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| 型号： | 80515-FPBM-TFP2 |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/36页 |
| 文件大小： | 0K |
| 描述： | BOARD TFP2 FLASH PROGR 73S12XX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | Teridian™ |
| 类型： | 闪存 |
| 适用于相关产品： | Teridian Embedded Controllers |
| 所含物品： | 编程器，线缆，磁盘，电源 |
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Flash Programmer Model TFP2 User’s Manual
The following cases apply to using the CHKSUM.EXE utility:
1. If the last four bytes of the target hex file are unused (0xFF), the CHKSUM.EXE utility will insert
its own calculated two byte CRC and two byte checksum.
2. If any of the last four bytes of the target hex file are non-0xFF values, the CHKSUM.EXE utility
will NOT overwrite the four original values.
The CHKSUM.EXE utility displays the following warning when it encounters non-0xFF values:
Figure 2-2: CHKSUM.EXE Warning Display
When programming the target FLASH memory, these last four bytes of the target hex file are transferred
intact. Either the CHKSUM.EXE calculated CRC and checksum bytes are copied or the original target’s
hex data are copied. If the last two bytes of the target hex file are 0xFF (CHKSUM not used), the TFP2
overwrites the last two 0xFF bytes with its calculated checksum during the Hyper-Terminal file Download
operation.
With HyperTerminal configured for serial COM port, 38400 baud, 1 stop bit, no parity, XON/XOFF (refer to
Section 3.3 for serial communication setup information) the following information is displayed upon
applying power to the TFP2. Any generic terminal emulation program will work. However, the target hex
file download instructions presented apply to HyperTerminal.
Figure 2-3: TFP2 Power-Up Information Display
The Memory Size Switch setting and the checksum of the current target file stored in the TFP2’s internal
EEPROM are displayed. An “Invalid Memory Size setting” message appears if the Memory Size Switch is
set to one of the invalid positions. Rotate the Memory Size Switch to a proper setting and re-apply power
to the TFP2 to update the Memory Size setting.
If the target hex file has non-FF values in any of the last four bytes, the above power-on screen may
display a “TFP2 EEPROM verification error.” message. The displayed “TFP2 EEPROM Checksum =”
value and “Stored Checksum =” value will be different. This occurs when the stored checksum value
(from user’s target file) is derived from a different checksum calculation from what the TFP2 uses.
Therefore, the TFP2 cannot confirm the EEPROM’s contents. However, the checksum verification error
will not prevent the TFP2 from programming a target board. The “TFP2 EEPROM Checksum =” value is
recalculated upon every power-on or system reset. Manual verification of the EEPROM’s contents
requires comparing the TFP2 EEPROM Checksum value derived after the file download to subsequent
power-on recalculated checksum values. See Figure 2-8 for an example of a displayed checksum value
after a file download.
Upon pressing the “Enter” key , the “>” character is displayed indicating the TFP2 acknowledges the PC’s
keyboard. Typing “?” followed by the “Enter” key displays the Help Menu.
Revision 2.3
8 of 36
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