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@@ -0,0 +1,562 @@
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1
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+#include "cmPrefix.h"
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2
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+#include "cmGlobal.h"
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3
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+#include "cmRpt.h"
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4
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+#include "cmErr.h"
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5
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+#include "cmCtx.h"
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6
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+#include "cmMem.h"
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+#include "cmMallocDebug.h"
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8
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+#include "cmSerialPort.h"
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9
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+#include "cmThread.h"
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10
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+
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11
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+#include <poll.h>
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12
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+#include <termios.h>
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13
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+#include <unistd.h> // close()
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14
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+#include <fcntl.h> // O_RDWR
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15
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+#include <sys/ioctl.h> // TIOCEXCL
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+
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+typedef struct cmSerialPort_str
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+{
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+ cmErr_t _err;
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+ cmThreadH_t _thH;
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+ const char* _deviceStr;
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+ int _deviceH;
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23
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+ unsigned _baudRate;
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+ unsigned _cfgFlags;
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+ cmSeCallbackFunc_t _cbFunc;
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+ void* _cbArg;
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+ struct termios _ttyAttrs;
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+ struct pollfd _pollfd;
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+ unsigned _pollPeriodMs;
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+} cmSerialPort_t;
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+
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32
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+cmSerialPort_t* _cmSePtrFromHandle( cmSeH_t h )
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+{
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34
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+ cmSerialPort_t* p = (cmSerialPort_t*)h.h;
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+ assert(p!=NULL);
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+ return p;
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+}
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+
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+void _cmSeSetClosedState( cmSerialPort_t* p )
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+{
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+ if( p->_deviceStr != NULL )
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42
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+ cmMemFree((char*)(p->_deviceStr));
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+
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+ p->_deviceH = -1;
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+ p->_deviceStr = NULL;
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+ p->_baudRate = 0;
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+ p->_cfgFlags = 0;
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48
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+ p->_cbFunc = NULL;
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+ p->_cbArg = NULL;
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50
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+
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+}
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+
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+cmSeRC_t _cmSeGetAttributes( cmSerialPort_t* p, struct termios* attr )
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+{
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+ if( tcgetattr(p->_deviceH, attr) == -1 )
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56
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+ return cmErrSysMsg(&p->_err,kGetAttrFailSeRC,errno,"Error getting tty attributes from %s.",p->_deviceStr);
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+
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+ return kOkSeRC;
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+}
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+
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61
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+cmSeRC_t _cmSePoll( cmSerialPort_t* p, unsigned timeOutMs )
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+{
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63
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+ cmSeRC_t rc = kOkSeRC;
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+ int sysRC;
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+
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+ if((sysRC = poll(&p->_pollfd,1,timeOutMs)) == 0)
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+ rc = kTimeOutSeRC;
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+ else
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+ {
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+ if( sysRC < 0 )
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+ rc = cmErrSysMsg(&p->_err,kReadFailSeRC,errno,"Poll failed on serial port.");
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72
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+ }
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+
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+ return rc;
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+
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+}
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+
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78
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+bool _cmSeThreadFunc(void* param)
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+{
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80
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+ cmSerialPort_t* p = (cmSerialPort_t*)param;
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+ cmSeH_t h;
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82
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+ h.h = p;
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83
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+ unsigned readN;
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84
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+ if( cmSeIsOpen(h) )
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85
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+ cmSeReceiveCbTimeOut(h,p->_pollPeriodMs,&readN);
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86
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+
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87
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+
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88
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+
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+ return true;
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+}
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+
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92
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+
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93
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+cmSeRC_t _cmSeDestroy( cmSerialPort_t* p )
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+{
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+ cmSeRC_t rc = kOkSeRC;
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+
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+
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98
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+ // stop the thread first
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+ if( cmThreadDestroy(&p->_thH) != kOkThRC )
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+ {
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101
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+ rc = cmErrMsg(&p->_err,kThreadErrSeRC,"Thread destroy failed.");
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102
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+ goto errLabel;
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+ }
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104
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+
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105
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+ // Block until all written output has been sent from the device.
