Marten Lootsma
To add bugfixes
Revision 5:2cd4928e8147, committed 2014-02-24
- Comitter:
- Sissors
- Date:
- Mon Feb 24 21:23:14 2014 +0000
- Parent:
- 4:29264b0a2c9f
- Child:
- 6:abfdd851218a
- Commit message:
- Simplified code, works also on KL25Z now, added support for DS1822
Changed in this revision
--- a/DS1820.cpp Wed Aug 07 11:02:10 2013 +0000
+++ b/DS1820.cpp Mon Feb 24 21:23:14 2014 +0000
@@ -1,53 +1,61 @@
#include "DS1820.h"
-#include "mbed.h"
-
-// Global variables shared between all DS1820 objects
-bool DS1820_done_flag;
-int DS1820_last_descrepancy;
-char DS1820_search_ROM[8];
+
+LinkedList<node> DS1820::probes;
-DS1820::DS1820 (PinName data_pin, PinName power_pin) : _datapin(data_pin), _parasitepin(power_pin) {
+DS1820::DS1820 (PinName data_pin, PinName power_pin, bool power_polarity) : _datapin(data_pin), _parasitepin(power_pin) {
int byte_counter;
- _parasite_power = true;
- for(byte_counter=0;byte_counter<8;byte_counter++)
- ROM[byte_counter] = 0xFF;
+ _power_polarity = power_polarity;
+ if (power_pin != NC)
+ _power_mosfet = true;
+
for(byte_counter=0;byte_counter<9;byte_counter++)
RAM[byte_counter] = 0x00;
+
+ if (!unassignedProbe(&_datapin, _ROM))
+ error("No unassigned DS1820 found!\n");
+ else {
+ _datapin.input();
+ probes.append(this);
+ _parasite_power = !read_power_supply();
+ }
}
-DS1820::DS1820 (PinName data_pin) : _datapin(data_pin), _parasitepin(NC) {
- int byte_counter;
- _parasite_power = false;
- for(byte_counter=0;byte_counter<8;byte_counter++)
- ROM[byte_counter] = 0xFF;
- for(byte_counter=0;byte_counter<9;byte_counter++)
- RAM[byte_counter] = 0x00;
+
+DS1820::~DS1820 (void) {
+ node *tmp;
+ for(int i=1; i<=probes.length(); i++)
+ {
+ tmp = probes.pop(i);
+ if (tmp->data == this)
+ probes.remove(i);
+ }
}
+
-bool DS1820::onewire_reset() {
+bool DS1820::onewire_reset(DigitalInOut *pin) {
// This will return false if no devices are present on the data bus
bool presence=false;
- _datapin.output();
- _datapin = 0; // bring low for 500 us
+ pin->output();
+ pin->write(0); // bring low for 500 us
wait_us(500);
- _datapin.input(); // let the data line float high
+ pin->input(); // let the data line float high
wait_us(90); // wait 90us
- if (_datapin.read()==0) // see if any devices are pulling the data line low
+ if (pin->read()==0) // see if any devices are pulling the data line low
presence=true;
wait_us(410);
return presence;
}
-void DS1820::onewire_bit_out (bool bit_data) {
- _datapin.output();
- _datapin = 0;
+void DS1820::onewire_bit_out (DigitalInOut *pin, bool bit_data) {
+ pin->output();
+ pin->write(0);
wait_us(3); // DXP modified from 5
if (bit_data) {
- _datapin.input(); // bring data line high
+ pin->input(); // bring data line high
wait_us(55);
} else {
wait_us(55); // keep data line low
- _datapin.input();
+ pin->input();
wait_us(10); // DXP added to allow bus to float high before next bit_out
}
}
@@ -55,19 +63,19 @@
void DS1820::onewire_byte_out(char data) { // output data character (least sig bit first).
int n;
for (n=0; n<8; n++) {
- onewire_bit_out(data & 0x01);
+ onewire_bit_out(&this->_datapin, data & 0x01);
data = data >> 1; // now the next bit is in the least sig bit position.
