mirror of
https://github.com/jonathanhogg/scopething
synced 2025-07-14 03:02:09 +01:00
Optimised register writing
This commit is contained in:
Jonathan Hogg
370
vm.py
370
vm.py
@ -23,75 +23,130 @@ class VirtualMachine:
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return False
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Registers = {
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"vrTriggerLogic": (1, 0x05, '''Trigger Logic, one bit per channel (0 => Low, 1 => High)''', 'uint'),
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"vrTriggerMask": (1, 0x06, '''Trigger Mask, one bit per channel (0 => Don’t Care, 1 => Active)''', 'uint'),
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"vrSpockOption": (1, 0x07, '''Spock Option Register (see bit definition table for details)''', 'uint'),
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"vrSampleAddress": (3, 0x08, '''Sample address (write) 24 bit''', 'uint'),
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"vrSampleCounter": (3, 0x0b, '''Sample address (read) 24 bit''', 'uint'),
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"vrTriggerIntro": (2, 0x32, '''Edge trigger intro filter counter (samples/2)''', 'uint'),
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"vrTriggerOutro": (2, 0x34, '''Edge trigger outro filter counter (samples/2)''', 'uint'),
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"vrTriggerValue": (2, 0x44, '''Digital (comparator) trigger (signed)''', 'int'),
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"vrTriggerTime": (4, 0x40, '''Stopwatch trigger time (ticks)''', 'uint'),
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"vrClockTicks": (2, 0x2e, '''Master Sample (clock) period (ticks)''', 'uint'),
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"vrClockScale": (2, 0x14, '''Clock divide by N (low byte)''', 'uint'),
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"vrTraceOption": (1, 0x20, '''Trace Mode Option bits''', 'uint'),
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"vrTraceMode": (1, 0x21, '''Trace Mode (see Trace Mode Table)''', 'uint'),
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"vrTraceIntro": (2, 0x26, '''Pre-trigger capture count (samples)''', 'uint'),
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"vrTraceDelay": (4, 0x22, '''Delay period (uS)''', 'uint'),
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"vrTraceOutro": (2, 0x2a, '''Post-trigger capture count (samples)''', 'uint'),
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"vrTimeout": (2, 0x2c, '''Auto trace timeout (auto-ticks)''', 'uint'),
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"vrPrelude": (2, 0x3a, '''Buffer prefill value''', 'uint'),
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"vrBufferMode": (1, 0x31, '''Buffer mode''', 'uint'),
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"vrDumpMode": (1, 0x1e, '''Dump mode''', 'uint'),
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"vrDumpChan": (1, 0x30, '''Dump (buffer) Channel (0..127,128..254,255)''', 'uint'),
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"vrDumpSend": (2, 0x18, '''Dump send (samples)''', 'uint'),
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"vrDumpSkip": (2, 0x1a, '''Dump skip (samples)''', 'uint'),
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"vrDumpCount": (2, 0x1c, '''Dump size (samples)''', 'uint'),
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"vrDumpRepeat": (2, 0x16, '''Dump repeat (iterations)''', 'uint'),
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"vrStreamIdent": (1, 0x36, '''Stream data token''', 'uint'),
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"vrStampIdent": (1, 0x3c, '''Timestamp token''', 'uint'),
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"vrAnalogEnable": (1, 0x37, '''Analog channel enable (bitmap)''', 'uint'),
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"vrDigitalEnable": (1, 0x38, '''Digital channel enable (bitmap)''', 'uint'),
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"vrSnoopEnable": (1, 0x39, '''Frequency (snoop) channel enable (bitmap)''', 'uint'),
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"vpCmd": (1, 0x46, '''Command Vector''', 'uint'),
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"vpMode": (1, 0x47, '''Operation Mode (per command)''', 'uint'),
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"vpOption": (2, 0x48, '''Command Option (bits fields per command)''', 'uint'),
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"vpSize": (2, 0x4a, '''Operation (unit/block) size''', 'uint'),
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"vpIndex": (2, 0x4c, '''Operation index (eg, P Memory Page)''', 'uint'),
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"vpAddress": (2, 0x4e, '''General purpose address''', 'uint'),
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"vpClock": (2, 0x50, '''Sample (clock) period (ticks)''', 'uint'),
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"vpModulo": (2, 0x52, '''Modulo Size (generic)''', 'uint'),
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"vpLevel": (2, 0x54, '''Output (analog) attenuation (unsigned)''', 'uint'),
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"vpOffset": (2, 0x56, '''Output (analog) offset (signed)''', 'int'),