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+ // Note that this call is simply passed on to the serial device driver.
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107
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+ // See tcsendbreak(3) ("man 3 tcsendbreak") for details.
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108
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+ if (tcdrain(p->_deviceH) == -1)
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109
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+ {
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+ rc = cmErrSysMsg(&p->_err,kFlushFailSeRC,errno,"Error waiting for serial device '%s' to drain.", p->_deviceStr );
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111
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+ goto errLabel;
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112
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+ }
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+
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114
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+ // It is good practice to reset a serial port back to the state in
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115
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+ // which you found it. This is why we saved the original termios struct
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116
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+ // The constant TCSANOW (defined in termios.h) indicates that
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117
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+ // the change should take effect immediately.
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118
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+
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+ if (tcsetattr(p->_deviceH, TCSANOW, &p->_ttyAttrs) == -1)
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120
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+ {
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121
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+ rc = cmErrSysMsg(&p->_err,kSetAttrFailSeRC,errno,"Error resetting tty attributes on serial device '%s'.",p->_deviceStr);
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122
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+ goto errLabel;
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123
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+ }
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+
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+ if( p->_deviceH != -1 )
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+ {
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+ if( close(p->_deviceH ) != 0 )
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128
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+ {
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129
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+ rc = cmErrSysMsg(&p->_err,kCloseFailSeRC,errno,"Port close failed on serial dvice '%s'.", p->_deviceStr);
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+ goto errLabel;
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131
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+ }
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132
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+
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133
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+ _cmSeSetClosedState(p);
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+ }
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135
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+
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136
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+ cmMemPtrFree(&p);
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+
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138
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+ errLabel:
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139
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+ return rc;
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140
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+}
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141
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+
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142
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+
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143
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+cmSeH_t cmSeCreate( cmCtx_t* ctx, cmSeH_t* hp, const char* deviceStr, unsigned baudRate, unsigned cfgFlags, cmSeCallbackFunc_t cbFunc, void* cbArg, unsigned pollPeriodMs )
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144
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+{
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145
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+ cmSeRC_t rc = kOkSeRC;
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146
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+ struct termios options;
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147
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+ cmSeH_t h;
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148
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+
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149
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+ // if the port is already open then close it
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150
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+ if((rc = cmSeDestroy(hp)) != kOkSeRC )
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151
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+ return *hp;
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152
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+
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153
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+ cmSerialPort_t* p = cmMemAllocZ(cmSerialPort_t,1);
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154
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+
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155
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+ cmErrSetup(&p->_err,&ctx->rpt,"Serial Port");
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156
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+
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157
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+ p->_deviceH = -1;
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158
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+
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159
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+ // open the port
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+ if( (p->_deviceH = open(deviceStr, O_RDWR | O_NOCTTY | O_NONBLOCK)) == -1 )
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+ {
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162
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+ rc = cmErrSysMsg(&p->_err,kOpenFailSeRC,errno,"Error opening serial '%s'",cmStringNullGuard(deviceStr));
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163
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+ goto errLabel;;
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164
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+ }
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+
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166
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+ // Note that open() follows POSIX semantics: multiple open() calls to
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167
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+ // the same file will succeed unless the TIOCEXCL ioctl is issued.
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168
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+ // This will prevent additional opens except by root-owned processes.
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169
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+ // See tty(4) ("man 4 tty") and ioctl(2) ("man 2 ioctl") for details.
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170
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+
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171
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+ if( ioctl(p->_deviceH, TIOCEXCL) == -1 )
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172
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+ {
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173
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+ rc = cmErrSysMsg(&p->_err,kResourceNotAvailableSeRC,errno,"The serial device '%s' is already in use.", cmStringNullGuard(deviceStr));
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+ goto errLabel;
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175
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+ }
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+
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177
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+
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178
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+ // Now that the device is open, clear the O_NONBLOCK flag so
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179
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+ // subsequent I/O will block.
