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jim940

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  1. Like
    jim940 got a reaction from larsie in Cheap circuit for powering MSP430 from 230V   
    Many cell phone USB chargers and laptop chargers today can switch from 120V/230V without a issue. Cause its cheaper to make one set of internals for everything then not nowadays. Check the back of your chargers, you might have one waiting and available already. World wide all companies do is change the plastic plate that faces the wall with the appropriate plug configuration during manufacture in their last operation so it costs no where near as much as running dedicated lines producing different adapters for different markets. Or in the case of laptop AC Adapters is provide you with a different 3ft length of cable with the appropriate plug attached to that instead of the expensive part (the AC/DC adapter itself).
     
    My Nokia cell phone charger is rated for a input of 100V-240V @ 50-60Hz and outputs 5V DC at 1.2A.
     
    As the examples closest to my desk that will give you your 5V DC and if your really cheap to drop the $5 5V power from the adapter do what oPossum does, use a LED to drop it down to ~3V.
     

     
    Jim
  2. Like
    jim940 got a reaction from MarkoeZ in Incase anyone wants a 14 DIP G2553   
    There was a discussion if a MSP430G2553 could survive being sliced into a 14 DIP package. And well I like a good challange. So I just had to try and see if it would die or not.
     

     

     

     
    Jim
  3. Like
    jim940 reacted to oPossum in Fraunchpad Synth - Still Alive   
    The note envelope is a simple exponential decay. After each cycle of the waveform, the level is multiplied by 65408/65536 (0.99805). Higher frequency notes will decay faster then lower frequency.

    The music data is in an array in FRAM, it is not MIDI driven like the previous version

    Inspired by this project

    main.c
    #include "msp430fr5739.h" #include "alive.h" void set_tick(unsigned); unsigned get_tick(void); void synth_init(void); void set_note(int, int, int); int wave[257] = { 0, 804, 1608, 2410, 3212, 4011, 4808, 5602, 6393, 7179, 7962, 8739, 9512, 10278, 11039, 11793, 12539, 13279, 14010, 14732, 15446, 16151, 16846, 17530, 18204, 18868, 19519, 20159, 20787, 21403, 22005, 22594, 23170, 23731, 24279, 24811, 25329, 25832, 26319, 26790, 27245, 27683, 28105, 28510, 28898, 29268, 29621, 29956, 30273, 30571, 30852, 31113, 31356, 31580, 31785, 31971, 32137, 32285, 32412, 32521, 32609, 32678, 32728, 32757, 32767, 32757, 32728, 32678, 32609, 32521, 32412, 32285, 32137, 31971, 31785, 31580, 31356, 31113, 30852, 30571, 30273, 29956, 29621, 29268, 28898, 28510, 28105, 27683, 27245, 26790, 26319, 25832, 25329, 24811, 24279, 23731, 23170, 22594, 22005, 21403, 20787, 20159, 19519, 18868, 18204, 17530, 16846, 16151, 15446, 14732, 14010, 13279, 12539, 11793, 11039, 10278, 9512, 8739, 7962, 7179, 6393, 5602, 4808, 4011, 3212, 2410, 1608, 804, 0, -804, -1608, -2410, -3212, -4011, -4808, -5602, -6393, -7179, -7962, -8739, -9512, -10278, -11039, -11793, -12539, -13279, -14010, -14732, -15446, -16151, -16846, -17530, -18204, -18868, -19519, -20159, -20787, -21403, -22005, -22594, -23170, -23731, -24279, -24811, -25329, -25832, -26319, -26790, -27245, -27683, -28105, -28510, -28898, -29268, -29621, -29956, -30273, -30571, -30852, -31113, -31356, -31580, -31785, -31971, -32137, -32285, -32412, -32521, -32609, -32678, -32728, -32757, -32767, -32757, -32728, -32678, -32609, -32521, -32412, -32285, -32137, -31971, -31785, -31580, -31356, -31113, -30852, -30571, -30273, -29956, -29621, -29268, -28898, -28510, -28105, -27683, -27245, -26790, -26319, -25832, -25329, -24811, -24279, -23731, -23170, -22594, -22005, -21403, -20787, -20159, -19519, -18868, -18204, -17530, -16846, -16151, -15446, -14732, -14010, -13279, -12539, -11793, -11039, -10278, -9512, -8739, -7962, -7179, -6393, -5602, -4808, -4011, -3212, -2410, -1608, -804, 0 }; void main(void) { unsigned osc; const struct event_t *e; WDTCTL = WDTPW + WDTHOLD; CSCTL0 = 0xA500; // Unlock clock registers CSCTL1 = DCORSEL | DCOFSEL1 | DCOFSEL0; // 24 MHz CSCTL2 = 0x0333; // Use DCO clock for ACLK, SMCLK and MCLK CSCTL3 = 0x0000; // Set all clock divider to 1 //CSCTL4 = //CSCTL5 = P1DIR = 0x01; // PWM audio output on P1.0 P1REN = 0x00; // P1OUT = 0x00; // P1SEL0 = 0x01; // Enable Timer A output P1SEL1 = 0x00; // P2DIR = 0x00; // P2REN = 0x00; // P2OUT = 0x00; // P2SEL0 = 0x00; // P2SEL1 = 0x03; // Enable UART UCA0 P3DIR = 0x10; // P3REN = 0x00; // P3OUT = 0x00; // P3SEL0 = 0x10; // SMCLK output P3SEL1 = 0x10; // SMCLK output P4DIR = 0x00; // P4REN = 0x00; // P4OUT = 0x00; // P4SEL0 = 0x00; // P4SEL1 = 0x00; // PJDIR = 0x0F; // 4 LEDs PJREN = 0x00; // PJOUT = 0x00; // PJSEL0 = 0x00; // PJSEL1 = 0x00; // UCA0MCTLW = 1; // 16x oversampling UCA0BRW = 24000000 / 16 / 9600; // Fraunchpad UART //UCA0BRW = 24000000 / 16/ 31250; // Standard MIDI bit rate UCA0CTLW0 = 0x0080; // Use SMCLK for bit rate generator, release reset synth_init(); for(osc = 0, e = tune_still_alive; e->pitch; ++e) { set_note(osc++ & 7, e->pitch, 9000); ++PJOUT; set_tick((e[1].time - e[0].time) * 150); while(get_tick()); } }

