ARM microcontrollers, by eliminating the need to design the printed board. The module is supplied with example software. The MMstr75xFR minimodule can be also used in didactic laboratories of informatics colleges and universities, and can be also used to build circuits realizing thesis projects.
Block Diagram Block Diagram Block Diagram A block diagram of MMstr75xFR minimodule is shown on the image below: Figure 1Block Diagram of MMstr75xFR Minimodule Minimodule can be ordered in different configurations with use of selector: MMstr75xFR – f – d Flash Memory size: 0 –...
RESET circuit RESET circuit The MMstr75xFR has a built-in voltage monitoring circuit built around the DS1818 integrated circuit. The circuit generates a RESET signal in case when the supply voltage value is lower than 3V. This takes place when the supply voltage is switched on or off, when the VCC voltage changes its value from 0 to 3.3 V.
Up circuit USB host recognize presence of device on the bus by sensing pull-up on D+ line. MMstr75xFR has built-in pull-up circuit, shown on drawing below. Figure 6 USB D+ Pull-Up circuit implementation Pull-up is by default turned off by R4 resistor. Active reset signal or low level on UDP_PUP (R5 mounted) line turns on pull-up, what is interpreted by USB host as connection of USB device.
The method of connecting the JTAG connector to the minimodule is shown in the drawing: Figure 7 JTAG connection on module JTAG programmer/debugger may be found on page: ARM cable I http://www.propox.com/products/t_122.html...
Guarantee Guarantee Guarantee The MMstr75xFR minimodule is covered by a six-month guarantee. All faults and defects not caused by the user will be removed at the Producer’s cost. Transportation costs are borne by the buyer. The Producer takes no responsibility for any damage and defects caused in the course of...
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