Fixed-Point Blockset | ![]() ![]() |
External Mode
If you change a fixed-point block parameter by a sufficient amount (approximately a factor of two), the radix point changes. If you change a parameter such that the radix point moves during an external mode simulation (or during graphical editing) and you reconnect to the target, a checksum error occurs and you must rebuild the code.
For example, suppose a block has a parameter value of -2
. You then build the code and connect in external mode. While connected, you change the parameter to -4
. If the simulation is stopped and then restarted, this parameter change causes a radix point change. In external mode, the radix point is kept fixed. If you keep the parameter value of -4
and disconnect from the target, then when you reconnect, a checksum error occurs and you must rebuild the code.
![]() | Using External Mode or rsim Target | Rapid Simulation Target | ![]() |