意法STM32系列芯片解密，STM32芯片破解

STM32系列32位微控制器，基于ARM? Cortex??M處理器。它能支持32位廣泛的應(yīng)用，支持包括高性能、實時功能、數(shù)字信號處理，和低功耗、低電壓操作，同時擁有一個完全集成和易用的開發(fā)。

以STM32為應(yīng)用的產(chǎn)品線非常廣泛，是由于其基于工業(yè)標(biāo)準(zhǔn)的內(nèi)核、有大量的工具和軟件作支持，使該系列芯片成為眾多產(chǎn)品的理想選擇，不管是小終端，還是一個大型的平臺。

基于上述優(yōu)勢所在，STM32系列芯片也有很多破解需求，板朗科技專業(yè)破解高難度芯片，對STM系列芯片有深入的研究，以下是關(guān)于STM32系列芯片解密介紹

STM32芯片實物圖

STM32芯片官方參考文檔

STM32系統(tǒng)結(jié)構(gòu)

系統(tǒng)的主要部分包括：

四個驅(qū)動單元：

- Cortex-M3 內(nèi)核指令總線 (I-bus)

數(shù)據(jù)總線 (D-bus)

以及系統(tǒng)總線 (S-bus)

- GP-DMA(通用DMA)

三個被動單元：

- 內(nèi)部 SRAM

- 內(nèi)部閃存存儲器

- AHB 到 APB 橋 (AHB2APBx)該橋用來連接所有的APB 設(shè)備這些通過一個多級的AHB 總線構(gòu)架相互連接

ICode 總線

該總線將 Cortex-M3 內(nèi)核的指令總線與閃存存儲器指令接口相連接。指令預(yù)取操作在該總線上進(jìn)行。

DCode 總線

該總線將Cortex-M3內(nèi)核的DCode總線與閃存存儲器的數(shù)據(jù)接口相連接(常量加載和調(diào)試訪問)。

系統(tǒng)總線

該總線將 Cortex-M3 內(nèi)核的系統(tǒng)總線（外設(shè)總線）連接到一個總線矩陣，總線矩陣協(xié)調(diào)著內(nèi)核和DMA 間的訪問。

DMA 總線

該總線將DMA的AHB主機接口連接到一個總線矩陣，總線矩陣協(xié)調(diào)著CPU的DCode和DMA到SRAM、閃存和外設(shè)的訪問。

總線矩陣

此總線矩陣協(xié)調(diào)內(nèi)核系統(tǒng)總線和DMA主控總線之間的訪問仲裁。此仲裁利用輪換算法。此總線矩陣由三個驅(qū)動部件(CPU的DCode、系統(tǒng)總線和DMA總線)和三個被動部件(閃存存儲器接口、SRAM和AHB2APB橋)構(gòu)成。

為了允許DMA 訪問，AHB 外設(shè)通過一個總線矩陣連接到系統(tǒng)總線。

AHB/APB 橋 (APB)

兩個 AHB/APB 橋在AHB 和兩個APB 總線之間提供完全同步的連接。APB1 被限制在36 MHz， APB2 工作在全速狀態(tài) (根據(jù)設(shè)備的不同可以達(dá)到72 MHz)。

存儲器結(jié)構(gòu)

程序存儲器、數(shù)據(jù)存儲器、寄存器和 I/O 端口被組織到一個4G 字節(jié)的線性地址空間。

這些字節(jié)在存儲器小端格式編碼，在小端格式中，一個字中最低地址的字節(jié)為該字的最低位字節(jié)，最高地址的字節(jié)為最高位字節(jié)。

