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Diff: DeviceSequencer.c
- Revision:
- 198:78dd6d14d108
- Parent:
- 197:7a05523bf588
--- a/DeviceSequencer.c Wed Oct 19 10:55:05 2016 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,201 +0,0 @@ -#include "Device.h" -extern Device device; - -void InitSequencerDefaultSettings(void){ - device.sequencer.sampler.settings.enabled = 1; - device.sequencer.sampler.settings.amplitude = 0x1e0000; //30V - device.sequencer.sampler.settings.position[0] = 0; //starting output sample position - device.sequencer.sampler.settings.position[1] = 16; //starting reference (delayed) sample position - device.sequencer.sampler.settings.sequence[0] = 0; - device.sequencer.sampler.settings.sequence[1] = 6424; - device.sequencer.sampler.settings.sequence[2] = 12785; - device.sequencer.sampler.settings.sequence[3] = 19024; - device.sequencer.sampler.settings.sequence[4] = 25080; - device.sequencer.sampler.settings.sequence[5] = 30893; - device.sequencer.sampler.settings.sequence[6] = 36410; - device.sequencer.sampler.settings.sequence[7] = 41576; - device.sequencer.sampler.settings.sequence[8] = 46341; - device.sequencer.sampler.settings.sequence[9] = 50660; - device.sequencer.sampler.settings.sequence[10] = 54491; - device.sequencer.sampler.settings.sequence[11] = 57798; - device.sequencer.sampler.settings.sequence[12] = 60547; - device.sequencer.sampler.settings.sequence[13] = 62714; - device.sequencer.sampler.settings.sequence[14] = 64277; - device.sequencer.sampler.settings.sequence[15] = 65220; - device.sequencer.sampler.settings.sequence[16] = 65536; - device.sequencer.sampler.settings.sequence[17] = 65220; - device.sequencer.sampler.settings.sequence[18] = 64277; - device.sequencer.sampler.settings.sequence[19] = 62714; - device.sequencer.sampler.settings.sequence[20] = 60547; - device.sequencer.sampler.settings.sequence[21] = 57798; - device.sequencer.sampler.settings.sequence[22] = 54491; - device.sequencer.sampler.settings.sequence[23] = 50660; - device.sequencer.sampler.settings.sequence[24] = 46341; - device.sequencer.sampler.settings.sequence[25] = 41576; - device.sequencer.sampler.settings.sequence[26] = 36410; - device.sequencer.sampler.settings.sequence[27] = 30893; - device.sequencer.sampler.settings.sequence[28] = 25080; - device.sequencer.sampler.settings.sequence[29] = 19024; - device.sequencer.sampler.settings.sequence[30] = 12785; - device.sequencer.sampler.settings.sequence[31] = 6424; - device.sequencer.sampler.settings.sequence[32] = 0; - device.sequencer.sampler.settings.sequence[33] = -6424; - device.sequencer.sampler.settings.sequence[34] = -12785; - device.sequencer.sampler.settings.sequence[35] = -19024; - device.sequencer.sampler.settings.sequence[36] = -25080; - device.sequencer.sampler.settings.sequence[37] = -30893; - device.sequencer.sampler.settings.sequence[38] = -36410; - device.sequencer.sampler.settings.sequence[39] = -41576; - device.sequencer.sampler.settings.sequence[40] = -46341; - device.sequencer.sampler.settings.sequence[41] = -50660; - device.sequencer.sampler.settings.sequence[42] = -54491; - device.sequencer.sampler.settings.sequence[43] = -57798; - device.sequencer.sampler.settings.sequence[44] = -60547; - device.sequencer.sampler.settings.sequence[45] = -62714; - device.sequencer.sampler.settings.sequence[46] = -64277; - device.sequencer.sampler.settings.sequence[47] = -65220; - device.sequencer.sampler.settings.sequence[48] = -65536; - device.sequencer.sampler.settings.sequence[49] = -65220; - device.sequencer.sampler.settings.sequence[50] = -64277; - device.sequencer.sampler.settings.sequence[51] = -62714; - device.sequencer.sampler.settings.sequence[52] = -60547; - device.sequencer.sampler.settings.sequence[53] = -57798; - device.sequencer.sampler.settings.sequence[54] = -54491; - device.sequencer.sampler.settings.sequence[55] = -50660; - device.sequencer.sampler.settings.sequence[56] = -46341; - device.sequencer.sampler.settings.sequence[57] = -41576; - device.sequencer.sampler.settings.sequence[58] = -36410; - device.sequencer.sampler.settings.sequence[59] = -30893; - device.sequencer.sampler.settings.sequence[60] = -25080; - device.sequencer.sampler.settings.sequence[61] = -19024; - device.sequencer.sampler.settings.sequence[62] = -12785; - device.sequencer.sampler.settings.sequence[63] = -6424; - - device.sequencer.output.analog.settings.enabled = 1; - device.sequencer.output.logic.settings.enabled = 0; - device.sequencer.output.analog.settings.transfer.points = 16; - device.sequencer.output.analog.settings.transfer.code[0] = 0x0; - device.sequencer.output.analog.settings.transfer.voltage[0] = -0x1e0000; //-30.0V - device.sequencer.output.analog.settings.transfer.code[1] = 0x1100; - device.sequencer.output.analog.settings.transfer.voltage[1] = -0x1a0000; //-26.0V - device.sequencer.output.analog.settings.transfer.code[2] = 0x2200; - device.sequencer.output.analog.settings.transfer.voltage[2] = -0x160000; //-22.0V - device.sequencer.output.analog.settings.transfer.code[3] = 0x3300; - device.sequencer.output.analog.settings.transfer.voltage[3] = -0x120000; //-18.0V - device.sequencer.output.analog.settings.transfer.code[4] = 0x4440; - device.sequencer.output.analog.settings.transfer.voltage[4] = -0xe0000; //-14.0V - device.sequencer.output.analog.settings.transfer.code[5] = 0x5540; - device.sequencer.output.analog.settings.transfer.voltage[5] = -0xa0000; //-10.0V - device.sequencer.output.analog.settings.transfer.code[6] = 0x6640; - device.sequencer.output.analog.settings.transfer.voltage[6] = -0x60000; //-6.0V - device.sequencer.output.analog.settings.transfer.code[7] = 0x7740; - device.sequencer.output.analog.settings.transfer.voltage[7] = -0x20000; //-2.0V - device.sequencer.output.analog.settings.transfer.code[8] = 0x8880; - device.sequencer.output.analog.settings.transfer.voltage[8] = 0x20000; //2.0V - device.sequencer.output.analog.settings.transfer.code[9] = 0x9980; - device.sequencer.output.analog.settings.transfer.voltage[9] = 0x60000; //6.0V - device.sequencer.output.analog.settings.transfer.code[10] = 0xaa80; - device.sequencer.output.analog.settings.transfer.voltage[10] = 0xa0000; //10.0V - device.sequencer.output.analog.settings.transfer.code[11] = 0xbb80; - device.sequencer.output.analog.settings.transfer.voltage[11] = 0xe0000; //14.0V - device.sequencer.output.analog.settings.transfer.code[12] = 0xccc0; - device.sequencer.output.analog.settings.transfer.voltage[12] = 0x120000; //18.0V - device.sequencer.output.analog.settings.transfer.code[13] = 0xddc0; - device.sequencer.output.analog.settings.transfer.voltage[13] = 0x160000; //22.0V - device.sequencer.output.analog.settings.transfer.code[14] = 0xeec0; - device.sequencer.output.analog.settings.transfer.voltage[14] = 0x1a0000; //26.0V - device.sequencer.output.analog.settings.transfer.code[15] = 0xffc0; - device.sequencer.output.analog.settings.transfer.voltage[15] = 0x1e0000; //30.0V -} - -void InitSequencerState(void){ - device.sequencer.sampler.state.enabled = device.sequencer.sampler.settings.enabled; - device.sequencer.sampler.state.amplitude = device.sequencer.sampler.settings.amplitude; - device.sequencer.sampler.state.position[0] = device.sequencer.sampler.settings.position[0]; //starting output sample position - device.sequencer.sampler.state.position[1] = device.sequencer.sampler.settings.position[1]; //starting reference (delayed) sample position - device.sequencer.sampler.state.sample[0] = device.sequencer.sampler.settings.sequence[device.sequencer.sampler.state.position[0]]; - device.sequencer.sampler.state.sample[1] = device.sequencer.sampler.settings.sequence[device.sequencer.sampler.state.position[1]]; - device.sequencer.sampler.state.voltage = device.sequencer.sampler.state.amplitude * device.sequencer.sampler.state.sample[0]; - - device.sequencer.output.analog.state.enabled = device.sequencer.output.analog.settings.enabled; - device.sequencer.output.logic.state.enabled = device.sequencer.output.logic.settings.enabled; -} - -void DeviceStartSequencer(void){ - if (device.sequencer.output.logic.state.enabled) { - //Setup P0.26: GPIO output - LPC_PINCON->PINSEL1 &= ~(3<<20); //P0.26 is GPIO pin (write 00b in bits 21:20 of PINSEL1) - LPC_PINCON->PINMODE1 |= (3<<20); //P0.26 pull-down resistor on (write 11b in bits 21:20 of PINMODE0) - LPC_GPIO0->FIODIR |= (1<<26); //P0.26 is output (write 1b in bit 4 of FIODIR) - LPC_GPIO0->FIOSET |= (1<<26); //off - } else if (device.sequencer.output.analog.state.enabled) { - LPC_SC->PCLKSEL0 &= ~(0x3<<22); //00b CLK/4; 01b CLK; 10b CLK/2; 11b CLK/8 - //Pin 0.26 function select AOUT (10b) - LPC_PINCON->PINSEL1 &= ~(3<<20); - LPC_PINCON->PINSEL1 |= 0x2 << 20; //P0.26 is AOUT pin (write 10b in bits 21:20 of PINSEL1) - } -} - -int32_t sequencerInterpolate(int32_t a,int32_t a1,int32_t a2,int32_t b1,int32_t b2) { - int32_t ma, mb; - while (1) { - if (a1 == a) return b1; - if (a2 == a) return b2; - - ma = (a1 + a2) >> 1; - mb = (b1 + b2) >> 1; - - if (a < ma) { - if (a2 == ma) return mb; - if (b1 == mb) return mb; - a2 = ma; b2 = mb; - } else if (a > ma) { - if (a1 == ma) return mb; - if (b2 == mb) return mb; - a1 = ma; b1 = mb; - } else return mb; - } -} - -int32_t sequencerOutput(uint32_t voltage) { - int32_t v1, v2; - for (uint8_t i = 1; i < device.sequencer.output.analog.settings.transfer.points; i++) { - v1 = device.sequencer.output.analog.settings.transfer.voltage[i - 1]; - if (voltage < v1) { - return device.sequencer.output.analog.settings.transfer.code[i - 1]; - } - - v2 = device.sequencer.output.analog.settings.transfer.voltage[i]; - if (voltage < v2) { - int32_t c1 = device.sequencer.output.analog.settings.transfer.code[i - 1]; - int32_t c2 = device.sequencer.output.analog.settings.transfer.code[i]; - return sequencerInterpolate(voltage, v1, v2, c1, c2); - } - } - return device.sequencer.output.analog.settings.transfer.code[device.sequencer.output.analog.settings.transfer.points - 1]; -} - -void sequencerProcess(void){ - //Sample - device.sequencer.sampler.state.sample[0] = device.sequencer.sampler.settings.sequence[device.sequencer.sampler.state.position[0]]; - device.sequencer.sampler.state.sample[1] = device.sequencer.sampler.settings.sequence[device.sequencer.sampler.state.position[1]]; - device.sequencer.sampler.state.voltage = device.sequencer.sampler.state.amplitude * device.sequencer.sampler.state.sample[0]; - //Set output - if (device.sequencer.output.logic.state.enabled) { - if (device.sequencer.sampler.state.sample[0] > 0) { - LPC_GPIO0->FIOCLR |= (1<<26); //1 - } else { - LPC_GPIO0->FIOSET |= (1<<26); //0 - } - } else if (device.sequencer.output.analog.state.enabled) { - device.sequencer.output.analog.state.voltage = device.sequencer.sampler.state.voltage; - //Warning! bit 16 - 0/1: Update rate 1MHz/400kHz; bits 15...6 - code; bits 5...0 - reserved, write 000000 - LPC_DAC->DACR = sequencerOutput(device.sequencer.output.analog.state.voltage); - //LPC_DAC->CR = sequencerOutput(device.sequencer.output.analog.state.voltage); - } - //Process sequencer state - device.sequencer.sampler.state.position[0]++; - if (device.sequencer.sampler.state.position[0] == 64) device.sequencer.sampler.state.position[0] = 0; - device.sequencer.sampler.state.position[1]++; - if (device.sequencer.sampler.state.position[1] == 64) device.sequencer.sampler.state.position[1] = 0; -} \ No newline at end of file