Hi,

I am working with EFM32 Wonder Gecko Starter kit (BRD2400A Rev A00) , i have interfaced a mems analog microphone(INMP401) to the expansion header (Pin no. 12 ,PD4 on MCU) available on board. I want to record audio samples from mic and save it in wav format to SDcard. I have successfully interfaced sdcard module to board and able to read and write files. Issue that i am facing over here is regarding reading ADC samples. I took this code from application note for single channel ADC configuration, but i am getting 4096 everytime i try to read from that channel.

void adcSingle(void)
{
  ADC_Init_TypeDef       init       = ADC_INIT_DEFAULT;
  ADC_InitSingle_TypeDef singleInit = ADC_INITSINGLE_DEFAULT;

  /* Init common settings for both single conversion and scan mode */
  init.timebase = ADC_TimebaseCalc(0);
  init.prescale = ADC_PrescaleCalc(ADC_CLOCK, 0);
  ADC_Init(ADC0, &init);

  //mic is connected to ADC0_CH4 which is pin 12 of expansion headers
  singleInit.input      = adcSingleInpCh4;
  singleInit.acqTime = adcAcqTime32;
  ADC_InitSingle(ADC0, &singleInit);

  ADC_Start(ADC0, adcStartSingle);
  
  /* Wait while conversion is active */
  while (ADC0->STATUS & ADC_STATUS_SINGLEACT)
    ;
  
 sampleValue = ADC_DataSingleGet(ADC0);
  
}

 

I can't post in AMA Forum

... make it "updated" but does not.

as an example I used it for the following

"you say it is OK, please mark as 'solved'" many do not check a thread after their problem is resolved and as a housekeeping matter getting 'solved' flags is important it saves a lot of unnecessary looks.

I do believe that all relevant should be in the forum, not in private correspondance, but a forum post does not necessarily alert the one you want to approach.

 

do nmot go off on a tangent, other matters are much more imporatnt, but make a note of the word breaks at end of line

Hi all,

We are using Silabs PoE controller in our design. Unfortunately, the design is not working as we expected. We are moving into production by the end of this month.

It will be great if I can get Silabs FAE contact or technical help. 

I came home for the weekend, turned on my home computer, and had to examine every forum I participate in.

 

This problem is more egregious since the issue was brought up bu several BEFORE the stupid cookie system was implemented

Hi, I am Ikram form India. I am looking for SOC solution for sine wave generation with programming in the range few MHz to 500 MHz. With tuning resolution in less than a KHz. Please share your suggestions, based on possibilities.

The WiFi forum seems to have been abandoned by SiLabs.  It's been 17 days since any employee answered any question there, as far as I can tell.  Out of a 1,300 person company, is there really no one tasked with keeping an eye on the forum?

stolen from another post

Replied 16 hours ago

some kba may helps （got from the i2c/smbus spec）

https://www.silabs.com/community/mcu/8-bit/knowledge-base.entry.html/2011/09/02/selecting_i2c_pullup-ej8M

https://www.silabs.com/community/mcu/8-bit/knowledge-base.entry.html/2017/06/09/i2c_pull-up_resistor-rJbx

when a thread is marked read it does not become unread when a post is added

@Nari See some SPAM post in the following links

https://www.silabs.com/community/wireless/zigbee-and-thread/forum.topic.html/tv_live_russia_v-53zW

https://www.silabs.com/community/wireless/zigbee-and-thread/forum.topic.html/hdq_live_russia_-YzQB

https://www.silabs.com/community/wireless/zigbee-and-thread/forum.topic.html/hd_live_russia_v-bRtf

 

How much longer do Silabs customers have to suffer this broken forum engine? It's been 7 months since the new version was introduced and I don't remember any progress since.

it used to

it has happened before in a moderate flahion, but today I had to click the SS forum 5 times before it 'took' the previous 4 I saw a flash and was back to :the forum list.

 

PS using Chrome

I've changed working place, but I cannot change my login (corporative e-mail), it gives me error "federation ID is mandatory", and technical support is writing on my old e-mail. Please, help!