frederic blanc
onewire 1-wire ds18x20 ds2450 multi-channel
DS2450.c@0:8c4e1841eb30, 2012-03-02 (annotated)
- Committer:
- fblanc
- Date:
- Fri Mar 02 08:29:49 2012 +0000
- Revision:
- 0:8c4e1841eb30
v1.1 onewire multi-channel
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| fblanc | 0:8c4e1841eb30 | 1 | /** |
| fblanc | 0:8c4e1841eb30 | 2 | * @file DS2450.c |
| fblanc | 0:8c4e1841eb30 | 3 | * @brief library of DS2450 1-Wire Quad A/D Converter (http://www.maxim-ic.com/datasheet/index.mvp/id/2921) |
| fblanc | 0:8c4e1841eb30 | 4 | * @author Frederic BLANC (Published 01/03/2012 www.mbed.org) |
| fblanc | 0:8c4e1841eb30 | 5 | */ |
| fblanc | 0:8c4e1841eb30 | 6 | #include "mbed.h" |
| fblanc | 0:8c4e1841eb30 | 7 | #include "onewire.h" |
| fblanc | 0:8c4e1841eb30 | 8 | #include "DS2450.h" |
| fblanc | 0:8c4e1841eb30 | 9 | #include "crc8.h" |
| fblanc | 0:8c4e1841eb30 | 10 | #include "crc16.h" |
| fblanc | 0:8c4e1841eb30 | 11 | #include "utils.h" |
| fblanc | 0:8c4e1841eb30 | 12 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 13 | //* DS2450_read_ADC |
| fblanc | 0:8c4e1841eb30 | 14 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 15 | |
| fblanc | 0:8c4e1841eb30 | 16 | /** |
| fblanc | 0:8c4e1841eb30 | 17 | * @brief lancement lecture DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 18 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 19 | * @param [out] adc[] tableau des valeurs des adc |
| fblanc | 0:8c4e1841eb30 | 20 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 21 | * @date 20/06/2011 |
| fblanc | 0:8c4e1841eb30 | 22 | * |
| fblanc | 0:8c4e1841eb30 | 23 | */ |
| fblanc | 0:8c4e1841eb30 | 24 | uint8_t DS2450_read_ADC(uint8_t id[], uint16_t adc[]) { |
| fblanc | 0:8c4e1841eb30 | 25 | uint8_t i,j; |
| fblanc | 0:8c4e1841eb30 | 26 | uint8_t error; |
| fblanc | 0:8c4e1841eb30 | 27 | uint8_t sp[DS2450_SP_SIZE]; |
| fblanc | 0:8c4e1841eb30 | 28 | //waiting for convertion time ( nbchannel x resolution x 80�s +160�s) |
| fblanc | 0:8c4e1841eb30 | 29 | |
| fblanc | 0:8c4e1841eb30 | 30 | error=DS2450_read_page(&id[0],DS2450_PAGE0,&sp[0]); //read data |
| fblanc | 0:8c4e1841eb30 | 31 | if (error) |
| fblanc | 0:8c4e1841eb30 | 32 | return error; |
| fblanc | 0:8c4e1841eb30 | 33 | j=0; |
| fblanc | 0:8c4e1841eb30 | 34 | for (i=0;i<8;i+=2) |
| fblanc | 0:8c4e1841eb30 | 35 | adc[j++]=uint8_to_uint16(sp[i+3],sp[i+4]); //sp[i+3] LSB ,sp[i+4] MSB |
| fblanc | 0:8c4e1841eb30 | 36 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 37 | } |
| fblanc | 0:8c4e1841eb30 | 38 | |
| fblanc | 0:8c4e1841eb30 | 39 | |
| fblanc | 0:8c4e1841eb30 | 40 | /** |
| fblanc | 0:8c4e1841eb30 | 41 | * @brief lancement lecture DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 42 | * @param [in] n num bus onewire |
| fblanc | 0:8c4e1841eb30 | 43 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 44 | * @param [out] adc[] tableau des valeurs des adc |
| fblanc | 0:8c4e1841eb30 | 45 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 46 | * @date 07/09/2011 |
| fblanc | 0:8c4e1841eb30 | 47 | * |
| fblanc | 0:8c4e1841eb30 | 48 | */ |
| fblanc | 0:8c4e1841eb30 | 49 | uint8_t DS2450_read_ADC(uint8_t n,uint8_t id[], uint16_t adc[]) { |
| fblanc | 0:8c4e1841eb30 | 50 | uint8_t i,j; |
| fblanc | 0:8c4e1841eb30 | 51 | uint8_t error; |
| fblanc | 0:8c4e1841eb30 | 52 | uint8_t sp[DS2450_SP_SIZE]; |
| fblanc | 0:8c4e1841eb30 | 53 | //waiting for convertion time ( nbchannel x resolution x 80�s +160�s) |
| fblanc | 0:8c4e1841eb30 | 54 | |
