Need Information of STM32 MCU evaluation boards with more than 132 GPIO pins available for system development.

[VSali.18]

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

[Tesla DeLorean]

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.

[VSali.18]

Thank you.

[S.Ma]

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...

[VSali.18]

Thank you.