It is really frustrating not being able to find any kick starting tutorial that helps an absolute beginner with writing code in RAIL. I am working with an EFR32FG kit.

The whole thing is confusing, and very abstract. I am trying to write code to transmit and receive packets using HDLC-like frame format with custom/open-source networking protocol on top. All of this on a non-ISM  UHF frequency.

The existing "getting started" docs I found are lame and only explain the obvious. It is lazy and and poor.

We have a really good product here (the Flex Gecko module) but without PROPER learning resources, it is useless. 

It is really frustrating not being able to find any kick starting tutorial that helps an absolute beginner with writing code in RAIL. I am working with an EFR32FG kit.

The whole thing is confusing, and very abstract. I am trying to write code to transmit and receive packets using HDLC-like frame format with custom/open-source networking protocol on top. All of this on a non-ISM  UHF frequency.

The existing "getting started" docs I found are lame and only explain the obvious. It is lazy and and poor.

We have a really good product here (the Flex Gecko module) but without PROPER learning resources, it is useless. 

It is really frustrating not being able to find any kick starting tutorial that helps an absolute beginner with writing code in RAIL. I am working with an EFR32FG kit.

The whole thing is confusing, and very abstract. I am trying to write code to transmit and receive packets using HDLC-like frame format with custom/open-source networking protocol on top. All of this on a non-ISM  UHF frequency.

The existing "getting started" docs I found are lame and only explain the obvious. It is lazy and and poor.

We have a really good product here (the Flex Gecko module) but without PROPER learning resources, it is useless. 

Hi,

I got the Flex Gecko 2.4 GHz and 915 MHz Proprietary Wireless Starter Kit (SLWSTK6060B) and I am using the Gecko SDK Suite v2.4.1: EmberZNet 6.4.1.0, Flex 2.4.1.0. I want to use UART to transmit data into one Mighty Gecko and transmit the data into another Mighty Gecko using Sub-GHz. I have been exploring some software examples to try out if I can do so, the one that I was trying out more was the wire-replacement(SoC) example. However, I have not gotten any success in transmitting the data through UART. Hope that I can get some advice or suggestions from here on how I can move on.

Thanks!

Hi, can you provide an example for getting an iSR every microsecond under MICRIUM (hard real time needed) on an EFR32MG13 system ? SystemCoreClockGet() returns with 19MHz.; OSTimeDly(1000) duration is 1sec.

I have experiencing problem with CPU_TS_Get32() return. The first call returns a value (30519 for example) but next calls to this function return always 30519 !! [OSTimeGet() works]. Calling CPU_TS_Update() have no impact. CPU_TS_TmrFreqGet() returns 0 !. CPU_TS32_to_uSec() works.

Thank you!

Hi,

In my company we are using customized efr32mg12p433 board, I am using SOC- EMPTY-RAIL -DMP PROJECT and in that I am trying to run this in my main program to glow my led

CHIP_init()

CMU_clockEnable(gpioportD, true);

Gpiopinmodeset(gpioportd,13,gpiomodepushpull,1);//glow blue

delay()

Gpiopinmodeset(gpioportd,14gpiomodepushpull,1); //glow green

but the problem is I am not able to glow my led.

can you please help me out here!!

The documentation for RAIL_ConfigMultiTimer() says that it adds a software timer layer so you can have as many timers as you want, but RAIL_SetTimer() does not say there is any limit to the number of non multi timer timers you can set, so what is the purpose of the multi timers then?

Hi,

I got the Flex Gecko 2.4 GHz and 915 MHz Proprietary Wireless Starter Kit (SLWSTK6060B) and I am using the Gecko SDK Suite v2.4.1: EmberZNet 6.4.1.0, Flex 2.4.1.0. I was following the "QSG138: Getting Started with the Silicon Labs Flex Software Development Kit for the Wireless Gecko (EFR32™) Portfolio" quick start guide and followed the software example of Connect which was the wire replacement. I succeeded in generating the application files but couldn't build the binary image.

The error is:

./main/EFR32/stack-handlers.o: In function `emberEnergyScanCompleteHandler':
C:\Users\HongYuan\SimplicityStudio\v4_workspace\wire-replacement\GNU ARM v7.2.1 - Default/../main/EFR32/stack-handlers.c:168: undefined reference to `emberAfEnergyScanCompleteCallback'
./flex-cli.o:(.rodata.emberCommandTable+0x4): undefined reference to `counterCommand'
./flex-cli.o:(.rodata.emberCommandTable+0x14): undefined reference to `dataCommand'
./flex-cli.o:(.rodata.emberCommandTable+0x34): undefined reference to `infoCommand'
./flex-cli.o:(.rodata.emberCommandTable+0x54): undefined reference to `pollCommand'
./flex-cli.o:(.rodata.emberCommandTable+0x74): undefined reference to `setSecurityKeyCommand'
./flex-cli.o:(.rodata.emberCommandTable+0x84): undefined reference to `setTxOptionsCommand'
./flex-cli.o:(.rodata.emberCommandTable+0x94): undefined reference to `setTxPowerCommand'
./flex-cli.o:(.rodata.emberCommandTable+0xa4): undefined reference to `startEnergyScanCommand'
./flex-cli.o:(.rodata.emberCommandTable+0xb4): undefined reference to `startMasterCommand'
./flex-cli.o:(.rodata.emberCommandTable+0xc4): undefined reference to `startSlaveCommand'
./flex-cli.o:(.rodata.emberCommandTable+0xd4): undefined reference to `startSleepySlaveCommand'
collect2.exe: error: ld returned 1 exit status

Hope someone can help me with this issue.