| fblanc | 0:8c4e1841eb30 | 55 | error=DS2450_read_page(n,&id[0],DS2450_PAGE0,&sp[0]); //read data |
| fblanc | 0:8c4e1841eb30 | 56 | if (error) |
| fblanc | 0:8c4e1841eb30 | 57 | return error; |
| fblanc | 0:8c4e1841eb30 | 58 | j=0; |
| fblanc | 0:8c4e1841eb30 | 59 | for (i=0;i<8;i+=2) |
| fblanc | 0:8c4e1841eb30 | 60 | adc[j++]=uint8_to_uint16(sp[i+3],sp[i+4]); //sp[i+3] LSB ,sp[i+4] MSB |
| fblanc | 0:8c4e1841eb30 | 61 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 62 | } |
| fblanc | 0:8c4e1841eb30 | 63 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 64 | //* DS2450_start_and_read_ADC |
| fblanc | 0:8c4e1841eb30 | 65 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 66 | |
| fblanc | 0:8c4e1841eb30 | 67 | /** |
| fblanc | 0:8c4e1841eb30 | 68 | * @brief lancement & lecture DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 69 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 70 | * @param [out] adc[] tableau des valeurs des adc |
| fblanc | 0:8c4e1841eb30 | 71 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 72 | * @date 20/06/2011 |
| fblanc | 0:8c4e1841eb30 | 73 | * |
| fblanc | 0:8c4e1841eb30 | 74 | */ |
| fblanc | 0:8c4e1841eb30 | 75 | uint8_t DS2450_start_and_read_ADC(uint8_t id[], uint16_t adc[]) { |
| fblanc | 0:8c4e1841eb30 | 76 | uint8_t i,j; |
| fblanc | 0:8c4e1841eb30 | 77 | uint8_t error; |
| fblanc | 0:8c4e1841eb30 | 78 | uint8_t sp[DS2450_SP_SIZE]; |
| fblanc | 0:8c4e1841eb30 | 79 | |
| fblanc | 0:8c4e1841eb30 | 80 | error=DS2450_convert(&id[0],0x0F,0x00); //start convert |
| fblanc | 0:8c4e1841eb30 | 81 | if (error) |
| fblanc | 0:8c4e1841eb30 | 82 | return error; |
| fblanc | 0:8c4e1841eb30 | 83 | |
| fblanc | 0:8c4e1841eb30 | 84 | wait_ms(15); //waiting for convertion time ( nbchannel x resolution x 80�s +160�s) |
| fblanc | 0:8c4e1841eb30 | 85 | |
| fblanc | 0:8c4e1841eb30 | 86 | error=DS2450_read_page(&id[0],DS2450_PAGE0,&sp[0]); //read data |
| fblanc | 0:8c4e1841eb30 | 87 | if (error) |
| fblanc | 0:8c4e1841eb30 | 88 | return error; |
| fblanc | 0:8c4e1841eb30 | 89 | |
| fblanc | 0:8c4e1841eb30 | 90 | j=0; |
| fblanc | 0:8c4e1841eb30 | 91 | for (i=0;i<8;i+=2) |
| fblanc | 0:8c4e1841eb30 | 92 | adc[j++]=uint8_to_uint16(sp[i+3],sp[i+4]); //sp[i+3] LSB ,sp[i+4] MSB |
| fblanc | 0:8c4e1841eb30 | 93 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 94 | } |
| fblanc | 0:8c4e1841eb30 | 95 | |
| fblanc | 0:8c4e1841eb30 | 96 | /** |
| fblanc | 0:8c4e1841eb30 | 97 | * @brief lancement & lecture DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 98 | * @param [in] n num bus onewire |
| fblanc | 0:8c4e1841eb30 | 99 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 100 | * @param [out] adc[] tableau des valeurs des adc |
| fblanc | 0:8c4e1841eb30 | 101 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 102 | * @date 07/09/2011 |
| fblanc | 0:8c4e1841eb30 | 103 | * |
| fblanc | 0:8c4e1841eb30 | 104 | */ |
| fblanc | 0:8c4e1841eb30 | 105 | uint8_t DS2450_start_and_read_ADC(uint8_t n,uint8_t id[], uint16_t adc[]) { |
| fblanc | 0:8c4e1841eb30 | 106 | uint8_t i,j; |
| fblanc | 0:8c4e1841eb30 | 107 | uint8_t error; |
| fblanc | 0:8c4e1841eb30 | 108 | uint8_t sp[DS2450_SP_SIZE]; |
| fblanc | 0:8c4e1841eb30 | 109 | |
| fblanc | 0:8c4e1841eb30 | 110 | error=DS2450_convert(n,&id[0],0x0F,0x00); //start convert |
| fblanc | 0:8c4e1841eb30 | 111 | if (error) |
| fblanc | 0:8c4e1841eb30 | 112 | return error; |
| fblanc | 0:8c4e1841eb30 | 113 | |
| fblanc | 0:8c4e1841eb30 | 114 | wait_ms(15); //waiting for convertion time ( nbchannel x resolution x 80�s +160�s) |
