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Frequently Asked Questions

How do I write FIFO data?

Holtek Semiconductor - Keyboard/Joystick MCU Series FAQs
HT82K96A/HT82K96E FIFO is written by Packet. To write to the FIFO, the following process should be followed: Repeat the step 2 and 3 till the writing is complete or the ready bit becomes 0 which indicates the FIFO no longer allows any data writing. User writes the data through the FIFO pointer register, user has to record the number of bytes that have written. HT82K96A/HT82K96E allows a maximum of 8 bytes of data in each packet.

How to read the FIFO data ?

Holtek Semiconductor - Keyboard/Joystick MCU Series FAQs
HT82K96A/HT82K96E FIFO is read by Packet. To read from the FIFO, the following process should be followed: Repeat the step 2 and 3 untill the ready bit becomes 0 which indicates the end of the FIFO data reading. User reads the data through the FIFO pointer register, user has to record the number of bytes to be read. HT82K96A/HT82K96E allows a maximum of 8 bytes of data in each packet. See similar questions...

How do I know the FIFO data is zero length handshake?

Holtek Semiconductor - Keyboard/Joystick MCU Series FAQs
If the PC sends the zero length handshake data to HT82K96A/HT82K96E, the LEN0 bit of the MISC register will be set to 1 for indication. However the status bit will not be cleared automatically, this bit has to be cleared by user. See similar questions...

How can I read/write structs from/to data files?

Infrequently Asked Questions in comp.lang.c
Loop with putchar. Be careful; if your machine uses signed chars by default, all of the sign bits in your structure elements will be reversed. [a] See similar questions...

edit] Q: How can I write data on NTFS partitions?

Using FAQ - Knoppix Documentation Wiki
Knoppix 5 supports write access for NTFS partitions using libntfs and fuse. While preliminary results show generally good stability and a low likelihood of data corruption on the NTFS partition, these libraries are still beta and there is risk of data loss and disk corruption (back up your data first). Knoppix (and the Linux kernel) can read NTFS partitions just fine, the danger is only present when attempting to write to it. See similar questions...

Question: What is a FIFO?

NetShop UK - Cable management & USB/ADSL/Wireless Network pr...
Answer: A FIFO (First In First Out) is a type of buffer, where the first byte to arrive is the first to leave. Brainboxes Serial Devices all have Hardware FIFOs. FIFOs reduce the chances of data loss by 'buffering' the data. This way the device driver can then read all of the data from the FIFO in one go, whilst communication is still continuing. If you imagine someone asking you to load apples on to a lorry. See similar questions...

What is a FIFO buffer?

NCIA Support
A FIFO (First in-First out) buffer is what a UART chip uses to process data more smoothly. The data is fed to the buffer in a stream, stops, and then sends the data out. This process allows for Windows to continue with other things while the buffer does the work on a hardware level. The buffer will then send a request to the Windows kernel to continue the data stream after it has dumped the characters out. See similar questions...

How fast can you read/write data on a Blu-ray disc?

Blu-ray.com - Blu-ray FAQ
According to the Blu-ray Disc specification, 1x speed is defined as 36Mbps. However, as BD-ROM movies will require a 54Mbps data transfer rate the minimum speed we're expecting to see is 2x (72Mbps). Blu-ray also has the potential for much higher speeds, as a result of the larger numerical aperture (NA) adopted by Blu-ray Disc. See similar questions...

Can I write huge data files?

intradisk:faq:general [Intradisk Forum]
The file system does not restrict the size of a file and can process all file sizes. As well NFS is capable of handling huge files on the network. FTP and Samba protocol are currently still limited to a 4GB file size. See similar questions...

How do I read (or write) binary data?

Python Library and Extension FAQ
or complex data formats, it's best to use the struct module. It allows you to take a string containing binary data (usually numbers) and convert it to Python objects; and vice versa. For example, the following code reads two 2-byte integers and one 4-byte integer in big-endian format from a file: import struct f = open(filename, "rb") # Open in binary mode for portability s = f.read(8) x, y, z = struct. See similar questions...

