Diff: source/board/mkit_dk_dongle_nrf5x.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/board/mkit_dk_dongle_nrf5x.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,140 @@
+/**
+ * @file    nrf5x.c
+ * @brief   board ID for the Nordic nRF5x developments boards
+ *
+ * DAPLink Interface Firmware
+ * Copyright (c) 2009-2019, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "sam3u2c.h"
+#include "DAP_config.h"
+#include "target_config.h"
+#include "util.h"
+#include "flash_manager.h"
+#include "target_family.h"
+#include "target_board.h"
+
+// BOARD_ID pointer will be set during run time to point to one of these
+const char *board_id_nrf51_mkit = "1070";
+const char *board_id_nrf51_dk = "1100";
+const char *board_id_nrf51_dongle = "1120";
+const char *board_id_nrf52_dk = "1101";
+const char *board_id_nrf52840_dk = "1102";
+
+extern target_cfg_t target_device_nrf52;
+extern target_cfg_t target_device_nrf52840;
+static uint8_t device_type;
+
+static void set_target_device(uint32_t device)
+{
+    device_type = device;
+    if (device == 0) {
+        // Target device already set to nRF51
+    }
+    else if (device == 1) {
+        target_device = target_device_nrf52;
+    }
+    else if (device == 2) {
+        target_device = target_device_nrf52840;
+    }
+}
+
+
+static void nrf_prerun_board_config(void)
+{
+    // Work around for setting the correct board id based on GPIOs
+    uint8_t bit1;
+    uint8_t bit2;
+    uint8_t bit3;
+
+    PIOB->PIO_PER = (1 << 1); // Enable PIO pin PB1
+    PIOB->PIO_PER = (1 << 2); // Enable PIO pin PB2
+    PIOB->PIO_PER = (1 << 3); // Enable PIO pin PB3
+    PIOB->PIO_ODR = (1 << 1); // Disabe output
+    PIOB->PIO_ODR = (1 << 2); // Disabe output
+    PIOB->PIO_ODR = (1 << 3); // Disabe output
+    PIOB->PIO_PUER = (1 << 1); // Enable pull-up
+    PIOB->PIO_PUER = (1 << 2); // Enable pull-up
+    PIOB->PIO_PUER = (1 << 3); // Enable pull-up
+
+    bit1 = (PIOB->PIO_PDSR >> 1) & 1; // Read PB1
+    bit2 = (PIOB->PIO_PDSR >> 2) & 1; // Read PB2
+    bit3 = (PIOB->PIO_PDSR >> 3) & 1; // Read PB3
+
+    /* pins translate to board-ids as follow
+     *
+     *  PB3|PB2|PB1|BOARD ID| BOARD
+     *  ----------------------------------
+     *   0 | 0 | 0 |  1120  | nRF51-Dongle
+     *   0 | 0 | 1 |  1100  | nRF51-DK
+     *   0 | 1 | 0 |  1101  | nRF52-DK
+     *   0 | 1 | 1 |  1102  | nRF52840-DK
+     *   1 | 1 | 1 |  1070  | older nRF51 (mkit)
+     *   1 | 0 | 0 |    undefined
+     *   1 | 0 | 1 |    undefined
+     *   1 | 1 | 0 |    undefined
+     */
+
+
+    if (bit3) {
+        set_target_device(0);
+        target_device.rt_family_id = kNordic_Nrf51_FamilyID;
+        target_device.rt_board_id = board_id_nrf51_mkit;  // 1070
+        //Note only a setting of 111 is defined
+        util_assert(bit2 && bit1);
+    } else {
+        if (!bit2 && bit1) {
+            set_target_device(0);
+            target_device.rt_family_id = kNordic_Nrf51_FamilyID;
+            target_device.rt_board_id = board_id_nrf51_dk;  // 1100
+        }
+        else if (!bit2 && !bit1) {
+            set_target_device(0);
+            target_device.rt_family_id = kNordic_Nrf51_FamilyID;
+            target_device.rt_board_id = board_id_nrf51_dongle;  // 1120
+        }
+        else if (bit2 && !bit1) {
+            set_target_device(1);
+            target_device.rt_family_id = kNordic_Nrf52_FamilyID;
+            target_device.rt_board_id = board_id_nrf52_dk;  // 1101
+        } else { //(bit2 && bit1)
+            set_target_device(2);
+            target_device.rt_family_id = kNordic_Nrf52_FamilyID;
+            target_device.rt_board_id = board_id_nrf52840_dk;  // 1102
+        }
+    }
+
+    PIOB->PIO_PUDR = (1 << 1); // Disable pull-up
+    PIOB->PIO_PUDR = (1 << 2); // Disable pull-up
+    PIOB->PIO_PUDR = (1 << 3); // Disable pull-up
+}
+
+static void nrf_swd_set_target_reset(uint8_t asserted){
+    if (asserted && device_type == 0) {
+        PIOA->PIO_OER = PIN_SWDIO;
+        PIOA->PIO_OER = PIN_SWCLK;
+    }else if(!asserted) {
+        PIOA->PIO_MDER = PIN_SWDIO | PIN_SWCLK | PIN_nRESET;
+    }
+}
+
+const board_info_t g_board_info = {
+    .info_version = kBoardInfoVersion,
+    .flags = kEnablePageErase,
+    .prerun_board_config = nrf_prerun_board_config,
+    .swd_set_target_reset = nrf_swd_set_target_reset,
+    .target_cfg = &target_device,
+};