F²MC-8FX FAMILY MB95F310 SERIES. Parallel Programming Reference Solution 8-BIT MICROCONTROLLER APPLICATION NOTE

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1 Fujitsu Microelectronics (Shanghai) Co., Ltd. Application ote MCU-A E-13 F²MC-8FX FAMIL 8-BIT MICROCOTROLLER MB95F310 SERIES Parallel Programming Reference Solution APPLICATIO OTE

2 Revision History Revision History Date Author Change of Records Jacky Zhou V1.0, First Draft Jacky Zhou V1.1, update flowchart to timing in 4.1, Jacky Zhou V1.2, update timing in 4.1, 4.2 Update for Parallel application Jacky Zhou V1.3, Add refer for 2 sample code This manual contains 16 pages. 1. The products described in this manual and the specifications thereof may be changed without prior notice. To obtain up-to-date information and/or specifications, contact your Fujitsu sales representative or Fujitsu authorized dealer. 2. Fujitsu will not be liable for infringement of copyright, industrial property right, or other rights of a third party caused by the use of information or drawings described in this manual. 3. The contents of this manual may not be transferred or copied without the express permission of Fujitsu. 4. The products contained in this document are not intended for use with equipment which require extremely high reliability such as aerospace equipment, undersea repeaters, nuclear control systems or medical equipment for life support. 5. Some of the products described in this manual may be strategic materials (or special technology) as defined by the Foreign Exchange and Foreign Trade Control Law. In such cases, the products or portions theory must not be exported without permission as defined under the law Fujitsu Microelectronics (Shanghai) Co., Ltd. MCU-A E-13 Page 2

3 Contents Contents REVISIO HISTOR... 2 COTETS ITRODUCTIO PARALLEL PROGRAMMIG Overview Features of Parallel Programming Hardware connection DOWLOAD CODE TO TARGET MCU BASIC OPERATIO OF TARGET MCU Command Sending Sequence Data Send or Receive Sequence Erase Flash Write Flash Read Flash ADDITIOAL IFORMATIO APPEDIX List of Figures MCU-A E-13 Page 3

4 Chapter 1 Introduction 1 Introduction This application note describes how to use a code to realize parallel programming in MB95310 Series. This application note describes preparative and basic operation for parallel programming. MCU-A E-13 Page 4

5 Chapter 2 Parallel Programming 2 Parallel Programming 2.1 Overview To improve the program performance, adopt 8-bit parallel interface instead of 1-line UART interface. To program a target MCU, the Programmer should erase/write/read flash of Target MCU. To parallel program, for Programmer, need send command of erase/write/read to Target MCU, and send/receive data to/from Target MCU; for Target MCU, need receive command of erase/write/read from Programmer, receive/send data from/to Programmer, and erase/write/read its own flash, for that, a code must run in RAM of Target MCU. The code includes: Receive Flash Erase/Write/Read command. Receive/send data from/to programmer. SLEX/WEX/OEX signal detection and related actions. RD output control. Write/Read/Erase Flash. 2.2 Features of Parallel Programming Parallel interface Faster program speed, performance as below Table 2-1: Performance of Parallel Programming Action Time Comment Erase 2.18S Erase 60K byte and write 4 byte VR (1000H FFFFH) Write 1 byte 328uS Send 5 byte write command, then write 1 byte Write byte 3.56S 1000H FFB0H Read 1 byte 310uS Send 5 byte read command, then read 1 byte Read 60K byte 1.94S 1000H -- FFFFH MCU-A E-13 Page 5

6 Chapter 2 Parallel Programming 2.3 Hardware connection To realize parallel programming, part of connection between Programmer and Target MCU is fixed, which shows as Figure 2-1. RSTX RSTX Programmer MB95F100 GD OEX SLEX GD P40 P41 Target MCU MB95F310 Series WEX P42 RD P43 D7~D0 P0 MB95F100 MB95F310 Series Figure 2-1: Connection between Programmer and Target MCU MCU-A E-13 Page 6

7 Chapter 2 Parallel Programming The Pin assignment of Target MCU is as below: Table 2-2: Pin assignment of Target MCU Pin Direction Function GD RSTX Input Power supply (GD) Reset P40 Input Programmer set OEX L to Target MCU before read data P41 Input Programmer set SLEX L to Target MCU before send command P42 Input Programmer set WEX L to Target MCU before send Write Data P43 Output Set RD L to Programmer after Receive command/data or Send data P0 Input/Output Receive/Send Data from/to Programmer For communicating with Target MCU, some pins of Programmer must be assigned to match pins of Target MCU. In this way, the HW connection is prepared, and then Programmer can control Target MCU to realize parallel programming. MCU-A E-13 Page 7