Why is it not possible to write data to the EEPROM?

Holtek Semiconductor - 3-wire EEPROM Series FAQs
The EEPROM has a write data protect function. After power on or after reception of a EWDS Erase/Write Disable instruction, any instructions pertaining to writing data to the EEPROM will have no effect on the EEPROM data. If it is required to write data to the EEPROM, then it is first necessary to execute an EWEN instruction. After the EEPROM receives the EWEN instruction, it will remain in permanent effect until power is removed or until an EWDS instruction is executed. See similar questions...

What are the steps to write data into an HT93LCXX?

Holtek Semiconductor - 3-wire EEPROM Series FAQs
After power-on, the HT93LCXX IC is default in EWDS (Erase/Write Disable) state, any data erasing or writing is invalid. Before writing data to the device, you have to issue the EWEN(Erase/Write Enable) instruction first. To prevent from false actions, you are recommended to send an EWDS command after the Write instruction is executed. See similar questions...

How can I write data on NTFS partitions?

Using FAQ - Knoppix Documentation Wiki
Knoppix 5 supports write access for NTFS (http://www.wikipedia.org/wiki/NTFS) partitions using libntfs and fuse. While preliminary results show generally good stability and a low likelihood of data corruption on the NTFS partition, these libraries are still beta and there is risk of data loss and disk corruption (back up your data first). Knoppix (and the Linux kernel) can read NTFS partitions just fine, the danger is only present when attempting to write to it. See similar questions...

What to write?

Any Soldier Inc. Frequently Asked Questions - and maybe some...
Too easy: like you are talking to a friend, because that is what that Soldier is going to be to you real quick. It is also VERY helpful if you leave your full return address as part of your letter, envelopes tend to get trashed quickly. See similar questions...

How do I set the FIFO as input or output?

Holtek Semiconductor - Keyboard/Joystick MCU Series FAQs
By the Tx bit of MISC bit; Tx bit=1 for output, and Tx bit=0 for Input. For detailed spec. please check Holtek data sheet. See similar questions...

Is the FIFO depth adjustable?

Pericom - Frequently Asked Questions (FAQs) - By Product Fam...
from http://www.intel.com/design/bridge/index.htm ) The Intel 21154 has (in bytes) . Primary write = 88 bytes , read = 72 bytes, Delayed entries =3 secondary write= 152 bytes . read =152 bytes,Delayed entries= 3 . For the Pericom PI7C8154: (posted write buffer and delayed transaction buffer data size for FIFOs)primary write= 128+128 bytes. Read= 128+128 bytes. Delayed entries= 8. The same for the secondary.Thus the Pericom 8154 has MORE FIFO buffering than Intel. See similar questions...

For a single entry data write, will the Page Write save much time than Byte Write?

Holtek Semiconductor - I^2 C EEPROM Series FAQs
No, it takes the same time for the Page Write and Byte Write to complete a single entry data write. For array data write, Device Address and Word Address need not to be input for each data word in Page Write instruction, therefore the total write time is much shorter. Yes, we have plan on that. Please visit Holtek's website often to keep abreast of the the latest product information. See similar questions...

How can I read/write structures from/to data files?

Structures, Unions, and Enumerations
It is relatively straightforward to write a structure out using fwrite: fwrite(&somestruct, sizeof somestruct, 1, fp); and a corresponding fread invocation can read it back in. What happens here is that fwrite receives a pointer to the structure, and writes (or fread correspondingly reads) the memory image of the structure as a stream of bytes. The sizeof operator determines how many bytes the structure occupies. See similar questions...

How can I acquire data and write it to a file on disk?

Crandun Technologies - Frequently Asked Questions
Please see our Code Sample library. for Visual Basic, C and C++ examples of how to acquire data to a disk file. See similar questions...

I am able to read the data from my phone, but cannot write anything back. What should I do?

FAQ
You probably haven't yet registered your phone to the program. You can find the needed instructions in the very letter, was sent you with the keycode and the links. See similar questions...

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