MB90F3XX/F4XX/F5XX/F8XX/F9XX

Transcription

1 Fujitsu Microelectronics Europe Application Note MCU-AN E-V28 F²MC-16LX FAMILY 16-BIT MICROCONTROLLER MB90F3XX/F4XX/F5XX/F8XX/F9XX BI-ROM PROTOCOL APPLICATION NOTE

2 Revision History Revision History Date Version Issue V2.0 started V2.1 some comments added V2.2 New format V2.3 RAMCode Start Addresses added V2.4 New format, New series added V2.5 New series added V2.6 New series added, Chapter 3 added, Flash-Security added V2.7 New series added V2.8 MB9059x and MB9039x without communication check This document contains 12 pages. MCU-AN E-V Fujitsu Microelectronics Europe GmbH

3 Warranty and Disclaimer Warranty and Disclaimer To the maximum extent permitted by applicable law, Fujitsu Microelectronics Europe GmbH restricts its warranties and its liability for all products delivered free of charge (eg. software include or header files, application examples, target boards, evaluation boards, engineering samples of IC s etc.), its performance and any consequential damages, on the use of the Product in accordance with (i) the terms of the License Agreement and the Sale and Purchase Agreement under which agreements the Product has been delivered, (ii) the technical descriptions and (iii) all accompanying written materials. In addition, to the maximum extent permitted by applicable law, Fujitsu Microelectronics Europe GmbH disclaims all warranties and liabilities for the performance of the Product and any consequential damages in cases of unauthorised decompiling and/or reverse engineering and/or disassembling. Note, all these products are intended and must only be used in an evaluation laboratory environment. 1. Fujitsu Microelectronics Europe GmbH warrants that the Product will perform substantially in accordance with the accompanying written materials for a period of 90 days form the date of receipt by the customer. Concerning the hardware components of the Product, Fujitsu Microelectronics Europe GmbH warrants that the Product will be free from defects in material and workmanship under use and service as specified in the accompanying written materials for a duration of 1 year from the date of receipt by the customer. 2. Should a Product turn out to be defect, Fujitsu Microelectronics Europe GmbH s entire liability and the customer s exclusive remedy shall be, at Fujitsu Microelectronics Europe GmbH s sole discretion, either return of the purchase price and the license fee, or replacement of the Product or parts thereof, if the Product is returned to Fujitsu Microelectronics Europe GmbH in original packing and without further defects resulting from the customer s use or the transport. However, this warranty is excluded if the defect has resulted from an accident not attributable to Fujitsu Microelectronics Europe GmbH, or abuse or misapplication attributable to the customer or any other third party not relating to Fujitsu Microelectronics Europe GmbH. 3. To the maximum extent permitted by applicable law Fujitsu Microelectronics Europe GmbH disclaims all other warranties, whether expressed or implied, in particular, but not limited to, warranties of merchantability and fitness for a particular purpose for which the Product is not designated. 4. To the maximum extent permitted by applicable law, Fujitsu Microelectronics Europe GmbH s and its suppliers liability is restricted to intention and gross negligence. NO LIABILITY FOR CONSEQUENTIAL DAMAGES To the maximum extent permitted by applicable law, in no event shall Fujitsu Microelectronics Europe GmbH and its suppliers be liable for any damages whatsoever (including but without limitation, consequential and/or indirect damages for personal injury, assets of substantial value, loss of profits, interruption of business operation, loss of information, or any other monetary or pecuniary loss) arising from the use of the Product. Should one of the above stipulations be or become invalid and/or unenforceable, the remaining stipulations shall stay in full effect Fujitsu Microelectronics Europe GmbH MCU-AN E-V28

4 Contents Contents REVISION HISTORY... 2 WARRANTY AND DISCLAIMER... 3 CONTENTS INTRODUCTION FLASH MCU BI-ROM PROTOCOL Memory Map Common Pin Settings Commands RAMCode Startaddress EXAMPLES General Communications Check Download (00h) Execute (40h) NOTES Flash-Page FF Flash-Security Feature MCU-AN E-V Fujitsu Microelectronics Europe GmbH

