Hi again,

I had to use the forum again over the last weeks and it quickly became apparent that nobody uses the (continuously resetting) Sort By Last Updated setting. The result is that all my replies to older threads got completely ignored. The only solution was to start new threads, which then lack all the old context. I wonder if this is really how you envision the forum should be used?

Tagging previous participants doesn't work either.

Viewing the list only shows how many replies there are, but not when or by whom the last reply was made. This means that to check if there maybe is an update I should remember myself how many replies there were the last time I looked. Does anybody really think that everyone can remember those number for all threads?

Is it really so difficult to get this fixed? And if the answer is yes, why don't you revert to the old forum engine that had this all properly covered? Why is Silabs so hard trying to p*ss us off?

Maarten

if, in your answer, you include @joeblow does joeblow get notified?

Hi,

When browsing the forum on a netbook with a screen of 1024 pixels wide, using Firefox on Linux, I can no longer reach any forum but the Expert's Corner. The menu bar is split while there is plenty of room on the right. And clicking e.g.MCUs does not make the submenu stick.

Please fix this (for the second time)

Maarten

Recently, I have some trouble to click Answer button to reply some post such as https://www.silabs.com/community/wireless/zigbee-and-thread/forum.topic.html/can_t_find_threadde-CvJe which I would like to replied the following content on latest FireFox version.

I am not sure what you want and there might be nothing match your request exactly. However, I also list some useful knowedge base post as in the followings for your reference.

https://www.silabs.com/community/wireless/zigbee-and-thread/knowledge-base.entry.html/2016/12/26/building_siliconlab-4Hbt

https://www.silabs.com/community/wireless/zigbee-and-thread/knowledge-base.entry.html/2018/12/31/building_a_threadro-hXwQ

https://www.silabs.com/community/wireless/zigbee-and-thread/knowledge-base.entry.html/2016/12/26/building_a_threadro-GeDq

https://www.silabs.com/community/wireless/zigbee-and-thread/knowledge-base.entry.html/2016/12/26/building_a_threadro-rYJ0

However, if I use Chorme, there is no such problem.

I also have similar issue on another post https://www.silabs.com/community/wireless/zigbee-and-thread/forum.topic.html/emberznet_emberafcor-RIbX.html. Hope you can check this and fix it.

By the way, I cannot create this new topic when I want to raise it from Firefox and I finally use Chrome to post this issue.

I usually see duplicate posts and I guess this is cause by  double-click "Ask" or "Answer" button accidentally. I would suggest SL to implement debounce logic to avoid such issue.

8 bit forum edit/save works here

Is anybody else having problems when hitting the back button on a page greater than the first page giving a server error?

Hello everyone,

I want to make a small project. Through the open of the circuit switch,
I can control music playback. When I push the switch button, it circularly play the song "dream wedding"(2 minutes) .
My requirement is that the volume need to be controlled in a size of a dictionary.
Who can tell me the specific requirements of how to do, including the required electronic components and circuit diagram.
And attaching the specific cost, thanks.

For the Si5332, QFN-32 package, GPI inputs (INPUT1-5), is an external pull-up resistor required on these pins if they are unused or can they be left floating on the PWB?

Hello, I met a question about the use of EFR32BG21 BLE，When I use Bluetooth broadcast in em2 mode, I can't connect successfully with my mobile phone. But it can be used in normal power consumption mode. No 32768k crystal oscillator is used outside my hardware device. Can I use the internal 32768 crystal oscillator configuration to make my device connect to Bluetooth in em2 mode? If I can, I need to configure my clock.

Hi,

Please advise:

1. Is there a possibility to fix spelling errors when I`m writing at the Forum ? 

2. Is there a possibility to see only my questions , sometime it is very convenient.

Thanks

When a green power device (GPD) communicates with Proxy/Sink, it seems good to have MAC ACK to ensure the communication robustness like unicast in ZigBee PRO. However, I saw that all communications between GPD and Proxy are broadcasts in EmberZNet, where MAC ACK makes little or no sense. I saw somewhere mentioned that MAC ACK is optional for green power. Is MAC ACK for green power communication implemented for EmberZNet v6.6.4.0? Or MAC ACK for green power is nonsense.

