You do not need any shifting or masking. In stead of:
Flash_Settings[0] = (command_time>>8) & 0xFF;
Flash_Settings[1] = command_time & 0xFF;
what you really need is:
mov.w &command_time, &0x10C0;

--- In m...@yahoogroups.com, dasGnu wrote:
>
> Hello,
>
> I'm trying to store an int in Flash.... and reading it back after
switching the device (a MSP430F2274) on.
>
> "int command_time;" - is a global declared integer
> "Flash_Settings" is specified in lnk_msp430f2274.cmd as
"Flash_Settings = 0x10C0;"
> and within the module as "extern volatile char Flash_Settings[2];"
>
> The function to write is:
>
> void settings_to_flash(){
>
> _disable_interrupts();
>
> BCSCTL1 = CALBC1_1MHZ; // Set DCO to 1MHz
> DCOCTL = CALDCO_1MHZ;
> FCTL2 = FWKEY + FSSEL0 + FN1; // MCLK/3 for Flash
Timing Generator
> FCTL3 = FWKEY + LOCKA; // Clear LOCK &
LOCKA bits
> FCTL1 = FWKEY + WRT; // Set WRT bit for
write operation
> // write int to Flash
> Flash_Settings[0] = (command_time>>8) & 0xFF;
> Flash_Settings[1] = command_time & 0xFF;
> FCTL1 = FWKEY; // Clear WRT bit
> FCTL3 = FWKEY + LOCKA + LOCK; // Set LOCK & LOCKA bit
>
> init_dco(); //
Set DCO back to working value
>
> _enable_interrupts();
> }
>
> when reading back the int I never get the right values....?
>
> Reading is done as:
> command_time = Flash_Settings[0];
> command_time |= Flash_Settings[1] >> 8;
>
> What am I doing wrong? First I thought my shifting is wrong, but
while debugging the values read from Flash are totally incorrect.
> Maybe someone can help me out. Thanks,
>
> Mitch
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