5 Introduction 0 Introduction The F²MC-16LX Flash MCU contains a burn-in ROM (BiROM) program that supports a proprietary protocol to allow download of a user program to on-chip RAM memory (step 1). The user program is then able to manipulate on-chip Flash memory as required (step 2). Two basic serial modes are supported, synchronous serial and asynchronous serial. It is not important to the protocol which serial mode is in use. The below diagram illustrates the context. BI-ROM BI-ROM 990hex 990hex RS232 to PC UART RAM RS232 to PC UART RAM FLASH FLASH 1) Load RAM with LOADER Module 2) Program Flash out of RAM This application note describes the commands, which are supported by the BiROM of the 16LX Flash MCUs in order to generate an own programming environment. Fujitsu Microelectronics Europe GmbH MCU-AN E-V28

6 Chapter 1 Flash MCU BI-ROM Protocol 1 Flash MCU BI-ROM Protocol As already mentioned, two basic serial modes are supported, synchronous serial and asynchronous serial. After reset of the MCU, the mode pins and two port pins select the programming mode respectively. It is not important to the protocol which serial mode is in use. However, communications settings obviously vary: Synchronous 8 data bits, external clock (500kbs max) Asynchronous 8 data bits, 1 stop bit, no parity, baud rate: (mcu clk / 4) / (8 x 13 x 2) 4MHz, 8MHz, 16MHz) Follow the sequences in the examples to download and execute the user program. Once the user program is running, the BiROM is no longer active and all further communication is user defined. To allow compatibility with all devices, it is important that the user program uses the minimum of resources. Therefore, we recommend your program uses the following memory map: 1.1 Memory Map F Variables F Stack F Registers (bank 0) 0190 end of RAM User program code and write buffer (512B max) 1.2 Common Pin Settings Pin Name Logic Level Description QFP100 QFP120 MD2,1,0 110 Programming mode 51,50,49 87,88,89 P00 *1 *2 0 Programming mode (J19/21) *) P01 *1 0 1 Async, 4800, 8bit, 1 stop, no parity Clk Sync, Ext clock (500kbs max) (J19/20) *) Vss - Power supply (J19/25) *) Vcc - Power supply (J19/22) *) *) Pin numbers in brackets refer to the QFP120 Flash-Test-Board (FLASH-EVA2-120P-M13) *1 Check Table 1 which port pins are used MCU-AN E-V Fujitsu Microelectronics Europe GmbH

7 Chapter 1 Flash MCU BI-ROM Protocol *2 Some Flash devices can be used with different external 1.3 Commands Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte n Command 7-0 Address 15-8 Address 7-0 Count 15-8 Count 7-0 Data/Checksum 7-0 Command Address Count Data Checksum Various actions, see table below. Start address of RAM download code Number of bytes to transfer. 1 = 1 byte. Data bytes sent Cumulative sum Commands Description Comment Communication check General communications check Download User program is downloaded to RAM x Execute User program is executed. Address and count is ignored (start address is fixed and depends on device, see table to check details) Note: The MB90F59x and MB90F39x Series do not support the command Communication check. Fujitsu Microelectronics Europe GmbH MCU-AN E-V28

