Yann Garcia
Test application for the library MCP23017_I2C
Dependencies: DebugLibrary MCP23017_I2C mbed
Revision 3:3f23faf5f7eb, committed 2015-01-13
- Comitter:
- Yann
- Date:
- Tue Jan 13 10:09:13 2015 +0000
- Parent:
- 2:83b9df729e73
- Child:
- 4:1a72df541a38
- Commit message:
- Add PullUp support
Changed in this revision
| MCP23017_I2C.lib | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/MCP23017_I2C.lib Fri Jan 09 15:36:08 2015 +0000 +++ b/MCP23017_I2C.lib Tue Jan 13 10:09:13 2015 +0000 @@ -1,1 +1,1 @@ -MCP23017_I2C#ec9e770173d5 +MCP23017_I2C#3bea48e1505c
--- a/main.cpp Fri Jan 09 15:36:08 2015 +0000
+++ b/main.cpp Tue Jan 13 10:09:13 2015 +0000
@@ -44,25 +44,34 @@
g_gpioExp.write(GPB3, 0);
break;
case 'g':
- g_gpioExp.write(GPB7, 1);
+ g_gpioExp.write(GPB4, 1);
break;
case 'h':
+ g_gpioExp.write(GPB4, 0);
+ break;
+ case 'i':
+ g_gpioExp.write(GPB7, 1);
+ break;
+ case 'j':
g_gpioExp.write(GPB7, 0);
break;
- case 'i': {
+ case 'r':
+ g_gpioExp.reset();
+ break;
+ case 's': {
std::list<unsigned char> lcdBus;
- lcdBus.push_back(GPA7);
+ lcdBus.push_back(GPA7); // First item in the list
lcdBus.push_back(GPA6);
lcdBus.push_back(GPA5);
lcdBus.push_back(GPA4);
unsigned char busId = g_gpioExp.createBus(lcdBus);
- g_gpioExp.busWrite(busId, 0x000A); // GPA7=1, GPA6=0, GPA5=1, GPA4=0
+ g_gpioExp.busWrite(busId, 0x000A); // GPA7=1, GPA6=0, GPA5=1, GPA4=0 - LSB is GPB4, MSB is GPA7
+ wait_us(20);
+ g_gpioExp.busWrite(busId, 0x0000); // GPA7=1, GPA6=0, GPA5=1, GPA4=0
+ wait_us(20);
g_gpioExp.deleteBus(busId);
}
break;
- case 'r':
- g_gpioExp.reset();
- break;
default:
std::cout << "Invalid user choice\r" << std::endl;
break;
@@ -80,15 +89,18 @@
{
char value;
std::cout << "\r" << std::endl << "\r" << std::endl << "MCP23017_I2C v0.1\r" << std::endl;
- std::cout << "\tSet PortB-0 :\t\ta\r" << std::endl;
- std::cout << "\tUnset PortB-0 :\t\tb\r" << std::endl;
- std::cout << "\tSet PortB-2 :\t\tc\r" << std::endl;
- std::cout << "\tUnset PortB-2 :\t\td\r" << std::endl;
- std::cout << "\tSet PortB-3 :\t\te\r" << std::endl;
- std::cout << "\tUnset PortB-3 :\t\tf\r" << std::endl;
- std::cout << "\tSet PortB-7 :\t\tg\r" << std::endl;
- std::cout << "\tUnset PortB-7 :\t\th\r" << std::endl;
- std::cout << "\tReset device :\t\tr\r" << std::endl;
+ std::cout << "\tSet MUX_EN1 (PortB-0) :\t\ta\r" << std::endl;
+ std::cout << "\tUnset MUX_EN1 (PortB-0) :\t\tb\r" << std::endl;
+ std::cout << "\tSet MUX_ADDR0 (PortB-2) :\t\tc\r" << std::endl;
+ std::cout << "\tUnset MUX_ADDR0 (PortB-2) :\t\td\r" << std::endl;
+ std::cout << "\tSet MUX_ADDR1 (PortB-3) :\t\te\r" << std::endl;
+ std::cout << "\tUnset MUX_ADDR1 (PortB-3) :\t\tf\r" << std::endl;
+ std::cout << "\tSet MUX_ADDR2 (PortB-4) :\t\tg\r" << std::endl;
+ std::cout << "\tUnset MUX_ADDR2 (PortB-4) :\t\th\r" << std::endl;
+ std::cout << "\tSet BOARD_EN (PortB-7) :\t\ti\r" << std::endl;
+ std::cout << "\tUnset BOARD_EN (PortB-7) :\t\tj\r" << std::endl;
+ std::cout << "\tReset device :\t\tr\r" << std::endl;
+ std::cout << "\tBus test :\t\ts\r" << std::endl;
std::cout << "Enter your choice: " << std::flush;
value = getchar();
std::cout << "\r" << std::endl;
@@ -98,7 +110,7 @@
void GpioAIntr() {
unsigned char gpioId, gpioValue;
wait(0.6); // Debounce timer
- g_gpioExp.getLastInterruptPin(&gpioId, &gpioValue); // Get interrupt info and clear it
+ g_gpioExp.getLastInterruptPinAndValue(&gpioId, &gpioValue); // Get interrupt info and clear it
std::cout << "\r" << std::endl << "GpioAIntr: interrupt on pin #" << std::hex << std::setw(2) << std::setfill('0') << static_cast<unsigned int>(gpioId) << " - value: " << static_cast<unsigned int>(gpioValue) << "\r" << std::endl;
}