Difference between FieldEdit and FieldChange events

Field Change PeopleCode is for recalculating field values based on changes made to other fields. For instance, suppose you have 2 fields, rate and quantity and there is another field which shows total cost. Whenever a value is changed in either of the two fields, rate and quantity, the total cost will also change. So on the field change event of those two fields, you can write code to calculate the total cost.

Field edit event is used for validating field values. If the field doesn't pass the validation, an error message is shown and the page is redisplayed with that field marked in red. For instance, if you do not want a certain quantity to exceed 1,000 and it does, the system should display an error. You can write PeopleCode that will check the quantity, if it is greater than 1000 an error message will be displayed. 
/** @brief I2C address to be used for ST25DV Data accesses. */ #define ST25DV_ADDR_DATA_I2C 0xA6 #define ST25DV_ADDR_DATA_W_I2C 0xA6 #define ST25DV_ADDR_DATA_R_I2C 0xA7 /** @brief I2C address to be used for ST25DV System accesses. */ #define ST25DV_ADDR_SYST_I2C 0xAE #define ST25DV_ADDR_SYST_W_I2C 0xAE #define ST25DV_ADDR_SYST_R_I2C 0xAF /* Registers i2c address */ /** @brief ST25DV GPO register address. */ #define ST25DV_GPO_REG 0x0000 /** @brief ST25DV IT duration register address. */ #define ST25DV_ITTIME_REG 0x0001 /** @brief ST25DV Energy Harvesting register address. */ #define ST25DV_EH_MODE_REG 0x0002 /** @brief ST25DV RF management register address. */ #define ST25DV_RF_MNGT_REG 0x0003 /** @brief ST25DV Area 1 security register address. */ #define ST25DV_RFA1SS_REG 0x0004 /** @brief ST25DV Area 1 end address register address. */ #define ST25DV_ENDA1_REG 0x0005 /** @brief ST25DV Area 2 security register address. */ #define ST25DV_RFA2SS_REG 0x0006 /** @brief ST25DV Area 2 end address register address. */ #define ST25DV_ENDA2_REG 0x0007 /** @brief ST25DV Area 3 security register address. */ #define ST25DV_RFA3SS_REG 0x0008 /** @brief ST25DV Area 3 end address register address. */ #define ST25DV_ENDA3_REG 0x0009 /** @brief ST25DV Area 4 security register address. */ #define ST25DV_RFA4SS_REG 0x000A /** @brief ST25DV I2C security register address. */ #define ST25DV_I2CSS_REG 0x000B /** @brief ST25DV Capability Container lock register address. */ #define ST25DV_LOCKCCFILE_REG 0x000C /** @brief ST25DV Mailbox mode register address. */ #define ST25DV_MB_MODE_REG 0x000D /** @brief ST25DV Mailbox Watchdog register address. */ #define ST25DV_MB_WDG_REG 0x000E /** @brief ST25DV Configuration lock register address. */ #define ST25DV_LOCKCFG_REG 0x000F /** @brief ST25DV DSFID lock register address. */ #define ST25DV_LOCKDSFID_REG 0x0010 /** @brief ST25DV AFI lock register address. */ #define ST25DV_LOCKAFI_REG 0x0011 /** @brief ST25DV DSFID register address. */ #define ST25DV_DSFID_REG 0x0012 /** @brief ST25DV AFI register address. */ #define ST25DV_AFI_REG 0x0013 /** @brief ST25DV Memory size register address. */ #define ST25DV_MEM_SIZE_LSB_REG 0x0014 /** @brief ST25DV Memory size register address. */ #define ST25DV_MEM_SIZE_MSB_REG 0x0015 /** @brief ST25DV Block size register address. */ #define ST25DV_BLK_SIZE_REG 0x0016 //** @brief ST25DV ICref register address. */ #define ST25DV_ICREF_REG 0x0017 /** @brief ST25DV UID register address. */ #define ST25DV_UID_REG 0x0018 /** @brief ST25DV IC revision register address. */ #define ST25DV_ICREV_REG 0x0020 /** @brief ST25DV I2C password register address. */ #define ST25DV_I2CPASSWD_REG 0x0900 /* Dynamic Registers i2c address */ /** @brief ST25DV GPO dynamic register address. */ #define ST25DV_GPO_DYN_REG 0x2000 /** @brief ST25DV Energy Harvesting control dynamic register address. */ #define ST25DV_EH_CTRL_DYN_REG 0x2002 /** @brief ST25DV RF management