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Dependencies: 4DGL-uLCD-SE SDFileSystem
main.cpp@3:99acbebbed6c, 2016-09-23 (annotated)
- Committer:
- kswanson31
- Date:
- Fri Sep 23 19:34:38 2016 +0000
- Revision:
- 3:99acbebbed6c
- Parent:
- 2:20b2a7eb4bd8
- Child:
- 4:f5bc5d9a790b
Added ethernet demo
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
fkhan39 | 0:570683b2d0c9 | 1 | #include "mbed.h" |
fkhan39 | 0:570683b2d0c9 | 2 | |
fkhan39 | 1:4ed94566512a | 3 | AnalogOut aout(p18); |
fkhan39 | 1:4ed94566512a | 4 | AnalogIn ain(p15); |
fkhan39 | 0:570683b2d0c9 | 5 | DigitalOut led1(LED1); |
fkhan39 | 1:4ed94566512a | 6 | DigitalOut led2(LED2); |
fkhan39 | 1:4ed94566512a | 7 | DigitalOut led3(LED3); |
fkhan39 | 1:4ed94566512a | 8 | DigitalOut led4(LED4); |
fkhan39 | 0:570683b2d0c9 | 9 | |
fkhan39 | 1:4ed94566512a | 10 | int main() |
fkhan39 | 1:4ed94566512a | 11 | { |
fkhan39 | 2:20b2a7eb4bd8 | 12 | // part 1 |
fkhan39 | 1:4ed94566512a | 13 | const double pi = 3.141592653589793238462; |
fkhan39 | 1:4ed94566512a | 14 | const double amplitude = 1.0f; |
fkhan39 | 1:4ed94566512a | 15 | const double offset = 65535/2; // 0xFFFF/2 |
fkhan39 | 1:4ed94566512a | 16 | double rads = 0.0; |
fkhan39 | 1:4ed94566512a | 17 | uint16_t sample = 0; |
fkhan39 | 1:4ed94566512a | 18 | |
fkhan39 | 1:4ed94566512a | 19 | while(1) { |
fkhan39 | 1:4ed94566512a | 20 | // analog out |
fkhan39 | 1:4ed94566512a | 21 | |
fkhan39 | 1:4ed94566512a | 22 | for (int i = 0; i < 720; i++) { |
fkhan39 | 1:4ed94566512a | 23 | rads = (pi * i) / 180.0f; |
fkhan39 | 1:4ed94566512a | 24 | sample = (uint16_t)(amplitude * (offset * (cos(rads + pi))) + offset); |
fkhan39 | 1:4ed94566512a | 25 | aout.write_u16(sample); |
fkhan39 | 1:4ed94566512a | 26 | } |
fkhan39 | 1:4ed94566512a | 27 | |
fkhan39 | 1:4ed94566512a | 28 | |
fkhan39 | 1:4ed94566512a | 29 | // analog in |
fkhan39 | 1:4ed94566512a | 30 | led1 = (ain > 0.2f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 31 | led2 = (ain > 0.4f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 32 | led3 = (ain > 0.6f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 33 | led4 = (ain > 0.8f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 34 | wait(.01); |
fkhan39 | 0:570683b2d0c9 | 35 | } |
kswanson31 | 3:99acbebbed6c | 36 | |
kswanson31 | 3:99acbebbed6c | 37 | /* part 5 |
kswanson31 | 3:99acbebbed6c | 38 | // demo from https://docs.mbed.com/docs/mbed-os-api-reference/en/5.1/APIs/communication/network_sockets/ |
kswanson31 | 3:99acbebbed6c | 39 | |
kswanson31 | 3:99acbebbed6c | 40 | printf("Example network-socket HTTP client\n"); |
kswanson31 | 3:99acbebbed6c | 41 | |
kswanson31 | 3:99acbebbed6c | 42 | // Brings up the network interface |
kswanson31 | 3:99acbebbed6c | 43 | eth.connect(); |
kswanson31 | 3:99acbebbed6c | 44 | const char *ip = eth.get_ip_address(); |
kswanson31 | 3:99acbebbed6c | 45 | const char *mac = eth.get_mac_address(); |
kswanson31 | 3:99acbebbed6c | 46 | printf("IP address is: %s\n", ip ? ip : "No IP"); |
kswanson31 | 3:99acbebbed6c | 47 | printf("MAC address is: %s\n", mac ? mac : "No MAC"); |
kswanson31 | 3:99acbebbed6c | 48 | |
kswanson31 | 3:99acbebbed6c | 49 | // Open a socket on the network interface, and create a TCP connection to mbed.org |
kswanson31 | 3:99acbebbed6c | 50 | socket.open(ð); |
kswanson31 | 3:99acbebbed6c | 51 | socket.connect("developer.mbed.org", 80); |
kswanson31 | 3:99acbebbed6c | 52 | |
kswanson31 | 3:99acbebbed6c | 53 | // Send a simple http request |
kswanson31 | 3:99acbebbed6c | 54 | char sbuffer[] = "GET / HTTP/1.1\r\nHost: developer.mbed.org\r\n\r\n"; |
kswanson31 | 3:99acbebbed6c | 55 | int scount = socket.send(sbuffer, sizeof sbuffer); |
kswanson31 | 3:99acbebbed6c | 56 | printf("sent %d [%.*s]\r\n", scount, strstr(sbuffer, "\r\n")-sbuffer, sbuffer); |
kswanson31 | 3:99acbebbed6c | 57 | |
kswanson31 | 3:99acbebbed6c | 58 | // Recieve a simple http response and print out the response line |
kswanson31 | 3:99acbebbed6c | 59 | char rbuffer[64]; |
kswanson31 | 3:99acbebbed6c | 60 | int rcount = socket.recv(rbuffer, sizeof rbuffer); |
kswanson31 | 3:99acbebbed6c | 61 | printf("recv %d [%.*s]\r\n", rcount, strstr(rbuffer, "\r\n")-rbuffer, rbuffer); |
kswanson31 | 3:99acbebbed6c | 62 | |
kswanson31 | 3:99acbebbed6c | 63 | // Close the socket to return its memory and bring down the network interface |
kswanson31 | 3:99acbebbed6c | 64 | socket.close(); |
kswanson31 | 3:99acbebbed6c | 65 | eth.disconnect(); |
kswanson31 | 3:99acbebbed6c | 66 | |
kswanson31 | 3:99acbebbed6c | 67 | printf("Done\n"); |
kswanson31 | 3:99acbebbed6c | 68 | */ |
fkhan39 | 1:4ed94566512a | 69 | } |