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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 14:15:23 +02:00 committed by GitHub
parent 6e46c7ad98
commit c2fa163322
1 changed files with 1 additions and 1 deletions
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targets/TARGET_NXP/TARGET_LPC176X/device/TOOLCHAIN_GCC_ARM/TARGET_XBED_LPC1768/XBED_LPC1768.ld
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@ -4,7 +4,7 @@
MEMORY
{
FLASH (rx) : ORIGIN = 0x00002000, LENGTH = 504K
RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = (32K - 0xC8)
RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = (32K - 0xC8 - 32) /* topmost 32 bytes used by IAP functions */
USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K