}
}
-bool DS1820::onewire_bit_in() {
+bool DS1820::onewire_bit_in(DigitalInOut *pin) {
bool answer;
- _datapin.output();
- _datapin = 0;
+ pin->output();
+ pin->write(0);
wait_us(3); // DXP modofied from 5
- _datapin.input();
+ pin->input();
wait_us(10); // DXP modified from 5
- answer = _datapin.read();
+ answer = pin->read();
wait_us(45); // DXP modified from 50
return answer;
}
@@ -77,41 +85,47 @@
int i;
for (i=0; i<8; i++) {
answer = answer >> 1; // shift over to make room for the next bit
- if (onewire_bit_in())
+ if (onewire_bit_in(&this->_datapin))
answer = answer | 0x80; // if the data port is high, make this bit a 1
}
return answer;
}
-
-bool DS1820::search_ROM() {
- return search_ROM_routine(0xF0); // Search ROM command
+
+bool DS1820::unassignedProbe(PinName pin) {
+ DigitalInOut _pin(pin);
+ char ROM_address[8];
+ return search_ROM_routine(&_pin, 0xF0, ROM_address);
}
-bool DS1820::search_alarm() {
- return search_ROM_routine(0xEC); // Search Alarm command
+bool DS1820::unassignedProbe(DigitalInOut *pin, char *ROM_address) {
+ return search_ROM_routine(pin, 0xF0, ROM_address);
}
-bool DS1820::search_ROM_routine(char command) {
- extern bool DS1820_done_flag;
- extern int DS1820_last_descrepancy;
- extern char DS1820_search_ROM[8];
+bool DS1820::search_ROM_routine(DigitalInOut *pin, char command, char *ROM_address) {
+ bool DS1820_done_flag = false;
+ int DS1820_last_descrepancy = 0;
+ char DS1820_search_ROM[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+
int descrepancy_marker, ROM_bit_index;
bool return_value, Bit_A, Bit_B;
char byte_counter, bit_mask;
return_value=false;
- if (!DS1820_done_flag) {
- if (!onewire_reset()) {
- DS1820_last_descrepancy = 0; // no devices present
+ while (!DS1820_done_flag) {
+ if (!onewire_reset(pin)) {
+ return false;
} else {
ROM_bit_index=1;
descrepancy_marker=0;
- onewire_byte_out(command); // Search ROM command or Search Alarm command
+ for (int n=0; n<8; n++) { // Search ROM command or Search Alarm command
+ onewire_bit_out(pin, command & 0x01);
+ command = command >> 1; // now the next bit is in the least sig bit position.
+ }
byte_counter = 0;
bit_mask = 0x01;
while (ROM_bit_index<=64) {
- Bit_A = onewire_bit_in();
- Bit_B = onewire_bit_in();
+ Bit_A = onewire_bit_in(pin);
+ Bit_B = onewire_bit_in(pin);
if (Bit_A & Bit_B) {
descrepancy_marker = 0; // data read error, this should never happen
ROM_bit_index = 0xFF;
@@ -137,7 +151,7 @@
}
}
}
- onewire_bit_out (DS1820_search_ROM[byte_counter] & bit_mask);
+ onewire_bit_out (pin, DS1820_search_ROM[byte_counter] & bit_mask);
ROM_bit_index++;
if (bit_mask & 0x80) {
byte_counter++;
@@ -149,12 +163,32 @@
}
DS1820_last_descrepancy = descrepancy_marker;
if (ROM_bit_index != 0xFF) {
- for(byte_counter=0;byte_counter<8;byte_counter++)
- ROM[byte_counter] = DS1820_search_ROM[byte_counter];
- if (ROM_checksum_error()) // Check the CRC
- DS1820_last_descrepancy = 0; // Abort any more search
- else
- return_value = true;
+ int i = 1;
+ node *list_container;
+ while(1) {
+ list_container = probes.pop(i);
+ if (list_container == NULL) { //End of list, or empty list
+ if (ROM_checksum_error(DS1820_search_ROM)) { // Check the CRC
+ return false;
+ }
+ for(byte_counter=0;byte_counter<8;byte_counter++)
+ ROM_address[byte_counter] = DS1820_search_ROM[byte_counter];
+ return true;
+ } else { //Otherwise, check if ROM is already known
+ bool equal = true;
+ DS1820 *pointer = (DS1820*) list_container->data;
+ char *ROM_compare = pointer->_ROM;
+
+ for(byte_counter=0;byte_counter<8;byte_counter++) {
+ if ( ROM_compare[byte_counter] != DS1820_search_ROM[byte_counter])
+ equal = false;
+ }
+ if (equal)
+ break;
+ else
+ i++;
+ }
+ }
}
}
if (DS1820_last_descrepancy == 0)
@@ -163,49 +197,28 @@
return return_value;
}
-void DS1820::search_ROM_setup() {
- extern bool DS1820_done_flag;
- extern int DS1820_last_descrepancy;
- extern char DS1820_search_ROM[8];
- DS1820_done_flag = false;
- DS1820_last_descrepancy = 0;
- int i;
- for (i=0; i<8; i++)
- DS1820_search_ROM[i]=0x00;
-}
-
-void DS1820::read_ROM() {
- // NOTE: This command can only be used when there is one DS1820 on the bus. If this command
- // is used when there is more than one slave present on the bus, a data collision will occur
- // when all the DS1820s attempt to respond at the same time.
