From: Salvador Arroyo Date: Sat, 1 Sep 2012 11:50:39 +0000 (+0200) Subject: Pic32mx.cfg: Change system clock to 8Mhz after reset-init. X-Git-Tag: v0.7.0-rc1~160 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=115b7be42610cd276bab2f9b08a7e11e05cc889e;p=openocd Pic32mx.cfg: Change system clock to 8Mhz after reset-init. As for openocd 0.6.0-rc2 the function mips32_pracc_fastdata_xfer() should now work at a scan frequency up to 1200Khz. Mainly usefull to increase programming speed. Also verify_image should be slightly faster. Change-Id: I1e9b2be73690a4597e2f6ba069c1205026850f07 Signed-off-by: Salvador Arroyo Reviewed-on: http://openocd.zylin.com/805 Tested-by: jenkins Reviewed-by: Spencer Oliver --- diff --git a/tcl/target/pic32mx.cfg b/tcl/target/pic32mx.cfg index 598c905c..8a8eea0e 100644 --- a/tcl/target/pic32mx.cfg +++ b/tcl/target/pic32mx.cfg @@ -62,6 +62,20 @@ $_TARGETNAME configure -event reset-init { mww 0xbf882020 $_WORKAREASIZE # BMXDUPBA: 0k user program - (BMXDUPBA - BMXDUDBA) mww 0xbf882030 $_WORKAREASIZE + + # + # Set system clock to 8Mhz if the default clock configuration is set + # + + # SYSKEY register, make sure OSCCON is locked + mww 0xbf80f230 0x0 + # SYSKEY register, write unlock sequence + mww 0xbf80f230 0xaa996655 + mww 0xbf80f230 0x556699aa + # OSCCON register + 4, clear OSCCON FRCDIV bits: 24, 25 and 26, divided by 1 + mww 0xbf80f004 0x07000000 + # SYSKEY register, relock OSCCON + mww 0xbf80f230 0x0 } set _FLASHNAME $_CHIPNAME.flash0