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Dear forum members,
I am trying to compile the demo codes using Keil uVision 4.03 on the Tini2138 from NewMicros. They have examples specifically for the board and the older uVision 3.5.
I can download the compiled hex file via FlashMagic and the programs work on a terminal as advertised. However, when I try to recompile the codes under 4.03, nothing shows up on the terminal. I can recompile the blinky program fine, and the hex file will flash the LEDs. It seems to be a problem with serial communication via UART0.
Is there any change from uVision 3.5 to 4.03 that might cause this problem? Alternatively, is there anywhere I can download the uVision 3.5 from to test the demos with the version they were originally compiled in? Any help much appreciated.
Sean
No problem. I worked it out for myself: the 'Use memory Layout from target' checkbox needed to be checked. And I was trying to use the serial.c file in the help that had
PINSEL0 |= 0x00000050; // Enable TxD0 and RxD0
rather than
PINSEL0 |= 0x00000005; // Enable TxD0 and RxD0
for the LPC2138.
Rather than use "Magic Numbers" like 0x00000050 or 0x00000005, it'd be better to use symbolic definitions for the various bits.
If course, using the wrong symbolic definitions would still give the wrong results...