Hi, Does any one have smaple module source to erase and write block of data into flash memory of MSP430 Segment A (0x1000)and Segment B(0x1080). Regards, Mohan D. mohan@moha...
Request for flash memory module
Started by ●May 29, 2003
Reply by ●May 29, 20032003-05-29
This uses GCC to compile.
static void cmd_cfgerase (void)
{
unsigned int oldWDTCTL;
unsigned int oldIE1;
_DINT ();
oldWDTCTL = WDTCTL;
oldIE1 = IE1;
IE1 = 0;
WDTCTL = WDTPW | WDTHOLD;
FCTL2 = FWKEY | FSSEL1 | FSSEL0 | FN3 | FN1 | FN0;
FCTL1 = FWKEY | ERASE;
FCTL3 = FWKEY;
*(unsigned char *) 0x1000 = 0x00;
FCTL1 = FWKEY;
FCTL3 = FWKEY | LOCK;
WDTCTL = FXKEY ^ oldWDTCTL;
IE1 = oldIE1;
_EINT ();
}
static void cmd_cfgwrite (void)
{
unsigned int oldWDTCTL;
unsigned int oldIE1;
unsigned int i;
const char *string = "This is a test";
unsigned int l = strlen (string);
_DINT ();
oldWDTCTL = WDTCTL;
oldIE1 = IE1;
IE1 = 0;
WDTCTL = WDTPW | WDTHOLD;
FCTL2 = FWKEY | FSSEL1 | FSSEL0 | FN3 | FN1 | FN0;
FCTL1 = FWKEY | WRT;
FCTL3 = FWKEY;
for (i = 0x1000; i < 0x1080; i++)
*(unsigned char *) i = string [i % l];
FCTL1 = FWKEY;
FCTL3 = FWKEY | LOCK;
WDTCTL = FXKEY ^ oldWDTCTL;
IE1 = oldIE1;
_EINT ();
}
--John
On Thursday 29 May 2003 16:44 pm, MohanDada wrote:
> Hi,
>
> Does any one have smaple module source to erase and write block of
> data into flash memory of MSP430 Segment A (0x1000)and Segment
> B(0x1080).
>
> Regards,
> Mohan D.
> mohan@moha...
>
>
>
>
>
> Yahoo! Groups Sponsor
>
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Reply by ●May 29, 20032003-05-29
hi mohan
In the TI website in the FET examples in C you can find two
programs related to flash which i guess should clarify your
doubts ,check with the accurate processor you are using
bye
raghu
--- In msp430@msp4..., "MohanDada" <mohandada@y...> wrote:
> Hi,
>
> Does any one have smaple module source to erase and write block of
> data into flash memory of MSP430 Segment A (0x1000)and Segment
> B(0x1080).
>
> Regards,
> Mohan D.
> mohan@c...
Reply by ●May 29, 20032003-05-29
There is a rar file in the Files area of this group.
Michel
--- In msp430@msp4..., "MohanDada" <mohandada@y...> wrote:
> Hi,
>
> Does any one have smaple module source to erase and write block of
> data into flash memory of MSP430 Segment A (0x1000)and Segment
> B(0x1080).
>
> Regards,
> Mohan D.
> mohan@c...
Reply by ●May 30, 20032003-05-30
DEAR ALL
can i use STE pin as a chip select pin for spi mode. otherwise what is use of
STE pin . and also max. speed of SPI will work?