    alive.h

    struct event_t { unsigned time; unsigned pitch; }; static const struct event_t tune_still_alive[] = { 192, 91, 240, 90, 288, 88, 336, 88, 384, 69, 384, 90, 432, 74, 480, 78, 528, 74, 576, 71, 624, 74, 672, 78, 720, 74, 768, 69, 816, 74, 864, 78, 912, 74, 912, 81, 960, 71, 960, 91, 1008, 74, 1008, 90, 1056, 78, 1056, 88, 1104, 74, 1104, 88, 1152, 69, 1200, 74, 1200, 90, 1248, 78, 1296, 74, 1344, 71, 1344, 86, 1392, 74, 1440, 78, 1440, 88, 1488, 74, 1488, 81, 1536, 69, 1584, 74, 1632, 78, 1680, 74, 1728, 71, 1776, 74, 1824, 78, 1872, 74, 1872, 81, 1920, 71, 1920, 88, 1968, 76, 2016, 79, 2016, 90, 2064, 76, 2064, 91, 2112, 71, 2160, 76, 2208, 79, 2208, 88, 2256, 76, 2256, 85, 2304, 69, 2352, 73, 2352, 86, 2400, 79, 2448, 73, 2496, 69, 2496, 88, 2544, 73, 2592, 79, 2592, 81, 2640, 73, 2640, 81, 2688, 69, 2736, 74, 2736, 90, 2784, 78, 2832, 74, 2880, 71, 2928, 74, 2976, 78, 3024, 74, 3072, 69, 3120, 74, 3168, 78, 3216, 74, 3264, 71, 3264, 91, 3312, 74, 3312, 90, 3360, 78, 3360, 88, 3408, 74, 3408, 88, 3456, 69, 3456, 90, 3504, 74, 3552, 78, 3600, 74, 3648, 71, 3696, 74, 3744, 78, 3792, 74, 3840, 69, 3888, 74, 3936, 78, 3984, 74, 3984, 81, 4032, 71, 4032, 91, 4080, 74, 4080, 90, 4128, 78, 4128, 88, 4176, 74, 4176, 88, 4224, 69, 4272, 74, 4320, 78, 4320, 90, 4368, 74, 4368, 86, 4416, 71, 4464, 74, 4512, 78, 4512, 88, 4560, 74, 4560, 81, 4608, 69, 4656, 74, 4704, 78, 4752, 74, 4800, 71, 4848, 74, 4896, 78, 4944, 74, 4992, 71, 4992, 88, 5040, 76, 5088, 79, 5088, 90, 5136, 76, 5136, 91, 5184, 71, 5232, 76, 5280, 79, 5280, 88, 5328, 76, 5328, 85, 5376, 69, 5424, 73, 5472, 79, 5472, 86, 5520, 73, 5520, 88, 5568, 69, 5616, 73, 5616, 81, 5664, 79, 5664, 86, 5712, 73, 5712, 88, 5760, 70, 5760, 89, 5808, 74, 5808, 88, 5856, 77, 5856, 86, 5904, 81, 5904, 84, 6048, 81, 6096, 82, 6141, 89, 6144, 105, 6144, 72, 6144, 77, 6144, 84, 6192, 81, 6192, 96, 6240, 108, 6240, 72, 6240, 77, 6240, 89, 6288, 96, 6336, 103, 6336, 72, 6336, 76, 6336, 88, 6336, 88, 6384, 79, 6384, 86, 6384, 96, 6432, 108, 6432, 72, 6432, 76, 6432, 86, 6480, 84, 6480, 96, 6528, 106, 6528, 70, 6528, 74, 6528, 86, 6528, 86, 6576, 105, 6576, 82, 6576, 84, 6576, 96, 6624, 103, 6624, 70, 6624, 74, 6624, 84, 6672, 76, 6672, 96, 6720, 105, 6720, 72, 6720, 77, 6720, 84, 6720, 89, 6768, 81, 6768, 96, 6816, 101, 6816, 72, 6816, 77, 6816, 81, 6864, 82, 6864, 96, 6909, 89, 6912, 105, 6912, 72, 6912, 77, 6912, 84, 6960, 81, 6960, 96, 7008, 108, 7008, 72, 7008, 77, 7008, 89, 7056, 96, 7104, 103, 7104, 72, 7104, 76, 7104, 88, 7104, 91, 7152, 79, 7152, 89, 7152, 96, 7200, 108, 7200, 72, 7200, 76, 7200, 88, 7248, 86, 7248, 96, 7296, 106, 7296, 70, 7296, 74, 7296, 86, 7296, 86, 7344, 105, 7344, 82, 7344, 88, 7344, 96, 7392, 103, 7392, 70, 7392, 74, 7392, 89, 7440, 76, 7440, 96, 7488, 105, 7488, 72, 7488, 77, 7488, 89, 7488, 89, 7536, 81, 7536, 96, 7584, 101, 7584, 72, 7584, 77, 7584, 91, 7632, 93, 7632, 96, 7680, 103, 7680, 70, 7680, 74, 7680, 91, 7680, 94, 7728, 106, 7728, 79, 7728, 94, 7776, 105, 7776, 70, 7776, 74, 7776, 93, 7824, 103, 7824, 79, 7872, 100, 7872, 72, 7872, 76, 7872, 91, 7872, 91, 7920, 101, 7920, 79, 7968, 103, 7968, 72, 7968, 76, 7968, 89, 8016, 108, 8016, 79, 8016, 91, 8064, 105, 8064, 72, 8064, 77, 8064, 89, 8064, 93, 8112, 108, 8112, 81, 8112, 93, 8160, 103, 8160, 72, 8160, 77, 8160, 88, 8160, 91, 8208, 108, 8208, 81, 8256, 101, 8256, 74, 8256, 77, 8256, 86, 8256, 89, 8304, 81, 8304, 93, 8352, 105, 8352, 74, 8352, 77, 8352, 86, 8400, 81, 8400, 84, 8445, 89, 8448, 106, 8448, 70, 8448, 74, 8448, 86, 8496, 79, 8496, 89, 8496, 98, 8544, 101, 8544, 70, 8544, 74, 8544, 89, 8592, 79, 8592, 88, 8592, 98, 8640, 105, 8640, 69, 8640, 73, 8640, 88, 8688, 79, 8688, 88, 8688, 97, 8736, 103, 8736, 69, 8736, 73, 8736, 74, 8736, 90, 8784, 102, 8784, 79, 8784, 90, 8832, 62, 8832, 69, 8880, 74, 8928, 78, 8976, 62, 8976, 74, 9024, 59, 9024, 71, 9072, 74, 9120, 78, 9168, 59, 9168, 74, 9216, 62, 9216, 69, 9264, 74, 9312, 78, 9360, 62, 9360, 74, 9408, 59, 9408, 71, 9456, 74, 9504, 78, 9552, 59, 9552, 74, 9600, 62, 9600, 69, 9648, 74, 9696, 78, 9744, 62, 9744, 74, 9792, 59, 9792, 71, 9840, 74, 9888, 78, 9936, 59, 9936, 74, 9984, 62, 9984, 69, 10032, 74, 10080, 