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180
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+ // See fcntl(2) ("man 2 fcntl") for details.
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181
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+ /*
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182
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+ if (fcntl(_deviceH, F_SETFL, 0) == -1)
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183
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+
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184
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+ {
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185
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+ _error("Error clearing O_NONBLOCK %s - %s(%d).", pr.devFilePath.c_str(), strerror(errno), errno);
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186
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+ goto errLabel;
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187
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+ }
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188
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+ */
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189
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+
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190
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+ // Get the current options and save them so we can restore the
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191
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+ // default settings later.
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192
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+ if (tcgetattr(p->_deviceH, &p->_ttyAttrs) == -1)
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193
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+ {
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194
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+ rc = cmErrSysMsg(&p->_err,kGetAttrFailSeRC,errno,"Error getting tty attributes from the device '%s'.",deviceStr);
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195
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+ goto errLabel;
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196
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+ }
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197
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+
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198
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+
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199
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+ // The serial port attributes such as timeouts and baud rate are set by
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200
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+ // modifying the termios structure and then calling tcsetattr to
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201
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+ // cause the changes to take effect. Note that the
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202
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+ // changes will not take effect without the tcsetattr() call.
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203
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+ // See tcsetattr(4) ("man 4 tcsetattr") for details.
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204
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+ options = p->_ttyAttrs;
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205
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+
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206
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+
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207
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+ // Set raw input (non-canonical) mode, with reads blocking until either
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208
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+ // a single character has been received or a 100ms timeout expires.
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209
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+ // See tcsetattr(4) ("man 4 tcsetattr") and termios(4) ("man 4 termios")
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210
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+ // for details.
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211
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+ cfmakeraw(&options);
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212
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+ options.c_cc[VMIN] = 1;
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213
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+ options.c_cc[VTIME] = 1;
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214
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+
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215
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+
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216
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+ // The baud rate, word length, and handshake options can be set as follows:
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217
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+
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218
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+
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219
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+ // set baud rate
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220
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+ cfsetspeed(&options, baudRate);
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221
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+
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222
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+ options.c_cflag |= CREAD | CLOCAL; // ignore modem controls
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223
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+
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224
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+ // set data word size
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225
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+ cmClrBits(options.c_cflag, CSIZE); // clear the word size bits
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226
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+ cmEnaBits(options.c_cflag, CS5, cmIsFlag(cfgFlags, kDataBits5SeFl));
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227
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+ cmEnaBits(options.c_cflag, CS6, cmIsFlag(cfgFlags, kDataBits6SeFl));
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228
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+ cmEnaBits(options.c_cflag, CS7, cmIsFlag(cfgFlags, kDataBits7SeFl));
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229
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+ cmEnaBits(options.c_cflag, CS8, cmIsFlag(cfgFlags, kDataBits8SeFl));
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230
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+
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231
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+ cmClrBits(options.c_cflag, PARENB); // assume no-parity
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232
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+
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233
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+ // if the odd or even parity flag is set
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234
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+ if( cmIsFlag( cfgFlags, kEvenParitySeFl) || cmIsFlag( cfgFlags, kOddParitySeFl ) )
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235
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+ {
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236
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+ cmSetBits(options.c_cflag, PARENB);
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237
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+
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238
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+ if( cmIsFlag(cfgFlags, kOddParitySeFl ) )
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239
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+ cmSetBits( options.c_cflag, PARODD);
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240
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+ }
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241
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+
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242
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+ // set two stop bits
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243
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+ cmEnaBits( options.c_cflag, CSTOPB, cmIsFlag(cfgFlags, k2StopBitSeFl));
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244
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+
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245
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+
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246
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+ // set hardware flow control
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247
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+ //cmEnaBits(options.c_cflag, CCTS_OFLOW, cmIsFlag(cfgFlags, kCTS_OutFlowCtlFl));
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248
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+ //cmEnaBits(options.c_cflag, CRTS_IFLOW, cmIsFlag(cfgFlags, kRTS_InFlowCtlFl));
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249
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+ //cmEnaBits(options.c_cflag, CDTR_IFLOW, cmIsFlag(cfgFlags, kDTR_InFlowCtlFl));
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250
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+ //cmEnaBits(options.c_cflag, CDSR_OFLOW, cmIsFlag(cfgFlags, kDSR_OutFlowCtlFl));
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251
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+ //cmEnaBits(options.c_cflag, CCAR_OFLOW, cmIsFlag(cfgFlags, kDCD_OutFlowCtlFl));
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252
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+
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253
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+ cmClrBits(options.c_cflag,CRTSCTS); // turn-off hardware flow control
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254
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+
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255
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+ // 7 bit words, enable even parity, CTS out ctl flow, RTS in ctl flow
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256
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+ // note: set PARODD and PARENB to enable odd parity)
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257
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+ //options.c_cflag |= (CS7 | PARENB | CCTS_OFLOW | CRTS_IFLOW );
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258
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+
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259
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+ // Cause the new options to take effect immediately.