| fblanc | 0:8c4e1841eb30 | 115 | |
| fblanc | 0:8c4e1841eb30 | 116 | error=DS2450_read_page(n,&id[0],DS2450_PAGE0,&sp[0]); //read data |
| fblanc | 0:8c4e1841eb30 | 117 | if (error) |
| fblanc | 0:8c4e1841eb30 | 118 | return error; |
| fblanc | 0:8c4e1841eb30 | 119 | |
| fblanc | 0:8c4e1841eb30 | 120 | j=0; |
| fblanc | 0:8c4e1841eb30 | 121 | for (i=0;i<8;i+=2) |
| fblanc | 0:8c4e1841eb30 | 122 | adc[j++]=uint8_to_uint16(sp[i+3],sp[i+4]); //sp[i+3] LSB ,sp[i+4] MSB |
| fblanc | 0:8c4e1841eb30 | 123 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 124 | } |
| fblanc | 0:8c4e1841eb30 | 125 | |
| fblanc | 0:8c4e1841eb30 | 126 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 127 | //* DS2450_read_page |
| fblanc | 0:8c4e1841eb30 | 128 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 129 | |
| fblanc | 0:8c4e1841eb30 | 130 | /** |
| fblanc | 0:8c4e1841eb30 | 131 | * @brief lancement lecture page DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 132 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 133 | * @param [in] adresse de la page a lire |
| fblanc | 0:8c4e1841eb30 | 134 | * @param [out] uint16_t sp tableau des valeurs de la page |
| fblanc | 0:8c4e1841eb30 | 135 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 136 | * @date 20/06/2011 |
| fblanc | 0:8c4e1841eb30 | 137 | * |
| fblanc | 0:8c4e1841eb30 | 138 | */ |
| fblanc | 0:8c4e1841eb30 | 139 | uint8_t DS2450_read_page(uint8_t id[], uint8_t adresse, |
| fblanc | 0:8c4e1841eb30 | 140 | uint8_t *sp) { |
| fblanc | 0:8c4e1841eb30 | 141 | uint8_t i; |
| fblanc | 0:8c4e1841eb30 | 142 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 143 | if (ow_reset()) //reset OW |
| fblanc | 0:8c4e1841eb30 | 144 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 145 | sp[0]=DS2450_READ_MEMORY; // command |
| fblanc | 0:8c4e1841eb30 | 146 | sp[1]=adresse; //adress page LSB |
| fblanc | 0:8c4e1841eb30 | 147 | sp[2]=0; //adress page MSB |
| fblanc | 0:8c4e1841eb30 | 148 | ow_command(sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 149 | ow_byte_wr(sp[1]); |
| fblanc | 0:8c4e1841eb30 | 150 | ow_byte_wr(sp[2]); |
| fblanc | 0:8c4e1841eb30 | 151 | |
| fblanc | 0:8c4e1841eb30 | 152 | for ( i=3 ; i< DS2450_SP_SIZE; i++ ) { //read 8xdata + CRC16 |
| fblanc | 0:8c4e1841eb30 | 153 | sp[i]=ow_byte_rd(); |
| fblanc | 0:8c4e1841eb30 | 154 | } |
| fblanc | 0:8c4e1841eb30 | 155 | |
| fblanc | 0:8c4e1841eb30 | 156 | if (ctrl_crc16( &sp[0], DS2450_SP_SIZE ) ) { //CRC16 (command+adress page LSB+adress page MSB+8xdata) |
| fblanc | 0:8c4e1841eb30 | 157 | wait_ms(100); //wait 100ms if error |
| fblanc | 0:8c4e1841eb30 | 158 | if ((sp[DS2450_SP_SIZE-1]==0xFF) && (sp[DS2450_SP_SIZE-2]==0xFF)) |
| fblanc | 0:8c4e1841eb30 | 159 | return OW_ERROR; // bus error |
| fblanc | 0:8c4e1841eb30 | 160 | if ((sp[DS2450_SP_SIZE-1]==0x00) && (sp[DS2450_SP_SIZE-2]==0x00)) |
| fblanc | 0:8c4e1841eb30 | 161 | return OW_BUSY; |
| fblanc | 0:8c4e1841eb30 | 162 | |
| fblanc | 0:8c4e1841eb30 | 163 | return OW_ERROR_CRC; // data error |
| fblanc | 0:8c4e1841eb30 | 164 | } |
| fblanc | 0:8c4e1841eb30 | 165 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 166 | } |
| fblanc | 0:8c4e1841eb30 | 167 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 168 | } |
| fblanc | 0:8c4e1841eb30 | 169 | /** |
| fblanc | 0:8c4e1841eb30 | 170 | * @brief lancement lecture page DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 171 | * @param [in] n num bus onewire |
