La Suno / Mbed 2 deprecated afero_poc15_180403

I2C hang recover function added

Dependencies:   UniGraphic mbed vt100

In this version, check_i2c_pins function was added in edge_mgr.cpp.

プログラムの起動時、I2Cモジュールを初期化する前に、I2Cに使用するピンの電位を確認し
もし一方でも Low に張り付いていた場合、SCL を GPIO 出力に設定して　
所定回数 (I2C_UNLOCK_TRIAL_CYCLE) 反転させることにより、疑似リセットクロックを生成します。

その後は、通常の起動手順に復帰し、以降はこれまでと同様の動作をします。

edge_sensor/edge_temp.cpp@0:d895cd1cd897, 2018-04-03 (annotated)

Committer:
Rhyme
Date:
Tue Apr 03 08:30:29 2018 +0000
Revision:
0:d895cd1cd897
Initial I2C Pin force reset function added

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rhyme 0:d895cd1cd897 1 #include "mbed.h"
Rhyme 0:d895cd1cd897 2 #include "LM75B.h"
Rhyme 0:d895cd1cd897 3 #include "edge_reset_mgr.h"
Rhyme 0:d895cd1cd897 4 #include "edge_sensor.h"
Rhyme 0:d895cd1cd897 5 #include "edge_temp.h"
Rhyme 0:d895cd1cd897 6 #include "edge_chart.h"
Rhyme 0:d895cd1cd897 7
Rhyme 0:d895cd1cd897 8 float *current_temp = 0 ;
Rhyme 0:d895cd1cd897 9
Rhyme 0:d895cd1cd897 10 edge_temp::edge_temp(LM75B *temp1, SMTC502AT *temp2, SMTC502AT *temp3, LM75B *temp4)
Rhyme 0:d895cd1cd897 11 {
Rhyme 0:d895cd1cd897 12 _temp1 = temp1 ;
Rhyme 0:d895cd1cd897 13 _temp2 = temp2 ;
Rhyme 0:d895cd1cd897 14 _temp3 = temp3 ;
Rhyme 0:d895cd1cd897 15 _temp4 = temp4 ;
Rhyme 0:d895cd1cd897 16 _ftemp[0] = _ftemp[1] = _ftemp[2] = _ftemp[3] = 0.0 ;
Rhyme 0:d895cd1cd897 17 _interval = 30 ;
Rhyme 0:d895cd1cd897 18 current_temp = &_ftemp[1] ; /* use before for current temp */
Rhyme 0:d895cd1cd897 19 }
Rhyme 0:d895cd1cd897 20
Rhyme 0:d895cd1cd897 21 edge_temp::~edge_temp(void)
Rhyme 0:d895cd1cd897 22 {
Rhyme 0:d895cd1cd897 23 if (_temp1) {
Rhyme 0:d895cd1cd897 24 delete _temp1 ;
Rhyme 0:d895cd1cd897 25 }
Rhyme 0:d895cd1cd897 26 if (_temp2) {
Rhyme 0:d895cd1cd897 27 delete _temp2 ;
Rhyme 0:d895cd1cd897 28 }
Rhyme 0:d895cd1cd897 29 if (_temp3) {
Rhyme 0:d895cd1cd897 30 delete _temp3 ;
Rhyme 0:d895cd1cd897 31 }
Rhyme 0:d895cd1cd897 32 if (_temp4) {
Rhyme 0:d895cd1cd897 33 delete _temp4 ;
Rhyme 0:d895cd1cd897 34 }
Rhyme 0:d895cd1cd897 35 }
Rhyme 0:d895cd1cd897 36
Rhyme 0:d895cd1cd897 37 void edge_temp::reset(void)
Rhyme 0:d895cd1cd897 38 {
Rhyme 0:d895cd1cd897 39 }
Rhyme 0:d895cd1cd897 40
Rhyme 0:d895cd1cd897 41 void edge_temp::prepare(void)
Rhyme 0:d895cd1cd897 42 {
Rhyme 0:d895cd1cd897 43 }