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260
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+ if (tcsetattr(p->_deviceH, TCSANOW, &options) == -1)
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261
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+ {
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262
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+
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263
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+ rc = cmErrSysMsg(&p->_err,kSetAttrFailSeRC,errno,"Error setting tty attributes on serial device %.", deviceStr);
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264
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+ goto errLabel;
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265
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+ }
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266
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+
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267
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+ memset(&p->_pollfd,0,sizeof(p->_pollfd));
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268
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+ p->_pollfd.fd = p->_deviceH;
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269
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+ p->_pollfd.events = POLLIN;
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270
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+
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271
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+ p->_deviceStr = cmMemAllocStr( deviceStr );
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272
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+ p->_baudRate = baudRate;
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273
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+ p->_cfgFlags = cfgFlags;
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274
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+ p->_cbFunc = cbFunc;
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275
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+ p->_cbArg = cbArg;
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276
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+ p->_pollPeriodMs = pollPeriodMs;
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277
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+
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278
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+ // create the listening thread
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279
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+ if( cmThreadCreate( &p->_thH, _cmSeThreadFunc, p, &ctx->rpt) != kOkThRC )
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280
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+ {
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281
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+ rc = cmErrMsg(&p->_err,kThreadErrSeRC,"Thread initialization failed.");
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282
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+ goto errLabel;
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283
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+ }
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|
284
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+
|
|
285
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+ if( cmThreadPause(p->_thH,0) != kOkThRC )
|
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286
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+ {
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287
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+ rc = cmErrMsg(&p->_err,kThreadErrSeRC,0,"Thread start failed.");
|
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288
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+ goto errLabel;
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289
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+ }
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|
290
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+
|
|
291
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+ if( hp != NULL )
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292
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+ hp->h = p;
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293
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+ else
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294
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+ h.h = p;
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295
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+
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|
296
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+ errLabel:
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297
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+ if( rc != kOkSeRC )
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|
298
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+ {
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|
299
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+ _cmSeDestroy(p);
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|
300
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+ h.h = NULL;
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|
301
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+ }
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|
302
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+
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|
303
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+ return hp != NULL ? *hp : h;
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304
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+
|
|
305
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+}
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|
306
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+
|
|
307
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+cmSeRC_t cmSeDestroy(cmSeH_t* hp )
|
|
308
