From 73bf3cdb517b55f662ed5fa513cdaaf55c1fd0c8 Mon Sep 17 00:00:00 2001
From: tao_z <tzj0429@163.com>
Date: Wed, 01 Jun 2022 23:51:43 +0800
Subject: [PATCH] Bootloader调试完成，可以正常烧录程序
---
Application/source/nvm.c | 45 +++++++++++++++++++++++++++++++++++++++------
1 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/Application/source/nvm.c b/Application/source/nvm.c
index 9be73eb..79e4256 100644
--- a/Application/source/nvm.c
+++ b/Application/source/nvm.c
@@ -119,19 +119,33 @@
return OP_STATUS_OK;
}
-extern int8_t NVM_FlashCRCCheck(uint8_t *ptrdata)
+extern int8_t NVM_FlashCRCCheck(uint8_t *ptrdata, uint32_t targetcrc, uint32_t len)
{
int8_t ret = OP_STATUS_FAIL;
uint32_t crc = 0;
uint32_t init_crc = 0xFFFFFFFF;
- crc = CRC_Cal32(init_crc, ptrdata + 4, RAM_FALSH_DRIVE_LENGHT);
+ crc = CRC_Cal32(init_crc, ptrdata, len);
crc = crc ^ init_crc;
- if (crc == *((uint32_t *)ptrdata))
+ if (crc == targetcrc)
{
ret = OP_STATUS_OK;
}
return ret;
}
+
+// extern int8_t NVM_FlashDriverCRCCheck(uint8_t *ptrdata, uint32_t targetcrc, uint32_t len)
+// {
+// int8_t ret = OP_STATUS_FAIL;
+// uint32_t crc = 0;
+// uint32_t init_crc = 0xFFFFFFFF;
+// crc = CRC_Cal32(init_crc, ptrdata, len);
+// crc = crc ^ init_crc;
+// if (crc == targetcrc)
+// {
+// ret = OP_STATUS_OK;
+// }
+// return ret;
+// }
extern int8_t NVM_ReInitFlashDriveRam(void)
{
memset((void *)flashCode, 0x0, RAM_FALSH_DRIVE_LENGHT + 4);
@@ -168,13 +182,31 @@
}
}
-extern uint8_t MEM_PartitionCRCOK(uint8_t partionid)
+static void NVM_FlipEndian(void *address, uint16_t size)
+{
+
+ uint8_t temp = 0;
+ uint8_t i = 0;
+ for (i = size; i > size / 2; i--)
+ {
+ temp = ((uint8_t *)address)[size - i];
+ ((uint8_t *)address)[size - i] = ((uint8_t *)address)[i - 1];
+ ((uint8_t *)address)[i - 1] = temp;
+ }
+}
+
+extern uint8_t MEM_PartitionCRCOK(uint8_t partionid, uint32_t targetcrc)
{
uint8_t ret = 0;
+ uint32_t length = 0;
+ targetcrc = targetcrc ^ 0xFFFFFFFF;
switch (partionid)
{
case MEM_PARTITION_CODEFLASH:
- ret = (OP_STATUS_OK == NVM_FlashCRCCheck((uint8_t *)APPCODE_START));
+ length = *((uint32_t *)(APPCODE_START + 12));
+ NVM_FlipEndian((void *)&length, 4);
+ length -= 4;
+ ret = (OP_STATUS_OK == NVM_FlashCRCCheck((uint8_t *)(APPCODE_START + 4), targetcrc, length));
if (ret == 1)
{
// write present flag
@@ -186,7 +218,8 @@
/* code */
break;
case MEM_PARTITION_RAM:
- ret = (OP_STATUS_OK == NVM_FlashCRCCheck(flashCode));
+ length = RAM_FALSH_DRIVE_LENGHT;
+ ret = (OP_STATUS_OK == NVM_FlashCRCCheck(flashCode, targetcrc, length));
if (ret == 1)
{
Nvm_Flags.flash_driver_loaded = 1;
--
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