DLP-245PL-G DLP Design Inc, DLP-245PL-G Datasheet - Page 8

• Manufacturer Part Number: DLP-245PL-G
• Description: MOD USB-MCU FT245RL W/18LF8722
• Manufacturer: DLP Design Inc

Specifications of DLP-245PL-G

• Module/board Type: Development Board
• Interface Type: USB
• Data Bus Width: 8 bit
• Operating Supply Voltage: 5 V
• Product: Interface Modules
• For Use With/related Products: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 813-1005

0xAA – EEPROM Read
Parameters:
Returns:
Function:
Example:
0xAB – EEPROM Write
Parameters:
Returns:
Function:
Example:
0xAC – DS18B20 Start Convert
Parameters:
Returns:
Function:
Example:
0xAD – DS18B20 Read Data
Parameters:
Returns:
Function:
Address (2 bytes) – Selects the zero-based address of the location in the
18LF8722’s internal EEPROM for reading. The first address byte sent is the
MSByte, and the second is the LSByte.
1 Byte: The byte of data read from the EEPROM.
This function will read and return the selected location in the 18LF8722’s internal
EEPROM.
0x2, 0xAA, 0x1, 0x2, 0xAB – Reads EEPROM Address 258, and returns a single
byte of data.
Address (2 bytes) – Selects the zero-based address of the location in the
18LF8722’s internal EEPROM for writing. The first address byte sent is the
MSByte, and the second is the LSByte.
Data – 8-bit data to be written to the EEPROM.
Undefined.
This function will write the selected location in the 18LF8722’s internal EEPROM.
0x3, 0xAB, 0x1, 0x2, 0xFE, 0x55 – Writes a value of 0xFE to EEPROM Address
258.
Port Pin – Selects the microcontroller port pin on the 18LF8722 to be used for
communication with a DS18B20 temperature sensor.
1 Byte: A single byte indicating the result of attempting to reset the temperature
sensor.
Sensor Status Definitions:
This function will select a port pin for communication with a DS18B20 tempera-
ture sensor and start a temperature conversion. In addition to power and ground
connections, a 1.5K to 4.7K pull-up resistor must be connected between VCC
and the data pin of the DS18B20 for proper communication. The conversion time
for the DS18B20 is specified for a maximum of 750 milliseconds.
0x2, 0xAC, 0x34, 0x9A – Starts a temperature conversion on 18LF8722 Port Pin
B0.
Port Pin – Selects the microcontroller port pin on the 18LF8722 to be used for
communication with the DS18B20 temperature sensor.
9 Bytes: The contents of the scratchpad memory in the DS18B20.
This function will select a port pin for communication with a DS18B20 tempera-
ture sensor and request the current contents of the DS18B20’s scratchpad
memory. A conversion (command 0xAC) must have been previously requested
for the data to be current. Additionally, host software must wait at least
750 milliseconds for the conversion to complete before reading the 9 bytes of
data. In addition to power and ground, a 1.5K to 4.7K pull-up resistor must be
connected between VCC and the data pin of the DS18B20 for proper
8
99: Sensor ready
8: Short circuit detected
2: No sensor detected