78, 10128, 62, 10128, 74, 10128, 81, 10176, 71, 10176, 71, 10176, 91, 10224, 74, 10224, 90, 10272, 71, 10272, 78, 10272, 88, 10320, 69, 10320, 74, 10320, 88, 10368, 62, 10368, 69, 10368, 90, 10416, 74, 10464, 78, 10512, 62, 10512, 74, 10560, 59, 10560, 71, 10608, 74, 10656, 78, 10704, 59, 10704, 74, 10752, 62, 10752, 69, 10800, 74, 10848, 78, 10896, 62, 10896, 74, 10944, 59, 10944, 71, 10944, 91, 10992, 74, 10992, 90, 11040, 78, 11040, 88, 11088, 59, 11088, 74, 11088, 88, 11136, 62, 11136, 69, 11184, 74, 11232, 78, 11232, 90, 11280, 62, 11280, 74, 11280, 86, 11328, 59, 11328, 71, 11376, 74, 11376, 88, 11424, 78, 11472, 59, 11472, 74, 11472, 81, 11520, 62, 11520, 69, 11568, 74, 11616, 78, 11664, 62, 11664, 74, 11712, 59, 11712, 71, 11760, 74, 11808, 78, 11856, 59, 11856, 74, 11904, 64, 11904, 71, 11904, 88, 11952, 76, 12000, 79, 12000, 90, 12048, 64, 12048, 76, 12048, 91, 12096, 64, 12096, 71, 12144, 66, 12144, 76, 12192, 67, 12192, 79, 12192, 88, 12240, 76, 12288, 57, 12288, 69, 12288, 85, 12336, 73, 12384, 79, 12384, 86, 12432, 57, 12432, 73, 12432, 88, 12480, 57, 12480, 69, 12528, 59, 12528, 73, 12576, 61, 12576, 79, 12576, 81, 12624, 73, 12624, 81, 12672, 62, 12672, 69, 12720, 74, 12720, 90, 12768, 78, 12816, 62, 12816, 74, 12864, 59, 12864, 71, 12912, 74, 12960, 78, 13008, 59, 13008, 74, 13056, 62, 13056, 69, 13104, 74, 13152, 78, 13200, 62, 13200, 74, 13200, 81, 13200, 86, 13248, 71, 13248, 71, 13248, 91, 13248, 95, 13296, 74, 13296, 90, 13296, 93, 13344, 71, 13344, 78, 13344, 88, 13344, 91, 13392, 69, 13392, 74, 13392, 88, 13392, 91, 13440, 62, 13440, 69, 13440, 90, 13440, 93, 13488, 74, 13536, 78, 13584, 62, 13584, 74, 13632, 59, 13632, 71, 13680, 74, 13728, 78, 13776, 59, 13776, 74, 13824, 62, 13824, 69, 13872, 74, 13920, 78, 13968, 62, 13968, 74, 13968, 81, 13968, 86, 14016, 59, 14016, 71, 14016, 91, 14016, 95, 14064, 74, 14064, 90, 14064, 93, 14112, 78, 14112, 88, 14112, 91, 14160, 59, 14160, 74, 14160, 88, 14160, 91, 14208, 62, 14208, 69, 14256, 74, 14304, 78, 14304, 90, 14304, 93, 14352, 62, 14352, 74, 14352, 86, 14352, 90, 14400, 59, 14400, 71, 14448, 74, 14496, 78, 14496, 88, 14496, 91, 14544, 59, 14544, 74, 14544, 81, 14544, 86, 14592, 62, 14592, 69, 14640, 74, 14688, 78, 14736, 62, 14736, 74, 14784, 59, 14784, 71, 14832, 74, 14880, 78, 14928, 59, 14928, 74, 14976, 64, 14976, 71, 14976, 88, 15024, 76, 15072, 79, 15072, 90, 15120, 64, 15120, 76, 15120, 91, 15168, 64, 15168, 71, 15216, 66, 15216, 76, 15264, 67, 15264, 79, 15264, 88, 15312, 76, 15360, 57, 15360, 69, 15360, 85, 15408, 73, 15456, 79, 15456, 86, 15504, 57, 15504, 73, 15504, 88, 15552, 57, 15552, 69, 15600, 59, 15600, 73, 15600, 81, 15648, 61, 15648, 79, 15648, 86, 15696, 57, 15696, 73, 15696, 88, 15744, 58, 15744, 70, 15744, 89, 15792, 74, 15792, 88, 15840, 81, 15840, 86, 15888, 70, 15888, 77, 15888, 84, 15936, 81, 15984, 77, 16032, 70, 16032, 77, 16032, 81, 16032, 81, 16080, 57, 16080, 77, 16080, 79, 16080, 82, 16128, 65, 16128, 72, 16128, 77, 16128, 81, 16128, 84, 16176, 81, 16224, 72, 16224, 77, 16224, 84, 16224, 89, 16272, 65, 16320, 60, 16320, 72, 16320, 76, 16320, 84, 16320, 88, 16368, 79, 16368, 86, 16416, 72, 16416, 76, 16416, 82, 16416, 86, 16464, 60, 16464, 81, 16464, 84, 16512, 58, 16512, 70, 16512, 74, 16512, 82, 16512, 86, 16560, 81, 16560, 82, 16560, 84, 16608, 70, 16608, 74, 16608, 81, 16608, 84, 16656, 58, 16656, 76, 16704, 65, 16704, 72, 16704, 77, 16704, 81, 16704, 84, 16752, 81, 16800, 72, 16800, 77, 16800, 79, 16800, 81, 16848, 77, 16848, 82, 16896, 65, 16896, 72, 16896, 77, 16896, 77, 16896, 84, 16944, 81, 16992, 72, 16992, 77, 16992, 81, 16992, 89, 17040, 65, 17088, 60, 17088, 72, 17088, 76, 17088, 82, 17088, 91, 17136, 79, 17136, 81, 17136, 89, 17184, 72, 17184, 76, 17184, 79, 17184, 88, 17232, 60, 17232, 77, 17232, 86, 17280, 58, 17280, 70, 17280, 74, 17280, 77, 17280, 86, 17328, 79, 17328, 82, 17328, 88, 17376, 70, 17376, 74, 17376, 81, 17376, 89, 17424, 58, 17424, 76, 17472, 65, 17472, 72, 17472, 77, 17472, 81, 17472, 89, 17520, 81, 17568, 65, 17568, 72, 17568, 77, 17568, 82, 17568, 91, 17616, 60, 17616, 84, 17616, 93, 17664, 58, 17664, 70, 17664, 74, 17664, 86, 17664, 94, 17712, 79, 17712, 86, 17712, 