diff options
Diffstat (limited to 'src/jtag/drivers/stlink_usb.c')
| -rw-r--r-- | src/jtag/drivers/stlink_usb.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/jtag/drivers/stlink_usb.c b/src/jtag/drivers/stlink_usb.c index b4944f56..708b24b4 100644 --- a/src/jtag/drivers/stlink_usb.c +++ b/src/jtag/drivers/stlink_usb.c @@ -872,8 +872,13 @@ static int stlink_usb_step(void *handle) h = (struct stlink_usb_handle_s *)handle; - if (h->jtag_api == STLINK_JTAG_API_V2) - return stlink_usb_write_debug_reg(handle, DCB_DHCSR, DBGKEY|C_STEP|C_DEBUGEN); + if (h->jtag_api == STLINK_JTAG_API_V2) { + /* TODO: this emulates the v1 api, it should really use a similar auto mask isr + * that the cortex-m3 currently does. */ + stlink_usb_write_debug_reg(handle, DCB_DHCSR, DBGKEY|C_HALT|C_MASKINTS|C_DEBUGEN); + stlink_usb_write_debug_reg(handle, DCB_DHCSR, DBGKEY|C_STEP|C_MASKINTS|C_DEBUGEN); + return stlink_usb_write_debug_reg(handle, DCB_DHCSR, DBGKEY|C_HALT|C_DEBUGEN); + } stlink_usb_init_buffer(handle, STLINK_RX_EP, 2); |