# Spansion FM4

[FM4 32-bit Arm Cortex-M4 Microcontroller (MCU) Families](http://www.spansion.com/Products/microcontrollers/32-bit-ARM-Core/fm4/Pages/overview_32fm4.aspx)

[SK-FM4-U120-9B560-MEM FM4 MCU Evaluation Board](https://www.infineon.com/cms/en/product/evaluation-boards/fm4-u120-9b560/)

CN3: JTAG
CMSIS-DAP Debug Access Port

UART programming:

[broken link](http://learn.spansion.com/mcu_software_download?r=/EnglishDownloads/EDG/binary/zip/product/micom/tools/downloads/flash/PCWFM3.zip)

![FM3/FM4 UART pins](Images/Spansion_FM4_UART_pins.png)

[OpenOCD FM4 - Japanese](http://jujurou.blog34.fc2.com/blog-entry-394.html)