It's unclear what you're asking.
Do you want to know how to enable the SCI1 clock?
Hasn't the code you posted the answer?
(SCGC1_SCI1 = 0x01; //enable SCI1 module clock)
Actually, SCGC1_SCI1 is a bit, not a register and bit. But I don't know CW, whether it 'magically' understands to which register the bit belongs based on this naming convention,
With the following definitions:
SCGC1 equ $00001808 ;*** SCGC1 - System Clock Gating Control 1 Register; 0x00001808 ***
SCGC1_SCI1 equ 1 ; SCI1 Clock Gate Control
mSCGC1_SCI1 equ %00000010
you would need something like:
SCGC1 |= mSCGC1_SCI1;
in C, and something like:
lda SCGC1
ora #mSCGC1_SCI1
sta SCGC1
in assembly language.
This has to happen anytime before you write to any SCI1 registers (put simply, without clock to the relevant SCI module, don't expect writing to any SCI register to do anything.)