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"vpMask": (2, 0x58, '''Translate source modulo mask''', 'uint'),
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"vpRatio": (4, 0x5a, '''Translate command ratio (phase step)''', 'uint'),
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"vpMark": (2, 0x5e, '''Mark count/phase (ticks/step)''', 'uint'),
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"vpSpace": (2, 0x60, '''Space count/phase (ticks/step)''', 'uint'),
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"vpRise": (2, 0x82, '''Rising edge clock (channel 1) phase (ticks)''', 'uint'),
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"vpFall": (2, 0x84, '''Falling edge clock (channel 1) phase (ticks)''', 'uint'),
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"vpControl": (1, 0x86, '''Clock Control Register (channel 1)''', 'uint'),
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"vpRise2": (2, 0x88, '''Rising edge clock (channel 2) phase (ticks)''', 'uint'),
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"vpFall2": (2, 0x8a, '''Falling edge clock (channel 2) phase (ticks)''', 'uint'),
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"vpControl2": (1, 0x8c, '''Clock Control Register (channel 2)''', 'uint'),
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"vpRise3": (2, 0x8e, '''Rising edge clock (channel 3) phase (ticks)''', 'uint'),
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"vpFall3": (2, 0x90, '''Falling edge clock (channel 3) phase (ticks)''', 'uint'),
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"vpControl3": (1, 0x92, '''Clock Control Register (channel 3)''', 'uint'),
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"vrEepromData": (1, 0x10, '''EE Data Register''', 'uint'),
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"vrEepromAddress": (1, 0x11, '''EE Address Register''', 'uint'),
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"vrConverterLo": (2, 0x64, '''VRB ADC Range Bottom (D Trace Mode)''', 'uint'),
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"vrConverterHi": (2, 0x66, '''VRB ADC Range Top (D Trace Mode)''', 'uint'),
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"vrTriggerLevel": (2, 0x68, '''Trigger Level (comparator, unsigned)''', 'uint'),
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"vrLogicControl": (1, 0x74, '''Logic Control''', 'uint'),
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"vrRest": (2, 0x78, '''DAC (rest) level''', 'uint'),
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"vrKitchenSinkA": (1, 0x7b, '''Kitchen Sink Register A''', 'uint'),
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"vrKitchenSinkB": (1, 0x7c, '''Kitchen Sink Register B''', 'uint'),
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"vrTriggerLogic": (0x05, 'U8', "Trigger Logic, one bit per channel (0 => Low, 1 => High)"),
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"vrTriggerMask": (0x06, 'U8', "Trigger Mask, one bit per channel (0 => Don’t Care, 1 => Active)"),
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"vrSpockOption": (0x07, 'U8', "Spock Option Register (see bit definition table for details)"),
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"vrSampleAddress": (0x08, 'U24', "Sample address (write) 24 bit"),
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"vrSampleCounter": (0x0b, 'U24', "Sample address (read) 24 bit"),
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"vrTriggerIntro": (0x32, 'U24', "Edge trigger intro filter counter (samples/2)"),
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"vrTriggerOutro": (0x34, 'U16', "Edge trigger outro filter counter (samples/2)"),
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"vrTriggerValue": (0x44, 'S16', "Digital (comparator) trigger (signed)"),
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"vrTriggerTime": (0x40, 'U32', "Stopwatch trigger time (ticks)"),
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"vrClockTicks": (0x2e, 'U16', "Master Sample (clock) period (ticks)"),
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"vrClockScale": (0x14, 'U16', "Clock divide by N (low byte)"),
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"vrTraceOption": (0x20, 'U8', "Trace Mode Option bits"),
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"vrTraceMode": (0x21, 'U8', "Trace Mode (see Trace Mode Table)"),
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"vrTraceIntro": (0x26, 'U16', "Pre-trigger capture count (samples)"),
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"vrTraceDelay": (0x22, 'U32', "Delay period (uS)"),
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"vrTraceOutro": (0x2a, 'U16', "Post-trigger capture count (samples)"),
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"vrTimeout": (0x2c, 'U16', "Auto trace timeout (auto-ticks)"),
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"vrPrelude": (0x3a, 'U16', "Buffer prefill value"),
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"vrBufferMode": (0x31, 'U8', "Buffer mode"),
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"vrDumpMode": (0x1e, 'U8', "Dump mode"),
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"vrDumpChan": (0x30, 'U8', "Dump (buffer) Channel (0..127,128..254,255)"),
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"vrDumpSend": (0x18, 'U16', "Dump send (samples)"),