- int i;
- onewire_reset();
- onewire_byte_out(0x33); // Read ROM id
- for (i=0; i<8; i++)
- ROM[i]=onewire_byte_in();
-}
-
void DS1820::match_ROM() {
// Used to select a specific device
int i;
- onewire_reset();
+ onewire_reset(&this->_datapin);
onewire_byte_out( 0x55); //Match ROM command
- for (i=0;i<8;i++)
- onewire_byte_out(ROM[i]);
+ for (i=0;i<8;i++) {
+ onewire_byte_out(_ROM[i]);
+ }
}
void DS1820::skip_ROM() {
- onewire_reset();
+ onewire_reset(&this->_datapin);
onewire_byte_out(0xCC); // Skip ROM command
}
-bool DS1820::ROM_checksum_error() {
+bool DS1820::ROM_checksum_error(char *_ROM_address) {
char CRC=0x00;
int i;
for(i=0;i<7;i++) // Only going to shift the lower 7 bytes
- CRC = CRC_byte(CRC, ROM[i]);
+ CRC = CRC_byte(CRC, _ROM_address[i]);
// After 7 bytes CRC should equal the 8th byte (ROM CRC)
- return (CRC!=ROM[7]); // will return true if there is a CRC checksum mis-match
+ return (CRC!=_ROM_address[7]); // will return true if there is a CRC checksum mis-match
}
bool DS1820::RAM_checksum_error() {
@@ -249,7 +262,7 @@
return CRC;
}
-int DS1820::convert_temperature(bool wait, devices device) {
+int DS1820::convertTemperature(bool wait, devices device) {
// Convert temperature into scratchpad RAM for all devices at once
int delay_time = 750; // Default delay time
char resolution;
@@ -257,7 +270,7 @@
skip_ROM(); // Skip ROM command, will convert for ALL devices
else {
match_ROM();
- if (FAMILY_CODE == FAMILY_CODE_DS18B20 ) {
+ if ((FAMILY_CODE == FAMILY_CODE_DS18B20 ) || (FAMILY_CODE == FAMILY_CODE_DS1822 )) {
resolution = RAM[4] & 0x60;
if (resolution == 0x00) // 9 bits
delay_time = 94;
@@ -267,12 +280,20 @@
delay_time = 375;
}
}
+
onewire_byte_out( 0x44); // perform temperature conversion
if (_parasite_power) {
- _parasitepin = 1; // Parasite power strong pullup
- wait_ms(delay_time);
- _parasitepin = 0;
- delay_time = 0;
+ if (_power_mosfet) {
+ _parasitepin = _power_polarity; // Parasite power strong pullup
+ wait_ms(delay_time);
+ _parasitepin = !_power_polarity;
+ delay_time = 0;
+ } else {
+ _datapin.output();
+ _datapin.write(1);
+ wait_ms(delay_time);
+ _datapin.input();
+ }
} else {
if (wait) {
wait_ms(delay_time);
@@ -296,7 +317,7 @@
// crcerr = 1;
}
-bool DS1820::set_configuration_bits(unsigned int resolution) {
+bool DS1820::setResolution(unsigned int resolution) {
bool answer = false;
resolution = resolution - 9;
if (resolution < 4) {
@@ -309,13 +330,6 @@
return answer;
}
-int DS1820::read_scratchpad() {
- int answer;
- read_RAM();
- answer = (RAM[2]<<8) + RAM[3];
- return answer;
-}
-
void DS1820::write_scratchpad(int data) {
RAM[3] = data;
RAM[2] = data>>8;
@@ -323,43 +337,11 @@
onewire_byte_out(0x4E); // Copy scratchpad into DS1820 ram memory
onewire_byte_out(RAM[2]); // T(H)
onewire_byte_out(RAM[3]); // T(L)
- if ( FAMILY_CODE == FAMILY_CODE_DS18B20 ) {
+ if ((FAMILY_CODE == FAMILY_CODE_DS18B20 ) || (FAMILY_CODE == FAMILY_CODE_DS1822 )) {
onewire_byte_out(RAM[4]); // Configuration register
}
}
-void DS1820::store_scratchpad(devices device) {
- if (device==all_devices)
- skip_ROM(); // Skip ROM command, will store for ALL devices
- else
- match_ROM();
- onewire_byte_out(0x48); // Write scratchpad into E2 command
- if (_parasite_power)
- _parasitepin=1;
- wait_ms(10); // Parasite power strong pullup for 10ms
- if (_parasite_power)
- _parasitepin=0;
-}
-
-int DS1820::recall_scratchpad(devices device) {
-// This copies the E2 values into the DS1820's memory.
