65 lines
1.2 KiB
INI
65 lines
1.2 KiB
INI
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# This is an SAM4E-EK board with a single SAM4E16 chip.
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# http://www.atmel.com/tools/sam4e-ek.aspx
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#
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# Tested with OpenOCD 0.8.0
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source [find interface/jlink.cfg]
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# chip name
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set CHIPNAME SAM4E16E
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# Versions of OpenOCD after have atmel_sam4e_ek.cfg
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# source [find board/atmel_sam4e_ek.cfg]
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source [find target/at91sam4sXX.cfg]
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# SAM4E chip has only NRST signal
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# SAM4E-EK board has only nSRST. nTRST is connected to +3V3 by pull-up.
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reset_config srst_only
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$_TARGETNAME configure -event gdb-attach {
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reset init
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}
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$_TARGETNAME configure -event reset-init {
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sam4e_pll_init
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}
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$_TARGETNAME configure -event reset-start {
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adapter_khz 500
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}
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$_TARGETNAME configure -event reset-end {
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adapter_khz 10000
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flash probe 0
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}
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proc sam4e_pll_init {} {
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# Same sequence from ASF/pmc.c
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mww 0x400E0A00 0x04000500 ;# FLASH 6 WS
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# Initialize main oscillator
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mww 0x400E0420 0x00373E09 ;# CKGR_MOR
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sleep 10
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# Switch to 3-20MHz Xtal oscillator
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mww 0x400E0420 0x01373E09 ;# CKGR_MOR
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sleep 10
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# Disable PLL first
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mww 0x400E0428 0x20000000 ;# CKGR_PLLAR
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sleep 10
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# PLLA 240 MHz
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mww 0x400E0428 0x20133F01 ;# CKGR_PLLAR
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sleep 10
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# PRES CLK_2, MAINCK -> MCK = 120 MHz
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mww 0x400E0430 0x00000011 ;# PMC_MCKR
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sleep 10
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# PRES CLK_2, PLLACK
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mww 0x400E0430 0x00000012 ;# PMC_MCKR
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sleep 10
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}
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