target/ast1060/ipc/user/system.json5

// Licensed under the Apache-2.0 license

// ASPEED AST1060 IPC test configuration
// ARM Cortex-M3 (soft-float ABI for QEMU compatibility) with 768KB SRAM
// NOTE: AST1060 does not support XIP - ROM code copies firmware from flash to RAM
// and executes from RAM starting at 0x00000000
//
// PMSAv7-Friendly Memory Layout:
// The system generator places app flash after kernel flash, and app RAM after
// kernel RAM. For PMSAv7 compatibility, regions must be at power-of-2 aligned
// addresses to avoid MPU subregion overlap with kernel RAM.
//
//   0x00000000 - 0x000004A0: Vector table + kernel annotations (1184 bytes)
//   0x000004A0 - 0x00020000: Kernel code (~126KB, ends at 128KB boundary)
//   0x00020000 - 0x00040000: Initiator app code (128KB, power-of-2 aligned)
//   0x00040000 - 0x00060000: Handler app code (128KB, power-of-2 aligned)
//   0x00060000 - 0x00080000: Kernel RAM (128KB, after all flash)
//   0x00080000 - 0x00090000: App RAM (64KB total)
//
// Total: 576KB, fits within AST1060's 768KB SRAM.
{
    arch: {
        type: "armv7m",
        vector_table_start_address: 0x00000000,
        vector_table_size_bytes: 1184,  // 0x4A0 (272 vectors + thread/stack annotations)
    },
    kernel: {
        flash_start_address: 0x000004A0,  // After vector table + annotations
        flash_size_bytes: 129888,         // ~126KB (ends at 0x00020000, power-of-2 boundary)
        ram_start_address: 0x00060000,    // After all flash regions (power-of-2 aligned)
        ram_size_bytes: 131072,           // 128KB
    },
    apps: [
        {
            name: "initiator",
            flash_size_bytes: 131072,     // 128KB for initiator app (power-of-2 aligned)
            ram_size_bytes: 32768,        // 32KB RAM for initiator
            process: {
                name: "initiator process",
                objects: [
                    {
                        name: "IPC",
                        type: "channel_initiator",
                        handler_app: "handler",
                        handler_object_name: "IPC",
                    }
                ],
                threads: [
                    {
                        name: "initiator thread",
                        stack_size_bytes: 2048,  // 2KB stack
                    },
                ],
            },
        },
        {
            name: "handler",
            flash_size_bytes: 131072,     // 128KB for handler app (power-of-2 aligned)
            ram_size_bytes: 32768,        // 32KB RAM for handler
            process: {
                name: "handler process",
                objects: [
                    {
                        name: "IPC",
                        type: "channel_handler",
                    },
                ],
                threads: [
                    {
                        name: "handler thread",
                        stack_size_bytes: 2048,  // 2KB stack
                    },
                ],
            },
        },
    ],
}