Part Number:MSP430FR5969
Tool/software: Code Composer Studio
I purchased two MSP-EXP430FR5969 Launchpad Boards from Digikey. I tried the "Out of Box" demo that came pre-load from the factory.
I'm using Windows 7 to run the GUI portion of the Demo. Each board worked fine in both "realtime logging" and "loging to FRAM"...and "playing back the FRAM" in the GUI.
So both the Launchpad Boards worked fine with the "factory loaded Out of Box Demo".
Then I loaded CCS Ver 7.0.0.00043, and compiled the source code for the "Out of Box Demo". I went into debug mode and re-flashed both boards.
Before the flashing could occur, each Launchpad Board required an automatic Firmware update...which went fine. After the firmware update, each Board seemed to flash the "newly compiled Out of Box Demo firmware image" fine.
I shutdown CCS and unplugged USB from the board and then re-plugged in USB and started the GUI portion of the Demo.
The GUI is now only working in the Realtime mode. When logging to FRAM...the logging piece seems to be working correctly. At least the green LED is blinking every 5 seconds, which supposedly denotes the logging to FRAM. But the playback from FRAM is not working.
Each board is exhibiting the exact same behavior. This leads me to believe that the problem lies in the Demo Source Code, and not the flashing process or GUI program itself. Everything was working fine with the original factory loaded Demo.
I did get a warning message #10420-D during compilation: "FRAM device usage: clearing PM5CTL0.LOCKLPM5 bit at start-up".
It Recommended: Insert the following line of code at the beginning of the project:
" // Disable the GPIO power-on default high-impedance mode to activate
// previously configured port settings
PM5CTL0 &= ~LOCKLPM5;"
I inserted these tree lines as the first lines of the "int main(void)" function.
It got rid of the warning message...but the playback of FRAM is still broken.
I'm coming over to the MSP430 from using Atmel with the Atmel Visual Studio and Visual Micro Studio
I'm specifically looking for a "very low power solution" that the FRAM chips provide.
Any help would be greatly appreciated.