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+{
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|
309
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+ cmSeRC_t rc = kOkSeRC;
|
|
310
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+
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|
311
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+ if( hp==NULL || !cmSeIsOpen(*hp) )
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312
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+ return kOkSeRC;
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313
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+
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|
314
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+ cmSerialPort_t* p = _cmSePtrFromHandle(*hp);
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315
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+
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316
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+ if((rc = _cmSeDestroy(p)) != kOkSeRC )
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317
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+ return rc;
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318
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+
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319
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+ hp->h = NULL;
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|
320
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+
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|
321
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+ return rc;
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|
322
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+}
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|
323
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+
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|
324
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+bool cmSeIsOpen( cmSeH_t h)
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|
325
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+{
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|
326
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+ if( h.h == NULL )
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|
327
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+ return false;
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|
328
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+
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|
329
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+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
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|
330
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+ return p->_deviceH != -1;
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|
331
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+}
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|
332
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+
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|
333
|
+cmSeRC_t cmSeSend( cmSeH_t h, const void* byteA, unsigned byteN )
|
|
334
|
+{
|
|
335
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+ cmSeRC_t rc = kOkSeRC;
|
|
336
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+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
337
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+
|
|
338
|
+ if( !cmSeIsOpen(h) )
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|
339
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+ return cmErrWarnMsg( &p->_err, kResourceNotAvailableSeRC, "An attempt was made to transmit from a closed serial port.");
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|
340
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+
|
|
341
|
+ if( byteN == 0 )
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|
342
|
+ return rc;
|
|
343
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+
|
|
344
|
+ // implement a non blocking write - if less than all the bytes were written then iterate
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|
345
|
+ unsigned i = 0;
|
|
346
|
+ do
|
|
347
|
+ {
|
|
348
|
+ int n = 0;
|
|
349
|
+ if((n = write( p->_deviceH, ((char*)byteA)+i, byteN-i )) == -1 )
|
|
350
|
+ {
|
|
351
|
+ rc = cmErrSysMsg(&p->_err,kWriteFailSeRC,errno,"Write failed on serial port '%s'.", p->_deviceStr );
|
|
352
|
+ break;
|
|
353
|
+ }
|
|
354
|
+
|
|
355
|
+ i += n;
|
|
356
|
+
|
|
357
|
+
|
|
358
|
+ }while( i<byteN );
|
|
359
|
+
|
|
360
|
+ return rc;
|
|
361
|
+
|
|
362
|
+}
|
|
363
|
+
|
|
364
|
+
|
|
365
|
+cmSeRC_t cmSeReceiveCbNb( cmSeH_t h, unsigned* readN_Ref)
|
|
366
|
+{
|
|
367
|
+ cmSeRC_t rc = kOkSeRC;
|
|
368
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
369
|
+ const unsigned bufN = 512;
|
|
370
|
+ char buf[ bufN ];
|
|
371
|
+
|
|
372
|
+ if( readN_Ref != NULL)
|
|
373
|
+ *readN_Ref = 0;
|
|
374
|
+
|
|
375
|
+ if((rc = cmSeReceiveNb(h,buf,bufN,readN_Ref)) == kOkSeRC )
|
|
376
|
+ if( readN_Ref > 0 && p->_cbFunc != NULL )
|
|
377
|
+ p->_cbFunc( p->_cbArg, buf, *readN_Ref );
|
|
378
|
+
|
|
379
|
+ return rc;
|
|
380
|
+
|
|
381
|
+}
|
|
382
|
+
|
|
383
|
+cmSeRC_t cmSeReceiveCbTimeOut( cmSeH_t h, unsigned timeOutMs, unsigned* readN_Ref)
|
|
384
|
+{
|
|
385
|
+ cmSeRC_t rc;
|
|
386
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
387
|
+
|
|
388
|
+ if((rc = _cmSePoll(p,timeOutMs)) == kOkSeRC )
|
|
389
|
+ rc = cmSeReceiveCbNb(h,readN_Ref);
|
|
390
|
+ return rc;
|
|
391
|
+
|
|
392
|
+}
|
|
393
|
+
|
|
394
|
+cmSeRC_t cmSeReceiveNb( cmSeH_t h, void* buf, unsigned bufN, unsigned* readN_Ref)
|
|
395
|
+{
|
|
396
|
+ cmSeRC_t rc = kOkSeRC;
|
|
397
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
398
|
+
|
|
399
|
+ if( readN_Ref != NULL )
|
|
400
|
+ *readN_Ref = 0;
|
|
401
|
+
|
|
402
|
+ if( !cmSeIsOpen(h) )
|
|
403
|
+ return cmErrWarnMsg(&p->_err, kResourceNotAvailableSeRC, "An attempt was made to read from a closed serial port.");
|
|
404
|
+
|
|
405
|
+ int n = 0;
|
|
406
|
+
|
|
407
|
+ // if attempt to read the port succeeded ...
