From 71a3a7f2b134115c9851ff38314a74c4a2f9c5d3 Mon Sep 17 00:00:00 2001 From: Karl Palsson Date: Thu, 7 Jun 2012 15:41:42 +0000 Subject: Add Device Electronic Signature support. Working unique id support, but not 100% convinced that this is the "least surprise" path. ST's docs provide the bits from low to high, in 2xu16 and 2xu32. But to get it back as a "u96" the highest bits should be first? --- lib/stm32/f1/Makefile | 2 +- lib/stm32/f1/desig.c | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+), 1 deletion(-) create mode 100644 lib/stm32/f1/desig.c (limited to 'lib') diff --git a/lib/stm32/f1/Makefile b/lib/stm32/f1/Makefile index d598f84..40c109a 100644 --- a/lib/stm32/f1/Makefile +++ b/lib/stm32/f1/Makefile @@ -31,7 +31,7 @@ ARFLAGS = rcs OBJS = vector.o rcc.o gpio.o usart.o adc.o spi.o flash.o nvic.o \ rtc.o i2c.o dma.o systick.o exti.o scb.o ethernet.o \ usb_f103.o usb.o usb_control.o usb_standard.o can.o \ - timer.o usb_f107.o + timer.o usb_f107.o desig.o VPATH += ../../usb:../ diff --git a/lib/stm32/f1/desig.c b/lib/stm32/f1/desig.c new file mode 100644 index 0000000..7ae968e --- /dev/null +++ b/lib/stm32/f1/desig.c @@ -0,0 +1,37 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2012 Karl Palsson + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see . + */ + +#include + +u16 desig_get_flash_size(void) +{ + return DESIG_FLASH_SIZE; +} + +void desig_get_unique_id(u32 result[]) +{ + // Could also just return a pointer to the start? read it as they wish? + u16 bits15_0 = DESIG_UID_15_0; + u32 bits31_16 = DESIG_UID_31_16; + u32 bits63_32 = DESIG_UID_63_32; + u32 bits95_64 = DESIG_UID_95_64; + result[0] = bits95_64; + result[1] = bits63_32; + result[2] = bits31_16 << 16 | bits15_0; +} -- cgit v1.2.3