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MPR121/testi2cMPR.cc@0:9a49249d42b3, 2017-12-13 (annotated)
- Committer:
- Charith Dassanayake
- Date:
- Wed Dec 13 00:06:47 2017 -0500
- Revision:
- 0:9a49249d42b3
Initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Charith Dassanayake |
0:9a49249d42b3 | 1 | #include <iostream> |
Charith Dassanayake |
0:9a49249d42b3 | 2 | #include <CPPToPigpio.h> |
Charith Dassanayake |
0:9a49249d42b3 | 3 | #include "MPR121.cc" |
Charith Dassanayake |
0:9a49249d42b3 | 4 | //using namespace CPPToPigpio; |
Charith Dassanayake |
0:9a49249d42b3 | 5 | |
Charith Dassanayake |
0:9a49249d42b3 | 6 | CPPToPigpio::I2C myi2c(p2, p3); |
Charith Dassanayake |
0:9a49249d42b3 | 7 | Mpr121 mpr121(&myi2c, Mpr121::ADD_VSS); |
Charith Dassanayake |
0:9a49249d42b3 | 8 | void fallInterrupt(int gpio, int level, uint32_t tick) { |
Charith Dassanayake |
0:9a49249d42b3 | 9 | int key_code=0; |
Charith Dassanayake |
0:9a49249d42b3 | 10 | int value=mpr121.read(0x00); |
Charith Dassanayake |
0:9a49249d42b3 | 11 | value +=mpr121.read(0x01)<<8; |
Charith Dassanayake |
0:9a49249d42b3 | 12 | |
Charith Dassanayake |
0:9a49249d42b3 | 13 | for (int i=0; i<12; i++) { |
Charith Dassanayake |
0:9a49249d42b3 | 14 | if (((value>>i)&0x01)==1) key_code=i+1; |
Charith Dassanayake |
0:9a49249d42b3 | 15 | } |
Charith Dassanayake |
0:9a49249d42b3 | 16 | |
Charith Dassanayake |
0:9a49249d42b3 | 17 | if (key_code) printf("Key Pressed: %d\n", key_code-1); |
Charith Dassanayake |
0:9a49249d42b3 | 18 | |
Charith Dassanayake |
0:9a49249d42b3 | 19 | |
Charith Dassanayake |
0:9a49249d42b3 | 20 | } |
Charith Dassanayake |
0:9a49249d42b3 | 21 | |
Charith Dassanayake |
0:9a49249d42b3 | 22 | int main() |
Charith Dassanayake |
0:9a49249d42b3 | 23 | { |
Charith Dassanayake |
0:9a49249d42b3 | 24 | |
Charith Dassanayake |
0:9a49249d42b3 | 25 | //gpioInitialise(); |
Charith Dassanayake |
0:9a49249d42b3 | 26 | |
Charith Dassanayake |
0:9a49249d42b3 | 27 | printf("\nHello from the mbed & mpr121\n\r"); |
Charith Dassanayake |
0:9a49249d42b3 | 28 | |
Charith Dassanayake |
0:9a49249d42b3 | 29 | unsigned char dataArray[2]; |
Charith Dassanayake |
0:9a49249d42b3 | 30 | int key; |
Charith Dassanayake |
0:9a49249d42b3 | 31 | int count = 0; |
Charith Dassanayake |
0:9a49249d42b3 | 32 | |
Charith Dassanayake |
0:9a49249d42b3 | 33 | printf("Test 1: read a value: \r\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 34 | dataArray[0] = mpr121.read(AFE_CFG); |
Charith Dassanayake |
0:9a49249d42b3 | 35 | printf("Read value=%x\r\n\n",dataArray[0]); |
Charith Dassanayake |
0:9a49249d42b3 | 36 | |
Charith Dassanayake |
0:9a49249d42b3 | 37 | printf("Test 2: read a value: \r\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 38 | dataArray[0] = mpr121.read(0x5d); |
Charith Dassanayake |
0:9a49249d42b3 | 39 | printf("Read value=%x\r\n\n",dataArray[0]); |
Charith Dassanayake |
0:9a49249d42b3 | 40 | |
Charith Dassanayake |
0:9a49249d42b3 | 41 | printf("Test 3: write & read a value: \r\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 42 | mpr121.read(ELE0_T); |
Charith Dassanayake |
0:9a49249d42b3 | 43 | mpr121.write(ELE0_T,0x22); |
Charith Dassanayake |
0:9a49249d42b3 | 44 | dataArray[0] = mpr121.read(ELE0_T); |
Charith Dassanayake |