| fblanc | 0:8c4e1841eb30 | 172 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 173 | * @param [in] adresse de la page a lire |
| fblanc | 0:8c4e1841eb30 | 174 | * @param [out] sp tableau des valeurs de la page |
| fblanc | 0:8c4e1841eb30 | 175 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 176 | * @date 07/09/2011 |
| fblanc | 0:8c4e1841eb30 | 177 | * |
| fblanc | 0:8c4e1841eb30 | 178 | */ |
| fblanc | 0:8c4e1841eb30 | 179 | uint8_t DS2450_read_page(uint8_t n,uint8_t id[], uint8_t adresse, |
| fblanc | 0:8c4e1841eb30 | 180 | uint8_t *sp) { |
| fblanc | 0:8c4e1841eb30 | 181 | uint8_t i; |
| fblanc | 0:8c4e1841eb30 | 182 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 183 | if (ow_reset(n)) //reset OW |
| fblanc | 0:8c4e1841eb30 | 184 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 185 | sp[0]=DS2450_READ_MEMORY; // command |
| fblanc | 0:8c4e1841eb30 | 186 | sp[1]=adresse; //adress page LSB |
| fblanc | 0:8c4e1841eb30 | 187 | sp[2]=0; //adress page MSB |
| fblanc | 0:8c4e1841eb30 | 188 | ow_command(n,sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 189 | ow_byte_wr(n,sp[1]); |
| fblanc | 0:8c4e1841eb30 | 190 | ow_byte_wr(n,sp[2]); |
| fblanc | 0:8c4e1841eb30 | 191 | |
| fblanc | 0:8c4e1841eb30 | 192 | for ( i=3 ; i< DS2450_SP_SIZE; i++ ) { //read 8xdata + CRC16 |
| fblanc | 0:8c4e1841eb30 | 193 | sp[i]=ow_byte_rd(n); |
| fblanc | 0:8c4e1841eb30 | 194 | } |
| fblanc | 0:8c4e1841eb30 | 195 | |
| fblanc | 0:8c4e1841eb30 | 196 | if (ctrl_crc16( &sp[0], DS2450_SP_SIZE ) ) { //CRC16 (command+adress page LSB+adress page MSB+8xdata) |
| fblanc | 0:8c4e1841eb30 | 197 | wait_ms(100); //wait 100ms if error |
| fblanc | 0:8c4e1841eb30 | 198 | if ((sp[DS2450_SP_SIZE-1]==0xFF) && (sp[DS2450_SP_SIZE-2]==0xFF)) |
| fblanc | 0:8c4e1841eb30 | 199 | return OW_ERROR; // bus error |
| fblanc | 0:8c4e1841eb30 | 200 | if ((sp[DS2450_SP_SIZE-1]==0x00) && (sp[DS2450_SP_SIZE-2]==0x00)) |
| fblanc | 0:8c4e1841eb30 | 201 | return OW_BUSY; |
| fblanc | 0:8c4e1841eb30 | 202 | |
| fblanc | 0:8c4e1841eb30 | 203 | return OW_ERROR_CRC; // data error |
| fblanc | 0:8c4e1841eb30 | 204 | } |
| fblanc | 0:8c4e1841eb30 | 205 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 206 | } |
| fblanc | 0:8c4e1841eb30 | 207 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 208 | } |
| fblanc | 0:8c4e1841eb30 | 209 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 210 | //* DS2450_convert |
| fblanc | 0:8c4e1841eb30 | 211 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 212 | |
| fblanc | 0:8c4e1841eb30 | 213 | /** |
| fblanc | 0:8c4e1841eb30 | 214 | * @brief lancement convertion DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 215 | * @param [in] uint8_t id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 216 | * @param [in] uint8_t input_select_mask |
| fblanc | 0:8c4e1841eb30 | 217 | * @param [in] uint8_t read_out_control |
| fblanc | 0:8c4e1841eb30 | 218 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 219 | * @date 20/06/2011 |
| fblanc | 0:8c4e1841eb30 | 220 | * |
| fblanc | 0:8c4e1841eb30 | 221 | */ |
| fblanc | 0:8c4e1841eb30 | 222 | uint8_t DS2450_convert(uint8_t id[], uint8_t input_select_mask,uint8_t read_out_control) { |
| fblanc | 0:8c4e1841eb30 | 223 | uint8_t i; |
| fblanc | 0:8c4e1841eb30 | 224 | uint8_t sp[5]; |
| fblanc | 0:8c4e1841eb30 | 225 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 226 | if (ow_reset()) //reset OW |
| fblanc | 0:8c4e1841eb30 | 227 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 228 | sp[0]=DS2450_CONVERT; // command |
| fblanc | 0:8c4e1841eb30 | 229 | sp[1]=input_select_mask; //mask |
