The P0.0/P0.1 is the IDA0/IDA1 output pin of C8051F410. An amplifier is connected to P0.0/P.1. While reseting the output of P0.0/P.1 is not zero. This will cause a huge pulse occur on the output of amplifier while C8051F410 reseting.  How to resolve?

I'm getting familiar with the efm8 lines for a year and now have a project requiring usb. 

I'm not sure how to extract data off the RX_Packet. At which point is the data stored. 

Let's say I want to send uint8 DATA, how do I apply that to TX_Packet array?  

I can't just make it RX_Packet[0] = DATA;   Right? 

 

I played with echo demo and what ever change I make it crashes. 

Rafal

I've been doing a bit of research into getting a low-power microcontroller onto a breakout board, and it seems like the Toolkit daughter boards are just the ticket.  When I look on the Toolkit daughter board page, I noticed that the columns for the C8051F96x daughter boards are blank.  Does this mean that there are no daughter boards for these chips?

Is there a comparable Toolkit style of breakout-board availability for any of the 32-bit MCUs?  There are plenty of times when I want to incorporate a microcontroller into a project, but I don't want to slap a full development kit into a box, or drag out the solder paste and outsource a PCB...

Hi,

I currently have a function for the EFM8B1 like this:

bool DecodeData(uint16_t duration,
		SI_VARIABLE_SEGMENT_POINTER(durations, uint16_t, SI_SEG_CODE),
		uint8_t bit_count)

 

I call this function from 2 places. One time with a constant located in SI_SEG_CODE for the durations parameter. This is working without problems.

But now I want to use the function also for dynamic data and I try to call it with data located in SI_SEG_XDATA for the durations parameter.

How to handle this?

 

SI_SEGMENT_VARIABLE(durations_array[7], uint16_t, SI_SEG_XDATA);

SI_SEGMENT_POINTER(pdurations_array, uint16_t, SI_SEG_CODE);


*pdurations_array = durations_array;
DecodeBucket(duration, pdurations_array, count);

I tried it also this way but it is also not working:

SI_SEGMENT_VARIABLE(durations_array[7], uint16_t, SI_SEG_XDATA);

SI_SEGMENT_POINTER(pdurations_array, uint16_t, SI_SEG_CODE) = durations_array;


DecodeBucket(duration, pdurations_array, count);
 

 

SI_VARIABLE_SEGMENT_POINTER(array, static char, SI_SEG_XDATA);

SI_SEGMENT_VARIABLE_SEGMENT_POINTER(array,  static char, SI_SEG_XDATA, SI_SEG_XDATA);

What's the difference between these initialization variables?

 

Hi.

We are using c8051f411 for our products.
Please let me know if you have a plan to discontinue c8051f411.

Thanks 

Regards

Hello and thank you in advance.

I am new to C, ASM, and programing Micro-Controllers in general out side of the Arduino IDE etc.  Now normally when coming to something new I think to my self "RTFM!!!" and "Google is your friend".  I have the data sheet for my EFM8UB20f64G-B-QFP32 https://www.silabs.com/documents/public/data-sheets/efm8ub2-datasheet.pdf and the Reference Manual https://www.silabs.com/documents/public/reference-manuals/EFM8UB2-RM.pdf and though they have good information there is no actual reference to real code and what values to change to attain the described results.  Over the course of the last few days I've hack and slashed through Simplicity Studio examples to try and get some sort of idea of how to implement things but again everything is so vague.  I found SI_EFM8UB2_Register_Enums.h which seems like the right direction but again there's no explanation of how to implement those elements.

For example this EFM8UB2_Blinky.c code does infact blink an LED I have hooked to Port 0 Pin 1 on my custom board...

#include <SI_EFM8UB2_Defs.h>
#include <SI_EFM8UB2_Register_Enums.h>

#define SYSCLK       48000000/4/8

SI_SBIT(LED, SFR_P0, 1);

void Port_Init (void);
void Timer2_Init (int counts);

void SiLabs_Startup (void)
{
   PCA0MD &= ~PCA0MD_WDTE__BMASK;
}

void main (void)
{
   SFRPAGE = 0x00;              // Configure for PCA0MD
   // Disable the watchdog timer
   PCA0MD = PCA0MD_CPS__SYSCLK_DIV_12 | PCA0MD_CIDL__NORMAL | PCA0MD_ECF__OVF_INT_DISABLED
         | PCA0MD_WDTE__DISABLED | PCA0MD_WDLCK__UNLOCKED;
   Port_Init ();
   Timer2_Init (SYSCLK / 12 / 10);     // Init Timer2 to generate interrupts
                                       // at a 10 Hz rate.

