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nix-servo
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disable calibration and 1V ref

This commit is contained in:
Florian Agbuya 2024-08-22 17:35:11 +08:00
parent 9e34cd9dff
commit 0f628aecc7
1 changed files with 2 additions and 2 deletions
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4
fast-servo/pyfastservo/dac.py
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@ -58,7 +58,7 @@ def check_version(spi):
def configure_dac(spi): def configure_dac(spi):
power_down_reg = spi_read(spi, 0x01) power_down_reg = spi_read(spi, 0x01)
spi_write(spi, 0x01, power_down_reg & ~(1 << 0)) # Clear EXTREF bit for internal reference spi_write(spi, 0x01, power_down_reg & ~(1 << 0)) # Clear EXTREF bit for internal reference
spi_write(spi, 0x0D, 0x00) # Set RREF to 10 kΩ for 1.0V reference # spi_write(spi, 0x0D, 0x00) # Set RREF to 10 kΩ for 1.0V reference
spi_write(spi, 0x04, 0xA0) # Enable on-chip IRSET (1.6 kΩ for 20mA output) spi_write(spi, 0x04, 0xA0) # Enable on-chip IRSET (1.6 kΩ for 20mA output)
spi_write(spi, 0x07, 0xA0) # Enable on-chip QRSET (1.6 kΩ for 20mA output) spi_write(spi, 0x07, 0xA0) # Enable on-chip QRSET (1.6 kΩ for 20mA output)
spi_write(spi, 0x05, 0x00) # Disable internal IRCML spi_write(spi, 0x05, 0x00) # Disable internal IRCML
@ -125,7 +125,7 @@ def configure_ad9117():
return False return False
configure_dac(spi) configure_dac(spi)
dac_self_calibration(spi) # dac_self_calibration(spi)
# Enable DAC outputs # Enable DAC outputs
spi_write(spi, 0x01, spi_read(spi, 0x01) & ~((1 << 4) | (1 << 3))) spi_write(spi, 0x01, spi_read(spi, 0x01) & ~((1 << 4) | (1 << 3)))