I am a newbie in this subject and want to learn how to embed codes into MSP430.
I have a breakout board MSP430-H5438 and I am not using JTAG interface.
I have the IAR generated codes (hex files) ready (ADC, SPI interfaces), however I could not load them into the IC.
I am using a USB-UART bridge to connect device to PC, BSL scripter for software, but there is no result.
Is it a wrong way to connect MSP430 to PC without JTAG interface? Am I running in circles here?
Thanks in advance.
BSL should work but you need to connect not only the TX and RX but also you need to have DTR connected to RST and RTS to TEST. If your USB-UART interface only has TX and RX (which is often the case) then it will not work with BSL.
Note that the MCU on that board supports not only the regular (and expensive) JTAG but also the newer SBW interface. This means you can get the $4.30 Launcphad and program your board using the programmer that is included on the Launchpad. This will let you do anything you can do over the regular JTAG and is highly recommended over BSL since it will give you hardware debugging functionality. And the Launchpad can be useful on its own too.
Related
I'm trying to connect to stm32f401rbt6 with st-link utility.
The MCU has 6 pins connected, as on the image below.
The target is powered by a lab power supply, target GND is connected to the ST-Link GND
When I plug it to the computer, st-link utility says it can't connect.
Tried:
Update ST-Link firmware
Connect under reset is by default, tried all available methods
Checked connectivity for the pins on the image
Connected with the same ST-Link to other MCU
Desoldered the MCU and soldered another one
The issue is still remain. Please suggest what I'm doing wrong, or how to check that my MCU is alive.
I once had similiar issues and i figuered out, that decoupling capacitors were vital. After soldering this onto the pcb, it worked like a charm.
(Similar question: Stm32CubeProgrammer not connecting (no error msg) using ST-LINK V2 dongle and Lora E5 mini board)
You can try the following suggestions. Some ST devices are a lot more sensitive than others when it comes to programming. I have had some ST devices programming without issues and then using practically the same setup on other devices it just won't work.
Place a 22ohm resistor in series on the SWDIO and SWCLK lines. This link suggests only placing it on the SWDIO line but I found that I needed it on the SWCLK line as well. Typical SWD Circuit
For the ST Link Settings try using these:
Reduce the frequency from 4MHz to a lower frequency
Use SWD
Use connect under reset
Don't use an external pull-up on the NRST line.
Make sure that your programming wires between the ST-LINK and the target board are as short as is conveniently possible.
(This one I must stress as being important) Make sure that your processor's ground pins are all connected very closely together (i.e. the tracks between them are as short as possible) and that very importantly your programmer ground is also connected to the same ground pins very closely.- At high programming speeds a thin or long unbalanced (different length) ground track to the processor can cause a problem with some devices.
Whatever you are using to supply power to the processor must have a supply with a similar voltage as the ST-LINK (mine is 3V) - (although I have found that if the processor supply is 3.3V programming seems to still work most of the time.) (Remember the original ST-Link does not supply power only reads the power level.)
A dodgy programming setup can accidentally set the protection to LEVEL 2 bricking your device - so if you have been trying and not getting any further, it might be time to replace your IC.
Prior to changing / erasing a device that had been programmed to LEVEL 1, you might need to first enable the PCROP_RDP option byte. - Once enabled, you should be able to change from LEVEL 1 to LEVEL 0 that will automatically erase the device.
Some people have suggested holding the device in reset until just after pressing the erase button to enable erasing it.
I hope these suggestions help...
I'm learning about embedded systems and have an idea about one small project and I want to use Cortex M0+ based MCU STM32G081KBT6. I saw a lot of tutorials with this MCU type, but all of them are based on developer board and with them it is very simple to upload code with USB cable. I want to make my custom PCB for this. So my question is what I have to do so I can upload my code to this microcontroller?
From a datasheet I think I have to use SWDIO (PA13) and SWCLK(PA14) ports for Boot, but if someone can help me do I have to use also some resistors, can I make it USB to wire transfer with this, or I have to use some external device to make it possible? Or there is some easier and better solution to upload code from my laptop to microcontroller?
Thanks for the replies.
There two main options:
SWD
Implement an SWD programming connector. Basically the pins GND, SWDIO, SWCLK and preferably 3.3V are made available. No resisters are needed. You can fit a 4 pin header, an official 10 pin SWD connector or just 4 pads (for connecting using an adapter with pogo pins).
This option requires an SWD debug adapter like ST-Link or J-Link. In addition to uploading firmware, this option supports debugging.
USART
Make the USART (RX, TX) pins plus GND and 3.3V available on the board. This option requires a USB-to-serial adapter.
It's also possible to use I2C or SPI instead, though there are no standard solutions for connecting to your board that I'm aware of.
USB isn't an option for this particular chip. It is supported on many of the more expensive STM32 chips though.
I strongly recommend the first option. It is far more versatile than the other options. And an ST-Link adapter isn't expensive.