94, 17760, 58, 17760, 70, 17760, 74, 17760, 84, 17760, 93, 17808, 79, 17856, 60, 17856, 72, 17856, 76, 17856, 84, 17856, 91, 17904, 79, 17952, 60, 17952, 72, 17952, 76, 17952, 81, 17952, 89, 18000, 79, 18000, 82, 18000, 91, 18048, 65, 18048, 72, 18048, 77, 18048, 84, 18048, 93, 18096, 81, 18096, 84, 18096, 93, 18144, 64, 18144, 72, 18144, 77, 18144, 82, 18144, 91, 18192, 81, 18192, 89, 18240, 62, 18240, 74, 18240, 77, 18240, 81, 18240, 89, 18288, 81, 18336, 60, 18336, 74, 18336, 77, 18336, 79, 18336, 86, 18384, 77, 18384, 81, 18384, 84, 18432, 58, 18432, 70, 18432, 74, 18432, 77, 18432, 86, 18480, 79, 18480, 79, 18480, 89, 18528, 65, 18528, 70, 18528, 74, 18528, 81, 18528, 89, 18576, 79, 18576, 79, 18576, 88, 18624, 57, 18624, 69, 18624, 73, 18672, 79, 18672, 79, 18672, 88, 18720, 64, 18720, 69, 18720, 73, 18720, 81, 18720, 90, 18768, 79, 18768, 81, 18768, 90, 18816, 62, 18816, 69, 18864, 74, 18912, 78, 18960, 62, 18960, 74, 19008, 59, 19008, 71, 19056, 74, 19104, 78, 19152, 59, 19152, 74, 19200, 62, 19200, 69, 19248, 74, 19296, 78, 19344, 62, 19344, 74, 19392, 59, 19392, 71, 19440, 74, 19488, 78, 19536, 59, 19536, 74, 19584, 62, 19584, 69, 19632, 74, 19680, 78, 19728, 62, 19728, 74, 19776, 59, 19776, 71, 19824, 74, 19872, 78, 19920, 59, 19920, 74, 19968, 62, 19968, 69, 20016, 74, 20064, 78, 20112, 62, 20112, 74, 20160, 71, 20160, 71, 20160, 91, 20184, 91, 20208, 74, 20208, 90, 20256, 71, 20256, 78, 20256, 88, 20304, 69, 20304, 74, 20304, 88, 20352, 69, 20376, 90, 20400, 74, 20448, 78, 20496, 74, 20544, 71, 20592, 74, 20640, 78, 20688, 74, 20736, 69, 20784, 74, 20832, 78, 20880, 74, 20880, 81, 20928, 71, 20928, 91, 20976, 74, 20976, 90, 21024, 78, 21024, 88, 21072, 74, 21072, 88, 21120, 69, 21168, 74, 21216, 78, 21216, 90, 21264, 74, 21264, 86, 21312, 71, 21360, 74, 21408, 78, 21408, 88, 21456, 74, 21456, 81, 21504, 69, 21552, 74, 21600, 78, 21648, 74, 21696, 71, 21744, 74, 21792, 78, 21840, 74, 21888, 71, 21888, 88, 21936, 76, 21984, 79, 21984, 90, 22032, 76, 22032, 91, 22080, 71, 22128, 76, 22176, 79, 22176, 88, 22224, 76, 22272, 69, 22272, 85, 22320, 73, 22368, 79, 22368, 86, 22416, 73, 22416, 88, 22464, 69, 22512, 73, 22560, 79, 22560, 81, 22608, 73, 22608, 81, 22656, 69, 22704, 74, 22704, 90, 22752, 78, 22800, 74, 22848, 71, 22896, 74, 22944, 78, 22992, 74, 23040, 69, 23088, 74, 23136, 78, 23184, 74, 23232, 71, 23232, 91, 23232, 95, 23280, 74, 23280, 90, 23280, 93, 23328, 78, 23328, 88, 23328, 91, 23376, 74, 23376, 88, 23376, 91, 23424, 62, 23424, 69, 23436, 90, 23436, 93, 23472, 74, 23520, 78, 23568, 62, 23568, 74, 23616, 59, 23616, 71, 23664, 74, 23712, 78, 23760, 59, 23760, 74, 23808, 62, 23808, 69, 23856, 74, 23904, 78, 23952, 62, 23952, 74, 24000, 59, 24000, 71, 24000, 91, 24000, 95, 24048, 74, 24048, 90, 24048, 93, 24096, 78, 24096, 88, 24096, 91, 24144, 59, 24144, 74, 24144, 88, 24144, 91, 24192, 62, 24192, 69, 24240, 74, 24288, 78, 24288, 90, 24288, 93, 24336, 62, 24336, 74, 24336, 86, 24336, 90, 24384, 59, 24384, 71, 24432, 74, 24480, 78, 24480, 88, 24480, 91, 24528, 59, 24528, 74, 24528, 81, 24528, 86, 24576, 62, 24576, 69, 24624, 74, 24672, 78, 24720, 62, 24720, 74, 24768, 59, 24768, 71, 24816, 74, 24864, 78, 24912, 59, 24912, 74, 24960, 64, 24960, 71, 24960, 88, 25008, 76, 25056, 79, 25056, 90, 25104, 64, 25104, 76, 25104, 91, 25152, 64, 25152, 71, 25200, 66, 25200, 76, 25248, 67, 25248, 79, 25248, 88, 25296, 76, 25344, 57, 25344, 69, 25344, 85, 25392, 73, 25440, 79, 25440, 86, 25488, 57, 25488, 73, 25488, 88, 25536, 57, 25536, 69, 25584, 59, 25584, 73, 25584, 81, 25632, 61, 25632, 79, 25632, 86, 25680, 57, 25680, 73, 25680, 88, 25728, 58, 25728, 70, 25728, 89, 25776, 74, 25776, 88, 25824, 81, 25824, 86, 25872, 70, 25872, 77, 25872, 84, 25920, 81, 25968, 77, 26016, 70, 26016, 77, 26016, 81, 26016, 81, 26064, 57, 26064, 77, 26064, 79, 26064, 82, 26112, 65, 26112, 72, 26112, 77, 26112, 81, 26112, 84, 26160, 81, 26208, 72, 26208, 77, 26208, 84, 26208, 89, 26256, 65, 26304, 60, 26304, 72, 26304, 76, 26304, 84, 26304, 88, 26352, 79, 26352, 86, 26400, 72, 26400, 76, 26400, 82, 26400, 86, 26448, 60, 26448, 81, 26448, 84, 26496, 58, 26496, 70, 26496, 74, 26496, 82, 26496, 86, 26544, 81, 26544, 