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We will look into this problem.

A quick fix is to add the following line to the supplementary code section of Flowcode (View -> Project Options menu):

#include <rand.h>

I have used a similar technique to reprogram the CAN receive filters and interrupt enable flags in a MIAC (after allowing standard initialization). The following code was used in a C code block. // Request config mode. FCD_CAN0_CAN_Config(REQOP_CONFIG); //Initialise all the CAN device registers //en...

The oscillator on the PIC24 devices is particularly complicated. In addition to the CONFIG fuses, there are programmable registers that affect initial calculations and allow changes to be made during program execution. Your 4MHz estimation does not relate easily to the 10MHz xtal, but is one of the ...

If you are using the GetKeypadNumber keypad macro, the value returned can not be displayed directly using the PrintASCII macro, you will need to use the PrintNumber macro.

Using the GetKeypadAscii macro will return individual characters that can be displayed using PrintASCII

The selection of RA4 and 5 as comparator outputs is based on the CM2:0 mode bits. The modes listed as 'with Outputs' in the Comparator I/O Operating Modes table (Figure 12-1 in my copy of the 877 data sheet) control the I/O. The remaining modes leave the I/O unaffected. The multiplexers that control...

There was an error in the FCD file for the chip. Here is an update with the RC1 fault corrected:
The file should be copied into the FCD folder of your Flowcode installation - overwriting the original. Flowcode should be closed when you do this.

The hardware SPI connections are on the following pins: SDO = RB5 = PIN 37 SDI = RB7 = PIN 39 SCK = RB0 = PIN 32 CS and INT can be selected from any other RBx pins (RB is fully available on pins 32 to 39). The connection options for the EB018 are detailed in its data sheet: http://www.matrixmultimed...

Hello, We have recreated a slightly modified version of your program in Flowcode V4 and run it successfully. The program is attached. Removed The modified FCD file you were using is not available in V4, so a standard 16F88 target was used and configured appropriately. To match our test hardware: The...

Yes, It should be possible to power the EB018 at 5V and use a bi-directional logic level shifter between the 3.3V ARM and 5V CAN circuits.

We use the MAX3002 on several E-Blocks for this purpose (usually for a 5V microcontroller and 3.3V peripheral).

Hello,

The EB018 CAN E-block is not recommended for 3.3V systems.

Even if it is powered from a separate 5V supply (required for the MCP2551), the logic thresholds of the MCP2515 will not be compatible with a 3.3V microcontroller.

I can confirm that the CAN component has changed since Flowcode V2, but we are not aware of any problems driving the CS pin.

Which build of Flowcode V4 are you using?

Can you post a copy of the .fcf and .c files generated by a non-working program?

Enabling flow control causes the RS232 component to automatically test the pin allocated to the CTS function before each character transmission. If flow control is disabled, the CTS signal (as seen by the microcontroller) from an external device can be connected to any available pin and read as a ba...

I have downloaded your program to a 16F88 and it appears to be working.

The chip is configured correctly
The transmit signal can be seen on RA1 using an oscilloscope.
The correct text is displayed in Hyperterminal when transmitted via an EB015, RS232 E-block.

The flow control for the RS232 component is character based, so transmission of a long message will stop within 1 character of CTS being de-asserted. If you need flow control to be message based (allowing a full message to be transmitted after the first character has been accepted), the component fl...

By "remove CTS during transmission" I simply meant de-asserting CTS (as seen by the Flowcode code) during transmission of a data stream. This usually happens conveniently between bytes, but has been seen to happen in the middle of a byte with some devices. The Flowcode RS232 component code (with flo...

All the devices we have tested seem to be capable of dealing with the occasional character that gets transmitted at the instant the CTS is removed. Most devices seem to be simply managing their input queues, and remove CTS during transmission of the character that causes the buffer to become full (p...

Your program, using the RC5 component, should work. Generating a 1ms pulse every time a valid signal is received. If you are using the EB060 RC5 E-Block, or similar hardware, the received signal will be inverted. The 'Invert signal' check box in the component property panel needs to be checked to co...

You can use the input icon in its 'Single Bit' mode (using the radio buttons below the port selector) to isolate the CTS pin (Port C, Pin 4 in this case) and return the logic level directly (1 or 0). The same result can be achieved by using a switch component connected to the pin. The time delay bet...

With hardware flow control enabled, the RS232 component confirures the selected CTS line as an input.
The input can also be read at any point in the flowchart by using an input icon or switch component connected to the same pin.
Neither will cause a conflict with RS232 component.

When hardware flow control is enabled, the RS232 component controls the RTS pin - asserting the line when waiting for a received character, and releasing it then a character is received or the timeout period has elapsed. When transmitting, the program waits for the CTS line to be asserted before sen...

Hello, The Flowcode RS232 component can be used in hardware and software mode. Software mode uses general purpose I/O and delays to create a bit-banged UART. The TX and RX pins are allocated in the component Connections panel. Flow control and other properties are supported. Multiple software RS232 ...

Hello, The following assumes you are using the CAN E-Block as the interface hardware. When a Flowcode program calls the CAN component CheckRX macro, if the hardware buffer being referenced in the CAN control chip has received a new message, the contents are read back to a local software buffer in th...

The register values for the hardware uart Baud rate are calculated by the RS232 component and defined in the C code (9600 Baud): #define RS232_2098342_TXSTA_VAL 4 #define RS232_2098342_SPBRG_VAL 127 Note: RS232_2098342_ is a unique component ID that changes with each compilation. The values are load...

Hello Andreas, I have checked both of your programs, and there still seems to be a problem with the connections. The correct pins are being used for Jumper A with the 16F88, and Jumper B with the 16F877A. But in both cases the SDI and SDO pins have been swapped. The connections displayed by Flowcode...

Hello, The RF component help file information appears to be out of date. As there was no definitive way to detect successful initialization of the RF module, the initialization macro now returns an integer value containing the module's status register contents. The returned value is dependent on the...