clone kl26 codebase for prepartion as kl27

Author: gerargz

records/board/kl27z_bl.yaml

@@ -0,0 +1,4 @@
+common:
+    sources:
+        board:
+            - source/board/kl26z_bl.c

records/board/microbitv2.yaml

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+common:
+    macros:
+        - HID_LED_DEF=GPIO_LED_ON
+        - CDC_LED_DEF=GPIO_LED_ON
+        - MSC_LED_DEF=GPIO_LED_ON
+        - USB_PROD_STR="BBC micro:bit CMSIS-DAP"
+    sources:
+        board:
+            - source/board/microbit.c
+        family:
+            - source/family/nordic/nrf51822/target_16.c
+            - source/family/nordic/target_reset_nrf51.c

records/hic_hal/kl27z.yaml

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+common:
+    target:
+        - mkl26z128xxx4
+    core:
+        - Cortex-M0+
+    macros:
+        - INTERFACE_KL26Z
+        - CPU_MKL26Z128VLH4
+        - DAPLINK_HIC_ID=0x97969901  # DAPLINK_HIC_ID_KL26
+        - FLASH_SSD_CONFIG_ENABLE_FLEXNVM_SUPPORT=0
+        - FLASH_DRIVER_IS_FLASH_RESIDENT=1
+        - DAPLINK_NO_ASSERT_FILENAMES
+        - OS_CLOCK=48000000
+    includes:
+        - source/hic_hal/freescale/kl26z
+        - source/hic_hal/freescale/kl26z/MKL26Z4
+        - projectfiles/uvision/kl26z_bl/build
+    sources:
+        hic_hal:
+            - source/hic_hal/freescale
+            - source/hic_hal/freescale/kl26z
+            - source/hic_hal/freescale/kl26z/MKL26Z4
+            - source/hic_hal/freescale/kl26z/armcc
+        fsl_flash_driver:
+            - source/hic_hal/freescale/iap
+
+tool_specific:
+    uvision:
+        misc:
+            ld_flags:
+                - --predefine="-I..\..\..\source\hic_hal\freescale\kl26z"
+    make_armcc:
+        misc:
+            ld_flags:
+                - --predefine="-Isource\hic_hal\freescale\kl26z"

source/board/kl27z_bl.c

@@ -0,0 +1,64 @@
+/**
+ * @file    kl26z_bl.c
+ * @brief   board ID and meta-data for the hardware interface circuit (HIC) based on the NXP KL26Z
+ *
+ * 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 "target_config.h"
+#include "daplink_addr.h"
+#include "compiler.h"
+#include "target_board.h"
+#include "target_family.h"
+
+// Warning - changing the interface start will break backwards compatibility
+COMPILER_ASSERT(DAPLINK_ROM_IF_START == KB(32));
+COMPILER_ASSERT(DAPLINK_ROM_IF_SIZE == KB(95));
+
+/**
+* List of start and size for each size of flash sector
+* The size will apply to all sectors between the listed address and the next address
+* in the list.
+* The last pair in the list will have sectors starting at that address and ending
+* at address start + size.
+*/
+static const sector_info_t sectors_info[] = {
+    {DAPLINK_ROM_IF_START, 1024},
+ };
+
+// kl26z128 target information
+target_cfg_t target_device = {
+    .sectors_info               = sectors_info,
+    .sector_info_length         = (sizeof(sectors_info))/(sizeof(sector_info_t)),
+    .flash_regions[0].start     = DAPLINK_ROM_IF_START,
+    .flash_regions[0].end       = DAPLINK_ROM_IF_START + DAPLINK_ROM_IF_SIZE,
+    .flash_regions[0].flags     = kRegionIsDefault,  
+    .ram_regions[0].start       = 0x1FFFF000,
+    .ram_regions[0].end         = 0x20003000,
+};
+
+//bootloader has no family
+const target_family_descriptor_t *g_target_family = NULL;
+
+const board_info_t g_board_info = {
+    .info_version = kBoardInfoVersion,
+    .board_id = "0000",
+    .daplink_url_name =       "HELP_FAQHTM",
+    .daplink_drive_name =       "MAINTENANCE",
+    .daplink_target_url = "https://mbed.com/daplink",
+    .target_cfg = &target_device,
+};

source/board/microbitv2.c

@@ -0,0 +1,89 @@
+/**
+ * @file    microbit.c
+ * @brief   board ID for the BBC Microbit board
+ *
+ * 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 "fsl_device_registers.h"
+#include "IO_Config.h"
+#include "DAP.h"
+#include "target_family.h"
+#include "target_board.h"
+
+const char * const board_id_mb_1_3 = "9900";
+const char * const board_id_mb_1_5 = "9901";
+
+typedef enum {
+    BOARD_VERSION_1_3 = 0,
+    BOARD_VERSION_1_5 = 1,
+} mb_version_t;
+
+// Enables Board Type Pin, reads it and disables it
+// Depends on gpio_init() to have been executed already
+static uint8_t read_board_type_pin(void) {
+    uint8_t pin_state = 0;
+    // GPIO mode, Pull enable, pull down, input
+    PIN_BOARD_TYPE_PORT->PCR[PIN_BOARD_TYPE_BIT] = PORT_PCR_MUX(1) | PORT_PCR_PE(1) | PORT_PCR_PS(0);
+    PIN_BOARD_TYPE_GPIO->PDDR &= ~PIN_BOARD_TYPE;
+    // Wait to stabilise, based on gpio.c busy_wait(), at -O2 10000 iterations delay ~850us
+    for (volatile uint32_t i = 10000; i > 0; i--);
+    // Read pin
+    pin_state = (PIN_BOARD_TYPE_GPIO->PDIR & PIN_BOARD_TYPE);
+    // Revert and disable
+    PIN_BOARD_TYPE_PORT->PCR[PIN_BOARD_TYPE_BIT] = PORT_PCR_MUX(0) | PORT_PCR_PE(0);
+    return pin_state;
+}
+
+static void set_board_id(mb_version_t board_version) {
+    switch (board_version) {
+        case BOARD_VERSION_1_3:
+            target_device.rt_board_id = board_id_mb_1_3;
+            break;
+        case BOARD_VERSION_1_5:
+            target_device.rt_board_id = board_id_mb_1_5;
+            break;
+        default:
+            target_device.rt_board_id = board_id_mb_1_5;
+            break;
+    }
+}
+
+// Called in main_task() to init before USB and files are configured
+static void prerun_board_config(void) {
+    // With only two boards the digital pin read maps directly to the type
+    mb_version_t board_version = (mb_version_t)read_board_type_pin();
+    set_board_id(board_version);
+}
+
+// USB HID override function return 1 if the activity is trivial or response is null 
+uint8_t usbd_hid_no_activity(uint8_t *buf)
+{
+    if(buf[0] == ID_DAP_Vendor3 &&  buf[1] == 0)
+        return 1;
+    else
+        return 0;
+}
+
+const board_info_t g_board_info = {
+    .info_version = kBoardInfoVersion,
+    .family_id = kNordic_Nrf51_FamilyID,
+    .daplink_url_name =       "MICROBITHTM",
+    .daplink_drive_name =       "MICROBIT   ",
+    .daplink_target_url = "https://microbit.org/device/?id=@B&v=@V",
+    .prerun_board_config = prerun_board_config,
+    .target_cfg = &target_device,
+};