可尋址的存儲器空間被分為8 個512MB 的主塊。

所有未分配給片上存儲器或外設(shè)的存儲區(qū)域被視為是保留的。

存儲器映射

邊界地址 外設(shè) 總線

0x4002 2400 - 0x4002 3FFF 保留

AHB

0x4002 2000 - 0x4002 23FF 閃存存儲器接口

0x4002 1400 - 0x4002 1FFF 保留

0x4002 1000 - 0x4002 13FF 復(fù)位和時鐘控制RCC

0x4002 0400 - 0x4002 0FFF 保留

0x4002 0000 - 0x4002 03FF DMA

0x4001 3C00 - 0x4001 3FFF 保留

APB2

0x4001 3800 - 0x4001 3BFF USART1

0x4001 3400 - 0x4001 37FF 保留

0x4001 3000 - 0x4001 33FF SPI 1

0x4001 2C00 - 0x4001 2FFF TIM1 定時器

0x4001 2800 - 0x4001 2BFF ADC2

0x4001 2400 - 0x4001 27FF ADC1

0x4001 2000 - 0x4001 1FFF 保留

0x4001 1800 - 0x4001 1BFF GPIO 端口 E

0x4001 1400 - 0x4001 17FF GPIO 端口 D

0x4001 1000 - 0x4001 13FF GPIO 端口 C

0x4001 0C00 - 0x4001 0FFF GPIO 端口 B

0x4001 0800 - 0x4001 0BFF GPIO 端口 A

0x4001 0400 - 0x4001 07FF EXIT

0x4001 0000 - 0x4001 03FF AFIO

0x4000 8000 - 0x4000 77FF 保留

APB1

0x4000 7000 - 0x4000 73FF 電源控制（PWR）

0x4000 6C00 - 0x4000 6FFF 備份寄存器（BKP）

0x4000 6800 - 0x4000 6BFF 保留

0x4000 6400 - 0x4000 67FF bxCAN

0x4000 6000 - 0x4000 63FF 共享的USB/CAN SRAM

512 字節(jié)

0x4000 5C00 - 0x4000 5FFF USB 寄存器

0x4000 5800 - 0x4000 5BFF I2C2

0x4000 5400 - 0x4000 57FF I2C1

0x4000 5000 - 0x4000 4FFF 保留

0x4000 4800 - 0x4000 4BFF USART3

0x4000 4400 - 0x4000 47FF USART2

0x4000 4000 - 0x4000 3FFF 保留

0x4000 3800 - 0x4000 3BFF SPI2

0x4000 3400 - 0x4000 37FF 保留

0x4000 3000 - 0x4000 33FF 獨立的看門狗（IWDG）

0x4000 2C00 - 0x4000 2FFF 窗口看門狗（WWDG）

0x4000 2800 - 0x4000 2BFF RTC

0x4000 2400 - 0x4000 0FFF 保留

0x4000 0800 - 0x4000 0BFF TIM4 定時器

0x4000 0400 - 0x4000 07FF TIM3 定時器

0x4000 0000 - 0x4000 03FF TIM2 定時器

嵌入式SRAM

STM32F10x 內(nèi)置20K 字節(jié)的靜態(tài)SRAM，可以以字節(jié)、半字（16 位）、字(32 位)的方式訪問，SRAM 的起始地址為0x2000 0000。

位段

TM32F10x 里，外設(shè)寄存器和SRAM 都被映射到一個位段區(qū)里，這允許執(zhí)行單一的位段的寫和讀操作。

下面的映射公式給出了別名區(qū)中的每個字是如何對應(yīng)位帶區(qū)的相應(yīng)位的：

bit_word_addr = bit_band_base + (byte_offset x 32) + (bit_number × 4)

其中：

− bit_word_addr 是別名存儲器區(qū)中字的地址，它映射到某個目標(biāo)位。

− bit_band_base 是別名區(qū)的起始地址。

− byte_offset 是包含目標(biāo)位的字節(jié)在位段里的序號

− bit_number 是目標(biāo)位所在位置（0-31）

下面的例子說明如何映射別名區(qū)中SRAM 地址為0x20000300 的字節(jié)中的位2：

0x22006008 = 0x22000000 + (0x300*32) + (2*4).

對0x22006008 地址的寫操作和對SRAM 中地址0x20000300 字節(jié)的位2 執(zhí)行讀-改-寫操作有著相同的效果。

讀0x22006008 地址返回SRAM 中地址0x20000300 字節(jié)的位2 的值(0x01 or 0x00)。

STM32解密芯片種類

STM32F030C6

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STM32L151C6-A

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STM32L151CB-A

STM32L151CC

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STM32L151R6-A

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STM32L152R8-A

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STM32L152VB-A

STM32L152VC

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STM32L471QG

STM32L471RE

STM32L471RG

STM32L471VE

STM32L471VG

STM32L471ZE

STM32L471ZG

STM32L475RC

STM32L475RE

STM32L475RG

STM32L475VC

STM32L475VE

STM32L475VG

STM32L476JE

STM32L476JG

STM32L476ME

STM32L476MG

STM32L476QE

STM32L476QG

STM32L476RC

STM32L476RE

STM32L476RG

STM32L476VC

STM32L476VE

STM32L476VG

STM32L476ZE

STM32L476ZG

STM32L486JG

STM32L486QG

STM32L486RG

STM32L486VG

STM32L486ZG

STM32H743BI

STM32H743II

STM32H743VI

STM32H743XI

STM32H743ZI

STM32L100C6

STM32L100R8

STM32L100RB

STM32L151C6

STM32L151C8

STM32L151CB

STM32L151R6

STM32L151R8

STM32L151RB

STM32L151RC-A

STM32L151V8

STM32L151VB

STM32L151VC-A

STM32L152C6

STM32L152C8

STM32L152CB

STM32L152R6

STM32L152R8

STM32L152RB

STM32L152RC-A

STM32L152V8

STM32L152VB

STM32L152VC-A

STM32L162RC-A

STM32L162VC-A

STM32L162VD-X

STM32F413MG

STM32F413MH

STM32F723IE

STM32F723ZE

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