Re: MSP430F5528 - Clock and UART

I love getting under your skin.  Maybe troll would be more accurate.  I bet
you are waiting for me to reply as your blood pressure goes up.  Maybe I
will answer your next email and maybe notŠ You never know trollŠ

From:  "msp430@yahoogroups. com" <[email protected]>
Reply-To:  "msp430@yahoogroups. com" <[email protected]>
Date:  Tuesday, February 17, 2015 at 4:28 PM
To:  "msp430@yahoogroups. com" <[email protected]>
Subject:  Re: [msp430] MSP430F5528 - Clock and UART

 
 
 
 
   

   Who's bullying, I'm pointing out a simple fact, and asking a valid
question, over the years I've been in this group one point seems to dominate
here. The vast majorioty of people are scared of using interrupts,
especially C programmers.
 
 Bullying requires some form of abuse. Get your facts right before you make
pointless off topic comments.
 
 Al
 
 

On 18/02/2015 9:46 AM, Martin Bruner [email protected] [msp430]
wrote:
 
 
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> Spelling is important when bullying someone online.
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> From:  "msp430@yahoogroups. com" <mailto:[email protected]>
> <[email protected]>
>  Reply-To:  "msp430@yahoogroups. com" <mailto:[email protected]>
> <[email protected]>
>  Date:  Tuesday, February 17, 2015 at 4:02 PM
>  To:  "msp430@yahoogroups. com" <mailto:[email protected]>
> <[email protected]>
>  Subject:  Re: [msp430] MSP430F5528 - Clock and UART
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>  Well typing can be difficult when you only have limited use of your hands.
> I'll try to do better next time.
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>  Al
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> On 18/02/2015 8:46 AM, Martin Bruner [email protected] [msp430]
> wrote:
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>>  I believe you were looking for ³frightening² not ³fightening".
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>> From:  "msp430@yahoogroups. com" <mailto:[email protected]>
>> <[email protected]>
>>  Reply-To:  "msp430@yahoogroups. com" <mailto:[email protected]>
>> <[email protected]>
>>  Date:  Tuesday, February 17, 2015 at 3:07 PM
>>  To:  "msp430@yahoogroups. com" <mailto:[email protected]>
>> <[email protected]>
>>  Subject:  Re: [msp430] MSP430F5528 - Clock and UART
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>>  Why oh why are you bit banging this when the MSP430 has an extremely simple
>> UART in hardware. Are interrupts that fightening?
>>  
>>  Al
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>> On 18/02/2015 2:21 AM, [email protected] [msp430] wrote:
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>>> 
>>> Hello, I'm trying to communicate with my RF module through UART interface.
>>> However, I get many errors even with low load. I suspect that I have an
>>> issue with the way that I configure the clock or the UART.
>>>  
>>> 
>>> 
>>>  
>>>  
>>> 
>>> Basically, for the UART functionality I use http://glitovsky.com/blog/?p=300
>>>  
>>> 
>>> (I configured the connection as 8N1  at 115200).
>>>  
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>>> 
>>> 
>>>  
>>>  
>>> 
>>> The clock configuration below is used with MCLK = 25 MHz ( when I use it
>>> with MCLK=16 MHz I cannot communicate with the UART module at all ) .
>>>  
>>> 
>>> 
>>>  
>>>  
>>> 
>>>  P5SEL |= 0x0C;
>>>  
>>>  
>>> 
>>>   /* Select REF0 for FLL reference. */
>>>  
>>> 
>>>  UCSCTL3 &= ~SELREF_7;
>>>  
>>> 
>>>  UCSCTL3 |= SELREF_2;
>>>  
>>> 
>>> 
>>>  
>>>  
>>> 
>>>  /* Set ACLK to use REF0CLK.
>>>  
>>> 
>>>    * Set SMCLK to use the DCO.
>>>  
>>> 
>>>   */
>>>  
>>> 
>>>   UCSCTL4 &= ~SELA_7 & ~SELS_7 & ~SELM_7;
>>>  
>>> 
>>>  
>>> 
>>>   UCSCTL4 |= SELA_2 | SELS_4 | SELM_4;
>>>  
>>>  
>>>    /* Initialize FLL. */
>>>  
>>>    Init_FLL_Settle(mclk/1000L, mclk/32768);
>>>  
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>>> 
>>>  
>>>  
>>>    XT2_Start(XT2DRIVE_0);
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>>> 
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>>>  
>>>    UCSCTL4 &= ~SELA_7;
>>>  
>>>  
>>>     UCSCTL4 |= SELA_2;
>>>  
>>>    UCSCTL8 |= SMCLKREQEN | MCLKREQEN | ACLKREQEN;
>>>  
>>>    /* Enable interrupt for TBCCR0. */
>>>  
>>>     TBCCTL0 = CCIE;
>>>  
>>>  
>>>  
>>>   /* Number of ticks per millisecond. */
>>>  
>>>     clock.aclk = 32768;
>>>  
>>>     clock.ticks_per_interrupt = clock.aclk / 1000;
>>>  
>>>     TBCCR0 = clock.ticks_per_interrupt;
>>>  
>>> 
>>>  
>>>  
>>>     /* Use ACLK, set timer to up-count mode, and start timer at zero. */
>>>  
>>>     TBCTL = TBSSEL_1 | MC_2 | TBCLR;
>>>  
>>> 
>>>  
>>>  
>>>    /* Enable interrupts. */
>>>  
>>>     __bis_SR_register(GIE);
>>>  
>>>   
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>>>  
>>> Thanks, 
>>>  
>>> Mike
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