avr
/
avrdude
mirror of https://github.com/mariusgreuel/avrdude.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Submitted by Martin Thierer: 

patch #10017: uspasp / tpi: Automatically clear configuration byte (fuse) before writing it
* usbasp.c (usbasp_tpi_paged_write): clear fuse region before writing it



git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1468 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch 2021-11-07 20:10:24 +00:00
parent 62a00cedc7
commit 91948428a6
3 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ChangeLog
View File

@ -1,3 +1,9 @@
2021-11-07 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Submitted by Martin Thierer:
patch #10017: uspasp / tpi: Automatically clear configuration byte (fuse) before writing it
* usbasp.c (usbasp_tpi_paged_write): clear fuse region before writing it
2021-11-07 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Submitted by Michael Petersen:

1
NEWS
View File

@ -102,6 +102,7 @@ Current:
patch #9744: Patch for ATMega324A support
patch #10000: Add support for extended UPDI device context
patch #9697: Add iseavrprog support
patch #10017: uspasp / tpi: Automatically clear configuration byte (fuse) before writing it
* Internals:
- New avrdude.conf keyword "family_id", used to verify SIB attributes

18
usbasp.c
View File

@ -1156,6 +1156,24 @@ static int usbasp_tpi_paged_write(PROGRAMMER * pgm, AVRPART * p, AVRMEM * m,
pr = addr + m->offset;
writed = 0;
/* must erase fuse first */
if(strcmp(m->desc, "fuse") == 0)
{
/* Set PR */
usbasp_tpi_send_byte(pgm, TPI_OP_SSTPR(0));
usbasp_tpi_send_byte(pgm, (pr & 0xFF) | 1 );
usbasp_tpi_send_byte(pgm, TPI_OP_SSTPR(1));
usbasp_tpi_send_byte(pgm, (pr >> 8) );
/* select SECTION_ERASE */
usbasp_tpi_send_byte(pgm, TPI_OP_SOUT(NVMCMD));
usbasp_tpi_send_byte(pgm, NVMCMD_SECTION_ERASE);
/* dummy write */
usbasp_tpi_send_byte(pgm, TPI_OP_SST_INC);
usbasp_tpi_send_byte(pgm, 0x00);
usbasp_tpi_nvm_waitbusy(pgm);
}
/* Set PR to flash */
usbasp_tpi_send_byte(pgm, TPI_OP_SSTPR(0));
usbasp_tpi_send_byte(pgm, (pr & 0xFF) | 1 );