-// If you specify all_devices this will return zero, otherwise
-// it will return the value of the scratchpad memory.
- int answer=0;
- if (device==all_devices)
- skip_ROM(); // Skip ROM command, will recall for ALL devices
- else
- match_ROM();
- onewire_byte_out(0xB8); // Recall E2 data to scratchpad command
- wait_ms(10); // not sure I like polling for completion
- // it could cause an infinite loop
- if (device==DS1820::this_device) {
- read_RAM();
- answer = read_scratchpad();
- }
- return answer;
-}
-
float DS1820::temperature(char scale) {
// The data specs state that count_per_degree should be 0x10 (16), I found my devices
// to have a count_per_degree of 0x4B (75). With the standard resolution of 1/2 deg C
@@ -378,7 +360,7 @@
reading = 0-((reading ^ 0xffff) + 1); // 2's comp then convert to signed int
}
answer = reading +0.0; // convert to floating point
- if ( FAMILY_CODE == FAMILY_CODE_DS18B20 ) {
+ if ((FAMILY_CODE == FAMILY_CODE_DS18B20 ) || (FAMILY_CODE == FAMILY_CODE_DS1822 )) {
answer = answer / 8.0;
}
else {
@@ -403,7 +385,7 @@
else
match_ROM();
onewire_byte_out(0xB4); // Read power supply command
- return onewire_bit_in();
+ return onewire_bit_in(&this->_datapin);
}
--- a/DS1820.h Wed Aug 07 11:02:10 2013 +0000
+++ b/DS1820.h Mon Feb 24 21:23:14 2014 +0000
@@ -24,60 +24,31 @@
#define MBED_DS1820_H
#include "mbed.h"
-
-// ****** THIS GLOBAL VARIABLES MUST BE DEFINED IN main.cpp
+#include "LinkedList.h"
-// Global variables shared between all DS1820 objects
-//bool DS1820_done_flag;
-//int DS1820_last_descrepancy;
-//char DS1820_search_ROM[8];
+#define FAMILY_CODE _ROM[0]
+#define FAMILY_CODE_DS1820 0x10
+#define FAMILY_CODE_DS18B20 0x28
+#define FAMILY_CODE_DS1822 0x22
/** DS1820 Dallas 1-Wire Temperature Probe
*
* Example:
* @code
* #include "mbed.h"
- *
- * #include "TextLCD.h"
* #include "DS1820.h"
*
- * TextLCD lcd(p25, p26, p21, p22, p23, p24, TextLCD::LCD16x2); // rs, e, d0-d3, layout
- *
- * const int MAX_PROBES = 16;
- * DS1820* probe[MAX_PROBES];
- *
+ * DS1820 probe(DATA_PIN);
+ *
* int main() {
- * int i;
- * int devices_found=0;
- * // Initialize the probe array to DS1820 objects
- * for (i = 0; i < MAX_PROBES; i++)
- * probe[i] = new DS1820(p27);
- * // Initialize global state variables
- * probe[0]->search_ROM_setup();
- * // Loop to find all devices on the data line
- * while (probe[devices_found]->search_ROM() and devices_found<MAX_PROBES-1)
- * devices_found++;
- * // If maximum number of probes are found,
- * // bump the counter to include the last array entry
- * if (probe[devices_found]->ROM[0] != 0xFF)
- * devices_found++;
- *
- * lcd.cls();
- * if (devices_found==0)
- * lcd.printf("No devices found");
- * else {
- * while (true) {
- * probe[0]->convert_temperature(true, DS1820::all_devices);
- * lcd.cls();
- * for (i=0; i<devices_found; i++) {
- * lcd.printf("%3.1f ",probe[i]->temperature('f'));
- * }
- * }
+ * while(1) {
+ * probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready
+ * printf("It is %3.1foC\r\n", probe.temperature());
+ * wait(1);
* }
* }
* @endcode
*/
-
class DS1820 {
public:
enum devices{
@@ -85,84 +56,28 @@
all_devices }; // command applies to all devices
/** Create a probe object connected to the specified pins
- *
- * @param data_pin DigitalInOut pin for the data bus
- * @param power_pin DigitalOut pin to control the power MOSFET
- */
- DS1820(PinName data_pin, PinName power_pin); // Constructor with parasite power pin
-
- /** Create a probe object connected to the specified pin
