stm32f4_module
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stm32f4_module [2016/07/11 16:19] psykhaze created |
stm32f4_module [2016/08/03 17:48] (current) psykhaze [Features] |
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| ====== Core 32 STM32F4 ====== | ====== Core 32 STM32F4 ====== | ||
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| + | {{ :neonking:core_stm32f4.jpg?600 |}} | ||
| + | |||
| + | ===== 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/Linux/MacOS w/o spending money for an expensive ARM compiler | ||
| + | * **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, such as **UART, SPI, I2C, USB, CAN, Timers, ADC, DAC** | ||
| + | * 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, **CAN and USB can be used in parallel** | ||
| + | * **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 "virgin" device | ||
| + | * **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/noise ratio. The MBHP_AINSER64 and MBHP_AINSER8 module helps to overcome this by using an external 5V ADC. | ||
| + | * **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]] | ||
| + | |||
| + | * {{http://ucapps.de/mbhp/mbhp_core_stm32f4.pdf|Core32 Schematic}} <sup>UCapps</sup> | ||
| + | |||
| + | ===== Inputs/Outputs Ports ===== | ||
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| + | {{ :neonking:core32-architecture.jpg?800 |}} | ||
| + | |||
| + | ===== Buy Places ===== | ||
| + | |||
| + | * [[http://www.digikey.com/product-detail/en/stmicroelectronics/STM32F407G-DISC1/497-16287-ND/5824404|Digikey]] | ||
| + | * [[http://www.mouser.fr/ProductDetail/STMicroelectronics/STM32F4DISCOVERY/?qs=J2qbEwLrpCGdWLY96ibNeQ%3d%3d|Mouser]] | ||
| + | * [[http://export.farnell.com/stmicroelectronics/stm32f407g-disc1/dev-board-foundation-line-mcu/dp/2506840?selectedCategoryId=&exaMfpn=true&categoryId=&searchRef=SearchLookAhead&searchView=table&iscrfnonsku=false|Farnell]] | ||
| + | * [[https://www.amazon.com/STM32F4DISCOVERY-ST-STM32F407-Evaluation-Development/dp/B00CW9AKDY|Amazon]] | ||
| + | * [[http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313.TR2.TRC0.A0.H0.XSTM32F407.TRS0&_nkw=STM32F407&_sacat=0|Ebay]] | ||
| + | * [[http://www.watterott.com/de/STM32F4Discovery|Watterot DE]] | ||
stm32f4_module.1468253991.txt.gz · Last modified: 2016/07/11 16:19 by psykhaze
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