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REJ10J0817-0100Z PCA7439 Instruction Manual PROM Programming Adapter for M37221EAFP Second Edition: January 1, 2002 Mitsubishi Electric Corporation Mitsubishi Electric Semiconductor Application Engineering Corporation ( 1 / 14 )
* IC51-0422-393 is products of Yamaichi Electronics Co., Ltd. * R4944A, R4945 and R4945A are trademarks of Advantest Corporation.
Contents 1. Precautions for Safety ........................................................................................................ 4 1.1 Safety Symbols and Meanings ............................................................................. 4 2. Introduction ....................................................................................................................... 6 2.1 Things to Check When Unpacking ...................................................................... 6 3.
1. Precautions for Safety In this instruction manual, several icons are used to insure proper handling of this product and also to prevent injuries to you or other persons, or damage to your properties. This chapter describes precautions which should be taken in order to use this product safely and properly. Be sure to read this chapter before using this product. 1.
WARNING Warning for Handling This Product: • This equipment is to be used in an environment with a maximum ambient temperature of 35˚C. Care should be taken that this temperature is not exceeded. • Select the proper programming mode of the PROM programmer. CAUTION Cautions to Be Taken for This Product: • Do not disassemble or modify this product. Personal injury due to electric shock may occur if this product is disassembled or modified. • Use caution when handling this product.
2. Introduction PCA7439 is a programming adapter for 8-bit microcomputers of 7200 Series. The adapter is a tool that can be used to write programs into internal PROM of microcomputers using a commercially available PROM programmer. This manual describes the specifications and the operation of PCA7439. Figure 2.1 shows the external view of PCA7439 and its constituent parts. Figure 2.1 External view of PCA7439 and its constituent parts 2.
3. Specifications Table 3.1 shows specifications of PCA7439. Table 3.1 Specifications of PCA7439 MCU type 7200 Series OTP packages (42P2R) M37221EAFP Operating clock frequency 4 MHz (Supplied by the ceramic oscillator mounted on PCA7439) Power supply Supplied from Vcc of the PROM programmer IC socket IC51-0422-393 (Made by Yamaichi Electronics Co., Ltd.) PCA7439 Board configuration Board to insert the programmable MCU (IC socket for 42-pin QFP is mounted.
4. How to Write the Program This chapter describes how to write programs using a PROM programmer. For details on how to operate the PROM programmer, refer to the user's manual of the PROM programmer. 4.1 Programming Procedures Follow procedures (1) to (7) to write programs into the MCU. (1) Read the program into the PROM programmer. (2) Attach the adapter to the PROM programmer. (See Section 4.2) (3) Insert the MCU into the adapter. (See Section 4.
4.2 Attaching Adapter to PROM Programmer As shown in Figure 4.1, attach the pin No. 1 of the PCA7402E PROM programmer connector (Standard-pitch 32-pin pin-header mounted) to the pin No. 1 of the IC socket of the PROM programmer. Be careful when attaching the adapter because incorrect insertion can cause fatal damage to the MCU. Figure 4.1 Attaching the adapter to the PROM programmer 4.3 Inserting MCU into Programming Adapter (1) As shown in Figure 4.
4.4 Precautions When Opening and Closing IC Socket When opening and closing the IC socket, hold the adapter horizontally as shown in Figure 4.3. Otherwise the inside of the IC socket may become damaged and cause an electrical insulation failure. Side view Figure 4.3 Holding the adapter in a horizontal position 4.5 Precautions When Handling Adapter Don't touch the connector in the IC socket and the pins on the PROM programmer connector because dirt may cause an electrical insulation failure.
5. Recommended PROM Programmer The PROM programmers listed in Table 5.1 are recommended for the adapter PCA7439. Using the actual products, we have verified that these PROM programmers can be used to write programs without problem. Nonconformity occurring by using any other PROM programmers can not be supported. For the latest type of PROM programmers, contact the manufacturer to confirm whether it can be used for your product. Table 5.
6. Memory Map Figure 6.1 shows memory maps of the MCU and the PROM programmer. 0000016 0000016 Unused area 05FFF16 0600016 05FFF16 0600016 Internal PROM area (40K bytes) Programming area 0FFFF16 1000016 0FFFF16 1000016 OSD ROM area (8K bytes) OSD ROM area 11FFF16 1200016 11FFF16 1200016 Unused area 1FFFF16 1FFFF16 MCU (M37221EAFP) Figure 6.
7. Troubleshooting The table below summarizes errors to be checked carefully before you determine them to be a fault. 7.1 Errors That Occur When Writing to ROM 7.1.1 When Newly Purchased Cause Remedy See page 9 Programming adapter Is the adapter attached to the correct position of the PROM programmer? Is the MCU attached to the correct position? 9 Is the area specification set correctly? 10 Is the correct device selected? 10 PROM programmer The IC socket of the PROM programmer may be stained.
7.2 MCU Does Not Function Normally The program operates normally on the emulator, but when the MCU that has normally been written is attached the same program does not function normally. (1) Is the offset address specified correctly when copying data into the PROM programmer? (2) In the emulator, NOPs are often inserted in the area where the program has not been read, therefore the program happens to appear functioning normally even though it may have gone wild. Check your program again.
Technical Support Communication Sheet Date: / / (Month/Day/Year) To Distributor: Product Information Contact Address Company: Programming adapter: Department: PCA7439 Name: Serial number: Phone: Date of purchase: Fax: Target MCU: E-mail: 1. Symptom: Fails blank check. Cannot write a program. Fails verification. Detail: 2. How often does the problem occur? 3. When did the problem start to occur? Since purchase. Used to work correctly.