Hi,

 

I am trying the lowest frequency the Si5351A can generate. Datasheet said the frequency range is from 2.5KHz to 200MHz. But when I tried, the lowest frequency that I am able to generate is roughly 760Hz. Here is the parameter

 

XTAL = 25MHz

MSNA_P1 = 0, MSNA_P2 = 0, MSNA_P3 = 0xfffff

MS0_P1 = 0xfffff, MSNA_P2 = 0, MSNA_P3 = 0xfffff

R0_DIV = 111 (Divide by 128)

 

 

So why is this?

 

There are two more questions

1 . What's the Register 44 MS0_DIVBY4 does? There is no explnation in AN619.

2. In AN619  Section 4.1.2, in a+b/c, is there any restriction on chossing the value b and c. For example, can I choose c = 1? Or b must be less than c so that b/c is a fraction number? 

 

 

Now i testing for Si5351A[3 output] Clock generator and i want to control it directly with I2C

I am experimenting with a code that output only CLK0 with a test, but the desired output is not coming out!

Please check if there are any settings that need to be added or changed

[Desired setting]

(PLL A)

Input Frequency(MHz)=25

VCO Frequency(MHz)=700

Feedback Divider=28

(OUTPUT CLK 0)

Output Frequency(MHz)=87.5

Multisynth output Frequency(MHz)=87.5

Multisynth Divider =8

R Divider =1

PLL Source = PLLA

●Test Result

1. When Fanout(Register 187) setting is disabled, the desired output does not come out and CLK0 pin status is low.

2. When Fanout(Register 187) setting is enabled, only XTAL frequency of 25MHz is output

● Setup code

 /* SI5351A Output disable, powerdown */
   I2C_Write(0xC0, 0x03, 0xFF);    // CLKOutput Disable
 
   DelayUs(I2C_TM_SCL_TMO);
    
   /* SI5351A clk2-0_Output configuration */
   I2C_Write(0xC0, 0x10, 0x43);    // CLK0 use PLLA,integer mode, Drive : 8ma ,Register 16
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x11, 0x43);    // CLK1 use PLLA,integer mode, Drive : 8ma, Register 17
  
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x12, 0x43);    // CLK2 use PLLA,integer mode, Drive : 8ma, Register 18
 
   DelayUs(I2C_TM_SCL_TMO);
  

   /* SI5351A PLLA setting */
   I2C_Write(0xC0, 0x1A, 0x00);    // MSNA_P3[15:8], Register 26
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x1B, 0x00);    // MSNA_P3[7:0],  Register 27
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x1C, 0x00);    // MSNA_P1[17:16], Register 28
 
   DelayUs(I2C_TM_SCL_TMO);

   I2C_Write(0xC0, 0x1D, 0x00);    // MSNA_P1[15:8], Register 29
 
   DelayUs(I2C_TM_SCL_TMO);
 
   I2C_Write(0xC0, 0x1E, 0x1C);    // MSNA_P1[7:0] 8h`0x1c integer : 28 , 25*28 = 700MHz = PLLA ,Register 30
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x1F, 0x00);    // MSNA_P3[19:16],MSNA_P2[19:16] , Register 31
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x20, 0x00);    // MSNA_P2[15:8], Register 32
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x21, 0x00);    // MSNA_P2[7:0], Register 33
 
   DelayUs(I2C_TM_SCL_TMO);
  
  
   /* SI5351A Multisynth0(clk 0) setting */
   I2C_Write(0xC0, 0x2A, 0x00);    // MS0_P3[15:8], Register 42
 
   DelayUs(I2C_TM_SCL_TMO);

   I2C_Write(0xC0, 0x2B, 0x00);    // MS0_P3[7:0], Register 43
 
   DelayUs(I2C_TM_SCL_TMO);
 
   I2C_Write(0xC0, 0x2C, 0x00);    // R0_DIV:000 , MS0_DIVBY4:00, MS0_P1[17:16], Register 44
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x2D, 0x00);    // MS0_P1[15:8], Register 45
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x2E, 0x08);    // MS0_P1[7:0], Register 46 PLLA=700MHz/Div(8),CLK0 output=87.5MHz
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x2F, 0x00);    // MS0_P3[19:16], MS0_P2[19:16], Register 47
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x30, 0x00);    // MS0_P2[15:8], Register 48
 
   DelayUs(I2C_TM_SCL_TMO);
  
