Low Power RF & Wireless Connectivity

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Low Power RF & Wireless Connectivity

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  • Wiki Page: DN113 CC111xFx CC243xFx CC251xFx SPI Interface

    Glenn B
    This design note describes how to use the SPI peripheral for the Texas Instruments Low Power RF SoCs. http://www.ti.com/lit/swra223
    on Feb 24, 2012

  • Wiki Page: DN112 Using UART in CC111xFx CC243x and CC251xFx

    Glenn B
    This design note describes the key elements and simple usage of the CC111xFx/CC243xFx/CC251xFx/CC253xFx USART peripheral in UART mode. The main objective is to explain the CC111xFx/CC243xFx/CC251xFx/CC253xFx software required to operate the UART, with and without DMA support. The UART implements asynchronous...
    on Feb 24, 2012

  • Wiki Page: DN114 Test Signals For Debug Purpose in CC111xFx, CC251xFx and CC243x

    Glenn B
    The LPRF SoCs from Texas Instruments contains a few test signals useful to debug applications. These signals are for test purpose only and should not be used in the final application. http://www.ti.com/lit/swra241
    on Feb 24, 2012

  • Wiki Page: DN115 Using PWM for Dimmer Function in LED Lighting

    Glenn B
    This design note shows how to use CC251x PWM for dimmer functions in LED lighting applications. As the popularity of LED lighting increases, the CC251x single chip solution not only provides the wireless remote control functions but also dimmer function by using one of its built-in PWMs. By configuring...
    on Feb 24, 2012

  • Wiki Page: DN116 Clearing Module Interrupt Flags in LPW SoC Devices

    Glenn B
    The traditional software method for clearing module interrupt flags in TI’s 8051-based low power wireless System-on-Chip (LPW SoC) devices can unintentionally mask other interrupt flags. Depending on the peripheral and the application, these masked or missing module interrupts can lead to unexpected...
    on Feb 24, 2012

  • Wiki Page: DN117 SimpliciTI-compatible UART Driver

    Glenn B
    This design note introduces a UART driver that is compatible with the SimpliciTI TM low-power wireless networking protocol. This note describes the driver implementation, the process of adding the driver into an existing SimpliciTI project, and the basic driver API function calls. http://www.ti.com...
    on Feb 24, 2012

  • Wiki Page: DN118 Porting SimpliciTI to the SmartRF CCxx10 Target Board

    Glenn B
    The purpose of this design note is to show how to easily port the existing SimpliciTI examples to the SmartRF CCxx10 Target Board. The SmartRF CCxx10 Target Boards are included in the CCxx10 Mini DKs. http://www.ti.com/lit/swra311
    on Feb 24, 2012

  • Wiki Page: DN119 Asynchronous Serial Mode for CC111xFx and CC251xFx

    Glenn B
    The purpose of this design note is to show how the CC111xFx and CC251xFx can be configured for asynchronous serial mode. This mode can be used in applications that need to transmit and/or receive data packets not fitting with the standard packet format supported by the CC111xFx and CC251xFx. http...
    on Feb 24, 2012

  • Wiki Page: DN200 Using Constants in Code with Z-stack

    Glenn B
    The data model used for all Z-Stack projects, by default, copies constants into XDATA (RAM) during initialization. This reduces the amount of RAM that is available for application purposes. For most applications, this does not present a problem. Most constants used in Z-Stack are located in XDATA and...
    on Feb 24, 2012

  • Wiki Page: DN201 Using the Direct Join Request Feature in Z-Stack

    Glenn B
    In a typical Zigbee network, devices will automatically join the network and pick the best parent to join. The device will join as high up the tree as possible and will join the parent that has the highest LQI. In some applications, a more controlled topology may be required. The NLME direct join request...
    on Feb 24, 2012

  • Wiki Page: DN202 Choosing Optimal ZigBee Stack TX Power

    Glenn B
    When designing wireless systems it is important to choose and set the values for the transmit power (TX) with care. Using a very high transmit power will result in longer range, but will also generate more interference with other devices in radio range. For a simple point to point application that targets...
    on Feb 24, 2012

  • Wiki Page: DN300 SmartRF04EB Troubleshooting

    Glenn B
    This design note describes troubleshooting guidelines to solve problems related to communication with the SmartRF®04EB. A list of checkpoints presents questions that are normally asked when providing support for SmartRF®04EB. http://www.ti.com/lit/swra105
    on Feb 24, 2012

