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The attached program works on my F746ZG board. No hardware mods required.

stefan.erni is correct. The Nucleo-F746ZG (and probably all other 144-pin Nucleo boards) use USART3, TX = PD8, RX = PD9 for the USB UART. No links or modifications are required. I will edit my earlier post to include this information. The information for the Nucleo boards seems to apply to all chip ...

This should be using UARTs I've been using the F469 Discovery as an example but the same should apply to the F429, with the following changes: The ST-Link USB - USART is USART1, TX = PA9, RX = PA10. Connection requires links SB11 and SB15 (on the reverse side of the board) to be fitted. The schemati...

Do you get the same problem with Win7 and Win10? Is there anything you can do to confirm that the program is running correctly? Example: Temporarily use USART6 on D0/D1 of the Arduino connectors and use an oscilloscope or USB-UART cable to check the signals. To solve my original problem (the same sy...

Hello The ST-Link USB UART does not need to be enabled, it should be available whenever the ST-Link chip is powered. I did have some problems (probably driver related) with one of my PCs. The COM port was visible but no data could be transferred unless the Windows (Win7) driver was uninstalled and r...

The USB UART, provided on most ST boards via the ST-Link chip, can be selected from Flowcode. It seems that all Nucleo boards (32-pin, 64-pin and 144-pin versions) have connections to the USB UART by default. Not all Discovery boards provide this feature, but the F429, F469 and F746 LCD boards do. T...

The 32 node limit is an electrical restriction indicated in data sheets for the SN75176 and compatible devices. The transmitter circuits are capable of driving 32 parallel 'unit loads' of 12K each (standard node input impedance). Special measures need to be taken to reach the theoretical software li...

Yes, for a 2-dimensional array the parameters can be considered to be:

Array[Row][Column]

Another possibility, if all the individual arrays are the same size and type, might be the use of a single, 2-dimensional array (I am not currently able to test this): const double L[x][y] = { {1,2,3,4,.,.,.,.,.}, {.,.,.,.,.,.,.,.,.,.,.,.,.,.}, : : : {.,.,.,.,.,.,.,.,.,.,.,.,.,.} }; where x is the n...

Hello, Yes, it is possible to change the array data type to suit the range of the data values being stored. The Flowcode variables used to handle the data (including the table reader macro return variable) will also need to be changed to match the selected data type. The C data types that are direct...

STK500 is the standard programmer protocol used by the Arduino bootloader and supported by AVRDUDE (no STK500 hardware is required). There are some minor variations that are covered by AVRDUDE using the parameters stk500, stk500v2, etc. The batch files supplied in the first post in this thread must ...

You could try the AVRDUDE option in the programmer parameter string (instead of STK500) to see if the AVRISPmkII driver has been changed by the Flowcode update. If you have AVR Studio installed, you can check if it is able to communicate with the AVRISPmkII. Or use Device Manager on your PC to displ...

If the common connections of a uni-polar stepper motor are not used, some motors can behave as bi-polar motors. The common connections are effectively centre-taps in coils from A to B, and from C to D. When the commons are connected, each of the four coil connections only requires a uni-polar drive ...

Hello, Unfortunately, interrupts do not simulate well in Flowcode V4. This problem is being addressed in V5. The CAN component config register settings are displayed in 8-bit mode (as used by external CAN) in the component property page, but are combined in the C code to produce the correct values f...

We haven't used the JTAGICE, but here is a verion of the avrc.bat file that has been modified using the AVRDUDE and AVR Studio documentation: avrc_jtagice2isp.zip The following changes have been made to the top lines of the batch file. @SET Programmer=jtag2isp @SET DUDEPort=usb @SET STKPort=USB @SET...

The code is a generic example and will need to be modified to suit your own requirements. Removing the unnecessary code for the second filter and interrupt flags allows the program to compile. Alternatively, a Flowcode variable called Mod_int can be declared. This will allow the first filter of Rx b...

There is no specific Rx ID. The controller chip contains several filters and filter masks that allow individual message IDs, or groups of IDs, to accepted by individual Rx buffers. The example in the linked thread should do what you need. The section upto and including the first delay_10us command r...

The thread linked below shows how receive filters can be reprogrammed using C after the Flowcode component has initialized the CAN controller with default values. The new filter values can be based on calculations and changed on-the-fly. This technique can also be used to change other settings (mask...

I have tested the basic operation of your program (not the actual RF transmissions). It was failing to run because the Watchdog was enabled in the chip configuration - causing repeated resets. The component connections are correct for the jumpers to be in position B. The program will also fail to ru...

The RF module uses a form of flow control on the SPI to inform the microcontroller whether it is ready to receive data. This involves holding the SDI line low while busy, and setting it high when any preceding operations have been completed. The RF component checks the SDI line when necessary and wa...

Hello, giveio is required to allow AVRDUDE to gain access to the parallel port. I have attached a copy of the AVRDUDE documentation. Page 29 includes instructions on the use of the various batch files. avrdude.zip I have tried them on my XP (SP3) PC and they appear to work. Running them from cmd.exe...

Hello James, I have tested the Tx and Rx programs you sent us. They worked first time, but gave improved performance (more reliable detection and fewer spurious receives) when the rf settings were adjusted. I increased the transmit frequency deviation, reduced the receiver bandwidth, enabled the ext...

Hello Thierry, The STK200 is not one of the programmers officially supported by Flowcode. As a result, we do not have much knowledge of it, or the ability to test it. However, the AVRDUDE software supplied with Flowcode does appear to have settings for the STK200, so I have modified one of the Flowc...

Hello, The 7Seg4 component (along with LED array and Switch bank) is becomming a legacy component. New properties, including polarity, are being added to the single versions of the components (7Seg1, LED, Switch). A common cathode 7seg4 module can be made from 4 x 7seg1 components. Each component sh...

The standard xtals used have a typical tolerance of +/-50ppm. This affects all operations in the microcontroller and could directly contribute nearly 4.5 seconds of drift within a counter/timer over a 24 hour period (86400 seconds). The load capacitors used in the oscillator circuit also have 'typic...