Diff: source/family/nxp/target_reset_lpc4088.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/family/nxp/target_reset_lpc4088.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,78 @@
+/**
+ * @file    target_reset.c
+ * @brief   Target reset for the lpc4088
+ *
+ * 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 "swd_host.h"
+#include "gpio.h"
+#include "target_family.h"
+
+#define PIN_ISPCTRL1      (1<<12)
+#define PIN_ISPCTRL2      (1<<15)
+
+static void gpio_set_isp_pin(uint8_t state) {
+    if (state) {
+        // High => Both pins are inputs
+        LPC_GPIO->DIR[0] &= ~(PIN_ISPCTRL1);
+        LPC_GPIO->DIR[1] &= ~(PIN_ISPCTRL2);
+    } else {
+        // Low => Both pins are outputs with 0
+        LPC_GPIO->CLR[0] = (PIN_ISPCTRL1);
+        LPC_GPIO->CLR[1] = (PIN_ISPCTRL2);
+        LPC_GPIO->DIR[0] |= (PIN_ISPCTRL1);
+        LPC_GPIO->DIR[1] |= (PIN_ISPCTRL2);
+    }
+}
+
+static void prerun_target_config(void)
+{
+    // Configure ISPCTRL as output and high
+    // We use two ISP pins to cover different hardware versions
+    LPC_IOCON->TMS_PIO0_12 |= 0x01;
+    LPC_IOCON->PIO1_15 &= ~0x07;
+    gpio_set_isp_pin(1);
+}
+
+
+static uint8_t lpc4088_target_set_state(target_state_t state)
+{
+    //return swd_set_target_state_hw(state);
+    uint8_t res;
+    if (state == RESET_PROGRAM)
+    {
+        gpio_set_isp_pin(0);
+        res = swd_set_target_state_hw(state);
+        gpio_set_isp_pin(1);
+    }
+    else
+    {
+        gpio_set_isp_pin(1);
+        res = swd_set_target_state_hw(state);
+    }
+    return res;
+}
+
+const target_family_descriptor_t g_nxp_lpc4088 = {
+    .family_id = VENDOR_TO_FAMILY(kNXP_VendorID, 0), //ID not maching the predefined family ids
+    .prerun_target_config = prerun_target_config,
+    .target_set_state = lpc4088_target_set_state,
+};
+
+const target_family_descriptor_t *g_target_family = &g_nxp_lpc4088;
+