MSP430F5529: Writing on Information memory i.e on flash

Hi Manish,

Chapter 7 in the user's guide shows steps on how to write to the different memory regions. A few things I noticed:

1. INFO A has a specific lock bit. You will need to clear this in order to write to it.

2. It looks like you need to set the WRT bit before writing to the flash regions.

3. There are passwords associated with these flash control registers.

All of this info is in chapter 7. Please take a look and let me know if you have any other questions.

http://www.ti.com/lit/ug/slau208q/slau208q.pdf

Thanks,

Mitch

I suspect you want "DATA_SECTION" rather than "location":

https://e2e.ti.com/support/microcontrollers/msp430/f/166/p/780897/2898972

[Disclaimer: I haven't had occasion to write an information segment with the linker, since I always did it at run-time.]

Part Number: MSP430F5529

Hi Experts,

I'm trying to store some variables in INFOA, INFOB memory location before the program counter goes to main. I have also looked in examples code but there I didn't get success. I was looking in 6.4 Memory Organization in datasheet of MSP430F5529. Can anyone say how to write in flash?

Hi Manish,

It looks like this post is related to the other one I am helping you with. I will go ahead and merge these together,

Thanks,

Mitch

Hi Mitch,

As you have said in your previous reply "INFO A has a specific lock bit. You will need to clear this in order to write to it". Then there are four sections can't we use INFO B, INFO C, INFO D. And if you can help me writing these below statement I shall be very grateful

#pragma location="INFOB"
const st_rf_config stRfConfig_bkup =
{
    .node_id = UNPAIRED_NODE_ID,
    .network_addr = UNPAIRED_NETWORK_ADDR,
//    .status = PAIRED_MODE,
    .status = UNPAIRED_MODE,
    .node_slot = 0,
};