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comparison 1wire.c @ 45:efd44dc40934

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Add macros for number system used for temperatures. Add error strings and improve comments for ROM programming.
author darius@Inchoate
date Mon, 20 Oct 2008 22:11:18 +1030
parents 5898fba6593c
children 4abce5954d25
comparison
equal deleted inserted replaced
44:f219538d6ea7 45:efd44dc40934
45 #include "cons.h" 45 #include "cons.h"
46 46
47 static uint8_t OW_LastDevice = 0; 47 static uint8_t OW_LastDevice = 0;
48 static uint8_t OW_LastDiscrepancy = 0; 48 static uint8_t OW_LastDiscrepancy = 0;
49 static uint8_t OW_LastFamilyDiscrepancy = 0; 49 static uint8_t OW_LastFamilyDiscrepancy = 0;
50
51 const PROGMEM char *OWProgROM_Status[] = {
52 "OK",
53 "not possible (no HW support)",
54 "Invalid parameters",
55 "module doesn't exist or didn't respond properly"
56 };
50 57
51 /*----------------------------------------------------------------------------- 58 /*-----------------------------------------------------------------------------
52 * Configure the IO port as we need 59 * Configure the IO port as we need
53 */ 60 */
54 void 61 void
412 * programmed [to 0] 419 * programmed [to 0]
413 * status - If true program status rather than memory 420 * status - If true program status rather than memory
414 * 421 *
415 * Returns.. 422 * Returns..
416 * 0 if all is OK 423 * 0 if all is OK
417 * 1 if the programming was unsuccessful 424 * 1 if the programming is not possible
418 * 2 if the parameters were invalid 425 * 2 if the parameters were invalid
419 * 3 if the DS2502 didn't respond appropriately (also happens if the 426 * 3 if the DS2502 didn't respond appropriately (also happens if the
420 * module doesn't exist) 427 * module doesn't exist)
421 */ 428 */
422 uint8_t 429 uint8_t
424 #if defined(OWSETVPPON) && defined(OWSETVPPOFF) 431 #if defined(OWSETVPPON) && defined(OWSETVPPOFF)
425 uint8_t crc, i, tmp; 432 uint8_t crc, i, tmp;
426 433
427 /* Stupid programmer detection */ 434 /* Stupid programmer detection */
428 if (status) { 435 if (status) {
429 if (start + len > 3) 436 if (start + len > 3)
430 return(2); 437 return(2);
431 } else { 438 } else {
432 if (start + len > 127) 439 if (start + len > 127)
433 return(2); 440 return(2);
434 } 441 }