HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 233

• Manufacturer Part Number: HD64F38024DV
• Description: IC H8/SLP MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD64F38024DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

int write(int fileno, char *buf, unsigned int count)
Description
Return value
Parameters
long lseek(int fileno, long offset, int base)
Description
Return value
(1) When base is 0: Set the position at offset bytes from the file beginning
(2) When base is 1: Set the position at the current position plus offset bytes
(3) When base is 2: Set the position at the file size plus offset bytes
When the file is a console, printer, or another interactive device, when the new offset is
negative, or when in cases (1) and (2) the file size is exceeded, an error occurs. When the
file position is located correctly, the new position for reading/writing is returned as an
offset from the file beginning; when the operation is not successful, -1 is returned.
Writes data to the file indicated by the first parameter (fileno) from the
memory area indicated by the second parameter (buf). The number of bytes
to be written is indicated by the third parameter (count).
If the device (disk etc.) of the file to be written is full, only a number of bytes
smaller than the count bytes can be written. It is recommended that, if the
number of bytes actually written is zero a certain number of times in
succession, the disk is judged to be full and an error (-1) is returned.
The position for file reading/writing advances by the number of bytes
written. If writing is successful, the actual number of bytes written should be
returned; if the write operation fails, -1 should be returned.
Normal:
Error:
fileno
buf
count
Sets the position within the file, in byte units, for reading from and writing to
the file. The position within a new file should be calculated and set using the
following methods, depending on the third parameter (base).
Normal:
Error:
Actual number of bytes written
-1
File number of the file to which data is to be written
Memory area containing data for writing
Number of bytes to write
The new position for file reading/writing, as an offset in bytes
from the file beginning
-1
Set position in a file
Writes data
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