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Set read bit in MCP23S17 and raise exception in TGpioLinuxPin #7

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Set read bit in MCP23S17 and raise exception in TGpioLinuxPin #7

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cd6c00b
fix(MCP23S17): set read bit when reading registers
SpaceEEC Mar 18, 2019
eaa54cb
fix(TGpioLinuxPin): actually raise EFOpenError
SpaceEEC Mar 18, 2019
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2 changes: 1 addition & 1 deletion src/fpgpio.pas
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Original file line number Diff line number Diff line change
Expand Up @@ -460,7 +460,7 @@ class procedure TGpioLinuxPin.WriteToFile(const aFileName: String;
begin
fd := fpOpen(aFileName, O_WRONLY);
if fd = -1 then
EFOpenError.CreateFmt(SFOpenError, [aFileName]);
raise EFOpenError.CreateFmt(SFOpenError, [aFileName]);
FpWrite(fd, aBuffer, aCount);
FpClose(fd);
end;
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2 changes: 1 addition & 1 deletion src/mcp23017.pas
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Expand Up @@ -217,7 +217,7 @@ function TMCP23S17Controller.GetRegisterValue(aRegister: Byte): Byte;
begin
if HAEN then
begin
b[0] := Address;
b[0] := Address or 1;
b[1] := aRegister;
fSPIDevice.ReadAndWrite(b[0], 2, rb[0], 3);
end
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