  • Wiki Page: DN301 Code Export from SmartRF® Studio

    Glenn B
    SmartRF® Studio provides a tool to export code. The function can be found under the file menu: Export <chip> code. The exported code can be copied and pasted into C-code as a structure, or the format can be modified to fit any custom format. http://www.ti.com/lit/swra106
    on Feb 24, 2012

  • Wiki Page: DN302 Register View in SmartRF Studio

    Glenn B
    This design note describes how the register view in SmartRF® Studio can be used to change specific registers of the connected CCxxxx device. http://www.ti.com/lit/swra107
    on Feb 24, 2012

  • Wiki Page: DN303 Cleanup of Installed PC Tools

    Glenn B
    Sometimes the uninstall procedure will not be able to remove all the installed components of a PC Tool. This document will describe how to find these components and to remove them manually. The description and figures are taken from Windows XP, but the procedure is not much different for Windows 2000...
    on Feb 24, 2012

  • Wiki Page: DN400 Interfacing CC1100 - CC2500 to the MSP430

    Glenn B
    The purpose of this design note is to show how to interface the CC1100 /CC2500 EM with the MSP430F1xx/41x family. An example shows the interconnection between the CC1100/CC2500 transceiver and the MSP430F169. The simple protocol is adapted from the TI software libraries. The software handles the transceiver...
    on Feb 24, 2012

  • Wiki Page: DN401 Interfacing CC1020/1 to the MSP430

    Glenn B
    The purpose of this design note is to show how to interface the CC1020 EMX to the MSP430F1xx/41x family. The example shows the interconnection between the CC1020/1 transceiver and the MSP430F169. The protocol defined in application note AN025 has been ported to the MSP430 where the main functionalities...
    on Feb 24, 2012

  • Wiki Page: Dn402 Simple Audio Loopback Using CC251X

    Glenn B
    The LPRF SoCs contains an ADC, a DAC and an I2S interface making it suitable for voice quality audio applications without using an external codec. The following design note shows how a simple mono loopback code can be implemented with μlaw encoding / decoding. http://www.ti.com/litv/pdf/swra138
    on Feb 24, 2012

  • Wiki Page: DN500 Packet Transmission Basics

    Glenn B
    The CC1100/CC1101/CC1150/CC2500/CC2500 all have extensive built-in packet handling support in hardware. This is to make it easier to implement packet oriented radio protocols in firmware. However, it can sometimes be difficult to know what features to use for a specific application. This design note...
    on Feb 24, 2012

  • Wiki Page: DN501 PATABLE Access

    Glenn B
    The CC1100/CC1101/CC1150/CC2500/CC2500 all have an eight bytes long PATABLE used for selecting PA power control settings. This design note will describe the different ways the PATABLE can be accessed and how the PATABLE for CC1150 and CC2550 is slightly different than it is for the CC1100, CC1101, and...
    on Feb 24, 2012

  • Wiki Page: DN502 CRC Implementation

    Glenn B
    This document gives an overview of the CRC implementation for the CC1100, CC1101, CC1110, CC1111, CC1150, CC2500, CC2510, CC2511, and CC2550. http://www.ti.com/lit/swra111
    on Feb 24, 2012

  • Wiki Page: DN503 SPI Access

    Glenn B
    The purpose of this design note is to show how the SPI interface must be configured to be able to communicate with the CC1100/CC1101/CC1150/CC2500/CC2550. It also shows how the status bytes should be interpreted, how SW reset is done over the SPI interface, in addition to describing the different SPI...
    on Feb 24, 2012

  • Wiki Page: DN504 FEC Implementation

    Glenn B
    This document gives an overview of the FEC implementation in the CC1100, CC1101, CC1110, CC1111, CC1150, CC2500, CC2510, CC2511, and CC2550. http://www.ti.com/lit/swra113
    on Feb 24, 2012

  • Wiki Page: DN505 RSSI Interpretation and Timing

    Glenn B
    The Received Signal Strength Indicator is a measure of the RF power input to the transceiver. The RSSI value is based on the gain setting in the RX chain and the measured signal level in the channel. In RX mode, the RSSI value can be read continuously from the RSSI status register until the demodulator...
    on Feb 24, 2012

  • Wiki Page: DN506 GDO Pin Usage

    Glenn B
    CC1100, CC1101, and CC2500 have three digital output pins, GDO0, GDO1, and GDO2, which are general control pins configured using IOCFG0.GDO0_CFG, IOCFG1.GDO1_CFG, and IOCFG2.GDO2_CFG respectively. There are several different signals that can be monitored on the GDO pins and hence be useful for the MCU...
    on Feb 24, 2012
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