MSP430F5438A: Need to extend the flash Memory

Embedded Developer

Hello,

I am using MSP430F5438A Controller.

I completely utilized the flash memory 256k . Is there any way to expand the memory or changing the memory segment area.

over 7 years ago

0 Eason Zhou over 7 years ago

TI__Mastermind 40195 points

Hi,

There are three method.

1. Optimize your code.1641.MSP430 Optimizing C Compiler User Guide.pdf

2. Use other area that you haven't used.(BSL and information memory) But I don't suggest you to do this.

3. Add an external flash or EEPROM.

Eason

0 Embedded Developer over 7 years ago in reply to Eason Zhou

Prodigy 110 points

Hello,

Thank you for your response

I need to know what issue may happen if i am using the BSL and information memory..

0 zrno soli over 7 years ago in reply to Embedded Developer

Guru 34973 points

Information memory and BSL flash segments, are the same as any other flash segment. Information memory is not used for 5xx/6xx flash family, segmet A should be unlocked first for writing. In BSL is stored UART BSL, that can be used for mass erase / unlock, JTAG locked device. If BSL is not needed, this space can be used for application, BSL should be unlock first for read / write. In case of changing BSL take care to leave BSL jmp table JTAG fuse values untouched (erased to 0FFFFh).

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MSP430F5438A: Need to extend the flash Memory