diff options
Diffstat (limited to 'src/usbd_stm32l100_devfs_asm.S')
| -rw-r--r-- | src/usbd_stm32l100_devfs_asm.S | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/src/usbd_stm32l100_devfs_asm.S b/src/usbd_stm32l100_devfs_asm.S index cc0a2f3..956d942 100644 --- a/src/usbd_stm32l100_devfs_asm.S +++ b/src/usbd_stm32l100_devfs_asm.S @@ -623,18 +623,14 @@ _ep_config: cmp r1, #0x00 //is a control ep ? bne .L_epc_exit .L_epc_setuprx: - mov r3, r2 + movs r3, r2 cmp r2, #62 bls .L_epc_rxbb movs r3, #0x1F - ands r3, r2 - bne .L_epc_rxaa - subs r2, #0x20 -.L_epc_rxaa: + adds r2, r3 bics r2, r3 - lsrs r3, r2, #4 - adds r3, #0x40 - adds r2, #0x20 + lsrs r3, r2, #5 + adds r3, #0x3E .L_epc_rxbb: lsls r3, #9 ldr r5, =#USB_PMABASE |