| fblanc | 0:8c4e1841eb30 | 230 | sp[2]=read_out_control; //control |
| fblanc | 0:8c4e1841eb30 | 231 | ow_command(sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 232 | ow_byte_wr(sp[1]); |
| fblanc | 0:8c4e1841eb30 | 233 | ow_byte_wr(sp[2]); |
| fblanc | 0:8c4e1841eb30 | 234 | for ( i=3 ; i< 5; i++ ) { // read CRC16 |
| fblanc | 0:8c4e1841eb30 | 235 | sp[i]=ow_byte_rd(); |
| fblanc | 0:8c4e1841eb30 | 236 | } |
| fblanc | 0:8c4e1841eb30 | 237 | |
| fblanc | 0:8c4e1841eb30 | 238 | if (ctrl_crc16( &sp[0], 5 ) ) { //CRC16 (command+mask LSB+control) |
| fblanc | 0:8c4e1841eb30 | 239 | if ((sp[3]==0xFF) && (sp[3]==0xFF)) |
| fblanc | 0:8c4e1841eb30 | 240 | return OW_ERROR; |
| fblanc | 0:8c4e1841eb30 | 241 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 242 | } |
| fblanc | 0:8c4e1841eb30 | 243 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 244 | } |
| fblanc | 0:8c4e1841eb30 | 245 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 246 | } |
| fblanc | 0:8c4e1841eb30 | 247 | /** |
| fblanc | 0:8c4e1841eb30 | 248 | * @brief lancement convertion DS2450 ADC |
| fblanc | 0:8c4e1841eb30 | 249 | * @param [in] n num bus onewire |
| fblanc | 0:8c4e1841eb30 | 250 | * @param [in] uint8_t id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 251 | * @param [in] uint8_t input_select_mask |
| fblanc | 0:8c4e1841eb30 | 252 | * @param [in] uint8_t read_out_control |
| fblanc | 0:8c4e1841eb30 | 253 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 254 | * @date 07/09/2011 |
| fblanc | 0:8c4e1841eb30 | 255 | * |
| fblanc | 0:8c4e1841eb30 | 256 | */ |
| fblanc | 0:8c4e1841eb30 | 257 | uint8_t DS2450_convert(uint8_t n,uint8_t id[], uint8_t input_select_mask,uint8_t read_out_control) { |
| fblanc | 0:8c4e1841eb30 | 258 | uint8_t i; |
| fblanc | 0:8c4e1841eb30 | 259 | uint8_t sp[5]; |
| fblanc | 0:8c4e1841eb30 | 260 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 261 | if (ow_reset(n)) //reset OW |
| fblanc | 0:8c4e1841eb30 | 262 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 263 | sp[0]=DS2450_CONVERT; // command |
| fblanc | 0:8c4e1841eb30 | 264 | sp[1]=input_select_mask; //mask |
| fblanc | 0:8c4e1841eb30 | 265 | sp[2]=read_out_control; //control |
| fblanc | 0:8c4e1841eb30 | 266 | ow_command(n,sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 267 | ow_byte_wr(n,sp[1]); |
| fblanc | 0:8c4e1841eb30 | 268 | ow_byte_wr(n,sp[2]); |
| fblanc | 0:8c4e1841eb30 | 269 | for ( i=3 ; i< 5; i++ ) { // read CRC16 |
| fblanc | 0:8c4e1841eb30 | 270 | sp[i]=ow_byte_rd(n); |
| fblanc | 0:8c4e1841eb30 | 271 | } |
| fblanc | 0:8c4e1841eb30 | 272 | |
| fblanc | 0:8c4e1841eb30 | 273 | if (ctrl_crc16( &sp[0], 5 ) ) { //CRC16 (command+mask LSB+control) |
| fblanc | 0:8c4e1841eb30 | 274 | if ((sp[3]==0xFF) && (sp[3]==0xFF)) |
| fblanc | 0:8c4e1841eb30 | 275 | return OW_ERROR; |
| fblanc | 0:8c4e1841eb30 | 276 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 277 | } |
| fblanc | 0:8c4e1841eb30 | 278 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 279 | } |
| fblanc | 0:8c4e1841eb30 | 280 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 281 | } |
| fblanc | 0:8c4e1841eb30 | 282 | |
| fblanc | 0:8c4e1841eb30 | 283 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 284 | //* DS2450_configure_channel_ADC |
| fblanc | 0:8c4e1841eb30 | 285 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 286 | |
| fblanc | 0:8c4e1841eb30 | 287 | /** |
| fblanc | 0:8c4e1841eb30 | 288 | * @brief configure canal ADC DS2450 |
