static const char hex[] = "0123456789abcdef";
-// configured for STM32F100RB
-static const char* const c_memory_map =
- "<?xml version=\"1.0\"?>"
- "<!DOCTYPE memory-map PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
- " \"http://sourceware.org/gdb/gdb-memory-map.dtd\">"
- "<memory-map>"
- " <memory type=\"rom\" start=\"0x00000000\" length=\"0x20000\"/>" // code = sram or flash
- " <memory type=\"ram\" start=\"0x20000000\" length=\"0x2000\"/>" // sram 8k
- " <memory type=\"flash\" start=\"0x08000000\" length=\"0x20000\">" // flash 128k
- " <property name=\"blocksize\">0x400</property>" // 1k pages
- " </memory>"
- " <memory type=\"ram\" start=\"0x40000000\" length=\"0x1fffffff\"/>" // peripheral regs
- " <memory type=\"ram\" start=\"0xe0000000\" length=\"0x1fffffff\"/>" // cortex regs
- "</memory-map>";
+static const char* current_memory_map = NULL;
+
+struct chip_params {
+ uint32_t chip_id;
+ char* description;
+ uint32_t flash_base, flash_size, flash_pagesize;
+ uint32_t bootrom_base, bootrom_size;
+ uint32_t sram_base, sram_size;
+} const devices[] = {
+ { 0x10016420, "STM32F100 on Discovery",
+ 0x08000000, 128 * 1024, 1024,
+ 0x1ffff000, 2 * 1024,
+ 0x20000000, 8 * 1024},
+ { 0x10016412, "Low-density device",
+ 0x08000000, 32 * 1024, 1024,
+ 0x1ffff000, 2 * 1024,
+ 0x20000000, 4 * 1024},
+ { 0x10016410, "Medium-density device",
+ 0x08000000, 128 * 1024, 1024,
+ 0x1ffff000, 2 * 1024,
+ 0x20000000, 8 * 1024},
+ { 0x10016414, "High-density device",
+ 0x08000000, 512 * 1024, 1024,
+ 0x1ffff000, 2 * 1024,
+ 0x20000000, 8 * 1024},
+ { 0x10016430, "XL-density device",
+ 0x08000000, 1024 * 1024, 2048,
+ 0x1fffe000, 6 * 1024,
+ 0x20000000, 8 * 1024},
+ { 0x10016418, "Connectivity line device",
+ 0x08000000, 256 * 1024, 2048,
+ 0x1fffb000, 18 * 1024,
+ 0x20000000, 8 * 1024},
+ { 0, }
+};
int serve(struct stlink* sl, int port);
+char* make_memory_map(const struct chip_params *params);
int main(int argc, char** argv) {
if(argc != 3) {
if(stlink_current_mode(sl) != STLINK_DEV_DEBUG_MODE)
stlink_enter_swd_mode(sl);
- stlink_core_id(sl);
- printf("Debugging ARM core %08x.\n", sl->core_id);
+ uint32_t chip_id;
+
+ stlink_read_mem32(sl, 0xE0042000, 4);
+ chip_id = sl->q_buf[0] | (sl->q_buf[1] << 8) | (sl->q_buf[2] << 16) |
+ (sl->q_buf[3] << 24);
+
+ printf("Chip ID is %08x.\n", chip_id);
+
+ const struct chip_params* params = NULL;
+
+ for(int i = 0; i < sizeof(devices) / sizeof(devices[0]); i++) {
+ if(devices[i].chip_id == chip_id) {
+ params = &devices[i];
+ break;
+ }
+ }
+
+ if(params == NULL) {
+ fprintf(stderr, "Cannot recognize the connected device!\n");
+ return 0;
+ }
+
+ printf("Device connected: %s\n", params->description);
+ printf("Device parameters: SRAM @%08x: %x, Flash @%08x: %x (pages of %x bytes), Boot ROM: @%08x, %x\n",
+ params->sram_base, params->sram_size,
+ params->flash_base, params->flash_size, params->flash_pagesize,
+ params->bootrom_base, params->bootrom_size);
+
+ current_memory_map = make_memory_map(params);
int port = atoi(argv[1]);
return 0;
}
+static const char* const memory_map_template =
+ "<?xml version=\"1.0\"?>"
+ "<!DOCTYPE memory-map PUBLIC \"+//IDN gnu.org//DTD GDB Memory Map V1.0//EN\""
+ " \"http://sourceware.org/gdb/gdb-memory-map.dtd\">"
+ "<memory-map>"
+ " <memory type=\"rom\" start=\"0x00000000\" length=\"0x%x\"/>" // code = sram, bootrom or flash; flash is bigger
+ " <memory type=\"ram\" start=\"0x%08x\" length=\"0x%x\"/>" // sram 8k
+ " <memory type=\"flash\" start=\"0x%08x\" length=\"0x%x\">"
+ " <property name=\"blocksize\">0x%x</property>"
+ " </memory>"
+ " <memory type=\"ram\" start=\"0x40000000\" length=\"0x1fffffff\"/>" // peripheral regs
+ " <memory type=\"ram\" start=\"0xe0000000\" length=\"0x1fffffff\"/>" // cortex regs
+ " <memory type=\"rom\" start=\"0x%08x\" length=\"0x%x\"/>" // bootrom
+ "</memory-map>";
+
+char* make_memory_map(const struct chip_params *params) {
+ /* This will be freed in serve() */
+ char* map = malloc(4096);
+ map[0] = '\0';
+
+ snprintf(map, 4096, memory_map_template,
+ params->flash_size,
+ params->sram_base, params->sram_size,
+ params->flash_base, params->flash_size, params->flash_pagesize,
+ params->bootrom_base, params->bootrom_size);
+
+ return map;
+}
+
#define CODE_BREAK_NUM 6
#define CODE_BREAK_LOW 0x01
const char* data = NULL;
if(!strcmp(type, "memory-map") && !strcmp(op, "read"))
- data = c_memory_map;
+ data = current_memory_map;
if(data) {
unsigned data_length = strlen(data);