Rhyme 0:d895cd1cd897 44
Rhyme 0:d895cd1cd897 45 int edge_temp::sample(void)
Rhyme 0:d895cd1cd897 46 {
Rhyme 0:d895cd1cd897 47 int result ;
Rhyme 0:d895cd1cd897 48 if (_temp1) {
Rhyme 0:d895cd1cd897 49 result = _temp1->getTemp(&_ftemp[0]) ;
Rhyme 0:d895cd1cd897 50 }
Rhyme 0:d895cd1cd897 51 if (_temp2) {
Rhyme 0:d895cd1cd897 52 _ftemp[1] = _temp2->getTemp() ;
Rhyme 0:d895cd1cd897 53 }
Rhyme 0:d895cd1cd897 54 if (_temp3) {
Rhyme 0:d895cd1cd897 55 _ftemp[2] = _temp3->getTemp() ;
Rhyme 0:d895cd1cd897 56 }
Rhyme 0:d895cd1cd897 57 if (_temp4) {
Rhyme 0:d895cd1cd897 58 _temp4->getTemp(&_ftemp[3]) ;
Rhyme 0:d895cd1cd897 59 }
Rhyme 0:d895cd1cd897 60 _sampled_time = edge_time ;
Rhyme 0:d895cd1cd897 61 return( result ) ;
Rhyme 0:d895cd1cd897 62 }
Rhyme 0:d895cd1cd897 63
Rhyme 0:d895cd1cd897 64 int edge_temp::deliver(void)
Rhyme 0:d895cd1cd897 65 {
Rhyme 0:d895cd1cd897 66 int result ;
Rhyme 0:d895cd1cd897 67 char timestr[16] ;
Rhyme 0:d895cd1cd897 68
Rhyme 0:d895cd1cd897 69 print_time() ;
Rhyme 0:d895cd1cd897 70 printf(" temp: ") ;
Rhyme 0:d895cd1cd897 71 if (_temp1) {
Rhyme 0:d895cd1cd897 72 printf("LM75B1 = %.2f ", _ftemp[0]) ;
Rhyme 0:d895cd1cd897 73 }
Rhyme 0:d895cd1cd897 74 if (_temp2) {
Rhyme 0:d895cd1cd897 75 printf("before = %.2f ", _ftemp[1]) ;
Rhyme 0:d895cd1cd897 76 }
Rhyme 0:d895cd1cd897 77 if (_temp3) {
Rhyme 0:d895cd1cd897 78 printf("after = %.2f ", _ftemp[2]) ;
Rhyme 0:d895cd1cd897 79 }
Rhyme 0:d895cd1cd897 80 if (_temp4) {
Rhyme 0:d895cd1cd897 81 printf("LM75B2 = %.2f ", _ftemp[3]) ;
Rhyme 0:d895cd1cd897 82 }
Rhyme 0:d895cd1cd897 83 printf("\n") ;
Rhyme 0:d895cd1cd897 84 time2seq(_sampled_time, timestr) ;
Rhyme 0:d895cd1cd897 85 sprintf(_str_buf,
Rhyme 0:d895cd1cd897 86 "{\"DEVICE\":\"TEMP04\",\"VAL_1\":\"%.1f\",\"VAL_2\":\"%.1f\",\"VAL_3\":\"%.1f\",\"T\":\"%s\",\"E\":\"%d\"}",
Rhyme 0:d895cd1cd897 87 _ftemp[0], _ftemp[1], _ftemp[2], timestr, _error_count) ;
Rhyme 0:d895cd1cd897 88 result = afero->setAttribute(1, _str_buf) ;
Rhyme 0:d895cd1cd897 89 return( result == afSUCCESS ) ;
Rhyme 0:d895cd1cd897 90 }
Rhyme 0:d895cd1cd897 91
Rhyme 0:d895cd1cd897 92 int temp_v2y(float value, edge_chart_type *p)
Rhyme 0:d895cd1cd897 93 {
Rhyme 0:d895cd1cd897 94 int y ;
Rhyme 0:d895cd1cd897 95 if (value < p->min) {
Rhyme 0:d895cd1cd897 96 value = p->min ;
Rhyme 0:d895cd1cd897 97 } else if (value > p->max) {