82, 26544, 84, 26592, 70, 26592, 74, 26592, 81, 26592, 84, 26640, 58, 26640, 76, 26688, 65, 26688, 72, 26688, 77, 26688, 81, 26688, 84, 26736, 81, 26784, 72, 26784, 77, 26784, 79, 26784, 81, 26832, 65, 26832, 77, 26832, 82, 26880, 65, 26880, 72, 26880, 77, 26880, 77, 26880, 84, 26928, 81, 26976, 72, 26976, 77, 26976, 81, 26976, 89, 27024, 65, 27072, 60, 27072, 72, 27072, 76, 27072, 82, 27072, 91, 27120, 79, 27120, 81, 27120, 89, 27168, 72, 27168, 76, 27168, 79, 27168, 88, 27216, 60, 27216, 77, 27216, 86, 27264, 58, 27264, 70, 27264, 74, 27264, 77, 27264, 86, 27312, 79, 27312, 82, 27312, 88, 27360, 70, 27360, 74, 27360, 81, 27360, 89, 27408, 58, 27408, 76, 27456, 65, 27456, 72, 27456, 77, 27456, 81, 27456, 89, 27504, 81, 27552, 65, 27552, 72, 27552, 77, 27552, 82, 27552, 91, 27600, 60, 27600, 84, 27600, 93, 27648, 58, 27648, 70, 27648, 74, 27648, 86, 27648, 94, 27696, 79, 27696, 86, 27696, 94, 27744, 58, 27744, 70, 27744, 74, 27744, 84, 27744, 93, 27792, 79, 27792, 91, 27840, 60, 27840, 72, 27840, 76, 27840, 84, 27840, 91, 27888, 79, 27936, 60, 27936, 72, 27936, 76, 27936, 81, 27936, 89, 27984, 79, 27984, 82, 27984, 91, 28032, 65, 28032, 72, 28032, 77, 28032, 84, 28032, 93, 28080, 81, 28080, 84, 28080, 93, 28128, 64, 28128, 72, 28128, 77, 28128, 82, 28128, 91, 28176, 81, 28176, 89, 28224, 62, 28224, 74, 28224, 77, 28224, 81, 28224, 89, 28272, 81, 28320, 60, 28320, 74, 28320, 77, 28320, 79, 28320, 86, 28368, 77, 28368, 81, 28368, 84, 28416, 58, 28416, 70, 28416, 74, 28416, 77, 28416, 86, 28464, 79, 28464, 79, 28464, 89, 28512, 65, 28512, 70, 28512, 74, 28512, 81, 28512, 89, 28560, 79, 28560, 79, 28560, 88, 28608, 57, 28608, 69, 28608, 73, 28656, 79, 28656, 79, 28656, 88, 28704, 64, 28704, 69, 28704, 73, 28704, 81, 28704, 90, 28752, 79, 28752, 81, 28752, 90, 28800, 62, 28800, 69, 28848, 74, 28896, 78, 28944, 62, 28944, 74, 28992, 59, 28992, 71, 29040, 74, 29088, 78, 29088, 93, 29136, 59, 29136, 74, 29136, 93, 29184, 62, 29184, 69, 29184, 95, 29232, 74, 29232, 93, 29280, 78, 29280, 90, 29328, 62, 29328, 74, 29328, 86, 29376, 59, 29376, 71, 29424, 74, 29424, 88, 29424, 91, 29472, 78, 29472, 90, 29472, 93, 29520, 59, 29520, 74, 29520, 90, 29520, 93, 29568, 62, 29568, 69, 29616, 74, 29664, 78, 29712, 62, 29712, 74, 29760, 59, 29760, 71, 29808, 74, 29808, 93, 29856, 78, 29856, 93, 29904, 59, 29904, 74, 29904, 93, 29952, 62, 29952, 69, 29952, 95, 30000, 74, 30000, 93, 30048, 78, 30048, 90, 30096, 62, 30096, 74, 30096, 86, 30144, 59, 30144, 71, 30192, 74, 30192, 88, 30192, 91, 30240, 78, 30240, 90, 30240, 93, 30288, 59, 30288, 74, 30288, 90, 30288, 93, 30336, 62, 30336, 69, 30384, 74, 30432, 78, 30480, 62, 30480, 74, 30528, 59, 30528, 71, 30576, 74, 30576, 93, 30624, 78, 30624, 93, 30672, 59, 30672, 74, 30672, 93, 30720, 62, 30720, 69, 30720, 95, 30768, 74, 30768, 93, 30816, 78, 30816, 90, 30864, 62, 30864, 74, 30864, 86, 30912, 59, 30912, 71, 30960, 74, 30960, 88, 30960, 91, 31008, 78, 31008, 90, 31008, 93, 31056, 59, 31056, 74, 31056, 90, 31056, 93, 31104, 62, 31104, 69, 31152, 74, 31200, 78, 31248, 62, 31248, 74, 31296, 59, 31296, 71, 31344, 74, 31392, 78, 31392, 93, 31440, 59, 31440, 74, 31440, 93, 31488, 62, 31488, 69, 31488, 95, 31536, 74, 31536, 93, 31584, 78, 31584, 90, 31632, 62, 31632, 74, 31632, 86, 31680, 59, 31680, 71, 31728, 74, 31728, 88, 31728, 91, 31776, 78, 31776, 90, 31776, 93, 31824, 59, 31824, 74, 31824, 90, 31824, 93, 31872, 62, 31872, 69, 31920, 74, 31968, 78, 32016, 62, 32016, 74, 32064, 59, 32064, 71, 32112, 74, 32112, 93, 32160, 78, 32160, 93, 32208, 59, 32208, 74, 32208, 93, 32256, 62, 32256, 69, 32256, 95, 32304, 74, 32304, 93, 32352, 78, 32352, 90, 32400, 62, 32400, 74, 32400, 86, 32448, 59, 32448, 71, 32496, 74, 32496, 88, 32496, 91, 32544, 78, 32544, 90, 32544, 93, 32592, 59, 32592, 74, 32592, 90, 32592, 93, 32640, 62, 32640, 69, 32688, 74, 32736, 78, 32784, 62, 32784, 74, 32832, 59, 32832, 71, 32880, 74, 32880, 91, 32928, 78, 32928, 93, 32976, 59, 32976, 74, 32976, 93, 33024, 62, 33024, 69, 33072, 74, 33120, 78, 33168, 62, 33168, 74, 33216, 71, 33216, 71, 33264, 74, 33264, 91, 33312, 71, 33312, 78, 33312, 90, 33360, 69, 33360, 74, 33360, 90, 33791, 0 // 176 seconds * 48 * 4 - 1 };

