diff options
| -rw-r--r-- | src/target/cortex_swjdp.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/target/cortex_swjdp.c b/src/target/cortex_swjdp.c index a4a997b8..0b20bf63 100644 --- a/src/target/cortex_swjdp.c +++ b/src/target/cortex_swjdp.c @@ -171,12 +171,16 @@ int scan_inout_check_u32(swjdp_common_t *swjdp, u8 instr, u8 reg_addr, u8 RnW, u int swjdp_transaction_endcheck(swjdp_common_t *swjdp) { + int retval; int waitcount = 0; u32 ctrlstat; + keep_alive(); + scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); - jtag_execute_queue(); + if ((retval=jtag_execute_queue())!=ERROR_OK) + return retval; swjdp->ack = swjdp->ack & 0x7; @@ -198,7 +202,8 @@ int swjdp_transaction_endcheck(swjdp_common_t *swjdp) } scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); - jtag_execute_queue(); + if ((retval=jtag_execute_queue())!=ERROR_OK) + return retval; swjdp->ack = swjdp->ack & 0x7; } @@ -224,7 +229,8 @@ int swjdp_transaction_endcheck(swjdp_common_t *swjdp) /* Clear Sticky Error Bits */ scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_WRITE, swjdp->dp_ctrl_stat | SSTICKYORUN | SSTICKYERR, NULL); scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ, 0, &ctrlstat); - jtag_execute_queue(); + if ((retval=jtag_execute_queue())!=ERROR_OK) + return retval; LOG_DEBUG("swjdp: status 0x%x", ctrlstat); @@ -235,7 +241,8 @@ int swjdp_transaction_endcheck(swjdp_common_t *swjdp) ahbap_read_system_atomic_u32(swjdp, NVIC_BFAR, &nvic_bfar); LOG_ERROR("dcb_dhcsr 0x%x, nvic_shcsr 0x%x, nvic_cfsr 0x%x, nvic_bfar 0x%x", dcb_dhcsr, nvic_shcsr, nvic_cfsr, nvic_bfar); } - jtag_execute_queue(); + if ((retval=jtag_execute_queue())!=ERROR_OK) + return retval; return ERROR_JTAG_DEVICE_ERROR; } |