| fblanc | 0:8c4e1841eb30 | 289 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 290 | * @param [in] channel |
| fblanc | 0:8c4e1841eb30 | 291 | * @param [in] conflsb configuration OE-A OC-A 0 0 RC3-A RC2-A RC1-A RC0-A |
| fblanc | 0:8c4e1841eb30 | 292 | * @param [in] confmsb configuration POR 0 AFH-A AFL-A AEH-A AEL-A 0 IR-A |
| fblanc | 0:8c4e1841eb30 | 293 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 294 | * @date 20/06/2011 |
| fblanc | 0:8c4e1841eb30 | 295 | * |
| fblanc | 0:8c4e1841eb30 | 296 | */ |
| fblanc | 0:8c4e1841eb30 | 297 | uint8_t DS2450_configure_channel_ADC(uint8_t id[],uint8_t channel,uint8_t conflsb,uint8_t confmsb) { |
| fblanc | 0:8c4e1841eb30 | 298 | uint8_t i; |
| fblanc | 0:8c4e1841eb30 | 299 | uint8_t sp[7]; |
| fblanc | 0:8c4e1841eb30 | 300 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 301 | if (ow_reset()) //reset OW |
| fblanc | 0:8c4e1841eb30 | 302 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 303 | sp[0]=DS2450_WRITE_MEMORY; // command |
| fblanc | 0:8c4e1841eb30 | 304 | sp[1]=DS2450_PAGE1+channel; //adress page LSB |
| fblanc | 0:8c4e1841eb30 | 305 | sp[2]=0x00; //adress page MSB |
| fblanc | 0:8c4e1841eb30 | 306 | sp[3]=conflsb; //databyte |
| fblanc | 0:8c4e1841eb30 | 307 | ow_command(sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 308 | ow_byte_wr(sp[1]); |
| fblanc | 0:8c4e1841eb30 | 309 | ow_byte_wr(sp[2]); |
| fblanc | 0:8c4e1841eb30 | 310 | ow_byte_wr(sp[3]); |
| fblanc | 0:8c4e1841eb30 | 311 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 312 | sp[i]=ow_byte_rd(); |
| fblanc | 0:8c4e1841eb30 | 313 | } |
| fblanc | 0:8c4e1841eb30 | 314 | |
| fblanc | 0:8c4e1841eb30 | 315 | if (ctrl_crc16( &sp[0], 6 ) ) //CRC16 (command+adress page LSB+adress page MSB+databyte) |
| fblanc | 0:8c4e1841eb30 | 316 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 317 | sp[3]=confmsb; //databyte |
| fblanc | 0:8c4e1841eb30 | 318 | ow_byte_wr(sp[3]); |
| fblanc | 0:8c4e1841eb30 | 319 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 320 | sp[i]=ow_byte_rd(); |
| fblanc | 0:8c4e1841eb30 | 321 | } |
| fblanc | 0:8c4e1841eb30 | 322 | |
| fblanc | 0:8c4e1841eb30 | 323 | if (sp[3]!=sp[6] ) //control data |
| fblanc | 0:8c4e1841eb30 | 324 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 325 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 326 | } |
| fblanc | 0:8c4e1841eb30 | 327 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 328 | } |
| fblanc | 0:8c4e1841eb30 | 329 | /** |
| fblanc | 0:8c4e1841eb30 | 330 | * @brief configure canal ADC DS2450 |
| fblanc | 0:8c4e1841eb30 | 331 | * @param [in] n num bus onewire |
| fblanc | 0:8c4e1841eb30 | 332 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 333 | * @param [in] channel |
| fblanc | 0:8c4e1841eb30 | 334 | * @param [in] conflsb configuration OE-A OC-A 0 0 RC3-A RC2-A RC1-A RC0-A |
| fblanc | 0:8c4e1841eb30 | 335 | * @param [in] confmsb configuration POR 0 AFH-A AFL-A AEH-A AEL-A 0 IR-A |
| fblanc | 0:8c4e1841eb30 | 336 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 337 | * @date 20/06/2011 |
| fblanc | 0:8c4e1841eb30 | 338 | * |
| fblanc | 0:8c4e1841eb30 | 339 | */ |
| fblanc | 0:8c4e1841eb30 | 340 | uint8_t DS2450_configure_channel_ADC(uint8_t n,uint8_t id[],uint8_t channel,uint8_t conflsb,uint8_t confmsb) { |
| fblanc | 0:8c4e1841eb30 | 341 | uint8_t i; |
| fblanc | 0:8c4e1841eb30 | 342 | uint8_t sp[7]; |
| fblanc | 0:8c4e1841eb30 | 343 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 344 | if (ow_reset(n)) //reset OW |
