.UPDATED. Ps2 bios rom for pcsx2. Video can be found hereVery detailed in depth video about MESS (Multi Emulator Super System)MESS is emulator software for windows.
P,There are two steps I recommend to tackle this problem:1. You said you are getting an OFIFG set, which means you could be having problems with your external clock connections & setup. I recommend that you take a very simple Clocks code example from our site and run it as is to ensure that you do not have any xtal setup issues.2. Once you get that under control then take a UART code and start by running as-is, verify it works then begin modification. Be careful with the baud rate control bits. All content and materials on this site are provided 'as is'.
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An example showing how to use the hardware UART on the MSP430G2553 to transmit and receive characters between a terminal on the computer and the MSP430 launchpad over the USB connection. In this example sending an ‘R’ or ‘G’ will turn the red and green LEDs on and sending an ‘r’ or ‘g’ will turn them off, respectively. To send and receive characters over the serial port you can use the serial monitor that is built into Energia, click on the magnifying glass button on the top right of the window. Make sure the baud rate is set to the same rate as that specified in the code.
You can also use a serial terminal program such as or if you are on a Mac. Another very good terminal with multi-platform support is. This also allows for the display of the received characters in HEX. Spark fun has a nice.
Don’t forget to connect to the right serial/com port. Also it pays to disconnect the terminal program before trying to upload more code using CCS or Energia. In Screen you need to press ctrl+A+K and then enter y to disconnect the serial terminal. You may also need to physically disconnect and reconnect the USB cable sometimes to free up the USB connection, especially if your MSP430 code continually sends data. You are right about the need for &data rather than data as data is a single char variable and not an array so to pass it as a pointer to the function you need to use the &data notation.
Static and volatile variables are different. A static variable is simply a variable that exists for the lifetime of the application. Static variables can be global: defined outside of a function and accessible everywhere, or local: defined within a function and only accessible from within that function.
Local static variables are created on the first invocation of the function and remain in memory for the function to use when next called.A volatile variable is one the can be changed without the compilers knowledge for example by an interrupt. This means that whenever this variable is accessed by the program it must be reread from the actual memory location in case it has changed, rather than simply read from the cache or registers on the ALU if it has already been used recently by the program.In this case data is updated within an interrupt. This means that data can be changed, an interrupt can interrupt an interrupt. We would also like this variable to always exist so it is best defined as static volatile char data. Sorry the joys of copying with the clip boardthe &= operator i.e a &= b is equivalent toa = (a&b);the & operator in the UARTSendArray(&data,1) call is required to as the function where this is used expects the first parameter to be a pointer. If data was an array i.e.
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Data = “hello” then by default data is a pointer so you can simply call the function as UARTSendArray(data,5). However if data = ‘a’ then data is not an array so data is not treated as a pointer. This means if you wish to pass this to to the UARTSendArray function you first need to create a pointer to the variable data i.e.char data = ‘a’;char.datapointer; // create a pointer that points to a chardatapointer = &data; // reference the pointer to the char dataUARTSendArray(datapointer,1)This can also be done in a single lineUARTSendArray(&data,1).
Today we are going to learn how to communicate using UART with the Launchpad. For this purpose I will replace the default microcontroller that comes with the board with the. It is the most powerful device in the MSP430 Value Line and it comes with an integrated hardware UART module, along with 16 Kb of Flash memory, 512 bytes of SRAM and an 8-channel, 10 bit ADC.Quick Links. Part 1:. Part 2:. Part 3:. Part 4:UART communication can be useful when dealing with sensors: as a basic example, we could send data taken from a temperature sensor with the internal ADC to a computer, using a cheap bluetooth module connected to the UART pins on the Launchpad.
Hey!your tutorial is awesome! I totally liked your explaination.I have a few doubts, please help meI am trying to get multichannel ADC working while still being able to send and receive data via UART. Currently, I have the serial communication code working but I require pins 1.1 (TXD) and 1.2 (RXD) to do it. On the other hand, I want to use 6 other channels for ADC sampling. I have been trying to sample from 1.3, 1.4, 1.5, 1.6, and 1.7.From what I've gathered, setting INCH7 while preforming multichannel sampling will allow ADC to sample from A0-A7. But I don't want to sample from A1 and A2 since those pins are being used for serial transmission.Any ideas or tips on how to set this up?
Thanks Steve! Typically a UART is point to point.
If you connect it to 2 devices you will likely have bus contention and even though the settings are invalid for one of the devices, it will try to interpret the signal and get corrupted data. The best option would be to select and MCU with 2 UART peripherals. Otherwise, you could probably use a mux to select which device you are communicating with.
You would disable the UART, select a device using a GPIO, setup the UART and then start communicating. Stephen,Very good article. I’m a top notch HW designer but not as qualified on software and RTOS which I’m trying to improve. I don’t understand why your option 3 says “Option 3: Use an external UART to USB converter”. There is a USB to UART converter on the 430G board, its the emulator, so why not use that, or am I not understanding something here.I have a msp4305529 and want to understand more how to really communicate through the UART rather than using energia or other libraries.
Thanks for the question. You are correct, the board itself has a UART USB emulator.
I prefer not to use it because I have had issues with it in the past, especially on Linux. If you have it working with the onboard option than by all mean use that. I just wanted to point out that there are other options. The majority of the tutorial should be relevant to the 5529. There will be clocking and pin muxing differences for sure, but as far as UART is concerned, if you are using the same peripheral they likely function the same way. If you want to chat more about the UART-USB converter ping me at.
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Hello all,So, I have an MSP430G2553 LaunchPad and I want to be able to send it data to Labviewvia USB using UART.What have I done in the MSP430G2553?Well I have written code that whenever I push a button on the LaunchPad it send I text trough USB using UART. Using a program on my PC that monitors my serial port, I can confirm that whenever I press the button the text comes to the PC. I was also able to send commands from the monitor (it has a 'send command' field) to the MSP430. So the connection works fine, between LaunchPad and PC.What have I done in Labview?On the attached file 'LabviewMSP430.JPG' you can see my code.
Whenever I click on the 'VISA resource name' there is no COM. It only says 'Refresh', and even when I click it nothing happens. As you can see in the file 'DeviceManager.JPG' the PC can see my MSP430 device in COM3.So my question is, what do I need to do so Labview can see my COM3/MSP430G3553 device? And then, is my code correct so it can read the serial port? What matters is whether the com port is visible in MAX (Measurement and Automation Explorer) and for the port to be visible, you must install NI-VISA.In your code, you should also add the VISA Configure Serial Port. Replace the VISA Open with it. Inside the loop, you should not be using VISA Bytes at Serial Port.
The msp code should be configured to append a termination character (i.e. Line feed) and you simply set the VISA Read number of bytes to some arbitrarily high number. The read will automatically terminate when the character is detected.