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amend driver to support flux afe fast pulses
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| import spidev | ||
|
|
||
| class HMC7044: | ||
| def __init__(self): | ||
| # self.spi = spidev.SpiDev() | ||
| # self.spi.open(2, 0) | ||
| # self.spi.mode = 0 | ||
| # self.spi.max_speed_hz = 500000 | ||
| # to_send = [0x04, 0x00, 0xff] # All gains set x2 | ||
| # self.spi.xfer(to_send) | ||
| pass |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,136 @@ | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| R0 (INIT) 0x000090 | ||
| R0 0x000010 | ||
| R2 0x000200 | ||
| R3 0x000306 | ||
| R4 0x0004D0 | ||
| R5 0x00055B | ||
| R6 0x000600 | ||
| R12 0x000C51 | ||
| R13 0x000D04 | ||
| R256 0x01006A | ||
| R257 0x010155 | ||
| R258 0x010255 | ||
| R259 0x010301 | ||
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| R305 0x013155 | ||
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| R337 0x015102 | ||
| R338 0x015200 | ||
| R339 0x015300 | ||
| R340 0x01547D | ||
| R341 0x015500 | ||
| R342 0x01567D | ||
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| R354 0x016244 | ||
| R355 0x016300 | ||
| R356 0x016400 | ||
| R357 0x0165A0 | ||
| R369 0x0171AA | ||
| R370 0x017202 | ||
| R380 0x017C15 | ||
| R381 0x017D33 | ||
| R358 0x016600 | ||
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| R8191 0x1FFF53 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,32 @@ | ||
| import spidev | ||
|
|
||
|
|
||
| DACS = [0, 1, 2, 3, 4, 5, 6, 7] | ||
| MAX_VOLTAGE = 1.5 # V | ||
|
|
||
| class DAC80508: | ||
| def __init__(self): | ||
| self.spi = spidev.SpiDev() | ||
| self.spi.open(1, 0) | ||
| self.spi.mode = 0 | ||
| self.spi.max_speed_hz = 500000 | ||
|
|
||
| to_send = [0x04, 0x00, 0xff] # All gains set x2 | ||
| self.spi.xfer(to_send) | ||
|
|
||
| # Set all dacs to 0V | ||
| for dac in DACS: | ||
| to_send = [0x08+dac, 0x80, 0x00] | ||
| self.spi.xfer(to_send) | ||
|
|
||
| def set_bias(self, dac:int, bias: float): | ||
| if not dac in DACS: | ||
| raise ValueError(f"dac should be any of {DACS}") | ||
| if abs(bias) > MAX_VOLTAGE: | ||
| raise ValueError(f"Bias values should be between -{MAX_VOLTAGE} and {MAX_VOLTAGE} V") | ||
|
|
||
| register_value = int(bias * (0xffff - 0x8000) / 2.5000) + 0x8000 | ||
| high_byte = (register_value & 0xff00) >> 8 | ||
| low_byte = (register_value & 0x00ff) | ||
| to_send = [0x08+dac, high_byte, low_byte] | ||
| self.spi.xfer(to_send) |
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