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Ebay HY-MiniSTM32V LCD initialization and Adafruit GFX Library port to STM32F103

October 27, 2017 in ARM, C, C++, Code Snippets, DIY, Hardware, Microcontroller, Programming, STM32, Tutorial by admin

A while ago I’ve bought a HY-MiniSTM32V board from Ebay. There are two boards – a main board with the STM32F103VCT6 microcontroller and a 240×320 pixel LCD board with resistive touch screen. The LCD itself is connected to the FSMC (Flexible Static Memory Controller) and can be mapped as a memory device.

The FSMC is an embedded external memory controller that allows the STM32F10xxx microcontroller to interface with a wide range of memories, including SRAM, NOR Flash, NAND Flash and LCD modules. The suitable connection to LCD is as a NOR Flash / SRAM device.

From AN2790 – TFT LCD interfacing with the high-density STM32F10xxx FSMC:

To control a NOR Flash/SRAM memory, the FSMC provides the following features:

  • Select the bank to be used to map the NOR Flash/SRAM memory: there are four independent banks that can be used to interface with NOR Flash/SRAM/PSRAM memories, and each bank is selected using a separate Chip Select pin.
  • Enable or disable the address/data multiplexing feature.
  • Select the memory type to be used: NOR Flash/SRAM/PSRAM.
  • Define the external memory databus width: 8/16 bits.
  • Enable or disable the burst access mode for NOR Flash synchronous memories.
  • Configure the use of the wait signal: enable/disable, polarity setting and timing configuration.
  • Enable or disable the extended mode: this mode is used to access the memory with different timing configurations for read and write operations.

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by admin

Small and cheap STM32F103 boards from aliexpress

May 3, 2016 in ARM, Hardware, Microcontroller, STM32, Tips & Tricks by admin

arm_cortex_logoRecently I was looking for some cheap boards which would allow me to play with the STM32F103 microcontroller and I’ve found that Aliexpress has couple of versions of them sold quite cheap by various sellers, with a very affordable price tag. There are various incarnations of these boards, and with difference in the price range, so I went with these two in the end:

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