Solutions Browser
Jennic Solutions is a knowledge database based on common technical support issues we encounter. Use the filter fields to refine your search to a particular area of interest or click the links below to see the latest and popular solutions.
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How do I read the on chip Temperature Sensor? The Internal temperature sensor can be selected as an input to the ADC using the AHI function calls ... solution00028 2010-05-28 Hardware » Function » Misc |
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How do I identify a Jennic chip on the network? What is Jennic's IEEE address? Jennic has the IEEE Organisationally Unique Identifier (UID) 0x00158D, which will be the top 24-bits of the ... solution00003 2008-05-01 Hardware » Function » programming |
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How do I read the JN51xx MAC address? The MAC address location can be found by calling pvAppApiGetMacAddrLocation() The prototype can be found in ... solution00007 2008-05-01 Hardware » Function » programming |
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What sample frequencies can the ADC support? The input clock to the ADC is 16MHz and can be divided down to 2MHz, 1MHz, 500kHz and 250kHz. During an ADC ... solution00027 2010-05-21 Hardware » Function » programming |
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How are the LQI and MSQ values for received data packets calculated? The LQI value generated whenever a data frame is received is based upon the signal strength. The JN5121 ... solution00004 2008-05-01 Hardware » Function » RF Power |
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How do I set the output power of the radio? The Tx power can be dynamiclly changed by calling eAppApiPlmeSet(PHY_PIB_ATTR_TX_POWER,level) For example: bool_ ... solution00008 2010-05-07 Hardware » Function » RF Power |
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How can I read the state of the PROGRAM pin (SPI MISO, pin 34) without
losing the SPI function ? Although undocumented in JN-RM-2001 Integrated Peripherals Api it is possible to read the status of the ... solution00030 2010-07-20 Hardware » Interface » programming |
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How do I read from (and write to) the UART ? The Jennic SDK contains a number of routines for writing data to the UART, (notably vPutC and vPrintf in C:\Jennic\cygwin\jennic\SDK\Chip\Common\Source\Printf. ... solution00018 2009-03-09 Hardware » Interface » programming |
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Are there any USB dongles available that use JN51xx devices? Although Jennic do not produce USB dongles they are available from several third parties: MSP Technology ... solution00009 2008-04-02 Hardware » Interface » USB |
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What are the minimum connections required for programming modules? 1) Connect power and ground on pins 24 (VDD), 25 (GND) & 26 (VSSA). 2) Ensure that pins 9 (SSZ) and 13 ... solution00001 2008-03-03 Hardware » JN5139 » programming |
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How can I achieve 100nA Deep Sleep Current consumption on the JN5148 You will need to add some external circuitry to isolate the flash. By placing a NFET between the flash GND ... solution00026 2010-05-05 Hardware » JN5148 » Current Consumption |
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What do the Jennic JN51xx Flash Programmer error messages mean? There are three common problems in programming a module. 1. Module is not in program mode. This will result ... solution00029 2010-07-19 Hardware » Modules » Misc |
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When I connect my hardware to the Jennic flash programmer it shows the MAC address (64-bit IEEE Address) is 0xffffffffffffffff. If your hardware contains a Jennic module then it will have been programmed with a MAC address during manufacture. ... solution00016 2008-05-19 Hardware » Modules » programming |
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Are the 333kHz spurs seen when measuring the transmit power in continuous wave mode normal? Transmit output power can be measured using the JN-AN-1021 Module Lab Test Utility. The 'Transmit Power Test ... solution00013 2008-05-01 Hardware » Modules » RF Power |
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My application requires longer distances between nodes, how can you support this? The Jennic 'JN5139-xxx-M02/04' High Power Modules are high RF power, improved sensitivity modules for extended ... solution00010 2008-04-07 Hardware » Modules » RF Power |
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What distance can the radio cover? This largely depends on the antenna being used, module output power and environment. We have seen reliable ... solution00011 2008-04-07 Hardware » Modules » RF Power |
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What transmit output power restrictions exist for the Jennic high power module in the US/Canada and Europe ? In Europe, the high power module transmit power must be restricted to 10dBm (including the antenna gain). ... solution00002 2008-09-08 Hardware » Modules » RF Power |
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I have two coordinators working on different channels 11 and 12. When I do an active scan with an end device with all channels set I only get the first coordinator (that one working on channel 11). If I turn off the coordinator on channel 11 then I get the coordinator on channel 12 as result of the active scan. I always only get the description of 1 coordinator and it is always the one with the lowest channel number. Where is the problem? The active scan only lists unique entries in the scan response. So if the 2 coordinators have the have ... solution00006 2008-05-10 Network/Stack API » IEEE802.15.4 » Active Scans |
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When I do an active scan with an end device I do not see any beacon notifications, MAC_MLME_IND_BEACON_NOTIFY? If the beacon payload of the received package does not contain any data, the event MAC_MLME_IND_BEACON_NOTIFY ... solution00020 2008-10-24 Network/Stack API » IEEE802.15.4 » Active Scans |
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Can IEEE 802.15.4 coexist with other radio systems? Yes, the IEEE 802.15.4 standard has been specifically designed to coexist with other radio systems operating ... solution00012 2008-05-10 Network/Stack API » IEEE802.15.4 » Misc |
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How do I set up a Jenie network to support X end device nodes ? Each Jenie co-ordinator or router node supports up to 10 children. So a single co-ordinator node would be ... solution00019 2009-02-12 Network/Stack API » Jenie » Installation |
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Why does my Jenie application no longer start after changing the device type ? The Jenie networking stack is implemented in two library files: Jenie_TreeCRLib.a for Coordinator and ... solution00023 2009-01-29 Network/Stack API » Jenie » programming |
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Do I need to be a member of the ZigBee Alliance to use your ZigBee stack? If you are using the Jennic ZigBee stack in a commercial product then you need to be a member of the ... solution00014 2008-05-10 Network/Stack API » Zigbee » Misc |
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I'm designing a ZigBee based product, do I need to get this certified/tested for compliance to the ZigBee standard? If you wish to use the ZigBee logo then your product must undergo certification. Test programs are available ... solution00015 2008-05-10 Network/Stack API » Zigbee » Misc |
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The Flash Programmer fails to start on a new SDK installation. In order for the new SDK installation to work the old config.txt (found here C:\Jennic\cygwin\jennic\flashprogrammer ... solution00005 2008-05-10 SDK » Flash Programmer » Installation |
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How can I tell how much memory an application is using? The amount of memory used by an application can be determined by using the ba-elf-size utility. This can be ... solution00022 2008-10-23 SDK » Function » Misc |
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How do I use floating point Maths? To use floating point maths functionality on the JN5139 1. Include the math.h header file in the source file ... solution00024 2010-06-30 SDK » Function » programming |
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How can the results returned by an IEEE 802.15.4 Energy Scan be interpreted on a JN5139? The IEEE 802.15.4 MAC provides a mechanism for measuring the energy present on one or more channels (MLME- ... solution00017 2008-10-03 SDK » IEEE802.15.4 » Misc |
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