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"vrDumpSkip": (0x1a, 'U16', "Dump skip (samples)"),
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"vrDumpCount": (0x1c, 'U16', "Dump size (samples)"),
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"vrDumpRepeat": (0x16, 'U16', "Dump repeat (iterations)"),
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"vrStreamIdent": (0x36, 'U8', "Stream data token"),
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"vrStampIdent": (0x3c, 'U8', "Timestamp token"),
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"vrAnalogEnable": (0x37, 'U8', "Analog channel enable (bitmap)"),
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"vrDigitalEnable": (0x38, 'U8', "Digital channel enable (bitmap)"),
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"vrSnoopEnable": (0x39, 'U8', "Frequency (snoop) channel enable (bitmap)"),
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"vpCmd": (0x46, 'U8', "Command Vector"),
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"vpMode": (0x47, 'U8', "Operation Mode (per command)"),
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"vpOption": (0x48, 'U16', "Command Option (bits fields per command)"),
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"vpSize": (0x4a, 'U16', "Operation (unit/block) size"),
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"vpIndex": (0x4c, 'U16', "Operation index (eg, P Memory Page)"),
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"vpAddress": (0x4e, 'U16', "General purpose address"),
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"vpClock": (0x50, 'U16', "Sample (clock) period (ticks)"),
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"vpModulo": (0x52, 'U16', "Modulo Size (generic)"),
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"vpLevel": (0x54, 'U0.16', "Output (analog) attenuation (unsigned)"),
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"vpOffset": (0x56, 'S1.15', "Output (analog) offset (signed)"),
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"vpMask": (0x58, 'U16', "Translate source modulo mask"),
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"vpRatio": (0x5a, 'U16.16', "Translate command ratio (phase step)"),
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"vpMark": (0x5e, 'U16', "Mark count/phase (ticks/step)"),
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"vpSpace": (0x60, 'U16', "Space count/phase (ticks/step)"),
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"vpRise": (0x82, 'U16', "Rising edge clock (channel 1) phase (ticks)"),
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"vpFall": (0x84, 'U16', "Falling edge clock (channel 1) phase (ticks)"),
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"vpControl": (0x86, 'U8', "Clock Control Register (channel 1)"),
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"vpRise2": (0x88, 'U16', "Rising edge clock (channel 2) phase (ticks)"),
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"vpFall2": (0x8a, 'U16', "Falling edge clock (channel 2) phase (ticks)"),
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"vpControl2": (0x8c, 'U8', "Clock Control Register (channel 2)"),
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"vpRise3": (0x8e, 'U16', "Rising edge clock (channel 3) phase (ticks)"),
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"vpFall3": (0x90, 'U16', "Falling edge clock (channel 3) phase (ticks)"),
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"vpControl3": (0x92, 'U8', "Clock Control Register (channel 3)"),
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"vrEepromData": (0x10, 'U8', "EE Data Register"),
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"vrEepromAddress": (0x11, 'U8', "EE Address Register"),
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"vrConverterLo": (0x64, 'U16', "VRB ADC Range Bottom (D Trace Mode)"),
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"vrConverterHi": (0x66, 'U16', "VRB ADC Range Top (D Trace Mode)"),
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"vrTriggerLevel": (0x68, 'U16', "Trigger Level (comparator, unsigned)"),
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"vrLogicControl": (0x74, 'U8', "Logic Control"),
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"vrRest": (0x78, 'U16', "DAC (rest) level"),
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"vrKitchenSinkA": (0x7b, 'U8', "Kitchen Sink Register A"),
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"vrKitchenSinkB": (0x7c, 'U8', "Kitchen Sink Register B"),
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"vpMap0": (0x94, 'U8', "Peripheral Pin Select Channel 0"),
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"vpMap1": (0x95, 'U8', "Peripheral Pin Select Channel 1"),
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"vpMap2": (0x96, 'U8', "Peripheral Pin Select Channel 2"),
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"vpMap3": (0x97, 'U8', "Peripheral Pin Select Channel 3"),
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"vpMap4": (0x98, 'U8', "Peripheral Pin Select Channel 4"),
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"vpMap5": (0x99, 'U8', "Peripheral Pin Select Channel 5"),
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"vpMap6": (0x9a, 'U8', "Peripheral Pin Select Channel 6"),
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"vpMap7": (0x9b, 'U8', "Peripheral Pin Select Channel 7"),
