Steps to reproduce unknown. We have recently added code to log reports about reason for reboot on the SD card, and finally got one convincingly looking error report
Code: Select all
Last error type HardFault
type: 0x00000003 addr: 0x00000000 CSFR: 0x00000000
r0 0x08091de4
r1 0x08091a28
r2 0x000000c9
r3 0x00000000
r12 0x2002b738
lr (thread) 0x0020b141
pc 0x0027740a
xpsr 0x01000053.elf mentions 0x08091de4 at the bottom of _usb_ep0out probably "EP0 state machine invalid state"?
Code: Select all
0020efa0 <_usb_ep0out>:
20efa0: b510 push {r4, lr}
20efa2: 4604 mov r4, r0
20efa4: f890 304c ldrb.w r3, [r0, #76] ; 0x4c
20efa8: 2b15 cmp r3, #21
20efaa: d83f bhi.n 20f02c <_usb_ep0out+0x8c>
20efac: e8df f003 tbb [pc, r3]
20efb0: 3e3e3e2a .word 0x3e3e3e2a
20efb4: 3e2d3e3e .word 0x3e2d3e3e
20efb8: 2a2a2a3e .word 0x2a2a2a3e
20efbc: 3e3e3e3e .word 0x3e3e3e3e
20efc0: 3e3e3e3e .word 0x3e3e3e3e
20efc4: 0b1f .short 0x0b1f
20efc6: 230b movs r3, #11
20efc8: f880 304c strb.w r3, [r0, #76] ; 0x4c
20efcc: 2320 movs r3, #32
20efce: f383 8811 msr BASEPRI, r3
20efd2: f7fd fdbd bl 20cb50 <_dbg_check_lock_from_isr>
20efd6: 2300 movs r3, #0
20efd8: 461a mov r2, r3
20efda: 4619 mov r1, r3
20efdc: 4620 mov r0, r4
20efde: f7ff fdef bl 20ebc0 <usbStartTransmitI>
20efe2: f7fd fde5 bl 20cbb0 <_dbg_check_unlock_from_isr>
20efe6: 2300 movs r3, #0
20efe8: f383 8811 msr BASEPRI, r3
20efec: e01d b.n 20f02a <_usb_ep0out+0x8a>
20efee: 68c3 ldr r3, [r0, #12]
20eff0: 699b ldr r3, [r3, #24]
20eff2: 685b ldr r3, [r3, #4]
20eff4: b9cb cbnz r3, 20f02a <_usb_ep0out+0x8a>
20eff6: 6d83 ldr r3, [r0, #88] ; 0x58
20eff8: b103 cbz r3, 20effc <_usb_ep0out+0x5c>
20effa: 4798 blx r3
20effc: 2300 movs r3, #0
20effe: f884 304c strb.w r3, [r4, #76] ; 0x4c
20f002: e012 b.n 20f02a <_usb_ep0out+0x8a>
20f004: 480b ldr r0, [pc, #44] ; (20f034 <_usb_ep0out+0x94>)
20f006: f7fc f893 bl 20b130 <chSysHalt>
20f00a: 2100 movs r1, #0
20f00c: f7fa ff18 bl 209e40 <usb_lld_stall_in>
20f010: 2100 movs r1, #0
20f012: 4620 mov r0, r4
20f014: f7fa ff0c bl 209e30 <usb_lld_stall_out>
20f018: 6863 ldr r3, [r4, #4]
20f01a: 681b ldr r3, [r3, #0]
20f01c: b113 cbz r3, 20f024 <_usb_ep0out+0x84>
20f01e: 2106 movs r1, #6
20f020: 4620 mov r0, r4
20f022: 4798 blx r3
20f024: 2306 movs r3, #6
20f026: f884 304c strb.w r3, [r4, #76] ; 0x4c
20f02a: bd10 pop {r4, pc}
20f02c: 4801 ldr r0, [pc, #4] ; (20f034 <_usb_ep0out+0x94>)
20f02e: f7fc f87f bl 20b130 <chSysHalt>
20f032: bf00 nop
20f034: 08091de4 .word 0x08091de4
...
we are still on chibi 20 but looks like no changed in hal_usb.c since 20?
our issue https://github.com/rusefi/rusefi/issues/7623
