"Microcomputer Architecture: low-level programming methods and applications of the M68HC908GP32" by D.E. Bolanakis, E. Glavas, G.A. Evangelakis, K.T. Kotsis, and T. Laopoulos
A link on their site lets you download a pdf copy:
Welcome the website http://electronics.physics.auth.gr/microcon
I don't know C, but I can get by in assembly on the 9s12. Not so much with the 9s08.
I'm trying to make a one-shot out of a timer in assembly, on 9s08QG4.
From Jim Donelson in another thread:
| TPM1C0V = TPM1CNT + MY_DELAY; |
For my application, MY_DELAY is the wiper voltage of a pot. At midrange it's $80, which should make a 512usec pulse:
(32/8E6) * 128 = 512 usec
lalala (singing)
ldhx TPMCNT
add MY-DELAY
lalal...la...???
How do I add that so I can put it into TPMCOV??
So, after much googling for assembly help, I found THAT book which shows 16 bit addition in assembly:
| | ORG | RAM_MEMORY |
| intA | RMB | 2 |
| intB | RMB | 2 |
| sum | RMB | 3 |
| | ORG | PROGRAM_MEMORY |
| | LDA | intA+1 |
| | ADD | intB+1 |
| | STA | sum+2 |
| | LDA | intA+0 |
| | ADC | intB+0 |
| | STA | sum+1 |
| | LDA | sum+0 |
| | ADC | #!0 |
| | STA | sum+0 |
I should be able to take it from here.