Details regarding the bootloader capabilities and pins:
https://www.st.com/resource/en/application_note/cd00167594-stm32-microcontroller-system-memory-boot-mode-stmicroelectronics.pdf
I have a microcontroller STM32F051 and I want to program it. I looked for IDE that I would be able to use and I found TRUESTUDIO that I'm using. I wanted to know how should I do to send the program I made into the microcontroller. Do I need any specific programmer (like an electronic device for Microchip Pics) ? When I clic the button debug, I get an error
"Error in initializing ST-Link device. Reason: Failed to connect to device. Please check power and cabling to target."
I'm not sure if I misunderstood something. I download the software and I selected my specific version of microcontroller, but it seems that it doesn't recognize it...
Yes, no matter what the mcu you will need some interface, be it as simple as a usb connector tied to the chip, or a debug header using some other device or electronics. For an stm32 chip many of the discovery boards and the nucleo boards (in particular the ones with a breakaway end, you dont have to break it off, just remove some jumpers to use it on other devices (not necessarily ST devices)). These parts also have a serial bootloader inside that you cant change so it is always there, and can sometimes use one of the nucleo stlink debuggers (do some research as to ones that offer a virtual uart, not all of them do, cheaper than the dedicated stlink dongles) or say an ftdi usb breakout board (under $2 on ebay).
There are numerous options for programming these parts as in writing software, can just use gnu tools and roll your own drivers (pretty easy the documentation is pretty good), get one of the ST libraries that they offer (for free) or if you have a Nucleo you might be able to use mbed or arduino to develop.
We really need to know more about the board you have this part on, is it just a breakout board or as asked in the comments did you buy a nucleo board or a discovery board? Are you running linux, windows or mac or other or are flexible on what host?
I have this samsung chip on a board (samsung s3c2510a) and I want to program to it via some method. However, I don't have a jtag reader on me and this board has a usb port. Is there any way to tell if I can program to the chip via this usb port? I ripped the board off a color laser printer by samsung and the board also has an ethernet connection.
Also, this board has 4 pins called "cn4 debug". Would this be of any use?
Here is a pic: http://imageshack.us/photo/my-images/262/img20120527120306.jpg/
Thanks,
Rohit
I doubt programing this board would even be posible. You could check if there is any software that is used to update the board (from the manufactuter) and try to reverse the protocol. You would also need to figure out the format of the firmware file. There is a lot of good stuff on hacking router firmware that may help. You should be able to find some mailing list to ask for help on.
For any device to be programmed over USB or indeed any port that is not part of the on-chip programming/debug architecture requires software/firmware supporting that port to be present on teh chip already. Some microcontrollers include ROM based primary bootloader code for this purpose. The S2C2510A has no such bootloader. But if the board already has software on it, part of it may indeed be a bootloader. However unless you can get information on the protocol used, you do not really have much hope.
A picture of the board does not really help; what you need is a full data sheet and/or schematic. You'll also want the data sheet and user reference manual for the chip itself. You don't really have much hope of making sense of this board without them. The board does not look like a development board to me, so board specific information may not be available.
CN4 merely means "Connector Number 4". Having just four pins it is likely that it is merely a connecting to the Console UART - a minimal low speed serial data peripheral on the S3C2510A.
I am working on Xilinx Spartan 3E platform, using this development board:
http://www.xilinx.com/products/boards-and-kits/HW-SPAR3E-SK-US-G.htm
My program operates on certain data and then provides output. I wish to transfer the input signals externally. The input data is a stream of 8-bit signals.
So, how do I send the input signals from my laptop to the FPGA via USB? Does Xilinx support this or is there standard software to do this?
Thanks.
It sounds like you are describing a uart more than a native USB interface. You can get a USB to logic level serial adapter that will let you easily transfer data to and from a Pc at up to 921.6k baud. A uart/serial port is easy to implement in the Fpga and PCs are easy to use with serial ports.
Here is the cable:
http://www.ftdichip.com/Products/Cables/USBTTLSerial.htm
If you have a development card it is very possible this type of interface is present.
On the software side you can use your programming language of choice as if it was interfacing with a seal port or use a terminal program like hyper terminal or Download teraterm http://ttssh2.sourceforge.jp/
Updated response:
100Hz is not a hard interface to make. At that rate you should use the serial interface if at all possible. The board you referenced has 2 full RS-232 connections. At that point you only need a way to connect that to your computer. If you have a PC with RS-232 connectors you only need a cable if you have a newer computer without you need a RS-232 to USB translator cable (like this one: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=768-1014-ND or google rs232 usb). This will give you a virtual com port on the pc to interface with the previously mentioned terminal programs or your custom software.
Update 2:
on the resource tab of the development board page you linked to there are several UART based fpga designs that you should be able to use as a starting point.
i.e. the "PicoBlaze Processor SPI Flash Programmer".
That board doesn't provide easy access to the USB interface from the FPGA as far as I can tell. It's just for configuration and debug.
Some of the newer boards and tools do allow something called hardware-in-the-loop testing where the simulator can upload data to the FPGA, wait it to calculate the results and then pull the data back. This is relatively common when using Xilinx's System Generator product as the simulations can be really long.
But I think with that board you'd be better off using the on board RS232 port to get data to and from the board. You will have to build the infrastructure to do it yourself though.
This may also give you some ideas:
http://www.1pin-interface.com/