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How many bytes will printf() take up in a non debug-monitor environment? Also, is it easy to set up printf() to map to a second UART? I will need control of the UART ISR so that I can handle receives appropriately. How will this confict with printf()?
I just compiled and linked the HELLO example project. The following excerpt from the MAP file (*.m51) lists the starting location and sizes of the modules inthe program.
LINK MAP OF MODULE: Hello (HELLO) TYPE BASE LENGTH RELOCATION SEGMENT NAME ----------------------------------------------------- * * * * * * * D A T A M E M O R Y * * * * * * * REG 0000H 0008H ABSOLUTE "REG BANK 0" DATA 0008H 0014H UNIT _DATA_GROUP_ 001CH 0004H *** GAP *** BIT 0020H.0 0001H.1 UNIT _BIT_GROUP_ 0021H.1 0000H.7 *** GAP *** IDATA 0022H 0001H UNIT ?STACK * * * * * * * C O D E M E M O R Y * * * * * * * CODE 0000H 0003H ABSOLUTE CODE 0003H 035CH UNIT ?PR?PRINTF?PRINTF CODE 035FH 008EH UNIT ?C?LIB_CODE CODE 03EDH 0027H UNIT ?PR?PUTCHAR?PUTCHAR CODE 0414H 001BH UNIT ?PR?MAIN?HELLO CODE 042FH 000DH UNIT ?CO?HELLO CODE 043CH 000CH UNIT ?C_C51STARTUP
CODE 0003H 035CH UNIT ?PR?PRINTF?PRINTF