Technical information

Operating Precautions for CPDW9X/NT-CDR-V85X, Y-GHS-MULTI-V800

Customer Notification r20tu0003ed1812 101

No. a99

Address Assignment set to 0 with pragma ghs io

Version Information

V5.1.7D

Details:

The assignment of an address of a variable which has been declared with "#pragma ghs io var"

will be set to value 0. Prerequisite is that the assignment is placed in different C-Module than the

reference to the variable (see example).

Example:

C-Module 1:

extern volatile unsigned short* port_register_0;

volatile unsigned short * address_2;

void main (void)

{

address_2 = port_register_0;

}

C-Module 2:

#include "df3580_0.h"

volatile unsigned short* port_register_0 = &PMC0;

Command Line

ccv850 –cpu=v850e3v5 @df3358.ld –O test.c –o test

Workaround

1. Please use version V5.3.0, or

2. Update with latest patch for V5.1.7D, Patch04 or later from

http://www.renesas.eu/updates?id=26