Thank you,

Hong Yuan

Hi

I started with fix packet length and everything works fine. I have 2 boards each is transceiver and i manage to transmit and receive from each of them. 

one of the boards is a master the other is slave. the protocol is as described below:

1. Master sends a initial status packet
2. Slave Acknowledges
3. Master send command packet
4. Slave Acknowledges

i tried to move to variable packet length.  i used the same protocol with fixed length as i did in the fixed length SW i wrote.

i changed the code to fit the variable length packet. i used the code from the WDS example.

i encounter the following problem:

1. Master sends the initial status packet
2. Slave receives the packet and send the Ack. i get positive indication from slave that packet was transmitted.
3. Master doesn't get the response. it is even worse, i use the following code to check if packet is received:

4. BIT gRadio_CheckReceived(void)
   {
   if (RF_NIRQ == FALSE)
   {
   /* Read ITs, clear pending ones */
   si4455_get_int_status(0u, 0u, 0u);

   /* check the reason for the IT */
   if (Si4455Cmd.GET_INT_STATUS.PH_PEND & SI4455_CMD_GET_INT_STATUS_REP_PACKET_RX_PEND_BIT)
   {
   /* Packet RX */

   si4455_fifo_info(0x00);

   si4455_read_rx_fifo(Si4455Cmd.FIFO_INFO.RX_FIFO_COUNT, &customRadioPacket[0]);

   return TRUE;

   }

   if (Si4455Cmd.GET_INT_STATUS.PH_PEND & SI4455_CMD_GET_INT_STATUS_REP_CRC_ERROR_BIT)
   {
   /* Reset FIFO */
   si4455_fifo_info(SI4455_CMD_FIFO_INFO_ARG_RX_BIT);
   }
   }

   return FALSE;
   }

5. the problem is that RF_NIRQ is not going to 0 at all.
6. the same HW with similar code is working fine for the fixed packet.
7. what can be the reason the device is not receiving the packet?

thanks

sudry6 

Hello

I'm struggling a bit to correctly receive variable length packets with a Si4455 transceiver (rev B1).

I configured it to use variable length packets with CRC (transmit and check on receive), but I can only receive packets that have the length configured in WDS. For any other length, lower or higher, I get a CRC error. Defeats a bit the purpose of the variable length... 

I start RX with a packet length of 0, and I'm sending the full packet with the length byte first. However I can't find any documents where all that is explained anymore, I based my code on notes I have from a long time ago when I didn't tested the variable length part. Pretty sure it's right, but maybe not?

If I disable the CRC altogether:

- If I send a packet larger that configured in the config, 8 bytes in my case, I only receive 8 bytes in the receiver.

- If I send the same length, no issue.

- If I send less bytes, I always receive one extra byte (its value seems random).

I joined my config XML from WDS (3.2.11.0). Same configuration on both transceivers (I use a Zeta module from RFSolutions and an Arduino board).

In fixed packet length mode, no issues at all.

What do I do wrong? Any ideas or code sample that might help would be welcomed! Or maybe a document I missed?

Thank you,

Have a nice day,

Benjamin

Hi,

My Si446x communicates with a device with TI CC1101 RF chip over 868MHz. I already matched the frequency setting for both. Here is the setting for Si446x. (FYI, we don't have access to change the CC1101 frequency setting)

Center frequency: 868.3 MHz
Modulation type: 2GFSK
Data rate: 38400 bps
Deviation: 50kHz
RX bandwidth: Auto calculation

According to the device's protocol documentation, I expect to receive the following header bytes from CC1101.
55 FF 00 33 55 AC <and some payload>
But the moment the device is sending data, I measure in Si446x the following.
55 FF 00 59 95 54

On Si446x, I tried disabling the packet handler and measured using logic analyzer directly from GPIOs (RX_DATA and RX_DATA_CLK flags are enabled). The data I measure is still that incorrect 55FF005995. Before I'm looking at the CC1101, I would like to be sure that I don't miss some RX setting in my Si446x. Anyone can point me out what could have been mismatched in the RF setting on Si446x that could cause this incorrect packet demodulation?

Thanks in advance
Dion

Excuse me, i had made a question about this topic here, but got no answer.

I need to save a 32bit variable in nvm, but both drivers, nvm or nvm3 is not working following the examples on documentation page.

http://devtools.silabs.com/dl/documentation/doxygen/5.5/efr32fg13/html/group__NVM.html

http://devtools.silabs.com/dl/documentation/doxygen/5.5/efr32fg13/html/group__NVM3.html 

Could someone help me please?

Thank you.

Best regards!

These are my choices when I navigate to "Ask a Question" after browsing to "Community":

8-bit ›32-bit ›Bluetooth ›Interface ›Isolation ›Proprietary ›Sensors ›Simplicity Studio ›Thunderboard ›Timing ›Wi-Fi ›Zigbee and Thread ›Z-Wave ›

I have posted 2 threads (under Proprietary) and had them moved to the "correct" forum, something like "Audio and FM" - except now I don't know how to find that forum and I see no way to post there.  This Silicon Labs "forum" seems very confusingly set up.  Can someone tell me where is the correct place for FM Rx/Tx project (e.g. Si4713) posting and how to navigate there?

Thanks, -Rick

Hi all,

I'm working on a new design with an Si4463 for 169MHz, Class-E switched 27dBm.
The reference design https://www.silabs.com/documents/public/schematic-files/4463CPSQ27F169.zip uses an UPG2415T6X chip as RF-switch.
Unfortunately this switch is obsolete (https://www.digikey.de/product-detail/en/cel/UPG2415T6X-A/UPG2415T6X-A-ND/2614764?cur=EUR&lang=en)

Is there any replacement, which would be hopefully available for the next years, as this product is planned to be produced for a long period of time.

Many thanks!