    synth.asm

    .cdecls C, LIST, "msp430fr5739.h" .text .def set_tick .def get_tick .def synth_init .def set_note .ref wave .bss tick, 2 .bss pwm_out, 2 .bss phase_inc, 6 * 8 ; Level ; Phase increment LSW/MSW (from note table) .bss phase_acc, 4 * 8 ; Phase accumulator LSW/MSW .def phase_inc set_tick: mov R12, &tick reta get_tick: mov &tick, R12 reta synth_init: mov #0x0210, &TA0CTL ; Timer A config: SMCLK, count up mov #749, &TA0CCR0 ; Setup Timer A period for 32000 sps mov #375, &TA0CCR1 ; Setup Timer A compare mov #0x00E0, &TA0CCTL1 ; Setup Timer A reset/set output mode ; mov #phase_inc, R12 ; Clear all phase inc and accum mov #5 * 16, R14 ; Word count clr 0(R12) ; Clear word incd R12 ; Next word dec R14 ; Dec word count jne $ - 8 ; Loop until all words done... ; eint ; Enable interupts bis #0x0010, &TA0CCTL0 ; Enable PWM interupt ; reta ; ; synth_isr: ; mov &pwm_out, &TA0CCR1 ; Output sample ; push R4 ; Wavetable pointer push R5 ; Phase increment / level pointer push R6 ; Phase accumulator pointer push R8 ; Wave sample pointer / next sample push R9 ; Wave sample push R10 ; Voice mix accumulator MSW push R11 ; Voice mix accumulator LSW ; mov #wave, R4 ; Setup wavetable pointer mov #phase_inc, R5 ; Setup phase increment and level pointer mov #phase_acc, R6 ; Setup phase accumulator pointer clr R10 ; Clear voice mix clr R11 ; voice_loop: ; .loop 8 mov @R6+, &MPYS32L ; Get phase acc LSW (fraction) to multiplier mov @R6+, R8 ; Get phase acc MSW (wave table index) ; bit #0xFF00, R8 ; Test phase acc MSB mov.b R8, R8 ; Clear MSB ;jeq no_decay ; jeq $ + 22 mov @R5, &MPY ; Get level mov #0xFF00, &OP2 ; Decay factor mov R8, -2(R6) ; Update phase acc mov &RES1, 0(R5) ; Update level ;no_decay: clr &MPYS32H ; add R8, R8 ; Make word index add R4, R8 ; Add wavetable pointer mov @R8+, R9 ; Get wave sample mov @R8, R8 ; Get next wave sample sub R9, R8 ; Calc delta mov R8, &OP2L ; Multiply by delta bit #0x8000, R8 ; Sign extend delta subc R8, R8 ; inv R8 ; mov R8, &OP2H ; add &RES1, R9 ; Add interpolation to sample mov R9, &MPYS ; Multiply by voice level mov @R5+, &OP2 ; add @R5+, -4(R6) ; Update phase acc addc @R5+, -2(R6) ; add &RES0, R11 ; Update mix addc &RES1, R10 ; ; .endloop ; swpb R10 ; Use MSB of R10 mov.b R10, R10 ; sxt R10 ; Sign extend add R10, R10 ; * 2 add #375, R10 ; Bias to center of PWM range mov R10, &pwm_out ; ; dec &tick ; jc $ + 6 ; clr &tick ; ; pop R11 ; pop R10 ; pop R9 ; pop R8 ; pop R6 ; pop R5 ; pop R4 ; reti ; ; set_note: ; mov R12, R15 ; Voice * 6 add R15, R12 ; (+1 = *2) add R15, R12 ; (+1 = *3) rla R12 ; (*2 = *6) add #phase_inc, R12 ; Add phase inc pointer mov R14, 0(R12) ; Set level cmp #128, R13 ; Out of range note values are note off jhs note_off ; clr R14 ; Clear octave count tst_note: ; cmp #116, R13 ; Within note table? jge get_pi ; Yes... inc R14 ; Inc octave count add #12, R13 ; Add octave to note jmp tst_note ; Check again... get_pi: ; Get phase increment sub #116, R13 ; Adjust for first note in table rla R13 ; MIDI note * 4 rla R13 ; add #notes, R13 ; Add note table pointer mov @R13+, R15 ; Get LSW mov @R13, R13 ; Get MSW tst R14 ; Shifting required? jeq set_phase ; No... shift_phase: ; rra R13 ; Shift phase inc rrc R15 ; dec R14 ; Dec octave count jne shift_phase ; Repeat until zero... set_phase: ; mov R15, 2(R12) ; Set phase inc mov R13, 4(R12) ; reta ; Return ; note_off: ; incd SP ; Discard level clr 0(R12) ; Clear phase inc clr 2(R12) ; .if 0 ; Note: Abrupt return to zero causes poping clr 4(R12) ; Clear level add #phase_acc - phase_inc, R12 ; Phase accum pointer clr 0(R12) ; Clear phase accum clr 2(R12) ; .endif ; reta ; Return ; ; notes ; MIDI Note Frequency .long 3483828 ; 116 G#8 6644.87457275391 .long 3690988 ; 117 A8 7040.00091552734 .long 3910465 ; 118 A#8 7458.62007141113 .long 4142993 ; 119 B8 7902.13203430176 .long 4389349 ; 120 C9 8372.01881408691 .long 4650353 ; 121 C#9 8869.84443664551 .long 4926877 ; 122 D9 9397.27210998535 .long 5219845 ; 123 D#9 9956.06422424316 .long 5530233 ; 124 E9 10548.0823516846 .long 5859077 ; 125 F9 11175.3025054932 .long 6207476 ; 126 F#9 11839.8208618164 .long 6576592 ; 127 G9 12543.8537597656 ; Interrupt Vectors .sect ".int53" ; TA0CCR0 CCIFG0 .short synth_isr ; ; .end ;
  4. Like
    jim940 got a reaction from oPossum in Incase anyone wants a 14 DIP G2553   
    There was a discussion if a MSP430G2553 could survive being sliced into a 14 DIP package. And well I like a good challange. So I just had to try and see if it would die or not.
     

     

     

     
    Jim
  5. Like
    jim940 reacted to oPossum in Needs Attention. Booster Pack Stacking and other imp. issues   
    TI has set the defacto standard as male headers on the LP. Too late to change.
     
    A spec for optional mounting holes would be useful.
     
    Here is a 50 mm x 50 mm and 66.04 mm x 50.8 mm (2.6 inch x 2.0 inch) outline with proposed mounting hole locations.
     
    The headers are 1.8" apart and 0.5" from the right edge. Easy dimensions to remember and work with (unlike Arduino).

    lp_boost_outline.sch
    lp_boost_outline.brd
  6. Like
    jim940 got a reaction from oPossum in PADrINO = MSP430 with Arduino's footprint   
    But what that has, which your product wont:
     
     
    Showing off a bunch of Arduino footprints to try and validate your little project doesn't work when it is still missing the complete picture of the Arduino compatibles.
     
