SPRUJE4D August 2024 – June 2025 F29H850TU , F29H859TU-Q1
By default, the ROM code configures the GPIO4 pin as the ERRORSTS pin. The ERRORSTS (GPIO4) pin is controlled by the Error Signaling Module (ESM) and is driven high by default (no error). This high state can cause a board issue if the GPIO4 pin is used to drive critical system functions. For example, if GPIO4 is used for the EPWM3_A function, a high-power FET can be turned on inadvertently and cause damage to the board. See the F29H85x and F29P58x Real-Time MCUs Silicon Errata for more information on this issue and possible workarounds.