   I2C_Write(0xC0, 0x31, 0x00);    // MS0_P2[7:0], Register 49
 
   DelayUs(I2C_TM_SCL_TMO);
  
  
   /* SI5351A PLL reset setting */
   I2C_Write(0xC0, 0xB1, 0xAC);    // PLLA, PLLB Reset, Register 177
 
   DelayUs(I2C_TM_SCL_TMO);
  
   /* SI5351A  Cystal internal load capacitance setting */
   I2C_Write(0xC0, 0xB3, 0xD2);    // 8b[11010010], Register 183
 
   DelayUs(I2C_TM_SCL_TMO);
  
   /* SI5351A  Fanout Enable/Disable setting */
   I2C_Write(0xC0, 0xBB, 0xD0);    // eable clock output multiplexers , Register 187
 
   DelayUs(I2C_TM_SCL_TMO);
     
   /* SI5351A output enable setting */
   I2C_Write(0xC0, 0x03, 0x00);    // clk7-0 output enable, Register 3

 

There was a problem to control the si4735 ic.
Previous question was resolved.
get_riv command was operating.
I set the frequency.
But to read the frequency value command failed to execute.
(Get_int_status and fm_tune_status)
Why does not it work?

Attach the schematics and source code below.
please answer about my question.

 

//source code//

 

void power_up(){

   i2c_start();
   i2c_write(0x22);
   i2c_write(0x01);
   i2c_write(0x10);
   i2c_write(0x05);
   i2c_stop();
   delay_ms(200);
}

 

void get_rev(){        // it's work!!
   int d0=0xaa,d1=0xaa,d2=0xaa,d3=0xaa,d4=0xaa,d5=0xaa,d6=0xaa,d7=0xaa,d8=0xaa;
  
   i2c_start();
   i2c_write(0x22);
   i2c_write(0x10);
   i2c_stop();
  
   delay_ms(10);
  
   i2c_start();
   i2c_write(0x23);
   d0 = i2c_read();
   d1 = i2c_read();
   d2 = i2c_read();
   d3 = i2c_read();
   d4 = i2c_read();
   d5 = i2c_read();
   d6 = i2c_read();
   d7 = i2c_read();
   d8 = i2c_read(0);
   i2c_stop();
  
   printf(lcd_putc,"\a%x %x %x %x\n%x %x %x %x %x",d0,d1,d2,d3,d4,d5,d6,d7,d8);
  
   delay_ms(100);
}

 

void fm_tune_freq(int16 x){ // but it is not work!!
   int fre_h,fre_l;
   fre_h=(x>>8)&0xff;
   fre_l=x&0xff;
  
   i2c_start();
   i2c_write(0x22);
   i2c_write(0x20);
   i2c_write(0x00);
   i2c_write(fre_h);
   i2c_write(fre_l);
   i2c_stop();
  
   delay_ms(1);
}

 

void get_int_status(){
   int a;
  
   i2c_start();
   i2c_write(0x22);
   i2c_write(0x14);
   i2c_stop();
  
   i2c_start();
   i2c_write(0x23);
   a=i2c_read(0);
   i2c_stop();
  
   lcd_clear();
   printf(lcd_putc,"\a%x",a);
}

 

void fm_tune_status(){

   int d0,d1,d2,d3,d4,d5,d6,d7;

 

   i2c_start();

   i2c_write(0x22);

   i2c_write(0x01);

   i2c_stop();

  

   delay_ms(10);

 

   i2c_start();

   i2c_write(0x23);

   d0 = i2c_read();
   d1 = i2c_read();
   d2 = i2c_read();
   d3 = i2c_read();
   d4 = i2c_read();
   d5 = i2c_read();
   d6 = i2c_read();
   d7 = i2c_read(0);
   i2c_stop();

 

   lcd_clear();

   printf(lcd_putc,"\a%x %x %x %x\n%x %x %x %x",d0,d1,d2,d3,d4,d5,d6,d7);

}

 

void main(){

   lcd_init();

   power_up();

   get_rev();  // it is work.

   fm_tune_freq(10230);

   get_int_status();  //data is 080, not 0x81.

   fm_tune_status();  // it's not work.  data is 0x80 0x00 0x00 0x00

                                                                        0x00 0x00 0x00 0x00

}