   IE_EA = 1;                          // Enable global interrupts
   LED = 1;
   while (1) {}                        // Spin forever
}

void Port_Init (void)
{
   P1MDOUT |= 0x40;                    // Enable LED as a push-pull output
   XBR0 = 0x00;
   XBR1 = 0x40;                        // Enable crossbar and weak pull-ups
}

void Timer2_Init (int counts)
{
   TMR2CN0 = 0x00;                     // Stop Timer2; Clear TF2;
                                       // use SYSCLK/12 as timebase
   CKCON0 &= ~0x60;                    // Timer2 clocked based on T2XCLK;

   TMR2RL = -counts;                   // Init reload values
   TMR2 = 0xffff;                      // Set to reload immediately
   IE_ET2 = 1;                         // Enable Timer2 interrupts
   TMR2CN0_TR2 = 1;                    // Start Timer2
}

SI_INTERRUPT (TIMER2_ISR, TIMER2_IRQn)
{
   TMR2CN0_TF2H = 0;                   // Clear Timer2 interrupt flag
   LED = !LED;                         // Change state of LED
}

But to get anywhere useful I am stuck.

So is there a resource somewhere that really explains so I can get this chip figured out?

Hi guys,

I've recently updated my simplicity studio to the new version (Dec-2017). I'm having issues with the ".hwconf" file in my old project. I got this error message:

The document loaded with errors.
  Issues loading the device:
    missing property: rtc.view.view

 

I can also paste my file:

 

<?xml version="1.0" encoding="ASCII"?>
<device:XMLDevice xmi:version="2.0" xmlns:xmi="http://www.omg.org/XMI" xmlns:device="http://www.silabs.com/ss/hwconfig/document/device.ecore" name="EFM8SB10F8G-A-QFN20" partId="mcu.8051.efm8.sb1.efm8sb10f8g-a-qfn20" version="4.0.1">
  <mode name="DefaultMode">

...

...

    <property object="RTC_0" propertyId="ABPeripheral.included" value="true"/>
    <property object="RTC_0" propertyId="rtc.hidden.oscillatorprecisionwarning" value="No Warning"/>
    <property object="RTC_0" propertyId="rtc.hidden.rtcalarmprogrammedvalue2" value="15"/>
    <property object="RTC_0" propertyId="rtc.hidden.selectandenablelowfrequencyoscillator" value="Enabled"/>
    <property object="RTC_0" propertyId="rtc.rtcalarm.actualalarmperiod" value="30.00 seconds"/>
    <property object="RTC_0" propertyId="rtc.rtcalarm.alarmprogrammedvalue" value="983040"/>
    <property object="RTC_0" propertyId="rtc.rtcalarm.rtcoscillatorfrequency" value="32768"/>
    <property object="RTC_0" propertyId="rtc.rtcalarm.targetalarmperiod" value="30.00"/>
    <property object="RTC_0" propertyId="rtc.rtcalarm.targetalarmperiodunits" value="seconds"/>
    <property object="RTC_0" propertyId="rtc.rtcconfiguration.enablemissingrtcdetector" value="Enabled"/>
    <property object="RTC_0" propertyId="rtc.rtcconfiguration.enablertcoscillatorautomaticgaincontrol" value="Enabled"/>
    <property object="RTC_0" propertyId="rtc.rtcconfiguration.rtcoscillatorselection" value="Internal Low Frequency Oscillator"/>
    <property object="RTC_0" propertyId="rtc.rtccontrol.enablertcoscillator" value="Enabled"/>
    <property object="RTC_0" propertyId="rtc.rtccontrol.rtctimerruncontrol" value="Start"/>
    <property object="RTC_0" propertyId="rtc.view.view" value="Advanced"/>

 

What can I do?

 

 

BR

 

 

 

Hi,

I want to display the result of my calculations on 16x2 lcd. For this I need to convert numeric value to string using sprintf. Upon build it gives error 

*** ERROR L107: ADDRESS SPACE OVERFLOW
    SPACE:   DATA
    SEGMENT: ?DT?F340_USB0_INTERRUPT
    LENGTH:  000022H   
 

the error is gone when I comment the sprintf statment

sprintf(buf, "%d",result);
 

what is the problem with it.

Is there any other way to display numeric value on LCD.

regards

I am specifying EFM8BB31F16I-B-4QFN24 for a new design.

If I understand correctly, this is the QFN24-AI package.

Datasheet page 77, "QFN24-AI Package Specifications," shows a QFN24 drawing with 6 pads per side as I'd expect.

