Why is the Mailbox Client HAL API unavailable for Agilex™ 5 FPGA devices? - Why is the Mailbox Client HAL API unavailable for Agilex™ 5 FPGA devices? Description In Quartus® Prime Pro Edition Software version 24.1, you might observe that the HAL Application Programming Interface (API) drivers of Mailbox Client IP are unavailable in the BSP for Nios® V designs targeting all Agilex™ 5 FPGA family devices. Other SDM-based devices are not affected. Resolution To work around this problem in the Quartus® Prime Pro Edition Software version 24.1, follow these steps: Start a Nios® V processor system with Mailbox Client IP in Quartus® Prime Pro Edition Software version 24.1. Generate the BSP, you might see that the Driver Name and Driver Version for the Mailbox Client IP are none. Navigate to the <BSP project folder>/drivers . Separately navigate to <Quartus Prime directory>/24.1/ip/altera/pgm/altera_s10_mailbox_client/HAL. Observe that both folder directories are the same – inc and src . Copy the contents of Quartus® Prime HAL folders into the BSP drivers folders, respectively. Navigate to <Quartus Prime directory>/24.1/ip/altera/pgm/altera_s10_mailbox_client/inc. Copy altera_s10_mailbox_client_regs.h into the BSP drivers/inc folder. Verify the content of the BSP inc folder is as below. Verify the content of the BSP src folder is as below. Modify the target_sources in BSP CMakeLists.txt . Add the C files in the PRIVATE column. drivers/src/altera_s10_mailbox_client.c drivers/src/altera_s10_mailbox_client_flash.c drivers/src/altera_s10_mailbox_client_flash_rsu.c drivers/src/altera_s10_mailbox_client_rsu.c drivers/src/librsu.c drivers/src/librsu_cb.c drivers/src/librsu_cfg.c drivers/src/librsu_ll_qspi.c drivers/src/librsu_misc.c drivers/src/rsu_client.c … Add the header files in the PUBLIC column. drivers/inc/altera_s10_mailbox_client.h drivers/inc/altera_s10_mailbox_client_flash.h drivers/inc/altera_s10_mailbox_client_flash_rsu.h drivers/inc/altera_s10_mailbox_client_regs.h drivers/inc/altera_s10_mailbox_client_rsu.h drivers/inc/librsu.h drivers/inc/librsu_cb.h drivers/inc/librsu_cfg.h drivers/inc/librsu_ll.h drivers/inc/librsu_misc.h drivers/inc/rsu_client.h … Modify the alt_sys_init.c in the following sections. Device headers. #include "altera_s10_mailbox_client.h" Allocate the device storage. ALTERA_S10_MAILBOX_CLIENT_INSTANCE ( MAILBOX_CLIENT, mailbox_client); Initialize non-interrupt controller device. ALTERA_S10_MAILBOX_CLIENT_INIT ( MAILBOX_CLIENT, mailbox_client); Proceed to compile the Software project. Additional Information This problem is fixed in Quartus® Prime Pro Edition Software version 24.3. Custom Fields values: ['novalue'] Troubleshooting 16023852543 False ['Avalon Mailbox IP'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 24.3 24.1 ['Agilex™ 5 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']