, 78}, {4882, 75}, {4807, 73}, {4734, 70}, {4664, 69}, {4595, 67}, + {4528, 64}, {4464, 63}, {4401, 61}, {4340, 60}, {4280, 58}, {4222, 56}, {4166, 55}, {4111, 53}, + {4058, 52}, {4006, 51}, {3955, 49}, {3906, 48}, {3858, 48}, {3810, 45}, {3765, 45}, {3720, 44}, + {3676, 43}, {3633, 42}, {3591, 40}, {3551, 40}, {3511, 39}, {3472, 38}, {3434, 38}, {3396, 36}, + {3360, 36}, {3324, 35}, {3289, 34}, {3255, 34}, {3221, 33}, {3188, 32}, {3156, 31}, {3125, 31}, + {3094, 31}, {3063, 30}, {3033, 29}, {3004, 28}, {2976, 28}, {2948, 28}, {2920, 27}, {2893, 27}, + {2866, 26}, {2840, 25}, {2815, 25}, {2790, 25}, {2765, 24}, {2741, 24}, {2717, 24}, {2693, 23}, + {2670, 22}, {2648, 22}, {2626, 22}, {2604, 22}, {2582, 21}, {2561, 21}, {2540, 20}, {2520, 20}, + {2500, 20}, {2480, 20}, {2460, 19}, {2441, 19}, {2422, 19}, {2403, 18}, {2385, 18}, {2367, 18}, + {2349, 17}, {2332, 18}, {2314, 17}, {2297, 16}, {2281, 17}, {2264, 16}, {2248, 16}, {2232, 16}, + {2216, 16}, {2200, 15}, {2185, 15}, {2170, 15}, {2155, 15}, {2140, 15}, {2125, 14}, {2111, 14}, + {2097, 14}, {2083, 14}, {2069, 14}, {2055, 13}, {2042, 13}, {2029, 13}, {2016, 13}, {2003, 13}, + {1990, 13}, {1977, 12}, {1965, 12}, {1953, 13}, {1940, 11}, {1929, 12}, {1917, 12}, {1905, 12}, + {1893, 11}, {1882, 11}, {1871, 11}, {1860, 11}, {1849, 11}, {1838, 11}, {1827, 11}, {1816, 10}, + {1806, 11}, {1795, 10}, {1785, 10}, {1775, 10}, {1765, 10}, {1755, 10}, {1745, 9}, {1736, 10}, + {1726, 9}, {1717, 10}, {1707, 9}, {1698, 9}, {1689, 9}, {1680, 9}, {1671, 9}, {1662, 9}, + {1653, 9}, {1644, 8}, {1636, 9}, {1627, 8}, {1619, 9}, {1610, 8}, {1602, 8}, {1594, 8}, + {1586, 8}, {1578, 8}, {1570, 8}, {1562, 8}, {1554, 7}, {1547, 8}, {1539, 8}, {1531, 7}, + {1524, 8}, {1516, 7}, {1509, 7}, {1502, 7}, {1495, 7}, {1488, 7}, {1481, 7}, {1474, 7}, + {1467, 7}, {1460, 7}, {1453, 7}, {1446, 6}, {1440, 7}, {1433, 7}, {1426, 6}, {1420, 6}, + {1414, 7}, {1407, 6}, {1401, 6}, {1395, 7}, {1388, 6}, {1382, 6}, {1376, 6}, {1370, 6}, + {1364, 6}, {1358, 6}, {1352, 6}, {1346, 5}, {1341, 6}, {1335, 6}, {1329, 5}, {1324, 6}, + {1318, 5}, {1313, 6}, {1307, 5}, {1302, 6}, {1296, 5}, {1291, 5}, {1286, 6}, {1280, 5}, + {1275, 5}, {1270, 5}, {1265, 5}, {1260, 5}, {1255, 5}, {1250, 5}, {1245, 5}, {1240, 5}, + {1235, 5}, {1230, 5}, {1225, 5}, {1220, 5}, {1215, 4}, {1211, 5}, {1206, 5}, {1201, 5}, +}; + +#endif + #endif diff --git a/Marlin/stepper.cpp b/Marlin/stepper.cpp index 5b1ad74175..e9b42f45de 100644 --- a/Marlin/stepper.cpp +++ b/Marlin/stepper.cpp @@ -236,8 +236,8 @@ FORCE_INLINE unsigned short calc_timer(unsigned short step_rate) { step_loops = 1; } - if(step_rate < 32) step_rate = 32; - step_rate -= 32; // Correct for minimal speed + if(step_rate < (F_CPU/500000)) step_rate = (F_CPU/500000); + step_rate -= (F_CPU/500000); // Correct for minimal speed if(step_rate >= (8*256)){ // higher step rate unsigned short table_address = (unsigned short)&speed_lookuptable_fast[(unsigned char)(step_rate>>8)][0]; unsigned char tmp_step_rate = (step_rate & 0x00ff);