"J.C. Wren" <jcwren@jcwr...> wrote:
This uses GCC to compile.
static void cmd_cfgerase (void)
{
unsigned int oldWDTCTL;
unsigned int oldIE1;
_DINT ();
oldWDTCTL = WDTCTL;
oldIE1 = IE1;
IE1 = 0;
WDTCTL = WDTPW | WDTHOLD;
FCTL2 = FWKEY | FSSEL1 | FSSEL0 | FN3 | FN1 | FN0;
FCTL1 = FWKEY | ERASE;
FCTL3 = FWKEY;
*(unsigned char *) 0x1000 = 0x00;
FCTL1 = FWKEY;
FCTL3 = FWKEY | LOCK;
WDTCTL = FXKEY ^ oldWDTCTL;
IE1 = oldIE1;
_EINT ();
}
static void cmd_cfgwrite (void)
{
unsigned int oldWDTCTL;
unsigned int oldIE1;
unsigned int i;
const char *string = "This is a test";
unsigned int l = strlen (string);
_DINT ();
oldWDTCTL = WDTCTL;
oldIE1 = IE1;
IE1 = 0;
WDTCTL = WDTPW | WDTHOLD;
FCTL2 = FWKEY | FSSEL1 | FSSEL0 | FN3 | FN1 | FN0;
FCTL1 = FWKEY | WRT;
FCTL3 = FWKEY;
for (i = 0x1000; i < 0x1080; i++)
*(unsigned char *) i = string [i % l];
FCTL1 = FWKEY;
FCTL3 = FWKEY | LOCK;
WDTCTL = FXKEY ^ oldWDTCTL;
IE1 = oldIE1;
_EINT ();
}
--John
On Thursday 29 May 2003 16:44 pm, MohanDada wrote:
> Hi,
>
> Does any one have smaple module source to erase and write block of
> data into flash memory of MSP430 Segment A (0x1000)and Segment
> B(0x1080).
>
> Regards,
> Mohan D.
> mohan@moha...
>
>
>
>
>
> Yahoo! Groups Sponsor
>
>
>
>
>
>
>
>
>
> .
>
>
>
>
Yahoo! Groups Sponsor
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Reply by ●May 31, 20032003-05-31
Hi, Thanks a lot. The code is working perfectly. Regards, Mohan --- In msp430@msp4..., "J.C. Wren" <jcwren@j...> wrote: > This uses GCC to compile. > > static void cmd_cfgerase (void) > { > unsigned int oldWDTCTL; > unsigned int oldIE1; > > _DINT (); > oldWDTCTL = WDTCTL; > oldIE1 = IE1; > IE1 = 0; > WDTCTL = WDTPW | WDTHOLD; > > FCTL2 = FWKEY | FSSEL1 | FSSEL0 | FN3 | FN1 | FN0; > FCTL1 = FWKEY | ERASE; > FCTL3 = FWKEY; > *(unsigned char *) 0x1000 = 0x00; > FCTL1 = FWKEY; > FCTL3 = FWKEY | LOCK; > > WDTCTL = FXKEY ^ oldWDTCTL; > IE1 = oldIE1; > _EINT (); > } > > static void cmd_cfgwrite (void) > { > unsigned int oldWDTCTL; > unsigned int oldIE1; > unsigned int i; > const char *string = "This is a test"; > unsigned int l = strlen (string); > > _DINT (); > oldWDTCTL = WDTCTL; > oldIE1 = IE1; > IE1 = 0; > WDTCTL = WDTPW | WDTHOLD; > > FCTL2 = FWKEY | FSSEL1 | FSSEL0 | FN3 | FN1 | FN0; > FCTL1 = FWKEY | WRT; > FCTL3 = FWKEY; > > for (i = 0x1000; i < 0x1080; i++) > *(unsigned char *) i = string [i % l]; > > FCTL1 = FWKEY; > FCTL3 = FWKEY | LOCK; > > WDTCTL = FXKEY ^ oldWDTCTL; > IE1 = oldIE1; > _EINT (); > } > > --John > > On Thursday 29 May 2003 16:44 pm, MohanDada wrote: > > Hi, > > > > Does any one have smaple module source to erase and write block of > > data into flash memory of MSP430 Segment A (0x1000)and Segment > > B(0x1080). > > > > Regards, > > Mohan D. > > mohan@c... > > > > > > > > > > > > Yahoo! Groups Sponsor > > > > > > > > > > > > > > > > > > > > . > > > > > > > > Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.