stm32f4_module
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stm32f4_module [2016/08/03 16:58] – ↷ Page name changed from stm32_module to stm32f4_module psykhaze | stm32f4_module [2016/08/03 17:48] (current) – [Features] psykhaze | ||
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====== Core 32 STM32F4 ====== | ====== Core 32 STM32F4 ====== | ||
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+ | {{ : | ||
+ | |||
+ | ===== Introduction ===== | ||
+ | |||
+ | ==== Features ==== | ||
+ | |||
+ | * **1MB Flash and 192k RAM ** | ||
+ | * **Easily available** for private persons in small quantities and no SMD soldering skills required | ||
+ | * ARM Cortex-M4 CPU is widely supported by the GNU toolchain, accordingly source code can be compiled under Windows/ | ||
+ | * **Increased performance** compared to STM32F1xx and LPC17xx because of the higher frequency (168 MHz) | ||
+ | * **Enhanced instruction set** with DSP operations makes Cortex-M4 very interesting for audio applications (e.g. Synths and Fx) | ||
+ | * MIOS32 applications running more than 2..3 times faster than on STM32F103RE @72 MHz, and ca. 50% faster than on a LPC1769 @120 MHz | ||
+ | * Very useful integrated peripherals for MIDI and Synthesizer applications, | ||
+ | * The USB OTG (Micro-USB) socket supports **MIDI Host**, which means that it's possible to connect a USB MIDI Keyboard or Synth | ||
+ | * **The on-board Audio DAC predestinates this module for synthesizer projects** - it could even be used standalone without the MBHP_CORE_STM32F4 breakout board for this purpose. | ||
+ | * in distance to STM32F103RE, | ||
+ | * **It's easy to interface external components like SD Cards and MBHP_ETH** | ||
+ | * STM32F4xx is supplied at 3V, but **5V tolerant inputs allow to access all existing MBHP modules without additional hardware**. | ||
+ | * **Performance boost by using the DMA** for background operations, such as scanning DIN/DOUT modules, analog inputs but also I2S transfers (Audio Output) w/o loading the CPU | ||
+ | * **Realtime Operating System: FreeRTOS** | ||
+ | * **no external flash programmer required**, ST-LINK/V2 is part of the STM32F4DISCOVERY board to program the MIOS32 bootloader into a " | ||
+ | * **Fast upload of application code via USB MIDI** (ca. 50kb/s) - thanks to the MIOS32 Bootloader | ||
+ | |||
+ | ===== Known Issues ===== | ||
+ | |||
+ | * **ADCs cannot be supplied at 5V**, 3.3V is the limit, and the STM32F4DISCOVERY board uses an even lower voltage (3V). This decreases the signal/ | ||
+ | * **Pin mapping suboptimal in some cases**. E.g., the outputs of the integrated DAC (not the on-board Audio-DAC) overlay SPI1 pins. However, one DAC channel has been freed up with the small drawback that SPI1 can't be used in slave mode. | ||
+ | * The IO pins of the SDIO peripheral (high speed SD Card access) conflicts with the on-board Audio DAC, so that it can't be used. | ||
+ | * Although the chip contains 6 UARTs, **only 4 RX and TX pins could be found for MIDI IN/OUT**. IN3/OUT3 even have to use two different UARTs. | ||
+ | * No on-board Ethernet PHY | ||
+ | * **No PHY for the second USB peripheral** - would be nice to have, e.g. to support USB MIDI device and host (e.g. for the connection of a USB MIDI Keyboard), USB Memory Sticks or even a USB harddisk in parallel. | ||
+ | |||
+ | ===== Parts List / Schematic===== | ||
+ | |||
+ | See [[stm32f4_core_board_parts_list|Core32 Parts List]] | ||
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+ | * {{http:// | ||
+ | |||
+ | ===== Inputs/ | ||
+ | |||
+ | {{ : | ||
+ | |||
+ | ===== Buy Places ===== | ||
+ | |||
+ | * [[http:// | ||
+ | * [[http:// | ||
+ | * [[http:// | ||
+ | * [[https:// | ||
+ | * [[http:// | ||
+ | * [[http:// |
stm32f4_module.1470243494.txt.gz · Last modified: 2016/08/03 16:58 by psykhaze