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"vrMasterClockN": (0xf7, 'U8', "PLL prescale (DIV N)"),
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"vrMasterClockM": (0xf8, 'U16', "PLL multiplier (MUL M)"),
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"vrLedLevelRED": (0xfa, 'U8', "Red LED Intensity (VM10 only)"),
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"vrLedLevelGRN": (0xfb, 'U8', "Green LED Intensity (VM10 only)"),
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"vrLedLevelYEL": (0xfc, 'U8', "Yellow LED Intensity (VM10 only)"),
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"vcBaudHost": (0xfe, 'U16', "baud rate (host side)"),
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}
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TraceModes = {
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"tmAnalog": 0,
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"tmAnalogFast": 4,
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"tmAnalogShot": 11,
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"tmMixed": 1,
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"tmMixedFast": 5,
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"tmMixedShot": 12,
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"tmLogic": 14,
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"tmLogicFast": 15,
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"tmLogicShot": 13,
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"tmAnalogChop": 2,
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"tmAnalogFastChop": 6,
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"tmAnalogShotChop": 16,
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"tmMixedChop": 3,
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"tmMixedFastChop": 7,
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"tmMixedShotChop": 17,
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"tmMacro": 18,
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"tmMacroChop": 19,
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}
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BufferModes = {
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"bmSingle": 0,
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"bmChop": 1,
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"bmDual": 2,
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"bmChopDual": 3,
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"bmMacro": 4,
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"bmMacroChop": 5,
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}
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SPOCKOPTION_TRIGGER_INVERT = 0x40
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SPOCKOPTION_TRIGGER_SOURCE_A = 0x00
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SPOCKOPTION_TRIGGER_SOURCE_B = 0x04
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SPOCKOPTION_TRIGGER_SWAP = 0x02
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SPOCKOPTION_TRIGGER_TYPE_SAMPLED_ANALOG = 0x00
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SPOCKOPTION_TRIGGER_TYPE_HARDWARE = 0x01
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KITCHENSINKA_CHANNEL_A_COMPARATOR_ENABLE = 0x80
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KITCHENSINKA_CHANNEL_B_COMPARATOR_ENABLE = 0x40
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KITCHENSINKB_ANALOG_FILTER_ENABLE = 0x80
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KITCHENSINKB_WAVEFORM_GENERATOR_ENABLE = 0x40
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def __init__(self, stream):
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self._stream = stream
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self._transactions = []
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def new_transaction(self):
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def transaction(self):
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return self.Transaction(self)
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async def issue(self, cmd):
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@ -107,6 +162,8 @@ class VirtualMachine:
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return (await self.read_replies(1))[0]
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async def read_replies(self, n):
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if self._transactions:
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raise TypeError("Command transaction in progress")
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await self._stream.readuntil(b'\r')
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replies = []
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for i in range(n):
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@ -114,139 +171,130 @@ class VirtualMachine:
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return replies
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async def reset(self):
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if self._transactions:
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raise TypeError("Command transaction in progress")
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await self._stream.write(b'!')
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await self._stream.readuntil(b'!')
