> -----Original Message----- > From: openocd-development-boun...@lists.berlios.de > [mailto:openocd-development-boun...@lists.berlios.de] On > Behalf Of Thomas Kindler > Sent: 21 March 2009 19:20 > To: openocd-development@lists.berlios.de > Subject: [Openocd-development] STM32 flash performance > > Hi! > > I'm using a JTAGkey-Tiny to program my STM32F103VBT6 CPU, but > the flash performance seems to be _very_ low.. (around 6 kb/s). > > I already tried to enable the PLL and setting jtag_khz to > 6000 (which works), but it doesn't get any faster. Here's my > openocd.cfg: > > > source [find board/stm32f10x_128k_eval.cfg] > source [find interface/jtagkey-tiny.cfg] > > proc flash_image { filename } { > reset halt > > mww 0x40022000 0x2 # FLASH_ACR 2 waitstates > mww 0x40021004 0x380402 # RCC_CFGR HSI*16 = 64 MHz > mww 0x42420060 0x1 # RCC_CFGR(PLLON) Enable PLL > jtag_khz 6000 > > flash write_image erase $filename > > jtag_khz 500 > reset run > shutdown > } > > init >
The write time will include the erase, this can be speeded up by using the mass erase, eg. stm32x mass_erase 0 flash write_image $filename Cheers Spen _______________________________________________ Openocd-development mailing list Openocd-development@lists.berlios.de https://lists.berlios.de/mailman/listinfo/openocd-development