- * this is used when all probes are externally powered
+ *
+ * The probe might either by regular powered or parasite powered. If it is parasite
+ * powered and power_pin is set, that pin will be used to switch an external mosfet connecting
+ * data to Vdd. If it is parasite powered and the pin is not set, the regular data pin
+ * is used to supply extra power when required. This will be sufficient as long as the
+ * number of probes is limitted.
*
* @param data_pin DigitalInOut pin for the data bus
+ * @param power_pin DigitalOut (optional) pin to control the power MOSFET
+ * @param power_polarity bool (optional) which sets active state (0 for active low (default), 1 for active high)
*/
- DS1820(PinName data_pin);
-
- /** ROM is a copy of the internal DS1820's ROM
- * It is created during the search_ROM() or search_alarm() commands
- *
- * ROM[0] is the Dallas Family Code
- * ROM[1] thru ROM[6] is the 48-bit unique serial number
- * ROM[7] is the device CRC
- */
- char ROM[8];
- #define FAMILY_CODE ROM[0]
- #define FAMILY_CODE_DS1820 0x10
- #define FAMILY_CODE_DS18S20 0x10
- #define FAMILY_CODE_DS18B20 0x28
-
- /** RAM is a copy of the internal DS1820's RAM
- * It's updated during the read_RAM() command
- * which is automaticaly called from any function
- * using the RAM values except RAM_checksum_error.
- */
- char RAM[9];
-
- /** This function copies the DS1820's RAM into the object's
- * RAM[]. It is automaticaly called by temperature(),
- * read_scratchpad(), and recall_scratchpad() of a single probe.
- */
- void read_RAM();
+ DS1820(PinName data_pin, PinName power_pin = NC, bool power_polarity = 0); // Constructor with parasite power pin
+ ~DS1820();
- /** This routine initializes the global variables used in
- * the search_ROM() and search_alarm() funtions. It should
- * be called once before looping to find devices.
- */
- void search_ROM_setup();
-
- /** This routine will search for an unidentified device
- * on the bus. It uses the variables in search_ROM_setup
- * to remember the pervious ROM address found.
- * It will return FALSE if there were no new devices
- * discovered on the bus.
+ /** Function to see if there are DS1820 devices left on a pin which do not have a corresponding DS1820 object
+ *
+ * @return - true if there are one or more unassigned devices, otherwise false
*/
- bool search_ROM();
-
- /** This routine will search for an unidentified device
- * which has the temperature alarm bit set. It uses the
- * variables in search_ROM_setup to remember the pervious
- * ROM address found. It will return FALSE if there were
- * no new devices with alarms discovered on the bus.
- */
- bool search_alarm();
-
- /** This routine will read the ROM (Family code, serial number
- * and Checksum) from a dedicated device on the bus.
- *
- * NOTE: This command can only be used when there is only one
- * DS1820 on the bus. If this command is used when there
- * is more than one slave present on the bus, a data
- * collision will occur when all the DS1820s attempt to
- * respond at the same time.
- */
- void read_ROM();
+ static bool unassignedProbe(PinName pin);
/** This routine will initiate the temperature conversion within
- * one or all DS1820 probes. There is an optional built in delay
- * (up to 750ms) to allow the conversion to complete.
- *
- * To update all probes on the bus, use a statement such as this:
- * probe[0]->convert_temperature(true, DS1820::all_devices);
+ * one or all DS1820 probes.