0:9a49249d42b3 | 45 | printf("Read value=%x\r\n\n",dataArray[0]); |
Charith Dassanayake |
0:9a49249d42b3 | 46 | |
Charith Dassanayake |
0:9a49249d42b3 | 47 | printf("Test 4: Write many values: \r\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 48 | unsigned char data[] = {0x1,0x3,0x5,0x9,0x15,0x25,0x41}; |
Charith Dassanayake |
0:9a49249d42b3 | 49 | mpr121.writeMany(0x42,data,7); |
Charith Dassanayake |
0:9a49249d42b3 | 50 | |
Charith Dassanayake |
0:9a49249d42b3 | 51 | // Now read them back .. |
Charith Dassanayake |
0:9a49249d42b3 | 52 | key = 0x42; |
Charith Dassanayake |
0:9a49249d42b3 | 53 | count = 0; |
Charith Dassanayake |
0:9a49249d42b3 | 54 | while (count < 7) { |
Charith Dassanayake |
0:9a49249d42b3 | 55 | char result = mpr121.read(key); |
Charith Dassanayake |
0:9a49249d42b3 | 56 | key++; |
Charith Dassanayake |
0:9a49249d42b3 | 57 | count++; |
Charith Dassanayake |
0:9a49249d42b3 | 58 | printf("Read value: '%x'=%x\n\r",key,result); |
Charith Dassanayake |
0:9a49249d42b3 | 59 | } |
Charith Dassanayake |
0:9a49249d42b3 | 60 | |
Charith Dassanayake |
0:9a49249d42b3 | 61 | printf("Test 5: Read Electrodes:\r\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 62 | key = ELE0_T; |
Charith Dassanayake |
0:9a49249d42b3 | 63 | count = 0; |
Charith Dassanayake |
0:9a49249d42b3 | 64 | while (count < 24) { |
Charith Dassanayake |
0:9a49249d42b3 | 65 | char result = mpr121.read(key); |
Charith Dassanayake |
0:9a49249d42b3 | 66 | printf("Read key:%x value:%x\n\r",key,result); |
Charith Dassanayake |
0:9a49249d42b3 | 67 | key++; |
Charith Dassanayake |
0:9a49249d42b3 | 68 | count++; |
Charith Dassanayake |
0:9a49249d42b3 | 69 | } |
Charith Dassanayake |
0:9a49249d42b3 | 70 | printf("--------- \r\n\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 71 | |
Charith Dassanayake |
0:9a49249d42b3 | 72 | //mpr121.setProximityMode(true); |
Charith Dassanayake |
0:9a49249d42b3 | 73 | printf("reading...\r\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 74 | printf("ELE_CFG=%x\r\n", mpr121.read(ELE_CFG)); |
Charith Dassanayake |
0:9a49249d42b3 | 75 | |
Charith Dassanayake |
0:9a49249d42b3 | 76 | CPPToPigpio::DigitalIn intr(p17); |
Charith Dassanayake |
0:9a49249d42b3 | 77 | intr.mode(PullUp); |
Charith Dassanayake |
0:9a49249d42b3 | 78 | gpioSetISRFunc(p17, FALLING_EDGE, 0, fallInterrupt); |
Charith Dassanayake |
0:9a49249d42b3 | 79 | |
Charith Dassanayake |
0:9a49249d42b3 | 80 | |
Charith Dassanayake |
0:9a49249d42b3 | 81 | while (1) { |
Charith Dassanayake |
0:9a49249d42b3 | 82 | time_sleep(5); |
Charith Dassanayake |
0:9a49249d42b3 | 83 | printf(".\r\n"); |
Charith Dassanayake |
0:9a49249d42b3 | 84 | |
Charith Dassanayake |
0:9a49249d42b3 | 85 | } |
Charith Dassanayake |
0:9a49249d42b3 | 86 | |
Charith Dassanayake |
0:9a49249d42b3 | 87 | |
Charith Dassanayake |
0:9a49249d42b3 | 88 | gpioTerminate(); |
Charith Dassanayake |
0:9a49249d42b3 | 89 | } |
Charith Dassanayake |
0:9a49249d42b3 | 90 | |
Charith Dassanayake |
0:9a49249d42b3 | 91 | |
Charith Dassanayake |
0:9a49249d42b3 | 92 | |
Charith Dassanayake |
0:9a49249d42b3 | 93 | |
Charith Dassanayake |
0:9a49249d42b3 | 94 | |
Charith Dassanayake |
0:9a49249d42b3 | 95 | |
Charith Dassanayake |
0:9a49249d42b3 | 96 | |
Charith Dassanayake |
0:9a49249d42b3 | 97 |