Nuvoton / Mbed OS NuMaker_NuWicam_Lite

NuMaker NuWicam sample on NUC472

Dependencies:   Modbus nvt_rs485

NuWicam for NuMaker-PFM-NUC472 board. Please refer document before executing it. More details, please refer https://github.com/OpenNuvoton/NuMaker_NuWicam_Samples/

main.cpp@4:02c148438101, 2016-09-20 (annotated)

Committer:
wclin
Date:
Tue Sep 20 06:28:30 2016 +0000
Revision:
4:02c148438101
Parent:
2:60deb475f831 
Polling UART port in main thread.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wclin 0:084b94d2c1b5 1 /*
wclin 0:084b94d2c1b5 2 * The program is a sample code.
wclin 0:084b94d2c1b5 3 * It needs run with NuMaker NuWicam board.
wclin 0:084b94d2c1b5 4 */
wclin 0:084b94d2c1b5 5
wclin 0:084b94d2c1b5 6 /* ----------------------- System includes --------------------------------*/
wclin 0:084b94d2c1b5 7 #include "mbed.h"
wclin 0:084b94d2c1b5 8 #include "rtos.h"
wclin 0:084b94d2c1b5 9 /*----------------------- Modbus includes ----------------------------------*/
wclin 0:084b94d2c1b5 10 #include "mb.h"
wclin 0:084b94d2c1b5 11 #include "mbport.h"
wclin 0:084b94d2c1b5 12
wclin 0:084b94d2c1b5 13 /* ----------------------- Defines ------------------------------------------*/
wclin 0:084b94d2c1b5 14 // Sharing buffer index
wclin 0:084b94d2c1b5 15 enum {
wclin 0:084b94d2c1b5 16 eData_MBInCounter,
wclin 0:084b94d2c1b5 17 eData_MBOutCounter,
wclin 0:084b94d2c1b5 18 eData_MBError,
wclin 0:084b94d2c1b5 19 eData_DI,
wclin 0:084b94d2c1b5 20 eData_DO,
wclin 0:084b94d2c1b5 21 eData_RGB,
wclin 0:084b94d2c1b5 22 eData_MBResistorVar,
wclin 0:084b94d2c1b5 23 eData_TemperatureSensor,
wclin 0:084b94d2c1b5 24 eData_Cnt
wclin 0:084b94d2c1b5 25 } E_DATA_TYPE;
wclin 0:084b94d2c1b5 26
wclin 0:084b94d2c1b5 27 #define REG_INPUT_START 1
wclin 0:084b94d2c1b5 28 #define REG_INPUT_NREGS eData_Cnt
wclin 0:084b94d2c1b5 29 #define SLAVE_ID 0x01
wclin 0:084b94d2c1b5 30 /* ----------------------- Static variables ---------------------------------*/
wclin 0:084b94d2c1b5 31 static USHORT usRegInputStart = REG_INPUT_START;
wclin 0:084b94d2c1b5 32 static USHORT usRegInputBuf[REG_INPUT_NREGS];
wclin 0:084b94d2c1b5 33
wclin 0:084b94d2c1b5 34 DigitalOut led1(LED1); // For temperature worker.
wclin 0:084b94d2c1b5 35 DigitalOut led2(LED2); // For Modbus worker.
