Writes a string to the specified device and register. Waits for results. This function will" />
參數(shù)資料
型號: 101-0600
廠商: Rabbit Semiconductor
文件頁數(shù): 103/106頁
文件大小: 0K
描述: COMPUTER SNGLBD BL2510 512K FLSH
標(biāo)準(zhǔn)包裝: 10
系列: SBC
模塊/板類型: 單板計算機模塊
適用于相關(guān)產(chǎn)品: BL2510
90
Coyote (BL2500)
Writes a string to the specified device and register. Waits for results. This function will check device infor-
mation to determine that the peripheral card is connected to a master.
PARAMETERS
handle
is an address index to device information. Use rn_device() or rn_find() to establish the
handle.
regno
is the command register number as designated by each device.
data
is a pointer to the address of the string to write to the device.
datalen
is the number of bytes to write (0–15).
NOTE: A data length of 0 will transmit the one-byte command register number.
RETURN VALUE
The status byte from the previous command. -1 means that device information indicates the peripheral
card is not connected to the master, and -2 means that the data length was greater than 15.
SEE ALSO
rn_read
Reads a string from the specified device and register. Waits for results. This function will check device
information to determine that the peripheral card is connected to a master.
PARAMETERS
handle
is an address index to device information. Use rn_device() or rn_find() to establish the
handle.
regno
is the command register number as designated by each device.
recdata
is a pointer to the address of the string to read from the device.
datalen
is the number of bytes to read (0–15).
NOTE: A data length of 0 will transmit the one-byte command register number.
RETURN VALUE
The status byte from the previous command. -1 means that device information indicates the peripheral
card is not connected to the master, and -2 means that the data length was greater than 15.
SEE ALSO
rn_write
int rn_write(int handle, int regno, char *data,
int datalen);
int rn_read(int handle, int regno, char *recdata,
int datalen);
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參數(shù)描述
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