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-rw-r--r--src/target/dsp563xx_once.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/target/dsp563xx_once.c b/src/target/dsp563xx_once.c
index d19323ee..d95dcdfd 100644
--- a/src/target/dsp563xx_once.c
+++ b/src/target/dsp563xx_once.c
@@ -29,6 +29,9 @@
#include "dsp563xx.h"
#include "dsp563xx_once.h"
+#define JTAG_STATUS_STATIC_MASK 0x03
+#define JTAG_STATUS_STATIC_VALUE 0x01
+
#define JTAG_STATUS_NORMAL 0x01
#define JTAG_STATUS_STOPWAIT 0x05
#define JTAG_STATUS_BUSY 0x09
@@ -100,19 +103,16 @@ int dsp563xx_once_target_status(struct jtag_tap *tap)
uint8_t jtag_status;
if ((err = dsp563xx_jtag_sendinstr(tap, &jtag_status, JTAG_INSTR_ENABLE_ONCE)) != ERROR_OK)
- return err;
+ return TARGET_UNKNOWN;
if ((err = jtag_execute_queue()) != ERROR_OK)
- return err;
+ return TARGET_UNKNOWN;
- if ((jtag_status & 1) != 1)
- {
+ /* verify correct static status pattern */
+ if ( (jtag_status & JTAG_STATUS_STATIC_MASK) != JTAG_STATUS_STATIC_VALUE )
return TARGET_UNKNOWN;
- }
if (jtag_status != JTAG_STATUS_DEBUG)
- {
return TARGET_RUNNING;
- }
return TARGET_HALTED;
}