本帖最后由 ddllxxrr 于 2015-2-25 21:42 编辑
这个例程是读芯片ＩＤ，我发现Atmel的ＩＤ十分的详细，把型号都可以查到。
首先打开Atmel Studio开发环境，插入开发板。这时弹出对话框可直接打开例程了。
主要是把ＣＨＩＰＩＤ的结构体打印出来：
结构如下：
- typedef struct chipid_data {
- //! Version of the device
- uint32_t ul_version;
- //! Embedded processor
- uint32_t ul_eproc;
- //! Non-volatile program memory size
- uint32_t ul_nvpsiz;
- //! Second non-volatile program memory size
- uint32_t ul_nvpsiz2;
- //! Internal SRAM size
- uint32_t ul_sramsiz;
- //! Architecture identifier
- uint32_t ul_arch;
- //! Non-volatile program memory type
- uint32_t ul_nvptyp;
- //! Extension flag
- uint32_t ul_extflag;
- //! Chip ID extension
- uint32_t ul_extid;
- } chipid_data_t;
- uint32_t chipid_read(Chipid *p_chipid, chipid_data_t *p_chipid_data)
- {
- if (NULL == p_chipid_data) {
- return 0xFFFFFFFF;
- }
-
- p_chipid_data->ul_version =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_VERSION_Msk) >>
- CHIPID_CIDR_VERSION_Pos;
- p_chipid_data->ul_eproc =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_EPROC_Msk) >>
- CHIPID_CIDR_EPROC_Pos;
- p_chipid_data->ul_nvpsiz =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_NVPSIZ_Msk) >>
- CHIPID_CIDR_NVPSIZ_Pos;
- p_chipid_data->ul_nvpsiz2 =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_NVPSIZ2_Pos) >>
- CHIPID_CIDR_NVPSIZ2_Pos;
- p_chipid_data->ul_sramsiz =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_SRAMSIZ_Msk) >>
- CHIPID_CIDR_SRAMSIZ_Pos;
- p_chipid_data->ul_arch =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_ARCH_Msk) >>
- CHIPID_CIDR_ARCH_Pos;
- p_chipid_data->ul_nvptyp =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_NVPTYP_Msk) >>
- CHIPID_CIDR_NVPTYP_Pos;
- p_chipid_data->ul_extflag =
- (p_chipid->CHIPID_CIDR & CHIPID_CIDR_EXT) >> 31;
-
- if (p_chipid_data->ul_extflag) {
- p_chipid_data->ul_extid =
- p_chipid->CHIPID_EXID & CHIPID_EXID_EXID_Msk;
- }
- return 0;
- }
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