*
* @param wait if true or parisitic power is used, waits up to 750 ms for
* conversion otherwise returns immediatly.
@@ -170,33 +85,15 @@
* to all devices on the 1-Wire bus.
* @returns milliseconds untill conversion will complete.
*/
- int convert_temperature(bool wait, devices device=this_device);
+ int convertTemperature(bool wait, devices device=this_device);
/** This function will return the probe temperature. Approximately 10ms per
* probe to read its RAM, do CRC check and convert temperature on the LPC1768.
- * This function uses the count remainding values to interpolate the temperature
- * to about 1/150th of a degree. Whereas the probe is not spec to
- * that precision. It does seem to give a smooth reading to the
- * tenth of a degree.
*
* @param scale, may be either 'c' or 'f'
* @returns temperature for that scale, or -1000.0 if CRC error detected.
*/
float temperature(char scale='c');
-
- /** This function calculates the ROM checksum and compares it to the
- * CRC value stored in ROM[7].
- *
- * @returns true if the checksums mis-match, otherwise false.
- */
- bool ROM_checksum_error();
-
- /** This function calculates the RAM checksum and compares it to the
- * CRC value stored in RAM[8]. Approx 10 us on LPC1768.
- *
- * @returns true if the checksums mis-matche, otherwise false.
- */
- bool RAM_checksum_error();
/** This function sets the temperature resolution for the DS18B20
* in the configuration register.
@@ -204,65 +101,36 @@
* @param a number between 9 and 12 to specify resolution
* @returns true if successful
*/
- bool set_configuration_bits(unsigned int resolution);
-
- /** This function returns the values stored in the temperature
- * alarm registers.
- *
- * @returns a 16 bit integer of TH (upper byte) and TL (lower byte).
- */
- int read_scratchpad();
-
- /** This function will store the passed data into the DS1820's RAM.
- * Note: It does NOT save the data to the EEPROM for retention
- * during cycling the power off and on.
- *
- * @param a 16 bit integer of TH (upper byte) and TL (lower byte).
- */
- void write_scratchpad(int data);
-
- /** This function will transfer the TH and TL registers from the
- * DS1820's RAM into the EEPROM.
- * Note: There is a built in 10ms delay to allow for the
- * completion of the EEPROM write cycle.
- *
- * @param allows the fnction to apply to a specific device or
- * to all devices on the 1-Wire bus.
- */
- void store_scratchpad(devices device=this_device);
-
- /** This function will copy the stored values from the EEPROM
- * into the DS1820's RAM locations for TH and TL.
- *
- * @param allows the function to apply to a specific device or
- * to all devices on the 1-Wire bus.
- */
- int recall_scratchpad(devices device=this_device);
-
- /** This function will return the type of power supply for
- * a specific device. It can also be used to query all devices
- * looking for any device that is parasite powered.
- *
- * @returns true if the device (or all devices) are Vcc powered,
- * returns false if the device (or ANY device) is parasite powered.
- */
- bool read_power_supply(devices device=this_device);
+ bool setResolution(unsigned int resolution);
private:
bool _parasite_power;
- char CRC_byte (char CRC, char byte );
- bool onewire_reset();
+ bool _power_mosfet;
+ bool _power_polarity;
+
+ static char CRC_byte (char CRC, char byte );
+ static bool onewire_reset(DigitalInOut *pin);
void match_ROM();
void skip_ROM();
- bool search_ROM_routine(char command);
- void onewire_bit_out (bool bit_data);
+ static bool search_ROM_routine(DigitalInOut *pin, char command, char *ROM_address);
+ static void onewire_bit_out (DigitalInOut *pin, bool bit_data);
void onewire_byte_out(char data);
- bool onewire_bit_in();
+ static bool onewire_bit_in(DigitalInOut *pin);
char onewire_byte_in();
+ static bool ROM_checksum_error(char *_ROM_address);
+ bool RAM_checksum_error();
+ void read_RAM();
+ static bool unassignedProbe(DigitalInOut *pin, char *ROM_address);
+ void write_scratchpad(int data);
+ bool read_power_supply(devices device=this_device);
-protected:
DigitalInOut _datapin;
DigitalOut _parasitepin;
+
+ char _ROM[8];
+ char RAM[9];
+
+ static LinkedList<node> probes;
};
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LinkedList.lib Mon Feb 24 21:23:14 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/LinkedList/#4ed66162aaa8