PRELIMINARY
Sample Assembly Code to Erase and Reprogram the TMS320F240
depletion: |
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LACL | ERS_COUNT | ;Get erase fail count. |
ADD | #1 | ;Increment fail count. |
SACL | ERS_COUNT | ;Save new count. |
SUB | #10 | ;CHECK for max of 10. |
BCND | ers_error,GT | ;If ers_cout>10 then hard fail. |
CALL | FLWS | ;Else, try to recover from |
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| ;depletion. |
LACL | ERROR | ;Check for FLASH±WRITE error. |
BCND | ers_error,neq | ;If couldn't recover, then hard |
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| ;fail. |
B | ers_loop | ;Else, Try erase again. |
ers_error:
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** | If here, then an unrecoverable error occurred during | ** |
** | erase. | ** |
** | In an actual application, the system takes some action | ** |
** | to indicate that service is required. | ** |
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B ers_error ;Error while erasing.
ers_done:
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** | If here, then flash is erased and ready to be | ** |
** | reprogrammed. | ** |
** | This is a good place in the example to set a | ** |
** | breakpoint so that erasure can be verified (i.e., | ** |
** | all flash bits should be 1). | ** |
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** | At this point, an actual application fills a buffer with ** | |
** | the data to be programmed. To simulate this in the | ** |
** | example, three DARAM locations are initialized. | ** |
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LAR | AR1, #0380h | ;Using last 128 words of B1 | DARAM |
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| ;as buffer. |
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MAR | *,AR1 |
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SPLK | #0AAAAh,*+ | ;Use dummy data for buffer. |
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SPLK | #05555h,*+ |
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SPLK | #0AAAAh,* |
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PRELIMINARY | Assembly Source Listings and Program Examples |