8 Chapter 3 Download Code to Target MCU 3 Download Code to Target MCU Preparative for parallel programming For parallel programming, a code must run in RAM of Target MCU, which accepts command and data from Programmer, and then erase flash, write data to flash of Target MCU, or read out data and send back to Programmer. So before Programmer can erase/write/read flash of Target MCU, 4 steps have to be done. 1. UART Programmer downloads Code to Flash of Target MCU The Code can be downloaded to Flash of Target MCU by UART programmer. For detail of code which is downloaded to Flash of Target MCU, refer to Parallel_Slaver.rar. 2. Let Target MCU to run the Code When power on, Target MCU starts to run the Code. 3. When Target MCU runs the Code: it copies the code from flash of Target MCU to RAM of Target MCU 4. After coping, Target MCU jumps to RAM to execute the code (run in RAM, target MCU can erase/write/read its own flash arbitrarily) And then, Programmer can erase/write/read flash of Target MCU by sending command. It means when the code runs in RAM of Target MCU, the preparative for the parallel programming is finished. MCU-A E-13 Page 8

9 Chapter 4 Basic Operation of Target MCU 4 Basic Operation of Target MCU For realize function of parallel programming, 3 basic operations are must: erase/write/read flash of Target MCU. When the code runs in RAM of Target MCU, these 3 basic operations can be implement by receiving and implementing command from Programmer. The following shows how the Programmer controls Target MCU to erase/write/read. For detail of code which the Programmer controls Target MCU, refer to Parallel_Master.7z. 4.1 Command Sending Sequence To send command to Target MCU, special format of command must be adopted by Programmer, the special format is shown in figure 4-1. D1(Byte) D2(Byte) D3(Byte) D4(Byte) D5(Byte) Command AddressH AddressL LengthH LengthL Figure 4-1: Format of Command send And Checksum = D1+D2+D3+D4+D5, which is used to check if command is received by Target MCU correctly, for how to use checksum, refer to 4.3 Erase Flash, 4.4 Write Flash, 4.5 Read Flash. Dn: D1, D2, D3, D4 or D5 For Erase Command (0x55), D1 = 0x55 For Read Command (0x18), D1 = 0x18 For Write Command (0x81), D1 = 0x81. To send one byte to Target MCU, must set PORT output, the timing of Erase Command send is shown in figure 4-2. Figure 4-2: Timing of Erase Command send MCU-A E-13 Page 9

10 Chapter 4 Basic Operation of Target MCU The timing of Read Command send is shown in figure 4-3. Figure 4-3: Timing of Read Command send The timing of Write Command send is shown in figure 4-4. Figure 4-4: Timing of Write Command send MCU-A E-13 Page 10

11 Chapter 4 Basic Operation of Target MCU 4.2 Data Send or Receive Sequence Here shows Programmer how to send/receive Data to/from Target MCU. To send one byte data to Target MCU, Programmer must set PORT output, the timing is shown in figure 4-5. Figure 4-5: Timing of send data To receive one byte data from Target MCU, Programmer must set PORT input; the timing is shown in figure 4-6. Figure 4-6: Timing of receive data MCU-A E-13 Page 11

12 Chapter 4 Basic Operation of Target MCU 4.3 Erase Flash Programmer sends Erase Flash command to Target MCU, and then Target MCU implement the command to Erase flash. Figure 4-7 shows Programmer how to control Target MCU to Erase Flash. Start Send Erase Command Check Sum OK? Read Erase Status Erase OK? Time Out? Erase Fail End Figure 4-7: Flow Chart of Erase Flash MCU-A E-13 Page 12

13 Chapter 4 Basic Operation of Target MCU 4.4 Write Flash Programmer sends Write Flash command to Target MCU, and then Target MCU implement the command to Write flash. Figure 4-8 shows Programmer how to control Target MCU to Write Flash. Start Send Write Command Check Sum OK? Send Write Data Write OK? Time Out? Write all Data? Write Fail End Figure 4-8: Flow Chart of Write Flash MCU-A E-13 Page 13

14 Chapter 4 Basic Operation of Target MCU 4.5 Read Flash Programmer sends Read Flash command to Target MCU, and then Target MCU implement the command to Read flash. Figure 4-9 shows Programmer how to control Target MCU to Read Flash. Start Send Read Command Check Sum OK? Read Data Read OK? Time Out? Read all Data? Read Fail End Figure 4-9: Flow Chart of Read Flash MCU-A E-13 Page 14

15 Chapter 5 Additional Information 5 Additional Information For more Information on FUJITSU microelectronics products, visit the following web site: To download sample project about Programmer, visit the following web site: MCU-A E-13 Page 15

16 Chapter 6 Appendix 6 Appendix 6.1 List of Figures Figure 2-1: Connection between Programmer and Target MCU... 6 Figure 4-1: Format of Command send... 9 Figure 4-2: Timing of Erase Command send... 9 Figure 4-3: Timing of Read Command send Figure 4-4: Timing of Write Command send Figure 4-5: Timing of send data Figure 4-6: Timing of receive data Figure 4-7: Flow Chart of Erase Flash Figure 4-8: Flow Chart of Write Flash Figure 4-9: Flow Chart of Read Flash MCU-A E-13 Page 16