8 Chapter 1 Flash MCU BI-ROM Protocol 1.4 RAMCode Startaddress The following Table lists the fixed RAMCode start address and Used Port Pins for the different Flash microcontroller series. Part number RAM Execution Start address Port Pins MB90F038S 190h P00, P01 MB90F h P60, P61 MB90F h P60, P61 MB90F342(C)A(S) 190h P00, P01 MB90F345(C)A(S) 190h P00, P01 MB90F347(C)A(S) 190h P00, P01 MB90F349(C)A(S) 190h P00, P01 MB90F351/S 190h P00, P01 MB90F352/S 190h P00, P01 MB90F387/S 190h P30, P31 MB90F394H 990h P00, P01 MB90F395H 990h P00, P01 MB90MF h P80, P81 MB90F423GA/GB/GC 190h P00, P01 MB90F428GA/GB/GC 190h P00, P01 MB90F438L/LS 990h P00, P01 MB90F439/S 990h P00, P01 MB90F443G 990h P00, P01 MB90F455/S 190h P30, P31 MB90F456/S 190h P30, P31 MB90F457/S 190h P30, P31 MB90F h P00, P01 MB90F474H/L 190h P80, P81 MB90F h P80, P81 MB90F h P80, P81 MB90F497G 190h P00, P01 MB90F523B 990h P00, P01 MB90F543/G/GS 990h P00, P01 MB90F546G/GS 990h P00, P01 MB90F548G/GS 990h P00, P01 MCU-AN E-V Fujitsu Microelectronics Europe GmbH

9 Chapter 1 Flash MCU BI-ROM Protocol Part number RAM Execution Start address Port Pins MB90F h P00, P01 MB90F553A 990h P00, P01 MB90F562/B 190h P00, P01 MB90F h P00, P01 MB90F574/A 990h P00, P01 MB90F583C/CA 990h P00, P01 MB90F594A/G 990h P00, P01 MB90F591/G 990h P00, P01 MB90F598/G 990h P00, P01 MB90F654A 990h P00, P01 MB90F h P65, P66 MB90F h P00, P01 MB90F h P00, P01 MB90F867/S 190h P00, P01 MB90F897/S 190h P30, P31 MB90F h P00, P01 MB90F h P00, P01 Table 1: RAM start address Fujitsu Microelectronics Europe GmbH MCU-AN E-V28

10 Chapter 1 Flash MCU BI-ROM Protocol Command Responses Byte Command 7-4 Resp 3-0 Resp Status response from MCU (bits 7-4 return bits 7-4 of command byte) Response Description Comment x1 OK x2 Command Error MCU-AN E-V Fujitsu Microelectronics Europe GmbH

11 Chapter 2 EXAMPLES 2 EXAMPLES 2.1 General Communications Check PC 18 MCU 11 Note: The MB90F59x and MB90F39x Series do not support the command Communication check. 2.2 Download (00h) command / address count data chk resp PC E MCU 01 This example downloads 2 data bytes, 01 hex and 02 hex onto RAM location 990 hex. See also the cumulated checksum 9E hex and response from the MCU. 2.3 Execute (40h) command / address count PC 40 xx Xx MCU no response, jump is immediate Fujitsu Microelectronics Europe GmbH MCU-AN E-V28

12 Chapter 3 Notes 3 Notes 3.1 Flash-Page FF When you select the Burn-IN ROM mode for the CPU, and you try to program the upper Flash memory area with code executed in RAM the situation is as follows: In Burn-IN ROM mode the Burn-IN ROM is always visible at FF0000-FFFFFF. So you cannot program the page FF directly. Therefore Bit 3 of the FMCS register is used. Bit 3 of the FMCS register is used as a upper memory enable. To program the page FF, you have to set this bit first. After this the page FF will be mapped to page FE. 3.2 Flash-Security Feature Power-ON Reset or external Reset always will activate the Flash-Security (if available within the MCU-series) To restart the BI-ROM (e.g. in order to upload another kernel) WITHOUT ACTIVATING the FLASH SECURITY two methods can be used: 1) Software-Reset CKSCR = 0xFC; // switch to Main-Clock LPMCR = 0x00; // Software Reset 2) Jump to BI-ROM This needs to know the start-address of the BI-ROM: read addresses 0xFFFFDC..0xFFFFDE Example 90F543 starts at 0xFFFB50: asm("\tjmpp 0xFFFB50"); // Jump to Bi-ROM 90F543G Example 90F387 starts at 0xFFFB80: asm("\tjmpp 0xFFFB80"); // Jump to Bi-ROM 90F387 After the restart all BI-ROM functions are available again, e.g.: PC send 0x18 => MCU answers with 0x11 MCU-AN E-V Fujitsu Microelectronics Europe GmbH