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stm32f4_module [2016/08/03 17:32] – psykhazestm32f4_module [2016/08/03 17:48] (current) – [Features] psykhaze
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 ===== Introduction ===== ===== Introduction =====
  
-Main features of the STM32F4 based MBHP_CORE_STM32F4 module:+==== Features ====
  
-  * 1MB Flash and 192k RAM (significantly more than previous core modules) +  * **1MB Flash and 192k RAM ** 
-  * The STM32F4 evaluation board is available for 15 EUR at Mouser, 17 EUR at Watterott (Germany), 11 GBP at Farnell (GB) - and meanwhile even at Amazon! +  * **Easily available** for private persons in small quantities and no SMD soldering skills required
-  * It will be attached on the MBHP_CORE_STM32F4 PCB, but can also be used standalone for mini applications which only require USB MIDI and a small number of IOs or the Audio DAC. +
-  * 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   * 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) +  * **Increased performance** compared to STM32F1xx and LPC17xx because of the higher frequency (168 MHz) 
-  * the enhanced instruction set with DSP operations makes Cortex-M4 very interesting for audio applications (e.g. Synths and Fx) +  * **Enhanced instruction set** with DSP operations makes Cortex-M4 very interesting for audio applications (e.g. Synths and Fx) 
-  * MIOS32 applications are typically running more than 2..3 times faster than on STM32F103RE @72 MHz, and ca. 50% faster than on a LPC1769 @120 MHz +  * 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 +  * 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 (see also this forum article) +  * 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. +  * **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 +  * 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 +  * **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. +  * 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 +  * **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 
-  * Supported by a free available Realtime Operating System: FreeRTOS +  * **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 +  * **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+  * **Fast upload of application code via USB MIDI** (ca. 50kb/s) - thanks to the MIOS32 Bootloader
  
 ===== Known Issues ===== ===== 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. +  * **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.+  * **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.   * 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.+  * 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 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.+  * **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 =====+===== Parts List / Schematic=====
  
 See [[stm32f4_core_board_parts_list|Core32 Parts List]] 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 ===== ===== Inputs/Outputs Ports =====
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 ===== Buy Places ===== ===== 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.1470245573.txt.gz · Last modified: 2016/08/03 17:32 by psykhaze