Rhyme 0:d895cd1cd897 98 value = p->max ;
Rhyme 0:d895cd1cd897 99 }
Rhyme 0:d895cd1cd897 100 y = p->top + p->height - 1
Rhyme 0:d895cd1cd897 101 - (int)((p->height - 2) * (value - p->min) /(p->max - p->min)) ;
Rhyme 0:d895cd1cd897 102 return( y ) ;
Rhyme 0:d895cd1cd897 103 }
Rhyme 0:d895cd1cd897 104
Rhyme 0:d895cd1cd897 105 void edge_temp::show(void)
Rhyme 0:d895cd1cd897 106 {
Rhyme 0:d895cd1cd897 107 edge_chart_type *p = &edge_chart[ _id ] ;
Rhyme 0:d895cd1cd897 108 int x, temp, before, after ;
Rhyme 0:d895cd1cd897 109 reset_watch_dog() ;
Rhyme 0:d895cd1cd897 110 if (display) {
Rhyme 0:d895cd1cd897 111 switch(display_mode) {
Rhyme 0:d895cd1cd897 112 case DISPLAY_MODE_SUMMARY:
Rhyme 0:d895cd1cd897 113 display->BusEnable(true) ;
Rhyme 0:d895cd1cd897 114 display->set_font((unsigned char*) Arial12x12);
Rhyme 0:d895cd1cd897 115 display->set_font_zoom(2, 2) ;
Rhyme 0:d895cd1cd897 116 display->foreground(White) ;
Rhyme 0:d895cd1cd897 117 display->locate(EDGE_SUMMARY_X, EDGE_SUMMARY_TIME_Y) ;
Rhyme 0:d895cd1cd897 118 displayTime(_sampled_time) ;
Rhyme 0:d895cd1cd897 119 display->locate(EDGE_SUMMARY_X, EDGE_SUMMARY_TEMP_Y) ;
Rhyme 0:d895cd1cd897 120 display->printf("Temp : %.2f %.2f %.2f",_ftemp[0], _ftemp[1], _ftemp[2]) ;
Rhyme 0:d895cd1cd897 121 display->BusEnable(false) ;
Rhyme 0:d895cd1cd897 122 reset_watch_dog() ;
Rhyme 0:d895cd1cd897 123 break ;
Rhyme 0:d895cd1cd897 124 case DISPLAY_MODE_CHART:
Rhyme 0:d895cd1cd897 125 x = p->left + p->index + 1;
Rhyme 0:d895cd1cd897 126 temp = temp_v2y(_ftemp[0], p) ;
Rhyme 0:d895cd1cd897 127 before = temp_v2y(_ftemp[1], p) ;
Rhyme 0:d895cd1cd897 128 after = temp_v2y(_ftemp[2], p) ;
Rhyme 0:d895cd1cd897 129 display->BusEnable(true) ;
Rhyme 0:d895cd1cd897 130 if (p->index == 0) {
Rhyme 0:d895cd1cd897 131 draw_chart_frame(p) ;
Rhyme 0:d895cd1cd897 132 }
Rhyme 0:d895cd1cd897 133 display->pixel(x, temp, White) ;
Rhyme 0:d895cd1cd897 134 display->pixel(x, before, Red) ;
Rhyme 0:d895cd1cd897 135 display->pixel(x, after, Blue) ;
Rhyme 0:d895cd1cd897 136 display->BusEnable(false) ;
Rhyme 0:d895cd1cd897 137 p->index = (p->index + 1) % (p->width - 2) ;
Rhyme 0:d895cd1cd897 138 break ;
Rhyme 0:d895cd1cd897 139 }
Rhyme 0:d895cd1cd897 140 }
Rhyme 0:d895cd1cd897 141 reset_watch_dog() ;
Rhyme 0:d895cd1cd897 142 }
Rhyme 0:d895cd1cd897 143