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| author | Dean Camera <dean@fourwalledcubicle.com> | 2013-10-27 18:15:03 +0100 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2013-10-27 18:15:03 +0100 |
| commit | cf41d16bc709c31d7ee8af0432256c8c8a3b4469 (patch) | |
| tree | ab6569577915645f0edb52b0f7efddd1754f3555 /Projects/AVRISP-MKII | |
| parent | 7024bb4c799b3573627323fa1305142739ed3500 (diff) | |
| download | lufa-cf41d16bc709c31d7ee8af0432256c8c8a3b4469.tar.gz lufa-cf41d16bc709c31d7ee8af0432256c8c8a3b4469.tar.bz2 lufa-cf41d16bc709c31d7ee8af0432256c8c8a3b4469.zip | |
Only issue the REPEAT instruction in the clone programmer if needed to reduce protocol overhead.
Diffstat (limited to 'Projects/AVRISP-MKII')
| -rw-r--r-- | Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c index 06a4f7222..43c540e17 100644 --- a/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c +++ b/Projects/AVRISP-MKII/Lib/XPROG/XMEGANVM.c @@ -240,9 +240,12 @@ bool XMEGANVM_ReadMemory(const uint32_t ReadAddress, XPROGTarget_SendByte(PDI_CMD_ST | (PDI_POINTER_DIRECT << 2) | PDI_DATSIZE_4BYTES); XMEGANVM_SendAddress(ReadAddress); - /* Send the REPEAT command with the specified number of bytes to read */ - XPROGTarget_SendByte(PDI_CMD_REPEAT | PDI_DATSIZE_1BYTE); - XPROGTarget_SendByte(ReadSize - 1); + if (ReadSize > 1) + { + /* Send the REPEAT command with the specified number of bytes to read */ + XPROGTarget_SendByte(PDI_CMD_REPEAT | PDI_DATSIZE_1BYTE); + XPROGTarget_SendByte(ReadSize - 1); + } /* Send a LD command with indirect access and post-increment to read out the bytes */ XPROGTarget_SendByte(PDI_CMD_LD | (PDI_POINTER_INDIRECT_PI << 2) | PDI_DATSIZE_1BYTE); |