Need Information of STM32 MCU evaluation boards with more than 132 GPIO pins available for system development.
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‎2019-06-21 04:42 AM
My questions are,
1. Am I using the right kit?
2. Please confirm if it has 140 GPIOs available as spare output pins.
3. Please suggest any alternative if better options available.
4. Where can I get development software and hardware debuggers?
Thank you in advance.
--
Regards,
Vijay
Deatils I got from online sites:
ST Microelectronics:
Evaluation Kit for STM32F207IGT6 Microcontroller.
ARM 32-bit Cortex-M3 CPU
1MB Flash, 128+4 Kbytes SRAM
Processor speed: 120MHz
140 GPIOs upto 60MHz
DevKit1207 Evaluation Kit is a complete development platform for STM32F207IGT6
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‎2019-06-21 05:33 AM
Most boards don't have that many pins free. You'd likely want to look for a breakout board for a 208-pin device.
Might also seriously consider adding an IO Expander (or two), or and FPGA/CPLD type arrangement, or buffers/latches off the external bus.
Keil and IAR work well, and there are several amateurish offerings if you're not invested.
The ST-LINK V3 is a pretty good debug pod, the V2 and Segger ones also very usable.
Up vote any posts that you find helpful, it shows what's working..
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‎2019-06-21 07:01 AM
Maybe check onbga packages for stm32l4r like bga169.
To have good solution, you need to add 6 gpios to your minimum, swd for debug, and both oscillators. They can be used as gpio with constrains...
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‎2019-06-27 04:13 AM
Thank you.
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‎2019-06-27 04:13 AM
Thank you.
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