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reserved topmost 32 bytes of RAM used by IAP functions 

NXP LPC176x/5x User Manual UM10360 Rev 4.1:
32.3.2.8 RAM used by IAP command handler
Flash programming commands use the top 32 bytes of on-chip RAM. The maximum stack 
usage in the user allocated stack space is 128 bytes and it grows downwards.
pull/4169/head
0x6d61726b 2017-04-30 14:13:05 +02:00 committed by GitHub
parent ae0ef24004
commit 131379aa0c
1 changed files with 2 additions and 2 deletions
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4
targets/TARGET_NXP/TARGET_LPC176X/device/TOOLCHAIN_ARM_MICRO/LPC1768.sct
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@ -6,8 +6,8 @@ LR_IROM1 0x00000000 0x80000 { ; load region size_region
.ANY (+RO)
}
; 8_byte_aligned(49 vect * 4 bytes) = 8_byte_aligned(0xC4) = 0xC8
; 32KB - 0xC8 = 0x7F38
RW_IRAM1 0x100000C8 0x7F38 {
; 32KB (RAM size) - 0xC8 (NIVT) - 32 (topmost 32 bytes used by IAP functions) = 0x7F18
RW_IRAM1 0x100000C8 0x7F18 {
.ANY (+RW +ZI)
}
RW_IRAM2 0x2007C000 0x4000 { ; RW data, USB RAM