    A good analogy (assuming WINE didn't already exsist) is like you trying to sell 2 desktop PC's with the tower, keyboard, mouse and monitor, except your telling your customers (that would be us) that your Linux box is compatible with your competitors (Microsoft), except "Oh I'm sure you can come up with the API layer to interface your PC to all of your existing Windows software".
     
    At best its a half truth, at worst, its well snake oil.
     
    Jim
  7. Like
    jim940 got a reaction from nuetron in Incase anyone wants a 14 DIP G2553   
    Never burned a IC but had some UV erasable PROM's at one point. Still never know how spread out the die was, hence trying to cut it and seeing if it will turn out ok.
     
    Jim
  8. Like
    jim940 reacted to pine in How to solder this?   
    Ok i did it over the holidays! Filled the solder iron with all new batteries and the soldering is much better. Also applied some a little tin on the pcb as advised. The first attempt was a disaster though I tried too fast and soldered all ten points in one go, and the end result is only one point works and all others probably short circuit. My bad techniques!

    Started with another one, and this time be extra careful and tested after each solder.

    Thanks everyone!
  9. Like
    jim940 got a reaction from gordon in Incase anyone wants a 14 DIP G2553   
    There was a discussion if a MSP430G2553 could survive being sliced into a 14 DIP package. And well I like a good challange. So I just had to try and see if it would die or not.
     

     

     

     
    Jim
  10. Like
    jim940 got a reaction from oPossum in PADrINO = MSP430 with Arduino's footprint   
    Makes sense but Rick said it best ...
     
     
    Also these points are needed to truely make it work:
     
     
    This is important, because the shields come as finished PCB's, and if the lines do not match, you cannot run the shield without modifications, then why use a shield in the first place?
     
     
    If it doesn't level shift by default, there will be a lot of dead boards floating around. Even the Arduino Pro's in 3.3V have been killed over time due to this over sight.
     
     
    As Rick said, it needs a Arduino API (Wiring library) to make it work on the Arduino SketchPad otherwise all of the functions built for Arduino will not be compatible with your board. So the fact there will be shields available doesn't change much, since there are many break out boards of the same items already available that can already be used with the MSP430, and your at the same starting point due to lack of software libraries to "borrow" shield capability or not.
     
    It really depends on your demographic, but Arduino and similar development tools are not targeting programmers, electrical engineers or designers, they target the hobby market that wants to make something work and "now".
     
    For example, currently in this city, the post-secondary schools using Arduino, are in mainly programs that are not related to computer science, the largest is a Arts school that uses them in a digital arts course to make LED displays, second is architecture students at a local university, and the third is a mechanical design program at a college. The Electrical and Computer programming/science programs are all still using PIC or 8051 microcontrollers from the looks of things.
     
    Jim
  11. Like
    jim940 reacted to RobG in Using 3 wires to control parallel LCD display   
    I have seen this done other ways, but I didn't want to deal with 7 pins, or 4 bits, etc., so I did it my way.
    You send 8 bits to shift register, then set data out to whatever RS should be, and finally pulse E, that simple.
    I will add my code later, once I clean it up.
    BTW, if you are interested, the display is LMB162 and was purchased from ebay for $7.99 with free S/H to US of A (it took a week to get to NC.)
    It requires 3.3V Vcc with 5V BL, that's why I like it (well, I don't like the fact that I need separate power for BL.)
     


     

     
    My next step is to reduce number of required pins to 2 by adding missing pulse detector (555 I think will do well here.)

  12. Like
    jim940 reacted to RobG in Using 3 wires to control parallel LCD display   
    I was going to do write a little program to convert decimal/hex/bin to dec/hex/bin, but then I realized my keypad doesn't have E or F.
    I guess I could allow just dec and bin input and hex as output only, but for now, here's a code to input numbers and A-D. * clears display, # switches between rows.
     


     

    #include "msp430g2231.h" #define sendData(data) send(data, 1) #define sendInstruction(data) send(data, 0) #define initDisplay() sendInstruction(0x3C); sendInstruction(0x0C); clearDisplay(); sendInstruction(0x06) #define clearDisplay() sendInstruction(0x01); _delay_cycles(2000) #define DATAPIN BIT6 #define CLOCKPIN BIT5 #define ENABLEPIN BIT4 #define BIT0_3 0x0F const char charMap[16] = { 0x31,0x32,0x33,0x41,0x34,0x35,0x36,0x42,0x37,0x38,0x39,0x43,0x00,0x30,0x00,0x44 }; void send(char data, char registerSelect); void sendDataArray(char data[], char length); char charIndex = 0; char bitCounter = 0; char line = 0; int keypadPrevState = 0; int keypadCurrState = 0; int keypadPress = 0; void main(void) { WDTCTL = WDTPW + WDTHOLD; BCSCTL1 = CALBC1_1MHZ; DCOCTL = CALDCO_1MHZ; _delay_cycles(100000); P1OUT &= ~(CLOCKPIN + DATAPIN); P1OUT |= ENABLEPIN; P1DIR |= ENABLEPIN + CLOCKPIN + DATAPIN; initDisplay(); P1REN |= BIT0_3; P1OUT |= BIT0_3; CCTL0 = CCIE; CCR0 = 6250; TACTL = TASSEL_2 + MC_1 + ID_3; _bis_SR_register(LPM0_bits + GIE); } // Timer A0 interrupt service routine #pragma vector = TIMERA0_VECTOR __interrupt void Timer_A (void) { keypadCurrState = 0; bitCounter = 0; P1OUT |= DATAPIN; while(bitCounter < 4) { P1OUT |= CLOCKPIN; P1OUT &= ~CLOCKPIN; bitCounter++; } bitCounter = 0; while(bitCounter < 4) { (bitCounter == 0) ? (P1OUT &= ~DATAPIN) : (P1OUT |= DATAPIN); P1OUT |= CLOCKPIN; P1OUT &= ~CLOCKPIN; bitCounter++; keypadCurrState <<= 4; keypadCurrState |= (0x000F & P1IN); } keypadPress = keypadCurrState ^ keypadPrevState; keypadPress &= ~keypadCurrState; keypadPrevState = keypadCurrState; if(keypadPress) { if(keypadPress & BITC) { clearDisplay(); line = 0; } else if(keypadPress & BITE) { sendInstruction(line ? 0x80 : 0xC0); line ^= 1; } else { char bit = 0; while(bit < 16) { if(keypadPress & BIT0) { sendData(charMap[bit]); } keypadPress >>= 1; bit++; } } } } void sendDataArray(char data[], char length) { charIndex = 0; while(charIndex < length) { sendData(data[charIndex]); charIndex++; } } void send(char data, char registerSelect) { bitCounter = 0; while(bitCounter < 8) { (data & BIT7) ? (P1OUT |= DATAPIN) : (P1OUT &= ~DATAPIN); data <<= 1; P1OUT |= CLOCKPIN; P1OUT &= ~CLOCKPIN; bitCounter++; } registerSelect ? (P1OUT |= DATAPIN) : (P1OUT &= ~DATAPIN); P1OUT &= ~ENABLEPIN; P1OUT |= ENABLEPIN; }
  13. Like
    jim940 got a reaction from gordon in Best place to start for a noob AVR user?   
    http://www.stanford.edu/class/ee281/index.html
     
