Diff: source/hic_hal/nxp/lpc11u35/flash.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/hic_hal/nxp/lpc11u35/flash.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,120 @@
+/**
+ * @file    flash.c
+ * @brief
+ *
+ * DAPLink Interface Firmware
+ * Copyright (c) 2017-2017, 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 <string.h>
+#include "flash_hal.h"
+#include "iap.h"
+#include "util.h"
+#include "LPC11Uxx.h"
+
+// page buffer must be 4 byte algined and must reside in ram bank 1
+static __attribute__((section("RAM1"))) uint32_t page_buf[64];
+
+static uint32_t get_sector_num(uint32_t addr);
+
+uint32_t Init(uint32_t adr, uint32_t clk, uint32_t fnc)
+{
+    return 0; // No init needed
+}
+
+uint32_t UnInit(uint32_t fnc)
+{
+    return 0; // No init needed
+}
+
+uint32_t EraseChip(void)
+{
+    return (1); // IAP not supported
+}
+
+uint32_t EraseSector(uint32_t adr)
+{
+    uint32_t num = get_sector_num(adr);
+
+    iap_lock();
+
+    iap_op.cmd = 50;        // Prepare Sector for Erase
+    iap_op.par[0] = num;    // Start Sector
+    iap_op.par[1] = num;    // End Sector
+    iap_call(&iap_op);
+    if (iap_op.stat != CMD_SUCCESS) {
+        iap_unlock();
+        return (1);
+    }
+
+    iap_op.cmd = 52;                        // Erase Sector
+    iap_op.par[0] = num;                    // Start Sector
+    iap_op.par[1] = num;                    // End Sector
+    iap_op.par[2] = SystemCoreClock / 1000; // Core Clock in kHz
+    iap_call(&iap_op);
+    if (iap_op.stat != CMD_SUCCESS) {
+        iap_unlock();
+        return (1);
+    }
+
+    iap_unlock();
+
+    return 0; // Success
+}
+
+uint32_t ProgramPage(uint32_t adr, uint32_t sz, uint32_t *buf)
+{
+    uint32_t num = get_sector_num(adr);
+
+    iap_lock();
+
+    iap_op.cmd = 50;        // Prepare Sector for Program
+    iap_op.par[0] = num;    // Start Sector
+    iap_op.par[1] = num;    // End Sector
+    iap_call(&iap_op);
+    if (iap_op.stat != CMD_SUCCESS) {
+        iap_unlock();
+        return (1);
+    }
+
+    while (sz > 0) {
+        uint32_t copy_size = MIN(sz, sizeof(page_buf));
+        memset(page_buf, 0xFF, sizeof(page_buf));
+        memcpy(page_buf, buf, copy_size);
+        iap_op.cmd = 51;                        // Erase Sector
+        iap_op.par[0] = adr;                    // Destination
+        iap_op.par[1] = (uint32_t)page_buf;     // Source
+        iap_op.par[2] = 256;                    // Write size
+        iap_op.par[3] = SystemCoreClock / 1000; // Core Clock in kHz
+        iap_call(&iap_op);
+        if (iap_op.stat != CMD_SUCCESS) {
+            iap_unlock();
+            return (1);
+        }
+        sz -= copy_size;
+        adr += copy_size;
+        buf += copy_size / 4;
+    }
+
+    iap_unlock();
+
+    return 0; // Success
+}
+
+static uint32_t get_sector_num(uint32_t addr)
+{
+    return addr / 0x1000;
+}