| fblanc | 0:8c4e1841eb30 | 345 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 346 | sp[0]=DS2450_WRITE_MEMORY; // command |
| fblanc | 0:8c4e1841eb30 | 347 | sp[1]=DS2450_PAGE1+channel; //adress page LSB |
| fblanc | 0:8c4e1841eb30 | 348 | sp[2]=0x00; //adress page MSB |
| fblanc | 0:8c4e1841eb30 | 349 | sp[3]=conflsb; //databyte |
| fblanc | 0:8c4e1841eb30 | 350 | ow_command(n,sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 351 | ow_byte_wr(n,sp[1]); |
| fblanc | 0:8c4e1841eb30 | 352 | ow_byte_wr(n,sp[2]); |
| fblanc | 0:8c4e1841eb30 | 353 | ow_byte_wr(n,sp[3]); |
| fblanc | 0:8c4e1841eb30 | 354 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 355 | sp[i]=ow_byte_rd(n); |
| fblanc | 0:8c4e1841eb30 | 356 | } |
| fblanc | 0:8c4e1841eb30 | 357 | |
| fblanc | 0:8c4e1841eb30 | 358 | if (ctrl_crc16( &sp[0], 6 ) ) //CRC16 (command+adress page LSB+adress page MSB+databyte) |
| fblanc | 0:8c4e1841eb30 | 359 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 360 | sp[3]=confmsb; //databyte |
| fblanc | 0:8c4e1841eb30 | 361 | ow_byte_wr(n,sp[3]); |
| fblanc | 0:8c4e1841eb30 | 362 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 363 | sp[i]=ow_byte_rd(n); |
| fblanc | 0:8c4e1841eb30 | 364 | } |
| fblanc | 0:8c4e1841eb30 | 365 | |
| fblanc | 0:8c4e1841eb30 | 366 | if (sp[3]!=sp[6] ) //control data |
| fblanc | 0:8c4e1841eb30 | 367 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 368 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 369 | } |
| fblanc | 0:8c4e1841eb30 | 370 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 371 | } |
| fblanc | 0:8c4e1841eb30 | 372 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 373 | //* DS2450_configure_channel_ADC |
| fblanc | 0:8c4e1841eb30 | 374 | //********************************************************************************************************** |
| fblanc | 0:8c4e1841eb30 | 375 | |
| fblanc | 0:8c4e1841eb30 | 376 | /** |
| fblanc | 0:8c4e1841eb30 | 377 | * @brief configure PAGE |
| fblanc | 0:8c4e1841eb30 | 378 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 379 | * @param [in] uint8_t adresse de la page a ecrire |
| fblanc | 0:8c4e1841eb30 | 380 | * @param [in] config_page tableau de 8 byte |
| fblanc | 0:8c4e1841eb30 | 381 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 382 | * @date 20/06/2011 |
| fblanc | 0:8c4e1841eb30 | 383 | * |
| fblanc | 0:8c4e1841eb30 | 384 | */ |
| fblanc | 0:8c4e1841eb30 | 385 | uint8_t DS2450_configure_page(uint8_t id[], uint8_t adresse,uint8_t configpage[]) { |
| fblanc | 0:8c4e1841eb30 | 386 | uint8_t i,j; |
| fblanc | 0:8c4e1841eb30 | 387 | uint8_t sp[7]; |
| fblanc | 0:8c4e1841eb30 | 388 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 389 | if (ow_reset()) //reset OW |
| fblanc | 0:8c4e1841eb30 | 390 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 391 | sp[0]=DS2450_WRITE_MEMORY; // command |
| fblanc | 0:8c4e1841eb30 | 392 | sp[1]=adresse; //adress page LSB |
| fblanc | 0:8c4e1841eb30 | 393 | sp[2]=0x00; //adress page MSB |
| fblanc | 0:8c4e1841eb30 | 394 | sp[3]=configpage[0]; //databyte |
| fblanc | 0:8c4e1841eb30 | 395 | ow_command(sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 396 | ow_byte_wr(sp[1]); |
| fblanc | 0:8c4e1841eb30 | 397 | ow_byte_wr(sp[2]); |
| fblanc | 0:8c4e1841eb30 | 398 | ow_byte_wr(sp[3]); |
| fblanc | 0:8c4e1841eb30 | 399 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 400 | sp[i]=ow_byte_rd(); |
| fblanc | 0:8c4e1841eb30 | 401 | } |
| fblanc | 0:8c4e1841eb30 | 402 | |
