This only requires the COM2 Mode registers to be initialized once based on baud rate and data format. In this mode, the TX drivers are always asserted. The COM3 serial port is implemented at address 0x It is sufficient to interface with serial devices that only require transmit and receive data lines. When accessing these registers, it is important not to change the other bit positions in these Port F registers. All accesses to these registers should use read-modify-write cycles.
When configured as inputs, they have standard TTL level thresholds and must not be driven below 0 Volts or above 3. This port can implement either a master or slave interface to peripheral devices that have either Motorola SPI, or National Semiconductor Microwire serial interfaces.
The transmit and receive data paths are buffered with internal FIFO memories allowing up to eight bit values to be stored for both transmit and receive modes. The clock rate is programmable up to 3. The data frame size is programmable from 4 to 16 bits.
The SPI bus pins are defined in the table below:. Sample code is available for the Matrix Keypad. Contact Technologic Systems for further information. This means that a standard test cable can still be used to test the pins. The following register map describes the behavior of this feature:.
They use the DIO2 header pins as shown below:. This is done because there is not enough physical space available in the on-board CPLD for the different cores to be programmed simultaneously. The Cirrus EP features a 5 channel, bit Analog to Digital Converter with an analog multiplexer, having an input range of 0 to 3.
On the TS, three of the five available inputs are utilized to monitor board voltages, under software control. The remaining two channels are available for user signals. The monitored voltages are shown in the table below:. The DIO2 Port pins are shown in the next table. These can be used to measure analog signals in the range of 0 to 3.
To maintain bit accuracy, the analog signal being measured must have a low source impedance less than 10 ohms. It is important for the user program to use these values as per our sample code, which can be found either on our website or in the CD included in the Developer's Kit. Two reference points, 0 and 2. These signals are TTL compatible and use negative logic. The reset process using the DIO2 Header causes a full-system reset, exactly the same as if the power were cycled.
The 2 available clock sources are the The register 0 is used to set the XDIO mode and general configuration:. Registers are dependent upon the mode set on Bits of Register 0. The table below describes the remaining XDIO registers:. The header has been arranged to allow a pin ribbon cable to directly connect to industry standard LCD displays. Technologic Systems has a 2x24 LCD display available with software drivers for rapid development.
Because this port is interfacing to a 5V LCD, 1. This is required since the LCD data bus could be driving these lines above 3. If using these pins for general purpose DIO, the current sourcing and sinking capability of these DIO pins is limited by the 1. When these DIO pins are configured as outputs, they can source 4 mA or sink 8 mA and have logic swings between 3.
It is important not to change the other bit positions in these Port H registers since the other DIO pins are being used on the TS- These displays use a common controller, the Hitachi HD or equivalent.
While software written for the HD works with all displays using the controller, the cable needed is dependent on the display used. For most displays, a straight-through type ribbon cable can be used. The connector on the LCD display is typically mounted on the backside of the display. Note that the pin-outs in the above table are not the standard given for LCD displays.
However, these pin-outs allow a standard ribbon cable to be used when the ribbon cable is attached to the backside of the LCD. The JTAG header is also utilized for jumper configuration. See the Jumpers section of this manual for more details. Technologic Systems has made the design choice to save on board real-estate and not bring out the JTAG header.
If you need access to the JTAG pins, a skilled technician can solder wires to the pins. A quick release screw-down terminal block for the input power and GND connections are provided for easy connection to an external power supply. An unregulated or regulated 4. A current limited supply is recommended.
The TS incorporates software controlled power features making it useful in applications requiring battery power or where power consumption is an issue. Figure 5 is a block diagram illustrating this control. The 5V switcher will default to on, '1,' if the board is powered up with JP7 off. If the board is powered up with JP7 on, this bit is '0'.
Changing this bit during normal operation is not recommended. Contact Technologic Systems for more information. This bit should remain '0' for normal PC bus operation. See section COM3 header for more information. This will override any settings for those pins in the DIO registers. The least significant three bits of Model Register address, 0x are '' decimal 2 - TS unique code. Designers benefit from an established industry standard bus that already has well-developed documentation and many compatible peripherals available in the market place.
The presence of a compact form-factor PC compatible standard has encouraged the development of a broad array of off-the-shelf products, allowing a very quick time to market for new products. The mechanical specification allows for the very compact implementation of the ISA bus tailor made for embedded systems.
IEEE P This bus allows multiple peripheral boards to be added in a self-stacking bus. Typically each serial port has a dedicated interrupt, but the TS-SER4 peripheral board allows all four extra serial ports to share a single interrupt.
This is very helpful in systems with a large number of serial ports since there are a limited number of IRQ lines available. Documentation and support is provided by us as well. Controller Area Network CAN is a serial network primarily used in embedded systems that was originally designed for the automotive industry, but has also become a popular bus in industrial automation and other applications. Up to four boards can be installed in any single system.
Documentation and support for CAN application development are also provided. Regarding software support, an accelerated Linux framebuffer driver is available for TS-Kernel. Hardware accelerations were implemented and designed to mesh well with the capabilities of the Linux 2. Technologic Systems engineers carefully chose which functionality was implemented in hardware, which functionality was left out for software and which functionality was hard-coded in the bitstream.
The result is a higher speed design that is technically elegant and simple in good embedded systems fashion. The TS-7KV has dedicated video memory which allows CPU throughput and real-time response to remain fast and predictable, a clear advantage over devices which share system memory.
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Install in a Production Environment Install this package in the org where you or your users work, including Developer Edition orgs. Install in a Sandbox Test this package in a copy of a production org. Install in Sandbox. To install this package, you need a Salesforce account. Sign up for a free trial of Salesforce and we'll email you login credentials. Class "ts" has a number of methods. In particular arithmetic will attempt to align time axes, and subsetting to extract subsets of series can be used e.
However, subsetting the first or only dimension will return a matrix or vector, as will matrix subsetting. Subassignment can be used to replace values but not to extend a series see window. There is a method for t that transposes the series as a matrix a one-column matrix if a vector and hence returns a result that does not inherit from class "ts".
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