|
|
408
|
+ if((n =read( p->_deviceH, buf, bufN )) != -1 )
|
|
409
|
+ *readN_Ref = n;
|
|
410
|
+ else
|
|
411
|
+ {
|
|
412
|
+ // ... or failed and it wasn't because the port was empty
|
|
413
|
+ if( errno != EAGAIN)
|
|
414
|
+ rc = cmErrSysMsg(&p->_err,kReadFailSeRC,errno,"An attempt to read the serial port '%s' failed.", p->_deviceStr );
|
|
415
|
+ }
|
|
416
|
+
|
|
417
|
+ return rc;
|
|
418
|
+}
|
|
419
|
+
|
|
420
|
+cmSeRC_t cmSeReceive( cmSeH_t h, void* buf, unsigned bufByteN, unsigned timeOutMs, unsigned* readN_Ref )
|
|
421
|
+{
|
|
422
|
+ cmSeRC_t rc = kOkSeRC;
|
|
423
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
424
|
+
|
|
425
|
+ if((rc = _cmSePoll(p,timeOutMs)) == kOkSeRC )
|
|
426
|
+ rc = cmSeReceiveNb(h,buf,bufByteN,readN_Ref);
|
|
427
|
+
|
|
428
|
+ return rc;
|
|
429
|
+}
|
|
430
|
+
|
|
431
|
+const char* cmSeDevice( cmSeH_t h)
|
|
432
|
+{
|
|
433
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
434
|
+ return p->_deviceStr;
|
|
435
|
+}
|
|
436
|
+
|
|
437
|
+unsigned cmSeBaudRate( cmSeH_t h)
|
|
438
|
+{
|
|
439
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
440
|
+ return p->_baudRate;
|
|
441
|
+}
|
|
442
|
+
|
|
443
|
+unsigned cmSeCfgFlags( cmSeH_t h)
|
|
444
|
+{
|
|
445
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
446
|
+ return p->_cfgFlags;
|
|
447
|
+}
|
|
448
|
+
|
|
449
|
+unsigned cmSeReadInBaudRate( cmSeH_t h )
|
|
450
|
+{
|
|
451
|
+ struct termios attr;
|
|
452
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
453
|
+
|
|
454
|
+ if((_cmSeGetAttributes(p,&attr)) != kOkSeRC )
|
|
455
|
+ return 0;
|
|
456
|
+
|
|
457
|
+ return cfgetispeed(&attr);
|
|
458
|
+
|
|
459
|
+}
|
|
460
|
+
|
|
461
|
+unsigned cmSeReadOutBaudRate( cmSeH_t h)
|
|
462
|
+{
|
|
463
|
+ struct termios attr;
|
|
464
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
465
|
+
|
|
466
|
+ if((_cmSeGetAttributes(p,&attr)) != kOkSeRC )
|
|
467
|
+ return 0;
|
|
468
|
+
|
|
469
|
+ return cfgetospeed(&attr);
|
|
470
|
+
|
|
471
|
+}
|
|
472
|
+
|
|
473
|
+unsigned cmSeReadCfgFlags( cmSeH_t h)
|
|
474
|
+{
|
|
475
|
+ struct termios attr;
|
|
476
|
+ unsigned result = 0;
|
|
477
|
+ cmSerialPort_t* p = _cmSePtrFromHandle(h);
|
|
478
|
+
|
|
479
|
+ if((_cmSeGetAttributes(p,&attr)) == false )
|
|
480
|
+ return 0;
|
|
481
|
+
|
|
482
|
+ switch( attr.c_cflag & CSIZE )
|
|
483
|
+ {
|
|