| fblanc | 0:8c4e1841eb30 | 403 | if (sp[3]!=sp[6] ) //control data |
| fblanc | 0:8c4e1841eb30 | 404 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 405 | |
| fblanc | 0:8c4e1841eb30 | 406 | for ( j=1 ; j< 7; j++ ) { |
| fblanc | 0:8c4e1841eb30 | 407 | sp[3]=configpage[j]; //databyte |
| fblanc | 0:8c4e1841eb30 | 408 | ow_byte_wr(sp[3]); |
| fblanc | 0:8c4e1841eb30 | 409 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 410 | sp[i]=ow_byte_rd(); |
| fblanc | 0:8c4e1841eb30 | 411 | } |
| fblanc | 0:8c4e1841eb30 | 412 | if (sp[3]!=sp[6] ) //control data |
| fblanc | 0:8c4e1841eb30 | 413 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 414 | |
| fblanc | 0:8c4e1841eb30 | 415 | } |
| fblanc | 0:8c4e1841eb30 | 416 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 417 | } |
| fblanc | 0:8c4e1841eb30 | 418 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 419 | } |
| fblanc | 0:8c4e1841eb30 | 420 | /** |
| fblanc | 0:8c4e1841eb30 | 421 | * @brief configure PAGE |
| fblanc | 0:8c4e1841eb30 | 422 | * @param [in] n num bus onewire |
| fblanc | 0:8c4e1841eb30 | 423 | * @param [in] id[] tableau d'identifiant OW |
| fblanc | 0:8c4e1841eb30 | 424 | * @param [in] uint8_t adresse de la page a ecrire |
| fblanc | 0:8c4e1841eb30 | 425 | * @param [in] config_page tableau de 8 byte |
| fblanc | 0:8c4e1841eb30 | 426 | * @return OW_OK si erreur retourne OW_ERROR_CRC |
| fblanc | 0:8c4e1841eb30 | 427 | * @date 07/09/2011 |
| fblanc | 0:8c4e1841eb30 | 428 | * |
| fblanc | 0:8c4e1841eb30 | 429 | */ |
| fblanc | 0:8c4e1841eb30 | 430 | uint8_t DS2450_configure_page(uint8_t n,uint8_t id[], uint8_t adresse,uint8_t configpage[]) { |
| fblanc | 0:8c4e1841eb30 | 431 | uint8_t i,j; |
| fblanc | 0:8c4e1841eb30 | 432 | uint8_t sp[7]; |
| fblanc | 0:8c4e1841eb30 | 433 | if (id[0] == DS2450_ID) { |
| fblanc | 0:8c4e1841eb30 | 434 | if (ow_reset(n)) //reset OW |
| fblanc | 0:8c4e1841eb30 | 435 | return OW_SHORT_CIRCUIT; |
| fblanc | 0:8c4e1841eb30 | 436 | sp[0]=DS2450_WRITE_MEMORY; // command |
| fblanc | 0:8c4e1841eb30 | 437 | sp[1]=adresse; //adress page LSB |
| fblanc | 0:8c4e1841eb30 | 438 | sp[2]=0x00; //adress page MSB |
| fblanc | 0:8c4e1841eb30 | 439 | sp[3]=configpage[0]; //databyte |
| fblanc | 0:8c4e1841eb30 | 440 | ow_command(n,sp[0], &id[0]); |
| fblanc | 0:8c4e1841eb30 | 441 | ow_byte_wr(n,sp[1]); |
| fblanc | 0:8c4e1841eb30 | 442 | ow_byte_wr(n,sp[2]); |
| fblanc | 0:8c4e1841eb30 | 443 | ow_byte_wr(n,sp[3]); |
| fblanc | 0:8c4e1841eb30 | 444 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 445 | sp[i]=ow_byte_rd(n); |
| fblanc | 0:8c4e1841eb30 | 446 | } |
| fblanc | 0:8c4e1841eb30 | 447 | |
| fblanc | 0:8c4e1841eb30 | 448 | if (sp[3]!=sp[6] ) //control data |
| fblanc | 0:8c4e1841eb30 | 449 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 450 | |
| fblanc | 0:8c4e1841eb30 | 451 | for ( j=1 ; j< 7; j++ ) { |
| fblanc | 0:8c4e1841eb30 | 452 | sp[3]=configpage[j]; //databyte |
| fblanc | 0:8c4e1841eb30 | 453 | ow_byte_wr(n,sp[3]); |
| fblanc | 0:8c4e1841eb30 | 454 | for ( i=4 ; i< 7; i++ ) { //read CRC16+databyte |
| fblanc | 0:8c4e1841eb30 | 455 | sp[i]=ow_byte_rd(n); |
| fblanc | 0:8c4e1841eb30 | 456 | } |
| fblanc | 0:8c4e1841eb30 | 457 | if (sp[3]!=sp[6] ) //control data |
| fblanc | 0:8c4e1841eb30 | 458 | return OW_ERROR_CRC; |
| fblanc | 0:8c4e1841eb30 | 459 | |
| fblanc | 0:8c4e1841eb30 | 460 | } |
| fblanc | 0:8c4e1841eb30 | 461 | return OW_OK; |
| fblanc | 0:8c4e1841eb30 | 462 | } |
| fblanc | 0:8c4e1841eb30 | 463 | return OW_ERROR_BAD_ID; |
| fblanc | 0:8c4e1841eb30 | 464 | } |