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shuttler: impl general reg access

This commit is contained in:
occheung 2023-09-18 19:53:54 -07:00 committed by Sébastien Bourdeauducq
parent e443e06e62
commit 06426e0ed9
1 changed files with 38 additions and 35 deletions
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73
artiq/coredevice/shuttler.py
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@ -170,44 +170,47 @@ class ADC:
@kernel
def read_id(self) -> TInt32:
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END | spi.SPI_INPUT,
24, ADC_SPI_DIV, ADC_CS)
self.bus.write(0x47 << 24)
return (self.bus.read() & 0xFFFF)
@kernel
def read_ch(self, channel: TInt32) -> TFloat:
# Always configure Profile 0
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END, 24, ADC_SPI_DIV, ADC_CS)
self.bus.write(0x10 << 24 | (0x8000 | ((channel * 2 + 1) << 4)) << 8)
# Configure Setup 0
# Input buffer must be enabled to use REF pins correctly
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END, 24, ADC_SPI_DIV, ADC_CS)
self.bus.write((0x20 << 24) | (0x1300 << 8))
# Trigger single conversion
self.bus.set_config_mu(
ADC_SPI_CONFIG, 24, ADC_SPI_DIV, ADC_CS)
self.bus.write((0x01 << 24) | (0x8010 << 8))
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_INPUT, 16, ADC_SPI_DIV, ADC_CS)
self.bus.write(0x40 << 24)
while self.bus.read() & 0x80:
delay(10*us)
self.bus.write(0x40 << 24)
delay(10*us)
def read8(self, addr: TInt32) -> TInt32:
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END | spi.SPI_INPUT,
32, ADC_SPI_DIV, ADC_CS)
self.bus.write(0x44 << 24)
adc_code = self.bus.read() & 0xFFFFFF
16, SPIT_ADC_RD, CS_ADC)
self.bus.write((addr | 0x40) << 24)
return self.bus.read() & 0xff
@kernel
def read16(self, addr: TInt32) -> TInt32:
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END | spi.SPI_INPUT,
24, SPIT_ADC_RD, CS_ADC)
self.bus.write((addr | 0x40) << 24)
return self.bus.read() & 0xffff
@kernel
def read24(self, addr: TInt32) -> TInt32:
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END | spi.SPI_INPUT,
32, SPIT_ADC_RD, CS_ADC)
self.bus.write((addr | 0x40) << 24)
return self.bus.read() & 0xffffff
@kernel
def write8(self, addr: TInt32, data: TInt32):
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END, 16, SPIT_ADC_WR, CS_ADC)
self.bus.write(addr << 24 | (data & 0xff) << 16)
@kernel
def write16(self, addr: TInt32, data: TInt32):
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END, 24, SPIT_ADC_WR, CS_ADC)
self.bus.write(addr << 24 | (data & 0xffff) << 8)
@kernel
def write24(self, addr: TInt32, data: TInt32):
self.bus.set_config_mu(
ADC_SPI_CONFIG | spi.SPI_END, 32, SPIT_ADC_WR, CS_ADC)
self.bus.write(addr << 24 | (data & 0xffffff))
return ((adc_code / (1 << 23)) - 1) * 2.5 / 0.1
@kernel