From 4d0ab32f13438f7f911062088d9bdfb786a3dfce Mon Sep 17 00:00:00 2001
From: Trygve Laugstøl <trygvis@inamo.no>
Date: Sat, 30 May 2015 12:12:36 +0200
Subject: notes

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 nrf51.md | 46 ++++++++++++++++++++++++++++++++++++++++++++++
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+# NRF51 Firmware Development Notes
+
+# Chip Details
+
+## Address Map
+
+    0xE000 0000 Private Peripherals Bus
+                ...
+                ...
+    0x5000 0000 ABH Peripherals
+                ...
+    0x4000 0000 APB Peripherals
+                ...
+    0x2000 0000 Data RAM
+                ...
+    0x1000 1000 UICR
+                ...
+    0x1000 0000 FICR
+                ...
+    0x0000 0000 Code FLASH
+
+### Flash and RAM Areas
+
+* nRF51822-xxAA flash: 0x0000 0000 => 0x0002 0000, RAM: 0x2000 0000 => 0x2000 4000
+* nRF51822-xxAB flash: 0x0000 0000 => 0x0001 0000, RAM: 0x2000 0000 => 0x2000 4000
+* nRF51822-xxAC flash: 0x0000 0000 => 0x0002 0000, RAM: 0x2000 0000 => 0x2000 8000
+
+# Debugging
+
+    screen /dev/ttyACM0 115200,-ixon,-ixoff
+
+## Documentation
+
+### Nordic
+
+* [inRF51822 Product Specification](http://www.nordicsemi.com/eng/nordic/Products/nRF51822/nRF51822-PS/20339)
+* [inRF51822 Reference Manual](http://www.nordicsemi.com/eng/nordic/Products/nRF51822/nRF51-RM/20337)
+
+### Generic ARM
+
+* [Cortex™-M0 Devices Generic User Guide](http://infocenter.arm.com/help/topic/com.arm.doc.dui0497a/DUI0497A_cortex_m0_r0p0_generic_ug.pdf)
+* [Cortex™-M0 Technical Reference Manual](http://infocenter.arm.com/help/topic/com.arm.doc.ddi0432c/DDI0432C_cortex_m0_r0p0_trm.pdf)
+
+* nRF51822-xxAA flash: 256 kB, ram: 16kB
+* nRF51822-xxAB flash: 128 kB, ram: 16kB
+* nRF51822-xxAC flash: 256 kB, ram: 32kB
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