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async def set_register(self, name, value):
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width, base, desc, dtype = self.Registers[name]
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bs = struct.pack('<i' if dtype == 'int' else '<I', value)
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cmd = '{:02x}@'.format(base) + 'z'.join('{:02x}'.format(bs[i]) for i in range(width)) + 's'
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await self.issue(cmd)
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def encode(self, value, dtype):
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sign = dtype[0]
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if '.' in dtype:
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whole, fraction = map(int, dtype[1:].split('.', 1))
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width = whole + fraction
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value = int(round(value * (1 << fraction)))
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else:
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width = int(dtype[1:])
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if sign == 'U':
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n = 1 << width
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value = max(0, min(value, n-1))
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bs = struct.pack('<I', value)
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elif sign == 'S':
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n = 1 << (width - 1)
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value = max(-n, min(value, n-1))
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bs = struct.pack('<i', value)
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else:
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raise TypeError("Unrecognised type")
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return bs[:width//8]
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def decode(self, bs, dtype):
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if dtype == 'int':
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return struct.unpack('<i', bs)[0]
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elif dtype == 'uint':
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return struct.unpack('<I', bs)[0]
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elif dtype.startswith('fixed.'):
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fraction_bits = int(dtype[6:])
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return struct.unpack('<i', bs)[0] / (1<<fraction_bits)
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elif dtype.startswith('ufixed.'):
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fraction_bits = int(dtype[7:])
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return struct.unpack('<I', bs)[0] / (1<<fraction_bits)
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else:
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raise TypeError("Unrecognised type")
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def calculate_width(self, dtype):
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if '.' in dtype:
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return sum(map(int, dtype[1:].split('.', 1))) // 8
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else:
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return int(dtype[1:]) // 8
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async def set_registers(self, **kwargs):
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async with self.new_transaction():
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for name, value in kwargs.items():
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await self.set_register(name, value)
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cmd = ''
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r0 = r1 = None
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for base, name in sorted((self.Registers[name][0], name) for name in kwargs):
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base, dtype, desc = self.Registers[name]
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for i, byte in enumerate(self.encode(kwargs[name], dtype)):
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if cmd:
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cmd += 'z'
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r1 += 1
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address = base + i
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if r1 is None or address > r1 + 3:
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cmd += '{:02x}@'.format(address)
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r0 = r1 = address
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else:
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cmd += 'n' * (address - r1)
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r1 = address
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if byte != r0:
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cmd += '[' if byte == 0 else '{:02x}'.format(byte)
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r0 = byte
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if cmd:
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await self.issue(cmd + 's')
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async def get_register(self, name):
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width, base, desc, dtype = self.Registers[name]
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base, dtype, desc = self.Registers[name]
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await self.issue('{:02x}@p'.format(base))
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bs = []
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values = []
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width = self.calculate_width(dtype)
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for i in range(width):
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bs.append(int(await self.read_reply(), 16))
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values.append(int(await self.read_reply(), 16))
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if i < width-1:
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await self.issue(b'np')
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for i in range(4 - width):
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bs.append(0)
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value = struct.unpack('<i' if dtype == 'int' else '<I', bytes(bs))[0]
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return value
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return self.decode(bytes(values), dtype)
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async def get_revision(self):
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async def issue_get_revision(self):
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await self.issue(b'?')
