AARDVARK I2CSPI HOST ADAPTER DRIVER DETAILS:
|File Size:||38.3 MB|
|Supported systems:||Windows Vista, Windows Vista 64-bit, Windows XP 64-bit, Mac OS X, Mac OS X 10.4, Mac OS X 10.5|
|Price:||Free* (*Free Registration Required)|
AARDVARK I2CSPI HOST ADAPTER DRIVER
1 General Overview
Small Order Recommendation Loading Similarly, if the Aardvark I 2 C subsystem was placed into slave mode and in the middle of a slave transaction, this command will disconnect the slave from the bus, flush the last transfer, and re-enable the slave. Such a feature is useful if the Aardvark adapter was receiving bytes but then was forced to wait indefinitely on the bus because of the absence of the terminating stop command. The bus is always freed i. Set the I aardvark i2cspi host adapter C bus lock timeout in milliseconds. The power-on default timeout is ms. The minimum timeout value is 10ms and the maximum is ms. If a timeout value outside this range is passed aardvark i2cspi host adapter the API function, the timeout will be restricted.
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The exact timeout that is set can vary based on the resolution of the timer within the Aardvark adapter. The nominal timeout that was set is returned back by the API function. The bus lock timeout aardvark i2cspi host adapter measured between events on the I 2 C bus, where an event is a start condition, the completion of 9bits of data transfer, a repeated start condition, or a stop condition.
Please note that once the Aardvark adapter detects a bus lock timeout, it will abort its I 2 C interface, even if the timeout condition aardvark i2cspi host adapter seen in the middle of a byte. When the Aardvark is acting as an I 2 C mater device, this may result in only a partial byte being executed on the bus.
Total Phase Aardvark I2C/SPI Host Adapter
Set the I 2 C bitrate in kilohertz. Only certain discrete bitrates are supported by the Aardvark I 2 C master interface. As such, this actual bitrate set will be less than or equal to aardvark i2cspi host adapter requested bitrate.
Read a stream of bytes from the I 2 C slave device. The topmost bits are ignored.
The Aardvark adapter will then assemble the address into the proper format as described in the Philips specification, namely by first issuing an write transaction on aardvark i2cspi host adapter bus to specify the bit slave and then a read transaction to read the requested number of bytes. The initial write transaction can be skipped if the "Combined Format" feature is requested in conjunction with the bit addressing functionality. It is possible to read zero bytes from the slave. However, due to aardvark i2cspi host adapter nature of the I 2 C protocol, it is not possible to address the slave and not request at least one byte. Therefore, one byte is actually received by the host, but is subsequently thrown away. Ordinarily the number of bytes read, if not 0will equal the requested number of bytes. One special scenario in which this will not happen is if the Aardvark adapter loses the bus during the data transmission due to the presence of another I 2 C master.
If the slave has fewer bytes to transmit than the number requested by the master, the slave will simply stop transmitting and the master will receive 0xff for each remaining byte in the transmission.
1 General Overview
This behavior is in accordance with the I 2 C protocol. Additionally, the flags argument can be used to specify a sized read operation. This length denotes the number of bytes that the slave has available for reading not including the length byte itself. The length value must be greater than 0. If it is equal to 0it aardvark i2cspi host adapter be treated as though it is 1.
In order to support protocols that include an optional checksum byte e. In this case the Aardvark will read one more data byte beyond the number specified by the length field. Read a stream of bytes from the I 2 C slave device with extended status information. The number of bytes read is returned through an additional pointer argument at the tail of the parameter list. The status code allows the user to discover specific events on the I 2 C bus that would otherwise be transparent given only the number of bytes transacted. The "Notes" section describes the status codes. Write a stream of aardvark i2cspi host adapter to the I 2 C slave device.Aardvark I2C/SPI Host Adapter is a fast and powerful I2C bus and SPI bus host adapter via USB.
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Aardvark I2C/SPI Host Adapter User Manual. 1 General Overview.
IC Background; SPI Background. 2 Hardware Specifications. Pinouts; Signal.