STM32F429的芯片有两路can接口、四路串口、内部以太网以及内部dsp处理器等硬件，硬件的丰富程度可见一斑，并且主频达到180MHZ，虽然比A8-A9架构的ARM芯片仍是差一大截，可是在工业控制上的应用仍是比较多的。c++
在程序编写方面STM32F4系列无论在MDK仍是库函数都有挺大改动，刚着手调试，将过程记录下来，方便之后积累经验，也让同行碰到相似问题的时候，能尽快找到方法。架构
首先我是用keil 来开发STM32F4系列代码的，该芯片比较新，采用keil MDK 5.11含有STM32F429芯片（4.72应该也有，可是我没验证过）；app
第2、MDK会自动检测山寨版本J-link固件，上次在客户那也出现这种状况，郁闷坏了。。其实这个问题比较简单，只要把之前能够用的keil下ARM/Segger/下的JL2CM3.dll，JLinkARM.dll，放到5.11下一样目录下便可。dom
第3、断言报错，assert_param 模块没有定义，在options里面的c/c++中加入USE_STDPERIPH_DRIVER，便可。函数
今天就到这里了，明天继续。spa
Core: debug
ARM 32-bit Cortex™-M4 CPU with FPU, Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution from Flash memory, frequency up to 180 MHz, MPU, 225 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1), and DSP instructions Memories •Up to 2 MB of Flash memory organized into two banks allowing read-while-write •Up to 256+4 KB of SRAM including 64-KB of CCM (core coupled memory) data RAM • Flexible external memory controller with up to 32-bit data bus: SRAM,PSRAM,SDRAM, Compact Flash/NOR/NAND memories LCD parallel interface •8080/6800 modes LCD-TFT controller up to SVGA resolution with dedicated Chrom-ART Accelerator™ for enhanced graphic content creation (DMA2D) Clock, reset and supply management •1.8 V to 3.6 V application supply and I/Os •POR, PDR, PVD and BOR •4-to-26 MHz crystal oscillator •Internal 16 MHz factory-trimmed RC (1% accuracy) •32 kHz oscillator for RTC with calibration •Internal 32 kHz RC with calibration •Sleep, Stop and Standby modes •VBATsupply for RTC, 20×32 bit backup registers + optional 4 KB backup SRAM 3×12-bit, 2.4 MSPS ADC: up to 24 channels and 7.2 MSPS in triple interleaved mode 2×12-bit D/A converters General-purpose DMA: 16-stream DMA controller with FIFOs and burst support Up to 17 timers: up to twelve 16-bit and two 32-bit timers up to 180 MHz, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input Debug mode •Serial wire debug (SWD)& JTAG interfaces •Cortex-M4 Embedded Trace Macrocell™ Up to 168 I/O ports with interrupt capability •Up to 164 fast I/Os up to 90 MHz •Up to 166 5 V -tolerant I/Os Mini-STM32F4x9IGT6 开发板用户手册 V1.0 www.elechome.com Page 8 / 165 Up to 21 communication interfaces •Up to 3 × I2C interfaces (SMBus/PMBus) •Up to 4 USARTs/4 UARTs (11.25 Mbit/s, ISO7816 interface, LIN, IrDA, modem control) •Up to 6 SPIs (45 Mbits/s), 2 with muxed full-duplex I2S for audio class accuracy via internal audio PLL or external clock •1 x SAI (serial audio interface) •2 × CAN (2.0B Active) and SDIO interface Advanced connectivity •USB 2.0 full-speed device/host/OTG controller with on-chip PHY • USB 2.0 high-speed/full-speed device/host/OTG controller with dedicated DMA, on-chip full-speed PHY and ULPI •10/100 Ethernet MAC with dedicated DMA: supports IEEE 1588v2 hardware, MII/RMII 8- to 14-bit parallel camera interface up to 54 MBs/s Cryptographic acceleration: hardware acceleration for AES 128, 192, 256, Triple DES, HASH (MD5, SHA-1, SHA-2), and HMAC(Only STM32F439) True random number generator CRC calculation unit 96-bit unique ID RTC: subsecond accuracy, hardware calendar