text stringlengths 0 234 |
|---|
Rates : out Angle_Rates) |
is |
Ctrl4 : UInt8; |
UInt8s_To_Read : constant Integer := 6; -- ie, three 2-UInt8 integers |
-- the number of UInt8s in an Angle_Rates record object |
Received : SPI_Data_8b (1 .. UInt8s_To_Read); |
begin |
Read (This, CTRL_REG4, Ctrl4); |
Read_UInt8s (This, OUT_X_L, Received, UInt8s_To_Read); |
-- The above has the effect of separate reads, as follows: |
-- Read (This, OUT_X_L, Received (1)); |
-- Read (This, OUT_X_H, Received (2)); |
-- Read (This, OUT_Y_L, Received (3)); |
-- Read (This, OUT_Y_H, Received (4)); |
-- Read (This, OUT_Z_L, Received (5)); |
-- Read (This, OUT_Z_H, Received (6)); |
if (Ctrl4 and Endian_Selection_Mask) = L3GD20_Big_Endian'Enum_Rep then |
Swap2 (Received (1)'Address); |
Swap2 (Received (3)'Address); |
Swap2 (Received (5)'Address); |
end if; |
Rates.X := As_Angle_Rate_Pointer (Received (1)'Address).all; |
Rates.Y := As_Angle_Rate_Pointer (Received (3)'Address).all; |
Rates.Z := As_Angle_Rate_Pointer (Received (5)'Address).all; |
end Get_Raw_Angle_Rates; |
-------------------------- |
-- Configure_Interrupt1 -- |
-------------------------- |
procedure Configure_Interrupt1 |
(This : in out Three_Axis_Gyroscope; |
Triggers : Threshold_Event_List; |
Latched : Boolean := False; |
Active_Edge : Interrupt1_Active_Edge := L3GD20_Interrupt1_High_Edge; |
Combine_Events : Boolean := False; |
Sample_Count : Sample_Counter := 0) |
is |
Config : UInt8; |
Ctrl3 : UInt8; |
begin |
Read (This, CTRL_REG3, Ctrl3); |
Ctrl3 := Ctrl3 and 16#DF#; |
Ctrl3 := Ctrl3 or Active_Edge'Enum_Rep; |
Ctrl3 := Ctrl3 or INT1_Interrupt_Enable; |
Write (This, CTRL_REG3, Ctrl3); |
if Sample_Count > 0 then |
Set_Duration_Counter (This, Sample_Count); |
end if; |
Config := 0; |
if Latched then |
Config := Config or Int1_Latch_Enable_Bit; |
end if; |
if Combine_Events then |
Config := Config or Logically_And_Or_Events_Bit; |
end if; |
for Event of Triggers loop |
Config := Config or Axes_Interrupt_Enablers (Event.Axis); |
end loop; |
Write (This, INT1_CFG, Config); |
for Event of Triggers loop |
Set_Threshold (This, Event.Axis, Event.Threshold); |
end loop; |
end Configure_Interrupt1; |
---------------------------- |
-- Set_Interrupt_Pin_Mode -- |
---------------------------- |
procedure Set_Interrupt_Pin_Mode |
(This : in out Three_Axis_Gyroscope; |
Mode : Pin_Modes) |
is |
Ctrl3 : UInt8; |
begin |
Read (This, CTRL_REG3, Ctrl3); |
Ctrl3 := Ctrl3 and (not Interrupt_Pin_Mode_Bit); |
Ctrl3 := Ctrl3 or Mode'Enum_Rep; |
Write (This, CTRL_REG3, Ctrl3); |
end Set_Interrupt_Pin_Mode; |
----------------------- |
-- Enable_Interrupt1 -- |
----------------------- |
procedure Enable_Interrupt1 (This : in out Three_Axis_Gyroscope) is |
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