}
void _stlink_usb_read_all_regs(stlink_t *sl, reg *regp) {
- DD(sl, "oops! read_all_regs not implemented for USB!\n");
+ struct stlink_libusb * const slu = sl->backend_data;
+ unsigned char* const buf = sl->q_buf;
+ unsigned char* const cmd_buf = sl->c_buf;
+ ssize_t size;
+ int i;
+
+ memset(cmd_buf, 0, STLINK_CMD_SIZE);
+ cmd_buf[0] = STLINK_DEBUG_COMMAND;
+ cmd_buf[1] = STLINK_DEBUG_READALLREGS;
+ size = send_recv(slu, cmd_buf, STLINK_CMD_SIZE, buf, 84);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return;
+ }
+ sl->q_len = (size_t) size;
+ stlink_print_data(sl);
+ for(i=0; i<16; i++)
+ regp->r[i]= read_uint32(sl->q_buf, i*4);
+ regp->xpsr = read_uint32(sl->q_buf, 64);
+ regp->main_sp = read_uint32(sl->q_buf, 68);
+ regp->process_sp = read_uint32(sl->q_buf, 72);
+ regp->rw = read_uint32(sl->q_buf, 76);
+ regp->rw2 = read_uint32(sl->q_buf, 80);
+ if (sl->verbose < 2)
+ return;
+
+ DD(sl, "xpsr = 0x%08x\n", read_uint32(sl->q_buf, 64));
+ DD(sl, "main_sp = 0x%08x\n", read_uint32(sl->q_buf, 68));
+ DD(sl, "process_sp = 0x%08x\n", read_uint32(sl->q_buf, 72));
+ DD(sl, "rw = 0x%08x\n", read_uint32(sl->q_buf, 76));
+ DD(sl, "rw2 = 0x%08x\n", read_uint32(sl->q_buf, 80));
}
void _stlink_usb_read_reg(stlink_t *sl, int r_idx, reg *regp) {
- DD(sl, "oops! read_reg not implemented for USB! Wanted to read reg %d\n",
- r_idx);
-}
+ struct stlink_libusb * const slu = sl->backend_data;
+ unsigned char* const buf = sl->q_buf;
+ unsigned char* const cmd_buf = sl->c_buf;
+ ssize_t size;
+ uint32_t r;
-void _stlink_usb_write_reg(stlink_t *sl, uint32_t reg, int idx) {
- DD(sl, "oops! write_reg not implemented for USB! Wanted to write %#x to %d\n",
- reg, idx);
+ memset(cmd_buf, 0, STLINK_CMD_SIZE);
+ cmd_buf[0] = STLINK_DEBUG_COMMAND;
+ cmd_buf[1] = STLINK_DEBUG_READREG;
+ cmd_buf[2] = (uint8_t) r_idx;
+ size = send_recv(slu, cmd_buf, STLINK_CMD_SIZE, buf, 4);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return;
+ }
+ sl->q_len = (size_t) size;
+ stlink_print_data(sl);
+ r = read_uint32(sl->q_buf, 0);
+ DD(sl, "r_idx (%2d) = 0x%08x\n", r_idx, r);
+
+ switch (r_idx) {
+ case 16:
+ regp->xpsr = r;
+ break;
+ case 17:
+ regp->main_sp = r;
+ break;
+ case 18:
+ regp->process_sp = r;
+ break;
+ case 19:
+ regp->rw = r; //XXX ?(primask, basemask etc.)
+ break;
+ case 20:
+ regp->rw2 = r; //XXX ?(primask, basemask etc.)
+ break;
+ default:
+ regp->r[r_idx] = r;
+ }
}
+void _stlink_usb_write_reg(stlink_t *sl, uint32_t reg, int idx) {
+ struct stlink_libusb * const slu = sl->backend_data;
+ unsigned char* const buf = sl->q_buf;
+ unsigned char *cmd_buf = sl->c_buf;
+ ssize_t size;
+ memset(cmd_buf, 0, STLINK_CMD_SIZE);
+ cmd_buf[0] = STLINK_DEBUG_COMMAND;
+ cmd_buf[1] = STLINK_DEBUG_WRITEREG;
+ cmd_buf[2] = idx;
+ write_uint32(cmd_buf + 3, reg);
+ size = send_recv(slu, cmd_buf, STLINK_CMD_SIZE, buf, 2);
+ if (size == -1) {
+ printf("[!] send_recv\n");
+ return;
+ }
+ sl->q_len = (size_t) size;
+ stlink_print_data(sl);
+}
stlink_backend_t _stlink_usb_backend = {
_stlink_usb_close,
int main(int ac, char** av) {
stlink_t* sl;
+ reg regs;
sl = stlink_open_usb(NULL, 10);
if (sl != NULL) {
// offset 0xC into TIM11 register? TIMx_DIER?
// stlink_read_mem32(sl, 0x4001100c, 4); */
+ /* Test 32 bit Write */
write_uint32(sl->q_buf,0x01234567);
stlink_write_mem32(sl,0x200000a8,4);
write_uint32(sl->q_buf,0x89abcdef);
stlink_read_mem32(sl, 0x200000a8, 4);
stlink_read_mem32(sl, 0x200000ac, 4);
+ /* Test 8 bit write */
write_uint32(sl->q_buf,0x01234567);
stlink_write_mem8(sl,0x200001a8,3);
write_uint32(sl->q_buf,0x89abcdef);
stlink_write_mem8(sl, 0x200001ac, 3);
stlink_read_mem32(sl, 0x200001a8, 4);
stlink_read_mem32(sl, 0x200001ac, 4);
-
printf("-- status\n");
stlink_status(sl);
printf("-- reset\n");
stlink_reset(sl);
+ stlink_force_debug(sl);
+ /* Test reg write*/
+ stlink_write_reg(sl, 0x01234567, 3);
+ stlink_write_reg(sl, 0x89abcdef, 4);
+ stlink_write_reg(sl, 0x12345678, 15);
+ for (off = 0; off < 21; off += 1)
+ stlink_read_reg(sl, off, ®s);
+
+
+ stlink_read_all_regs(sl, ®s);
printf("-- status\n");
stlink_status(sl);