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Universal Serial Interface to FPGA's

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subdevices

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subdevices [2023/12/06 14:32] – [Stepper Motor] ursgrafsubdevices [2024/04/09 20:46] (current) – [DAC] ursgraf
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 |0x28|4|value_1|r|no|channel 1: digitized input value| |0x28|4|value_1|r|no|channel 1: digitized input value|
 |..|4|..|r/w|no|..| |..|4|..|r/w|no|..|
-The status register in the subheader is unused with this function. In the configuration register setting the bit 0 will reset the subdevice. This subdevice uses a pin on the FPGA device for each channel.+The status register in the subheader is unused with this function. In the configuration register setting the bit 0 will reset the subdevice. This subdevice uses 3 to 4 pins for the SPI depending on the particular type.
 ==== Subtypes ==== ==== Subtypes ====
 Currently there are three subtypes of this subdevice. The subtype information can be found in the ''function'' register of the header. Currently there are three subtypes of this subdevice. The subtype information can be found in the ''function'' register of the header.
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 |0x28|4|value_1|r/w|no|channel 1: digital output value| |0x28|4|value_1|r/w|no|channel 1: digital output value|
 |..|4|..|r/w|no|..| |..|4|..|r/w|no|..|
-The status register in the subheader is unused with this function. In the configuration register setting the bit 0 will reset the subdevice. This subdevice uses a pin on the FPGA device for each channel.+The status register in the subheader is unused with this function. In the configuration register setting the bit 0 will reset the subdevice. This subdevice uses 5 pins.
 ==== Subtypes ==== ==== Subtypes ====
 Currently there is one subtype of this subdevice. The subtype information can be found in the ''function'' register of the header. Currently there is one subtype of this subdevice. The subtype information can be found in the ''function'' register of the header.
 ^Subtype ID^Description^Example^ ^Subtype ID^Description^Example^
 |0x1|Simple DAC where the outputs are continuously set. All channels are updated at the same time|AD5668| |0x1|Simple DAC where the outputs are continuously set. All channels are updated at the same time|AD5668|
 +|0x2|Simple DAC where the outputs are continuously set. All channels are individually updated, +-10V|AD5754|
  
 ===== GPIO ===== ===== GPIO =====
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 |0xnn+4|4|acc_1|r/w|no|motor 1: acceleration prescaler between start and top speed| |0xnn+4|4|acc_1|r/w|no|motor 1: acceleration prescaler between start and top speed|
 |..|4|..|r/w|no|..| |..|4|..|r/w|no|..|
-|0xoo|4|stepps_todo_0|r/w|no|motor 0: destination position (number of steps)| +|0xoo|4|dest_steps_0|r/w|no|motor 0: destination position (number of steps)| 
-|0xoo+4|4|stepps_todo_1|r/w|no|motor 1: destination position (number of steps)|+|0xoo+4|4|dest_steps_1|r/w|no|motor 1: destination position (number of steps)|
 |..|4|..|r/w|no|..| |..|4|..|r/w|no|..|
-|0xpp|4|stepps_done_0|r|no|motor 0: current position (number of steps)| +|0xpp|4|curr_steps_0|r|no|motor 0: current position (number of steps)| 
-|0xpp+4|4|stepps_done_1|r|no|motor 1: current position (number of steps)|+|0xpp+4|4|curr_steps_1|r|no|motor 1: current position (number of steps)|
 |..|4|..|r|no|..| |..|4|..|r|no|..|
  
 === Motor Configuration Register === === Motor Configuration Register ===
 | 31 | ... | 06 | 05 | 04..03 | 02 | 01 | 00 | | 31 | ... | 06 | 05 | 04..03 | 02 | 01 | 00 |
-| | | Reset Stepcounter | Start | Run Mode | Two Phase | Full Step | Direction |+| | | Reset Step Counter | Start | Run Mode | Two Phase | Full Step | Direction |
  
   * Direction: 1 => CW; 0=> CCW   * Direction: 1 => CW; 0=> CCW
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   * Two Phase: 1 => two phase operation, 0 => one phase operation. Only required in full step mode.   * Two Phase: 1 => two phase operation, 0 => one phase operation. Only required in full step mode.
   * Run Mode: 00 => free running, no holding torque, 01 => stepping mode, 10 => speed mode, 11 => reserved   * Run Mode: 00 => free running, no holding torque, 01 => stepping mode, 10 => speed mode, 11 => reserved
-  * Start: if set to 1 the motor will start until stopped by a 0 or the number of steps is reached in stepping mode+  * Start: if set to 1 the motor will start. Writing a '0' will immediately stop the motor. The module will clear this bit to '0' when the number of steps is reached in stepping mode. You have to configure the register first and set the start bit only in a next register access.
   * Reset Step Counter: A '1' will reset the step counter   * Reset Step Counter: A '1' will reset the step counter
  
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 ^Offset^Size [byte] ^Name^r/w^Const^Description^ ^Offset^Size [byte] ^Name^r/w^Const^Description^
-|0x20|4|irq_line_0|r/w|no|IRQ line 0: number to flink IRQ| +|0x20|4|irq_line_0|r/w|no|IRQ line 0: number of flink IRQ| 
-|0x24|4|irq_line_1|r/w|no|IRQ line 1: number to flink IRQ|+|0x24|4|irq_line_1|r/w|no|IRQ line 1: number of flink IRQ|
 |..|4|..|r/w|no|..| |..|4|..|r/w|no|..|
  
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 1 => first signal (LSB) of the input vector.\\ 1 => first signal (LSB) of the input vector.\\
 2 => second signal of the input vector.\\ 2 => second signal of the input vector.\\
-... (and so on)+... 
  
subdevices.1701869578.txt.gz · Last modified: 2023/12/06 14:32 by ursgraf

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