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return await self.read_reply()
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async def capture_spock_registers(self):
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async def issue_capture_spock_registers(self):
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await self.issue(b'<')
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async def program_spock_registers(self):
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async def issue_program_spock_registers(self):
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await self.issue(b'>')
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async def configure_device_hardware(self):
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async def issue_configure_device_hardware(self):
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await self.issue(b'U')
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async def streaming_trace(self):
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async def issue_streaming_trace(self):
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await self.issue(b'T')
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async def triggered_trace(self):
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async def issue_triggered_trace(self):
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await self.issue(b'D')
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async def cancel_trace(self):
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async def issue_cancel_trace(self):
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await self.issue(b'K')
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async def sample_dump_csv(self):
|
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async def issue_sample_dump_csv(self):
|
||||
await self.issue(b'S')
|
||||
|
||||
async def analog_dump_binary(self):
|
||||
async def issue_analog_dump_binary(self):
|
||||
await self.issue(b'S')
|
||||
|
||||
async def read_wavetable(self, size=1024, address=0):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vpSize=size, vpAddress=address)
|
||||
await self.issue(b'R')
|
||||
return await self._stream.readexactly(size)
|
||||
async def issue_wavetable_read(self):
|
||||
await self.issue(b'R')
|
||||
|
||||
async def write_wavetable(self, data, address=0):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vpSize=1, vpAddress=address)
|
||||
for byte in data:
|
||||
await self.issue('{:02x}W'.format(byte))
|
||||
async def wavetable_write(self, byte):
|
||||
await self.issue('{:02x}W'.format(byte))
|
||||
|
||||
async def synthesize_wavetable(self, mode='sine', ratio=0.5):
|
||||
mode = {'sine': 0, 'sawtooth': 1, 'exponential': 2, 'square': 3}[mode.lower()]
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vpCmd=0, vpMode=mode, vpRatio=int(max(0, min(ratio, 1))*65535))
|
||||
await self.issue(b'Y')
|
||||
async def issue_synthesize_wavetable(self):
|
||||
await self.issue(b'Y')
|
||||
|
||||
async def translate_wavetable(self, ratio, level=1, offset=0, size=0, index=0, address=0):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vpCmd=0, vpMode=0, vpLevel=int(65535*level), vpOffset=int(65535*offset), vpRatio=ratio,
|
||||
vpSize=size, vpIndex=index, vpAddress=address)
|
||||
await self.issue(b'X')
|
||||
async def issue_translate_wavetable(self):
|
||||
await self.issue(b'X')
|
||||
|
||||
async def stop_waveform_generator(self):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vpCmd=1, vpMode=0)
|
||||
await self.issue(b'Z')
|
||||
async def issue_control_waveform_generator(self):
|
||||
await self.issue(b'Z')
|
||||
|
||||
async def start_waveform_generator(self, clock, modulo, mark, space, rest, option):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vpCmd=2, vpMode=0, vpClock=clock, vpModulo=modulo,
|
||||
vpMark=mark, vpSpace=space, vrRest=rest, vpOption=option)
|
||||
await self.issue(b'Z')
|
||||
async def issue_read_eeprom(self):
|
||||
await self.issue(b'r')
|
||||
|
||||
async def start_clock_generator(self):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vpCmd=3, vpMode=0)
|
||||
await self.issue(b'Z')
|
||||
|
||||
async def read_eeprom(self, address):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vrEepromAddress=address)
|
||||
await self.issue(b'r')
|
||||
return int(await self.read_reply(), 16)
|
||||
|
||||
async def write_eeprom(self, address, data):
|
||||
async with self.new_transaction():
|
||||
await self.set_registers(vrEepromAddress=address, vrEepromData=data)
|
||||
await self.issue(b'w')
|
||||
return int(await self.read_reply(), 16)
|
||||
async def issue_write_eeprom(self):
|
||||
await self.issue(b'w')
|
||||
|
||||
|
||||
async def main():
|
||||
from streams import SerialStream
|
||||
vm = VirtualMachine(SerialStream())
|
||||
await vm.reset()
|
||||
print(await vm.get_revision())
|
||||
print(await vm.get_register('vrConverterLo'))
|
||||
print(await vm.get_register('vrTriggerLevel'))
|
||||
print(await vm.get_register('vrConverterHi'))
|
||||
await vm.set_register('vrTriggerLevel', 15000)
|
||||
print(await vm.get_register('vrTriggerLevel'))
|
||||
n = await vm.read_eeprom(0)
|
||||
print(n)
|
||||
print(await vm.write_eeprom(0, n+1))
|
||||
print(await vm.read_eeprom(0))
|
||||
async with vm.new_transaction():
|
||||
await vm.set_registers(vrKitchenSinkB=0x40)
|
||||
await vm.configure_device_hardware()
|
||||
await vm.synthesize_wavetable('sawtooth')
|
||||
#data = await vm.read_wavetable()
|
||||
#global array
|
||||
#array = np.ndarray(buffer=data, shape=(len(data),), dtype='uint8')
|
||||
#print(array)
|
||||
await vm.translate_wavetable(671088)
|
||||
await vm.start_waveform_generator(clock=40, modulo=1000, mark=10, space=1, rest=0x7f00, option=0x8004)
|
||||
|
||||
if __name__ == '__main__':
|
||||
asyncio.get_event_loop().run_until_complete(main())
|
||||
|
||||
|
||||
Reference in New Issue
Block a user