URL
https://opencores.org/ocsvn/copyblaze/copyblaze/trunk
Subversion Repositories copyblaze
Compare Revisions
- This comparison shows the changes necessary to convert path
/copyblaze
- from Rev 42 to Rev 43
- ↔ Reverse comparison
Rev 42 → Rev 43
/trunk/copyblaze/sw/code/pBlaze/wb_uart/wb_uart.asm
7,6 → 7,13
; it use this module : |
; wb_uart_08.vhd |
|
WB_UART_STATUS .EQU 0x00 |
WB_UART_DIV_LOW .EQU 0x04 |
WB_UART_DIV_HIGH .EQU 0x05 |
WB_UART_DATA .EQU 0x08 |
|
wb_data_to_wb .EQU s0 |
wb_data_from_wb .EQU s1 |
; |
|
; ========================================================== |
13,7 → 20,46
start: |
; ========================================================== |
|
; initialize the wb_uart registers |
LOAD wb_data_to_wb, 0x02 ; |
WBWRSING wb_data_to_wb, WB_UART_DIV_LOW ; DIV_LOW = 0x02 |
|
LOAD wb_data_to_wb, 0x00 ; |
WBWRSING wb_data_to_wb, WB_UART_DIV_HIGH ; DIV_HIGH = 0x00 |
|
; LOAD wb_data_to_wb, 0x04 ; |
; WBWRSING wb_data_to_wb, WB_UART_STATUS ; STATUS = 0x04 : rx_irqen=1 |
|
LOAD wb_data_to_wb, 0x08 ; |
WBWRSING wb_data_to_wb, WB_UART_STATUS ; STATUS = 0x08 : tx_irqen=1 |
|
; write a data to the UART |
LOAD wb_data_to_wb, 0x55 ; |
WBWRSING wb_data_to_wb, WB_UART_DATA ; |
|
; enable interrupts |
EINT |
end: |
JUMP end |
; |
|
; ************************* |
; Interrupt Service Routine |
; ************************* |
ISR: |
WBRDSING wb_data_from_wb, WB_UART_STATUS ; read the status |
|
ADD wb_data_to_wb, 0x01 |
|
WBWRSING wb_data_to_wb, WB_UART_DATA ; |
|
|
RETI ENABLE |
; RETI DISABLE |
; ************************* |
; End ISR Interrupt Handler |
; ************************* |
|
.ORG 0x3FF |
VECTOR: |
JUMP ISR |
/trunk/copyblaze/sw/code/pBlaze/wb_uart/Makefile
25,7 → 25,7
.SUFFIXES : .psm .mem .vhd .psh |
|
# assemble and merge |
all: $(ENTITY).vhd |
all: clean $(ENTITY).vhd |
|
# assemble # |
$(ENTITY).mem: $(ASM_SRC) |