    http://www.atmel.com/dyn/resources/prod ... novice.pdf
     
    http://hlt.media.mit.edu/wiki/pmwiki.ph ... n.HomePage
     
    http://ocw.mit.edu/courses/media-arts-a ... ut06_avr1/
     
    http://itp.nyu.edu/physcomp/Tutorials/Tutorials
     
    http://www.ai.uga.edu/mc/microcontrolle ... tebook.pdf
     
    http://www.ccs.neu.edu/course/cs4610/do ... ibrary.pdf
     
    Jim
  14. Like
    jim940 got a reaction from bluehash in Best place to start for a noob AVR user?   
    http://www.stanford.edu/class/ee281/index.html
     
    http://www.atmel.com/dyn/resources/prod ... novice.pdf
     
    http://hlt.media.mit.edu/wiki/pmwiki.ph ... n.HomePage
     
    http://ocw.mit.edu/courses/media-arts-a ... ut06_avr1/
     
    http://itp.nyu.edu/physcomp/Tutorials/Tutorials
     
    http://www.ai.uga.edu/mc/microcontrolle ... tebook.pdf
     
    http://www.ccs.neu.edu/course/cs4610/do ... ibrary.pdf
     
    Jim
  15. Like
    jim940 reacted to oPossum in Characterize DCO without 32.768 kHz xtal   
    This is a method to measure the DCO frequency by timing serial data.
     
    The ASCII character 'x' has two falling edges that are 8 bit times apart. There are also two 4 bit times from falling to rising and rising to falling. At 9600 bps the time between edges will be 833.33 us. Counting the number of DCO clock ticks that occur between the falling clock edges will allow the DCO frequency to be calculated.
     

     
    The stored DCO calibrations are shown and then frequency measurement begins. Each time the 'x' character is sent a line of info will be displayed.
     
    RSEL - Range SELect - the lower four bits of BCSCTL1
    DCO - All eight bits of DCOCTL
    T - The count of DCO clock pulses
    F - Calculated DCO frequency in kHz
     

     
    The accuracy of the measurement is dependent on the accuracy of the serial data. Using the serial port of the Launchpad gave readings about 0.2% low. The SMCLK is output on P1.4 so a frequency counter can be used to determine how well this works.
     

     
    Timer A capture is used to accurately count the DCO clock ticks between falling edges.
     
    Code excerpt

    for(; { // --- Measure duration of 8 bits TACCTL1 &= ~CCIFG; // Clear capture flag // Wait for falling edge, check for S2 press while(!(TACCTL1 & CCIFG)) if(!(P1IN & BIT3)) { s2(); continue; } start = TACCR1; // Save captured start time // TACCTL1 &= ~CCIFG; // Clear capture flag while(!(TACCTL1 & CCIFG)); // Wait for falling edge stop = TACCR1; // Save captured stop time duration = stop - start; // Calculate duration of 8 bits // Calculate frequency freq = (unsigned)(((unsigned long)duration * 39322) >> 15); // Setup serial using measured bit duration serial_setup(BIT1, BIT2, duration >> 3); // Show info printf("RSEL: %u DCO: %u T: %u F: %u kHz\r\n", (unsigned)(BCSCTL1 & 0x0F), (unsigned)DCOCTL, duration, freq); // Increment DCO ++DCOCTL; }
    dco_serial.zip
  16. Like
    jim940 got a reaction from GeekDoc in Best place to start for a noob AVR user?   
    http://www.stanford.edu/class/ee281/index.html
     
    http://www.atmel.com/dyn/resources/prod ... novice.pdf
     
    http://hlt.media.mit.edu/wiki/pmwiki.ph ... n.HomePage
     
    http://ocw.mit.edu/courses/media-arts-a ... ut06_avr1/
     
    http://itp.nyu.edu/physcomp/Tutorials/Tutorials
     
    http://www.ai.uga.edu/mc/microcontrolle ... tebook.pdf
     
    http://www.ccs.neu.edu/course/cs4610/do ... ibrary.pdf
     
    Jim
  17. Like
    jim940 got a reaction from pine in TCA7408-5405EVM   
    https://estore.ti.com/TCA7408-5405EVM-E ... P2771.aspx
     
  18. Like
    jim940 reacted to oPossum in TCA7408-5405EVM   
    TCA5405 Low Voltage 5-Bit Self-Timed, Single-Wire Output Expander (pdf)
    TCA7408 Low-voltage 8-bit I2C I/O Expander with Interrupt Output Reset I/O Direction Registers (pdf)
    Note: Only available as uQFN and BGA package
     
    TPL0401A-10 128 Taps Digital Potentiometer with I2C Interface (pdf)
    TLC59108 8-Bit Fast Mode Plus (FM+) I2C Bus Constant-Current LED Sink Driver (pdf)
  19. Like
    jim940 got a reaction from bluehash in TCA7408-5405EVM   
    https://estore.ti.com/TCA7408-5405EVM-E ... P2771.aspx
     
  20. Like
    jim940 got a reaction from oPossum in TCA7408-5405EVM   
    https://estore.ti.com/TCA7408-5405EVM-E ... P2771.aspx
     
  21. Like
    jim940 reacted to gwdeveloper in Anaren TI CC110L RF AIR Booster Pack   
    From comparing the datasheets and register addresses, the CC110L and CC1101 are pretty similar. You should be able to run the SimpliciTI wireless stack with no issues. It compiles fine in CCS.
     
    There is a Launchpad/MSP430G2553 BSP for SimpliciTI at http://www.43oh.com/forum/viewtopic.php?f=8&t=1953. If you follow that tutorial, just change the predefined symbol from MRFI_CC2500 to MRFI_CC1101.
     
    For a very basic hardware init code, there is TI's CC1100-2500 HAL that would only need minor changes to run on the Launchpad. It runs great on the Fraunchpad, Ez430-rf2500t and EXP430F5529 boards.
     
    My AIR Booster packs should be arriving today. I'll post a success or fail for CCS this evening. It would be sweet to have the Chronos communicating with the Launchpad.
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