wclin 0:084b94d2c1b5 36 DigitalOut led3(LED3); // For Holder CB
wclin 0:084b94d2c1b5 37
wclin 0:084b94d2c1b5 38 AnalogIn LM35(A0);
wclin 0:084b94d2c1b5 39
wclin 0:084b94d2c1b5 40 #define DEF_LED_NUM 6
wclin 0:084b94d2c1b5 41 DigitalOut LED[DEF_LED_NUM] = { PF_9, PF_10, PC_10, PC_11, PA_10, PA_9 } ;
wclin 0:084b94d2c1b5 42
wclin 0:084b94d2c1b5 43
wclin 0:084b94d2c1b5 44 void light_leds()
wclin 0:084b94d2c1b5 45 {
wclin 0:084b94d2c1b5 46 int i=0;
wclin 0:084b94d2c1b5 47 USHORT usOutValue = ~usRegInputBuf[eData_DO];
wclin 0:084b94d2c1b5 48 for ( i=0; i<DEF_LED_NUM ; i++)
wclin 0:084b94d2c1b5 49 LED[i].write( (usOutValue&(0x1<<i)) >> i );
wclin 0:084b94d2c1b5 50 }
wclin 0:084b94d2c1b5 51
wclin 0:084b94d2c1b5 52 void get_temp(void)
wclin 0:084b94d2c1b5 53 {
wclin 0:084b94d2c1b5 54 float tempC, a[10], avg;
wclin 0:084b94d2c1b5 55 int i;
wclin 0:084b94d2c1b5 56 #define DEF_ADC_READTIMES 10
wclin 0:084b94d2c1b5 57 avg=0;
wclin 0:084b94d2c1b5 58 for(i=0;i<DEF_ADC_READTIMES;i++)
wclin 0:084b94d2c1b5 59 {
wclin 0:084b94d2c1b5 60 a[i] = LM35.read();
wclin 0:084b94d2c1b5 61 Thread::wait(1);
wclin 0:084b94d2c1b5 62 }
wclin 0:084b94d2c1b5 63
wclin 0:084b94d2c1b5 64 for ( i=0; i<DEF_ADC_READTIMES; i++ )
wclin 0:084b94d2c1b5 65 avg += a[i];
wclin 0:084b94d2c1b5 66
wclin 0:084b94d2c1b5 67 avg /= DEF_ADC_READTIMES;
wclin 2:60deb475f831 68 tempC=(avg*3.685503686*100);
wclin 0:084b94d2c1b5 69 usRegInputBuf[eData_TemperatureSensor] = (USHORT)tempC;
wclin 2:60deb475f831 70 //printf("[%s %d] %f %d\r\n", __func__, __LINE__, avg, usRegInputBuf[eData_TemperatureSensor] );
wclin 0:084b94d2c1b5 71 }
wclin 0:084b94d2c1b5 72
wclin 0:084b94d2c1b5 73 void worker_get_temperature(void const *args)
wclin 0:084b94d2c1b5 74 {
wclin 0:084b94d2c1b5 75 // Poll temperature sensor per 1 second.
wclin 0:084b94d2c1b5 76 while (true) {
wclin 0:084b94d2c1b5 77 get_temp();
wclin 0:084b94d2c1b5 78 led1 = !led1;
wclin 0:084b94d2c1b5 79 Thread::wait(1000);
wclin 0:084b94d2c1b5 80 }
wclin 0:084b94d2c1b5 81 }
wclin 0:084b94d2c1b5 82
wclin 0:084b94d2c1b5 83 void worker_uart(void const *args)
wclin 0:084b94d2c1b5 84 {
wclin 0:084b94d2c1b5 85 // For UART-SERIAL Tx/Rx Service.
wclin 2:60deb475f831 86 while (true)
wclin 0:084b94d2c1b5 87 xMBPortSerialPolling();
wclin 0:084b94d2c1b5 88 }
wclin 0:084b94d2c1b5 89
wclin 0:084b94d2c1b5 90 /* ----------------------- Start implementation -----------------------------*/
wclin 0:084b94d2c1b5 91 int
wclin 0:084b94d2c1b5 92 main( void )
wclin 0:084b94d2c1b5 93 {
wclin 0:084b94d2c1b5 94 eMBErrorCode eStatus;
wclin 0:084b94d2c1b5 95 Thread temperature_thread(worker_get_temperature);
wclin 4:02c148438101 96 //Thread uart_thread(worker_uart);
wclin 0:084b94d2c1b5 97
wclin 0:084b94d2c1b5 98 // Initialise some registers
