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sending works again with n20.

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This commit is contained in:
Martin Preuss
2025-05-31 14:20:05 +02:00
parent 0b8cb929b7
commit 061119819f
3 changed files with 95 additions and 77 deletions
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14
avr/modules/uart_bitbang2/iface.asm
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@@ -49,6 +49,12 @@ UART_BitBang_Init:
rcall NET_Interface_Init ; (R16, R17, X)
; init hw
cbi COM_DATA_DDR, COM_DATA_PIN ; set TXD port as input
cbi COM_DATA_OUTPUT, COM_DATA_PIN ; disable internal pullup for DATA
cbi COM_ATTN_DDR, COM_ATTN_PIN ; set ATTN port as input
cbi COM_ATTN_OUTPUT, COM_ATTN_PIN ; disable internal pullup for ATTN
; enable IRQ
sbi COM_IRQ_ADDR_ATTN, COM_IRQ_BIT_ATTN ; enable pin change irq for ATTN line
in r16, GIMSK ; enable pin change irq PCIE0 or PCIE1
ori r16, (1<<COM_IRQ_GIMSK_ATTN)
@@ -123,16 +129,12 @@ uartBitBang_sendNextPkg:
rcall NET_Buffer_Locate ; get pointer to buffer (R17)
brcc uartBitBang_sendNextPkg_end
adiw xh:xl, 1 ; skip buffer header
rcall uartBitbang_SendMsg ; (R16, R17, R21, R22, X)
brcc uartBitBang_sendNextPkg_error
rcall uartBitbang_SendMsg ; (R16, R17, R21, R22, R24, R25, X)
brcc uartBitBang_sendNextPkg_end
rcall NET_Interface_GetNextOutgoingMsgNum ; remove from stack (R17, R18, X)
rcall NET_Buffer_ReleaseByNum ; release buffer (R16, X)
ldi r16, NET_IFACE_OFFS_PACKETSOUT_LOW
rcall NET_Interface_IncCounter16 ; (R24, R25)
sec
rjmp uartBitBang_sendNextPkg_end
uartBitBang_sendNextPkg_error:
rcall NET_Interface_IncCounter16 ; (R24, R25)
uartBitBang_sendNextPkg_end:
ret
; @end