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Add debug USB commands to read ram/flash/i2c

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This commit is contained in:
Tobias Diedrich
2022-01-22 23:36:02 +01:00
parent 7c3b45ad94
commit c8c8d47fa6
1 changed files with 46 additions and 0 deletions
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main.s
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@@ -1531,6 +1531,12 @@ _setup_dispatch_table:
JMP _usb_setup_default
DW 0xa103 ; HID GET_PROTOCOL
JMP _usb_setup_default
DW 0xc090
JMP _usb_dth_vend_read_ram
DW 0xc092
JMP _usb_dth_vend_read_i2c
DW 0xc094
JMP _usb_dth_vend_read_code
DW 0xFFFF
JMP _usb_setup_default
@@ -1926,6 +1932,46 @@ _usb_dth_get_status:
B0MOV txSizeLo, A
JMP _usb_write_ep0
_usb_dth_vend_read_ram:
MOV A, #0
B0MOV UDP0, A
B0MOV A, wIndexLo
B0MOV Z, A
B0MOV A, wIndexHi
B0MOV Y, A
B0MOV A, wValueLo
B0MOV A, @YZ
B0MOV UDR0_W, A
MOV A, #0x21 ; Write 1 byte
B0MOV UE0R, A
RET
_usb_dth_vend_read_code:
MOV A, #0
B0MOV UDP0, A
B0MOV A, wIndexLo
B0MOV Z, A
B0MOV A, wIndexHi
B0MOV Y, A
MOVC
B0MOV UDR0_W, A
INCMS UDP0
B0MOV A, R
B0MOV UDR0_W, A
MOV A, #0x22 ; Write 2 bytes
B0MOV UE0R, A
RET
_usb_dth_vend_read_i2c:
MOV A, #0x21 ; Write 1 byte
B0MOV UE0R, A
RET
_usb_htd_set_configuration:
; Only one configuration, nothing to do.
MOV A, #0x20 ; ACK with no TX