Re: MSP430F5528 - Clock and UART

Wouldn't help, the problem is further up, and a lower body transplant 
could be risky, I might end up with boobs or something! Hmmm! thinking 
on it would that be So bad?

Al

On 18/02/2015 9:38 AM, Jake Grajewski [email protected] [msp430] wrote:
>
>
> or get new hands ^^
>
> On Tue, Feb 17, 2015 at 3:02 PM, Onestone [email protected] 
> <mailto:[email protected]> [msp430] <[email protected] 
> <mailto:[email protected]>> wrote:
>
>     Well typing can be difficult when you only have limited use of
>     your hands. I'll try to do better next time.
>
>     Al
>
>
>
>
>     On 18/02/2015 8:46 AM, Martin Bruner [email protected]
>     <mailto:[email protected]> [msp430] wrote:
>>
>>
>>      I believe you were looking for “frightening” not “fightening".
>>
>>     From: "msp430@yahoogroups. com" <mailto:[email protected]>
>>     <[email protected] <mailto:[email protected]>>
>>     Reply-To: "msp430@yahoogroups. com"
>>     <mailto:[email protected]> <[email protected]
>>     <mailto:[email protected]>>
>>     Date: Tuesday, February 17, 2015 at 3:07 PM
>>     To: "msp430@yahoogroups. com" <mailto:[email protected]>
>>     <[email protected] <mailto:[email protected]>>
>>     Subject: Re: [msp430] MSP430F5528 - Clock and UART
>>
>>     Why oh why are you bit banging this when the MSP430 has an
>>     extremely simple UART in hardware. Are interrupts that fightening?
>>
>>     Al
>>
>>     On 18/02/2015 2:21 AM, [email protected]
>>     <mailto:[email protected]> [msp430] wrote:
>>>
>>>
>>>
>>>     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).
>>>
>>>
>>>     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);
>>>
>>>        XT2_Start(XT2DRIVE_0);
>>>
>>>        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);
>>>     Thanks,
>>>     Mike
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
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> -- 
> Thomas J. Grajewski
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