The BSL and protect of msp430 series

Hi token,

only some of the value line devices have the BSL (i.e. MSP430G2x53 / MSP430G2x13). If the BSL password is incorrect the BSL will erase the hole device. Detailed information on the BSL are available in this application note: http://focus.ti.com/mcu/docs/litabsmultiplefilelist.tsp?sectionId=96&tabId=1502&literatureNumber=slau319a&docCategoryId=6&familyId=342

Rgds
aBUGSworstnightmare 

hi aBUGSworstnightmare

     I think your replies are not right. the slau319a document mention that MSP430F543xx family, CC430F613x family,MSP430F552x family,MS430FR537x family,F13x,F14x,F11x,F11x1,F12x,F11x2,F12x2,F43x,F44x,FE42x,FW42x,F(G)43x,F415,F417,F16x,F161x,F42x0,F13x,F41x(1) ,F21xx,F22xx,F24x,F23x,FG46xx,F261x,F471xx have BSL. But it doesn't mention the G2 series.okay,Simply speak,which msp430 devices can't support BSL function?

    Thanks.

Simply put. If the datasheet of a chip says it supports BSL, then it probably does.

hi,

  NO, no,no.....

  The msp430 spec. doesn't mention this content? i can't find it. (eg. msp430g2452,)

the below image is from msp430x2xx family user's guild.  does  it explain that the msp430G2xxxsupport BSL? eg. msp430F2xxx and msp4302Gxxx?

token Jiang said:

hi,

  NO, no,no.....

  The msp430 spec. doesn't mention this content? i can't find it. (eg. msp430g2452,)

Well, that's because MSP430G2452 DOES'NT has a BSL!!

The image above is from page 12 of the MSP430G2553 data sheet (http://focus.ti.com/lit/ds/symlink/msp430g2553.pdf)! This device (and all other devices of MSP430G2x53 and MSP430G2x13 sub series) HAVE BSL.

Rgds
aBUGSworstnightmare

Thanks  aBUGSworstnightmare

   i see.

   the mcu support bsl ,if  its spec. mention  ;

   the mcu don't support if the spec. doesn't mention the content about the bsl .

  thanks again.

token Jiang said:

I think your replies are not right.

Basically ALL MSPs of the F series do have a BSL of some kind (usually timer-based software UART, but those with internal USB controller have an USB BSL), but most of the G series do NOT have a BSL, nor does the L series (which has no flash).
For the G series (and maybe the FR series), check the datasheet of the processor in question, and when it lists BSL feature, then it has one.

You are right about G2x53. Many other MSP430 chips may use different pairs of RX-TX for BSL and for on-chip hardware UART, but never use the same pin in different directions.