wclin 0:084b94d2c1b5 99 for (int i=0; i<REG_INPUT_NREGS; i++)
wclin 0:084b94d2c1b5 100 usRegInputBuf[i] = 0x0;
wclin 2:60deb475f831 101
wclin 2:60deb475f831 102 light_leds(); // Control LEDs
wclin 2:60deb475f831 103
wclin 0:084b94d2c1b5 104 /* Enable the Modbus Protocol Stack. */
wclin 0:084b94d2c1b5 105 if ( (eStatus = eMBInit( MB_RTU, SLAVE_ID, 0, 115200, MB_PAR_NONE )) != MB_ENOERR )
wclin 0:084b94d2c1b5 106 goto FAIL_MB;
wclin 0:084b94d2c1b5 107 else if ( (eStatus = eMBEnable( ) ) != MB_ENOERR )
wclin 0:084b94d2c1b5 108 goto FAIL_MB_1;
wclin 0:084b94d2c1b5 109 else {
wclin 0:084b94d2c1b5 110 for( ;; )
wclin 0:084b94d2c1b5 111 {
wclin 4:02c148438101 112 xMBPortSerialPolling();
wclin 0:084b94d2c1b5 113 if ( eMBPoll( ) != MB_ENOERR ) break;
wclin 2:60deb475f831 114 }
wclin 0:084b94d2c1b5 115 }
wclin 2:60deb475f831 116
wclin 0:084b94d2c1b5 117 FAIL_MB_1:
wclin 0:084b94d2c1b5 118 eMBClose();
wclin 2:60deb475f831 119
wclin 0:084b94d2c1b5 120 FAIL_MB:
wclin 0:084b94d2c1b5 121 for( ;; )
wclin 0:084b94d2c1b5 122 {
wclin 0:084b94d2c1b5 123 led2 = !led2;
wclin 0:084b94d2c1b5 124 Thread::wait(200);
wclin 2:60deb475f831 125 }
wclin 0:084b94d2c1b5 126 }
wclin 0:084b94d2c1b5 127
wclin 0:084b94d2c1b5 128
wclin 0:084b94d2c1b5 129
wclin 0:084b94d2c1b5 130
wclin 0:084b94d2c1b5 131
wclin 0:084b94d2c1b5 132
wclin 0:084b94d2c1b5 133
wclin 0:084b94d2c1b5 134
wclin 0:084b94d2c1b5 135
wclin 0:084b94d2c1b5 136
wclin 0:084b94d2c1b5 137
wclin 0:084b94d2c1b5 138
wclin 0:084b94d2c1b5 139
wclin 0:084b94d2c1b5 140 eMBErrorCode
wclin 0:084b94d2c1b5 141 eMBRegInputCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs )
wclin 0:084b94d2c1b5 142 {
wclin 0:084b94d2c1b5 143 eMBErrorCode eStatus = MB_ENOERR;
wclin 0:084b94d2c1b5 144 int iRegIndex;
wclin 0:084b94d2c1b5 145
wclin 0:084b94d2c1b5 146 if( ( usAddress >= REG_INPUT_START )
wclin 0:084b94d2c1b5 147 && ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
wclin 0:084b94d2c1b5 148 {
wclin 0:084b94d2c1b5 149 iRegIndex = ( int )( usAddress - usRegInputStart );
wclin 0:084b94d2c1b5 150 while( usNRegs > 0 )
wclin 0:084b94d2c1b5 151 {
wclin 0:084b94d2c1b5 152 *pucRegBuffer++ =
wclin 0:084b94d2c1b5 153 ( unsigned char )( usRegInputBuf[iRegIndex] >> 8 );
wclin 0:084b94d2c1b5 154 *pucRegBuffer++ =
wclin 0:084b94d2c1b5 155 ( unsigned char )( usRegInputBuf[iRegIndex] & 0xFF );
wclin 0:084b94d2c1b5 156 iRegIndex++;
wclin 0:084b94d2c1b5 157 usNRegs--;
wclin 0:084b94d2c1b5 158 }
wclin 0:084b94d2c1b5 159 }
wclin 0:084b94d2c1b5 160 else
wclin 0:084b94d2c1b5 161 {
wclin 0:084b94d2c1b5 162 eStatus = MB_ENOREG;
wclin 0:084b94d2c1b5 163 }
wclin 0:084b94d2c1b5 164
wclin 0:084b94d2c1b5 165 return eStatus;
wclin 0:084b94d2c1b5 166 }
wclin 0:084b94d2c1b5 167
wclin 0:084b94d2c1b5 168 eMBErrorCode
