參數(shù)資料
型號(hào)： DLP-245PL-G
廠(chǎng)商： DLP Design Inc
文件頁(yè)數(shù)： 13/14頁(yè)
文件大?。?/td> 0K
描述： MOD USB-MCU FT245RL W/18LF8722
產(chǎn)品目錄繪圖： DLP-245PL-G
標(biāo)準(zhǔn)包裝： 1
系列： USB
模塊/板類(lèi)型： 開(kāi)發(fā)板
適用于相關(guān)產(chǎn)品： USB
其它名稱(chēng)： 813-1005
8
0xAA – EEPROM Read
Parameters:
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.
Returns:
1 Byte: The byte of data read from the EEPROM.
Function:
This function will read and return the selected location in the 18LF8722’s internal
EEPROM.
Example:
0x2, 0xAA, 0x1, 0x2, 0xAB – Reads EEPROM Address 258, and returns a single
byte of data.
0xAB – EEPROM Write
Parameters:
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.
Returns:
Undefined.
Function:
This function will write the selected location in the 18LF8722’s internal EEPROM.
Example:
0x3, 0xAB, 0x1, 0x2, 0xFE, 0x55 – Writes a value of 0xFE to EEPROM Address
258.
0xAC – DS18B20 Start Convert
Parameters:
Port Pin – Selects the microcontroller port pin on the 18LF8722 to be used for
communication with a DS18B20 temperature sensor.
Returns:
1 Byte: A single byte indicating the result of attempting to reset the temperature
sensor.
Sensor Status Definitions:
99: Sensor ready
8: Short circuit detected
2: No sensor detected
Function:
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.
Example:
0x2, 0xAC, 0x34, 0x9A – Starts a temperature conversion on 18LF8722 Port Pin
B0.
0xAD – DS18B20 Read Data
Parameters:
Port Pin – Selects the microcontroller port pin on the 18LF8722 to be used for
communication with the DS18B20 temperature sensor.
Returns:
9 Bytes: The contents of the scratchpad memory in the DS18B20.
Function:
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
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