bfe1a6c892
This update adds support for the STM32Lx 384kb dual bank flash. Previously there was a problem when writing an image that was larger than 192Kb. That lead to openocd printing out two error messages like "Error: access denied / write protected" and "Error: invalid program address". The reason was that the stm32lx driver tried to write half pages which overlapped into the next flash bank. A new configuration file stm32lx_dual_bank.cfg can be used for stm32lx chips with dual bank flash (256kb or 384kb devices). A sanity check was added for probed flash size values to fix the issue seen on some ST samples that answered incorrectly. Change-Id: I69e25131983d88613be8606b438f98870c5f1e52 Signed-off-by: Johan Almquist <johan.almquist@assaabloy.com> Reviewed-on: http://openocd.zylin.com/1125 Tested-by: jenkins Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
48 lines
1.2 KiB
INI
48 lines
1.2 KiB
INI
#
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# STM32lx stlink pseudo target
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#
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if { [info exists CHIPNAME] == 0 } {
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set CHIPNAME stm32lx
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}
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if { [info exists CPUTAPID] == 0 } {
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set CPUTAPID 0x2ba01477
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}
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if { [info exists WORKAREASIZE] == 0 } {
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set WORKAREASIZE 0x2800
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}
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source [find target/stm32_stlink.cfg]
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# Flash base address is known by driver. Flash size will be probed.
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#
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# Please note that the larger stm32lx targets (256Kb and 384Kb) uses dual
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# bank flash. For such targets use target/stm32lx_dual_bank.cfg.
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#
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# Some samples of ST's stm32lx chips are known to have incorrect flash size
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# values programmed in their FLASH_SIZE register. The driver will warn
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# for strange values. It is possible to override the flash size probe by
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# defining the correct size here. Notice though that it is the size of
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# the flash bank
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#
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# flash bank stm32lx <base> <size> 0 0 <target#> <variant>
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set _FLASHNAME $_CHIPNAME.flash
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flash bank $_FLASHNAME stm32lx 0 0 0 0 $_TARGETNAME
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proc stm32l_enable_HSI {} {
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# Enable HSI as clock source
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echo "STM32L: Enabling HSI"
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# Set HSION in RCC_CR
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mww 0x40023800 0x00000101
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# Set HSI as SYSCLK
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mww 0x40023808 0x00000001
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}
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$_TARGETNAME configure -event reset-init {
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stm32l_enable_HSI
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}
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