Takeru Wako
/
RS485_Transmit
Using LTC1485 simple transmit program
main.cpp@1:db0469ab641f, 2017-02-26 (annotated)
- Committer:
- WakoTakeru
- Date:
- Sun Feb 26 06:10:45 2017 +0000
- Revision:
- 1:db0469ab641f
- Parent:
- 0:5f4b6ac9df07
ID check
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
WakoTakeru | 0:5f4b6ac9df07 | 1 | /*--- 送信側 ---*/ |
WakoTakeru | 0:5f4b6ac9df07 | 2 | #include "mbed.h" |
WakoTakeru | 0:5f4b6ac9df07 | 3 | #include "Serial.h" |
WakoTakeru | 0:5f4b6ac9df07 | 4 | DigitalOut led(PA_12); |
WakoTakeru | 0:5f4b6ac9df07 | 5 | DigitalOut myled(LED1); |
WakoTakeru | 0:5f4b6ac9df07 | 6 | DigitalOut rede(PA_8); |
WakoTakeru | 0:5f4b6ac9df07 | 7 | |
WakoTakeru | 0:5f4b6ac9df07 | 8 | DigitalIn address1(PF_0); |
WakoTakeru | 0:5f4b6ac9df07 | 9 | DigitalIn address2(PB_1); |
WakoTakeru | 0:5f4b6ac9df07 | 10 | DigitalIn address4(PB_6); |
WakoTakeru | 0:5f4b6ac9df07 | 11 | DigitalIn address8(PB_7); |
WakoTakeru | 0:5f4b6ac9df07 | 12 | |
WakoTakeru | 0:5f4b6ac9df07 | 13 | Serial myserial(PA_9,PA_10); |
WakoTakeru | 0:5f4b6ac9df07 | 14 | |
WakoTakeru | 0:5f4b6ac9df07 | 15 | void send_rs485(); |
WakoTakeru | 0:5f4b6ac9df07 | 16 | void onInterrupt(); |
WakoTakeru | 0:5f4b6ac9df07 | 17 | |
WakoTakeru | 0:5f4b6ac9df07 | 18 | int index = 0; |
WakoTakeru | 0:5f4b6ac9df07 | 19 | int buffer[5] = {0}; |
WakoTakeru | 1:db0469ab641f | 20 | int address; |
WakoTakeru | 0:5f4b6ac9df07 | 21 | int main() { |
WakoTakeru | 0:5f4b6ac9df07 | 22 | rede=0; |
WakoTakeru | 1:db0469ab641f | 23 | address = address1<<0 | address2<<1 | address4<<2 | address8<<3; |
WakoTakeru | 0:5f4b6ac9df07 | 24 | myserial.attach(&onInterrupt,Serial::RxIrq); |
WakoTakeru | 0:5f4b6ac9df07 | 25 | while(1){ |
WakoTakeru | 0:5f4b6ac9df07 | 26 | if(address == 0x01){ |
WakoTakeru | 0:5f4b6ac9df07 | 27 | myled = 1; |
WakoTakeru | 0:5f4b6ac9df07 | 28 | }else{ |
WakoTakeru | 0:5f4b6ac9df07 | 29 | myled=0; |
WakoTakeru | 0:5f4b6ac9df07 | 30 | } |
WakoTakeru | 0:5f4b6ac9df07 | 31 | send_rs485(); |
WakoTakeru | 0:5f4b6ac9df07 | 32 | led=1; |
WakoTakeru | 0:5f4b6ac9df07 | 33 | wait(0.05); |
WakoTakeru | 0:5f4b6ac9df07 | 34 | led=0; |
WakoTakeru | 0:5f4b6ac9df07 | 35 | wait(0.05); |
WakoTakeru | 0:5f4b6ac9df07 | 36 | } |
WakoTakeru | 0:5f4b6ac9df07 | 37 | } |
WakoTakeru | 0:5f4b6ac9df07 | 38 | |
WakoTakeru | 0:5f4b6ac9df07 | 39 | void send_rs485(){ |
WakoTakeru | 0:5f4b6ac9df07 | 40 | int TxData[5] = {0}; |
WakoTakeru | 0:5f4b6ac9df07 | 41 | |
WakoTakeru | 0:5f4b6ac9df07 | 42 | /*データ準備*/ |
WakoTakeru | 0:5f4b6ac9df07 | 43 | TxData[0] = '#';//TAG |
WakoTakeru | 1:db0469ab641f | 44 | TxData[1] = address;//ID |
WakoTakeru | 0:5f4b6ac9df07 | 45 | TxData[2] = 0x41;//data |
WakoTakeru | 0:5f4b6ac9df07 | 46 | TxData[3] = 0x41;//data |
WakoTakeru | 0:5f4b6ac9df07 | 47 | TxData[4] = (TxData[0]^TxData[1]^TxData[2]^TxData[3]); |
WakoTakeru | 0:5f4b6ac9df07 | 48 | |
WakoTakeru | 0:5f4b6ac9df07 | 49 | /*送信*/ |
WakoTakeru | 0:5f4b6ac9df07 | 50 | rede = 1; |
WakoTakeru | 0:5f4b6ac9df07 | 51 | for(int i=0;i<=4;i++){ |
WakoTakeru | 0:5f4b6ac9df07 | 52 | myserial.putc(TxData[i]); |
WakoTakeru | 0:5f4b6ac9df07 | 53 | } |
WakoTakeru | 0:5f4b6ac9df07 | 54 | wait_us(2500); |
WakoTakeru | 0:5f4b6ac9df07 | 55 | rede = 0; |
WakoTakeru | 0:5f4b6ac9df07 | 56 | } |
WakoTakeru | 0:5f4b6ac9df07 | 57 | |
WakoTakeru | 0:5f4b6ac9df07 | 58 | void onInterrupt(){ |
WakoTakeru | 0:5f4b6ac9df07 | 59 | myled=1; |
WakoTakeru | 0:5f4b6ac9df07 | 60 | wait(0.01); |
WakoTakeru | 0:5f4b6ac9df07 | 61 | myled=0; |
WakoTakeru | 0:5f4b6ac9df07 | 62 | wait(0.01); |
WakoTakeru | 0:5f4b6ac9df07 | 63 | char data = myserial.getc(); |
WakoTakeru | 0:5f4b6ac9df07 | 64 | if(data == '#'){ |
WakoTakeru | 0:5f4b6ac9df07 | 65 | index = 1; |
WakoTakeru | 0:5f4b6ac9df07 | 66 | return; |
WakoTakeru | 0:5f4b6ac9df07 | 67 | } |
WakoTakeru | 0:5f4b6ac9df07 | 68 | if(index != 0){ |
WakoTakeru | 0:5f4b6ac9df07 | 69 | buffer[index-1] = data; |
WakoTakeru | 0:5f4b6ac9df07 | 70 | if(index == 5){ |
WakoTakeru | 0:5f4b6ac9df07 | 71 | index = 0; |
WakoTakeru | 0:5f4b6ac9df07 | 72 | } |
WakoTakeru | 0:5f4b6ac9df07 | 73 | index ++; |
WakoTakeru | 0:5f4b6ac9df07 | 74 | } |
WakoTakeru | 0:5f4b6ac9df07 | 75 | } |