NP-41 Emulator (may be)

[Harald]

(04-08-2016 02:39 PM)Chris Chung Wrote:  Instructions for load new firmware, NP41S

Mainly for Sylvain. There are a few different ways to do this. I will explain the most simple one.

1. Download mspdebug, an open source tool to flash msp430 devices. Choose download archive and choose version 0.23 (the latest)

2. unzip the package into a folder.

3. download the latest firmware "np41.hex" and place it into the same folder.

4. run a command shell and navigate to the folder.

5. attach launchpad via usb cable, also connect 6 wires to the NP41S unit. I would usually remove the battery and have the NP41S powered via launchpad. Please follow photo, can also checked and pair labels for Reset (r), Test (t), V+ (+), Gnd (G), Tx (T) and Rx (R)



6. run the following command

mspdebug rf2500 "prog np41.hex"



7. when done, detach unit and use.

Hi Chris,

I have built my NP41 and was going to flash it using a launchpad. Then I discovered that I only had GND, Vcc, TxD and RxD on the pinheader. So two pins are missing compared to the NP41S. Is the procedure different in that case? Or do I just connect those four lines? Do I have to cross RxD and Txd between launchpad and NP41?

Cheers,
Harald

Edit: And even more questions:

1) Which file do I have to use? I can only find NP41S and NP42 files. Am I correct in assuming it is the NP42 one and it is supposed to be called NP41?

2) I have an MSP-FET430UIF here, but that would appear to be JTAG only - so no use for me

3) Are we using the UART Bootstrap loader? I also have an MSP-EXP430GS launchpad (which appears to be the one you use for flashing the NP42S). Will that work? Or do I have to get the MSP-EXP430FR4133?

4) Will the mspdebug tool work?

Cheers,
Harald