484
|
+ case CS5:
|
|
485
|
+ cmSetBits( result, kDataBits5SeFl);
|
|
486
|
+ break;
|
|
487
|
+
|
|
488
|
+ case CS6:
|
|
489
|
+ cmSetBits( result, kDataBits6SeFl );
|
|
490
|
+ break;
|
|
491
|
+
|
|
492
|
+ case CS7:
|
|
493
|
+ cmSetBits( result, kDataBits7SeFl);
|
|
494
|
+ break;
|
|
495
|
+
|
|
496
|
+ case CS8:
|
|
497
|
+ cmSetBits( result, kDataBits8SeFl);
|
|
498
|
+ break;
|
|
499
|
+ }
|
|
500
|
+
|
|
501
|
+ cmEnaBits( result, k2StopBitSeFl, cmIsFlag( attr.c_cflag, CSTOPB ));
|
|
502
|
+ cmEnaBits( result, k1StopBitSeFl, !cmIsFlag( attr.c_cflag, CSTOPB ));
|
|
503
|
+
|
|
504
|
+ if( cmIsFlag( attr.c_cflag, PARENB ) )
|
|
505
|
+ {
|
|
506
|
+ cmEnaBits( result, kOddParitySeFl, cmIsFlag( attr.c_cflag, PARODD ));
|
|
507
|
+ cmEnaBits( result, kEvenParitySeFl, !cmIsFlag( attr.c_cflag, PARODD ));
|
|
508
|
+ }
|
|
509
|
+
|
|
510
|
+ return result;
|
|
511
|
+
|
|
512
|
+}
|
|
513
|
+
|
|
514
|
+
|
|
515
|
+//====================================================================================================
|
|
516
|
+//
|
|
517
|
+//
|
|
518
|
+
|
|
519
|
+
|
|
520
|
+void _cmSePortTestCb( void* arg, const void* byteA, unsigned byteN )
|
|
521
|
+{
|
|
522
|
+ const char* text = (const char*)byteA;
|
|
523
|
+
|
|
524
|
+ for(unsigned i=0; i<byteN; ++i)
|
|
525
|
+ printf("%c:%i ",text[i],(int)text[i]);
|
|
526
|
+
|
|
527
|
+ if( byteN )
|
|
528
|
+ fflush(stdout);
|
|
529
|
+}
|
|
530
|
+
|
|
531
|
+cmSeRC_t cmSePortTest(cmCtx_t* ctx)
|
|
532
|
+{
|
|
533
|
+ // Use this test an Arduino running study/serial/arduino_xmt_rcv/main.c
|
|
534
|
+ cmSeRC_t rc = kOkSeRC;
|
|
535
|
+ const char* device = "/dev/ttyACM0";
|
|
536
|
+ unsigned baud = 38400;
|
|
537
|
+ unsigned serialCfgFlags = kDefaultCfgSeFlags;
|
|
538
|
+ unsigned pollPeriodMs = 50;
|
|
539
|
+ cmSeH_t h;
|
|
540
|
+
|
|
541
|
+ h.h = NULL;
|
|
542
|
+
|
|
543
|
+ h = cmSeCreate(ctx,&h,device,baud,serialCfgFlags,_cmSePortTestCb,NULL,pollPeriodMs);
|
|
544
|
+
|
|
545
|
+ bool quitFl = false;
|
|
546
|
+ printf("q=quit\n");
|
|
547
|
+ while(!quitFl)
|
|
548
|
+ {
|
|
549
|
+ char c = getchar();
|
|
550
|
+
|
|
551
|
+ if( c == 'q')
|
|
552
|
+ quitFl = true;
|
|
553
|
+ else
|
|
554
|
+ if( '0' <= c && c <= 'z' )
|
|
555
|
+ cmSeSend(h,&c,1);
|
|
556
|
+
|
|
557
|
+
|
|
558
|
+ }
|
|
559
|
+
|
|
560
|
+ cmSeDestroy(&h);
|
|
561
|
+ return rc;
|
|
562
|
+}
|