wclin 0:084b94d2c1b5 169 eMBRegHoldingCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNRegs, eMBRegisterMode eMode )
wclin 0:084b94d2c1b5 170 {
wclin 0:084b94d2c1b5 171 eMBErrorCode eStatus = MB_ENOERR;
wclin 0:084b94d2c1b5 172 int iRegIndex;
wclin 2:60deb475f831 173
wclin 0:084b94d2c1b5 174 usRegInputBuf[eData_MBInCounter]++;
wclin 0:084b94d2c1b5 175 usRegInputBuf[eData_MBOutCounter]++;
wclin 0:084b94d2c1b5 176
wclin 0:084b94d2c1b5 177 if (eMode == MB_REG_READ)
wclin 0:084b94d2c1b5 178 {
wclin 0:084b94d2c1b5 179 if( ( usAddress >= REG_INPUT_START )
wclin 0:084b94d2c1b5 180 && ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
wclin 0:084b94d2c1b5 181 {
wclin 0:084b94d2c1b5 182 iRegIndex = ( int )( usAddress - usRegInputStart );
wclin 0:084b94d2c1b5 183 while( usNRegs > 0 )
wclin 0:084b94d2c1b5 184 {
wclin 0:084b94d2c1b5 185 *pucRegBuffer++ =
wclin 0:084b94d2c1b5 186 ( unsigned char )( usRegInputBuf[iRegIndex] >> 8 );
wclin 0:084b94d2c1b5 187 *pucRegBuffer++ =
wclin 0:084b94d2c1b5 188 ( unsigned char )( usRegInputBuf[iRegIndex] & 0xFF );
wclin 0:084b94d2c1b5 189 iRegIndex++;
wclin 0:084b94d2c1b5 190 usNRegs--;
wclin 0:084b94d2c1b5 191 }
wclin 0:084b94d2c1b5 192 }
wclin 0:084b94d2c1b5 193 }
wclin 0:084b94d2c1b5 194
wclin 0:084b94d2c1b5 195 if (eMode == MB_REG_WRITE)
wclin 0:084b94d2c1b5 196 {
wclin 0:084b94d2c1b5 197 if( ( usAddress >= REG_INPUT_START )
wclin 0:084b94d2c1b5 198 && ( usAddress + usNRegs <= REG_INPUT_START + REG_INPUT_NREGS ) )
wclin 0:084b94d2c1b5 199 {
wclin 0:084b94d2c1b5 200 iRegIndex = ( int )( usAddress - usRegInputStart );
wclin 0:084b94d2c1b5 201 while( usNRegs > 0 )
wclin 0:084b94d2c1b5 202 {
wclin 0:084b94d2c1b5 203 usRegInputBuf[iRegIndex] = ((unsigned int) *pucRegBuffer << 8) | ((unsigned int) *(pucRegBuffer+1));
wclin 0:084b94d2c1b5 204 pucRegBuffer+=2;
wclin 0:084b94d2c1b5 205 iRegIndex++;
wclin 0:084b94d2c1b5 206 usNRegs--;
wclin 0:084b94d2c1b5 207 }
wclin 0:084b94d2c1b5 208 light_leds(); // Control LEDs
wclin 0:084b94d2c1b5 209 }
wclin 0:084b94d2c1b5 210 }
wclin 0:084b94d2c1b5 211
wclin 0:084b94d2c1b5 212 led3=!led3;
wclin 0:084b94d2c1b5 213
wclin 0:084b94d2c1b5 214 return eStatus;
wclin 0:084b94d2c1b5 215 }
wclin 0:084b94d2c1b5 216
wclin 0:084b94d2c1b5 217
wclin 0:084b94d2c1b5 218 eMBErrorCode
wclin 0:084b94d2c1b5 219 eMBRegCoilsCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNCoils,
wclin 0:084b94d2c1b5 220 eMBRegisterMode eMode )
wclin 0:084b94d2c1b5 221 {
wclin 0:084b94d2c1b5 222 return MB_ENOREG;
wclin 0:084b94d2c1b5 223 }
wclin 0:084b94d2c1b5 224
wclin 0:084b94d2c1b5 225 eMBErrorCode
wclin 0:084b94d2c1b5 226 eMBRegDiscreteCB( UCHAR * pucRegBuffer, USHORT usAddress, USHORT usNDiscrete )
wclin 0:084b94d2c1b5 227 {
wclin 0:084b94d2c1b5 228 return MB_ENOREG;
wclin 0:084b94d2c1b5 229 }