dynamic register address. */ #define ST25DV_RF_MNGT_DYN_REG 0x2003 /** @brief ST25DV I2C secure session opened dynamic register address. */ #define ST25DV_I2C_SSO_DYN_REG 0x2004 /** @brief ST25DV Interrupt status dynamic register address. */ #define ST25DV_ITSTS_DYN_REG 0x2005 /** @brief ST25DV Mailbox control dynamic register address. */ #define ST25DV_MB_CTRL_DYN_REG 0x2006 /** @brief ST25DV Mailbox message length dynamic register address. */ #define ST25DV_MBLEN_DYN_REG 0x2007 /** @brief ST25DV Mailbox buffer address. */ #define ST25DV_MAILBOX_RAM_REG 0x2008 /* GPO */ #define ST25DV_GPO_RFUSERSTATE_SHIFT (0) #define ST25DV_GPO_RFUSERSTATE_FIELD 0xFE #define ST25DV_GPO_RFUSERSTATE_MASK 0x01 #define ST25DV_GPO_RFACTIVITY_SHIFT (1) #define ST25DV_GPO_RFACTIVITY_FIELD 0xFD #define ST25DV_GPO_RFACTIVITY_MASK 0x02 #define ST25DV_GPO_RFINTERRUPT_SHIFT (2) #define ST25DV_GPO_RFINTERRUPT_FIELD 0xFB #define ST25DV_GPO_RFINTERRUPT_MASK 0x04 #define ST25DV_GPO_FIELDCHANGE_SHIFT (3) #define ST25DV_GPO_FIELDCHANGE_FIELD 0xF7 #define ST25DV_GPO_FIELDCHANGE_MASK 0x08 #define ST25DV_GPO_RFPUTMSG_SHIFT (4) #define ST25DV_GPO_RFPUTMSG_FIELD 0xEF #define ST25DV_GPO_RFPUTMSG_MASK 0x10 #define ST25DV_GPO_RFGETMSG_SHIFT (5) #define ST25DV_GPO_RFGETMSG_FIELD 0xDF #define ST25DV_GPO_RFGETMSG_MASK 0x20 #define ST25DV_GPO_RFWRITE_SHIFT (6) #define ST25DV_GPO_RFWRITE_FIELD 0xBF #define ST25DV_GPO_RFWRITE_MASK 0x40 #define ST25DV_GPO_ENABLE_SHIFT (7) #define ST25DV_GPO_ENABLE_FIELD 0x7F #define ST25DV_GPO_ENABLE_MASK 0x80 #define ST25DV_GPO_ALL_MASK 0xFF /* GPO_Dyn */ #define ST25DV_GPO_DYN_RFUSERSTATE_SHIFT (0) #define ST25DV_GPO_DYN_RFUSERSTATE_FIELD 0xFE #define ST25DV_GPO_DYN_RFUSERSTATE_MASK 0x01 #define ST25DV_GPO_DYN_RFACTIVITY_SHIFT (1) #define ST25DV_GPO_DYN_RFACTIVITY_FIELD 0xFD #define ST25DV_GPO_DYN_RFACTIVITY_MASK 0x02 #define ST25DV_GPO_DYN_RFINTERRUPT_SHIFT (2) #define ST25DV_GPO_DYN_RFINTERRUPT_FIELD 0xFB #define ST25DV_GPO_DYN_RFINTERRUPT_MASK 0x04 #define ST25DV_GPO_DYN_FIELDCHANGE_SHIFT (3) #define ST25DV_GPO_DYN_FIELDCHANGE_FIELD 0xF7 #define ST25DV_GPO_DYN_FIELDCHANGE_MASK 0x08 #define ST25DV_GPO_DYN_RFPUTMSG_SHIFT (4) #define ST25DV_GPO_DYN_RFPUTMSG_FIELD 0xEF #define ST25DV_GPO_DYN_RFPUTMSG_MASK 0x10 #define ST25DV_GPO_DYN_RFGETMSG_SHIFT (5) #define ST25DV_GPO_DYN_RFGETMSG_FIELD 0xDF #define ST25DV_GPO_DYN_RFGETMSG_MASK 0x20 #define ST25DV_GPO_DYN_RFWRITE_SHIFT (6) #define ST25DV_GPO_DYN_RFWRITE_FIELD 0xBF #define ST25DV_GPO_DYN_RFWRITE_MASK 0x40 #define ST25DV_GPO_DYN_ENABLE_SHIFT (7) #define ST25DV_GPO_DYN_ENABLE_FIELD 0x7F #define ST25DV_GPO_DYN_ENABLE_MASK 0x80 #define ST25DV_GPO_DYN_ALL_MASK 0xFF /* ITTIME */ #define ST25DV_ITTIME_DELAY_SHIFT (0) #define ST25DV_ITTIME_DELAY_FIELD 0xFC #define ST25DV_ITTIME_DELAY_MASK 0x03 /* ITSTS_Dyn */ #define ST25DV_ITSTS_RFUSERSTATE_SHIFT (0) #define ST25DV_ITSTS_RFUSERSTATE_FIELD 0xFE #define ST25DV_ITSTS_RFUSERSTATE_MASK 0x01 #define ST25DV_ITSTS_RFACTIVITY_SHIFT (1) #define ST25DV_ITSTS_RFACTIVITY_FIELD 0xFD #define ST25DV_ITSTS_RFACTIVITY_MASK 0x02 #define ST25DV_ITSTS_RFINTERRUPT_SHIFT (2) #define ST25DV_ITSTS_RFINTERRUPT_FIELD 0xFB #define ST25DV_ITSTS_RFINTERRUPT_MASK 0x04 #define ST25DV_ITSTS_FIELDFALLING_SHIFT (3) #define ST25DV_ITSTS_FIELDFALLING_FIELD 0xF7 #define ST25DV_ITSTS_FIELDFALLING_MASK 0x08 #define ST25DV_ITSTS_FIELDRISING_SHIFT (4) #define ST25DV_ITSTS_FIELDRISING_FIELD 0xEF #define ST25DV_ITSTS_FIELDRISING_MASK 0x10 #define ST25DV_ITSTS_RFPUTMSG_SHIFT (5) #define ST25DV_ITSTS_RFPUTMSG_FIELD 0xDF #define ST25DV_ITSTS_RFPUTMSG_MASK 0x20 #define ST25DV_ITSTS_RFGETMSG_SHIFT (6) #define ST25DV_ITSTS_RFGETMSG_FIELD 0xBF #define ST25DV_ITSTS_RFGETMSG_MASK 0x40 #define ST25DV_ITSTS_RFWRITE_SHIFT (7) #define ST25DV_ITSTS_RFWRITE_FIELD 0x7F 解释下这些宏定义
06-05
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