But page 51, "EFM8BB3x-QFN24 and EFM8BB3x-4QFN24 Pin Definitions," depicts a package with 5 pads per side and 4 unexposed square pads in the corners.

Am I correct that p/n EFM8BB31F16I-B-4QFN24 uses the QFN24-AI package shown on page 77, with 6 pads per side?

Thank you.

My design was based on C8051F38A. It worked well until I received Silicon Rev B.

Using RevB after few minutes  the uC become very hot and dead.

/INT2 left floating. I tried VREGIN 3.3V configuration but the same thing happen.

 

Any special thing need to modified to handle Rev B Silicon. I thought it just direct drop in.

If I want to migrate to EFM8UB2 variant, any special care?

 

 

 

Thanks

Hello,

I am having some problems programming my SiLabs microcontroller on a custom PCB that I made. It's a very simple board - I can provide the schematics if necessary. Here are some details:

• Processor: EFM8BB21F16G-C-QSOP24R
  • Purchased from DigiKey
  • No programming pre-installed
• Programmer: SiLabs USB adapter (PN: DEBUGADPTR1-USB)
• Software: SiLabs SimplicityStudio
• Protocol: C2

The chip is powered at 3v3, and I connected GND, C2D, and C2CK directly between the chip and the programmer. The C2 pins are not shared in my application, and are just wired straight to test points on the PCB. I just soldered directly to these test points to hook up the adapter. I had a 1k resistor pulling the C2D line up to 3v3, and have since pulled it off. Neither way has worked. Probing the C2D and C2CK lines when plugged into the adapter shows they are just held high at 3v3.

Simplicity Studio sees the programming adapter, but says "No Board(s) Detected" and I cannot get it to find the chip. I installed the driver for the EFM8BB2 chip during the initial setup of Simplicity Studio.

Am I missing something obvious here? This is my first prototype using the SiLabs microcontrollers. Any help would be appreciated. 

Hello,

I was using the EFM8BB1-SLSTK2020A development board. Then I designed my own board with the following circuit:

The micro is a EFM8BB10F8G.

I tryied programming it with the USB Debug Adapter, but it keeps failing. It shows me the following error:

It is my first time using silicon labs microcontrollers, I previously worked with Microcips's PICs.

I haven't found any solutions for this.

Hi guys,

I work with EFM8SB. After last Simplicity Studio update,  my "initdevice.c/.h" file doesn't update when I make changes in the Hardware Configuration.

Does anybody have this issue?

 

//=========================================================
// src/InitDevice.c: generated by Hardware Configurator
//
// This file will be regenerated when saving a document.
// leave the sections inside the "$[...]" comment tags alone
// or they will be overwritten!
//=========================================================

// USER INCLUDES
#include <SI_EFM8SB2_Register_Enums.h>
#include "InitDevice.h"

// USER PROTOTYPES
// USER FUNCTIONS

// $[Library Includes]
// [Library Includes]$

//==============================================================================
// enter_DefaultMode_from_RESET
//==============================================================================
extern void enter_DefaultMode_from_RESET(void) {
    // $[Config Calls]
    // Save the SFRPAGE
    uint8_t SFRPAGE_save = SFRPAGE;
    PCA_0_enter_DefaultMode_from_RESET();
    PCACH_5_enter_DefaultMode_from_RESET();
    PORTS_0_enter_DefaultMode_from_RESET();
    PORTS_1_enter_DefaultMode_from_RESET();
    PBCFG_0_enter_DefaultMode_from_RESET();
    RTC_0_enter_DefaultMode_from_RESET();
    CLOCK_0_enter_DefaultMode_from_RESET();
    TIMER01_0_enter_DefaultMode_from_RESET();
    TIMER16_2_enter_DefaultMode_from_RESET();
    TIMER_SETUP_0_enter_DefaultMode_from_RESET();
    SMBUS_0_enter_DefaultMode_from_RESET();
    UART_0_enter_DefaultMode_from_RESET();
    INTERRUPT_0_enter_DefaultMode_from_RESET();
    // Restore the SFRPAGE
    SFRPAGE = SFRPAGE_save;
    // [Config Calls]$

}

 

Hi Team,

I need to program a Target board using the "8-Bit USB Debug Adapter".

Question:

1.Is it mandatory to first power the USB Debug Adpater before connecting or disconnecting the Targer Board , which is mentioned in the "8-BIT USB DEBUG ADAPTER USER ’S GUIDE".?

2. Or any Power sequencing need to be followed?

Regards,

Kiran