4180 LabTeam - Spring '18
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Lab1_Part72
Lab1_Part7
Fork of MCP23S17_Basic_IO_Demo by
Revision 4:58a089a8b601, committed 2018-01-31
- Comitter:
- bjs9
- Date:
- Wed Jan 31 06:14:18 2018 +0000
- Parent:
- 3:bdc6c6bafe13
- Child:
- 5:ec6bfed1bada
- Commit message:
- changes;
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/main.cpp Wed Jan 31 06:10:23 2018 +0000 +++ b/main.cpp Wed Jan 31 06:14:18 2018 +0000 @@ -51,13 +51,13 @@ // Start Loopback test sending out and reading back values // loopback test uses A0 and B0 pins - so use a wire to jumper those two pins on MCP23S17 together while (1) { - B0 = chip.read(PORT_B)& 0x01; - if (B0 == 0) - { - chip.write(PORT_A,1); // output 1 at A0 to light up LED - } else { - chip.write(PORT_A,0); // turn off LED - } + led1= chip.read(PORT_B)& 0x01; + // if (B0 == 0) + //{ + // chip.write(PORT_A,1); // output 1 at A0 to light up LED + //} else { + // chip.write(PORT_A,0); // turn off LED + // } // write 0xAA to MCP23S17 Port A // chip.write(PORT_A, 0xAA); //wait(.5);