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mmc_m163.bas+hex.zip
avr_sd1_pcb_asy_shot.jpg
M163 SD,MMC Interface
 The AVR_SD3 is a very compact 3.3v AVR controller board with an SD/MMC card socket. It can work with most 40 pin AVR-L mcus such as the can use a Mega323L, Mega163L, Mega16L, Mega32L or a AT90LS8535 .Other “L” (low power) series AVRs can also be used with 40 pin carrier boards. The board has a standard Atmel 6 pin ISP programming header. It can be programmed using Atmels serial ISP hardware which is also compatible with the BascomAVR compiler. Printed circuit board layout [img:avr-sd1-pcb-bot.jpg,align=,width=590,height=253,vspace=0,hspace=0,border=0] ● Parts List 7 - 4.7k resistor (SMD) R1-R7 1 - 330 ohm resistor (SMD) R8 5 - 0.1uf capacitors (SMD) 1 - 1m resistor (SMD) R9 1 - 0.1uf (0r 1uf) ceramic cap C8 1 - 100 ohm resistor R10 1 - 10uf capacitor (radial) C3 1 - 0.1 or 1.0 uf capacitor (radial) C2 1 - LED (SMD) 1 - 4mhz resonator X1 1 - LM2937 3.3v regulator 220case 1 - ATMEGA163L or optional ATMEGA32L mcu 1 - Max3232 (or equiv) 16 pin SOIC 1 - Ramtron 64kbit I2C FRAM or 24LC256 eeprom 1 - DB9F RS232 female connector 1 - SD9 SD/MMC socket (top mount) 1 - Momentary reset switch ( normally open) 1- Printed circuit board Optional: 1N4001 diode for reverse voltage protection Misc: header pins ● SD-MMC 메모리 카드 인터페이스 회로도 [img:avr-sd1-sch.jpg,align=,width=591,height=782,vspace=0,hspace=0,border=0] 1. Mount and solder all SMD resistors and capacitors. C1-C7 are 0.1uf SMD caps, R1-R7 are 4.7k resistors, R8 is 330 ohm. Note: C4-C7 mount on the backside of the pcb 2. Carefully align and solder the I2C FRAM (mounted on the backside of the pcb). Make sure to orient the SOIC correctly! Use very little solder! 3. Do the same with the IC3232 SOIC (topside of pcb) 4. Solder the LED. The square pad on the pcb is + and the longer lead of the LED is the anode (+) 5. Mount and solder the 3.3v regulator and. Make sure that the metal TAB faces the outer edge of the pcb. 6. Orient and mount the 10uf and 1uf (or .1uf) radial caps. The longer lead is +. Square pads on the pcb are + 7. Mount the reset switch with the button facing outward and also mount the 10Mhz resonator 8. Carefully align and solder the SD/MMC socket to the top side of the pcb. Make sure that the two plastic bosses mate with the two holes on The pcb. Also tack solder the "ears" for added support. 9. Mount and solder the DB9F and 28 pin IC socket in place. 10. Optionally, solder any header pins that you plan to use. 11. DOUBLE CHECK ALL YOUR WORK. Inspect for solder bridges and cold solder joints COMPSys AVR-M controller board MMC test program - May 2002 ========================================================= The MMC163B1.BAS when programmed on the AVR-M controller board and used with an MMC card wiill test the read/write/erase functions. Ranjit Diol rsdiol@compsys1.com ' Program: MMC.BAS written using Bascom-AVR ver 1.11.6.66 ' Basic program to interface with a MMC module using the SPI protocol. ' ' BETA CODE ' **** NOT FOR COMMERCIAL USE ***** ' Ver. 0.0.1 May, 2002 Revised 2005 ' ' Project Reference: MMC-M163 ' MCU: Atmel Mega163 ' Software: Bascom-AVR ver 1.11.6.66 ' Atmel Programmer: STK500 development board set at 3.3v. ' ISP and terminal output ' ' Note: By changing the XTAL config to 4Mhz it can be used with the AVR-M boards ' ' Initial Date: May 18, 2002 ' Projected Completion Date: Unknown ' ' Author: Ranjit Diol ' rsdiol@compsys1.com ' http://www.compsys1.com/workbench ' '*************************************************************** ' (c) COMPSys, 2002 ' All Rights Reserved '*************************************************************** ' ' DISCLAIMER: This file is being released as non-commericial ' software. It is being provided "AS IS", neither the author, ' nor COMPSys shall be held liable for any damages caused ' by its use either directly or indirectly in any form or manner. ' '=============================================================== ' 'Brief: The MMC is a 3volt part therefore all data lines ' must be conditioned if interfacing with a 5v mcu. ' Or, a 3.3v MCU can be used such as the AT103L or the AT90LS8535 ' 'IMPORTANT NOTE: ' In SPI mode the MMC's minimum block size is 512 bytes ' therefore data has to be accumulated first either in an eeprom ' or in memory before sending it out as a chunk of 512 bytes. ' ' MMC pins in SPI mode: ' Pin1:ChipSelect(SS),Pin2:MMC input(MOSI),Pin3:GND,Pin4:3V+, ' Pin5:Clock(SCK), Pin6:GND, Pin7:MMC output(MISO) ' M163 pins: ' Portb.4 SS ' Portb.5 MISO ' Portb.6 MOSI ' Portb.7 SCK ' ' '============================================================== $regfile = "m32def.dat" 'MCU '$crystal = 3690000 'Set for STK500 $crystal = 4000000 'For AVR-M controller board 'SERIAL I/O 'Aux RS232 port on STK500 used 'Hardware RX,TX pins PD0,PD1 used 'Baud 19200 $baud = 19200 'Configure for software SPI ' MISO MOSI SS SCK Config Spi = Soft , Din = Pinb.6 , Dout = Portb.5 , Ss = Portb.4 , Clock = Portb.7 Ddrb = &B10111111 'Constants Const Msbl = 0 Const Msbh = 1 Const Dly = 2 Const Bits8 = 8 Const Bits16 = 16 Const Bits32 = 32 'Variables Dim Res(16) As Byte Dim Indat(512) As Byte 'Memory buffer for temp storage. Dim Dat As Byte Dim Resp As Byte Dim Resp2 As Word Dim I As Word Dim J As Word Dim X As Byte Dim Y As Byte Dim K As Byte Dim Bout As Byte Dim Addr1 As Byte Dim Addr2 As Byte Dim Addr3 As Byte Dim Addr4 As Byte Dim Addr As Long Dim Saddr As Long Dim Eaddr As Long Dim W_key As String * 1 Dim Maddr1 As Long Dim Maddr2 As Long Dim Chkres As Byte Dim Rbytes As Word Dim Chr As String * 1 'Aliases Cs Alias Portb.4 Clk Alias Portb.7 Miso Alias Pinb.6 'inp Mosi Alias Portb.5 'out 'out 'Declarations Declare Sub Mprint Declare Sub Minit Declare Sub Mstatus 'Declare Sub Mwrite(byval Bout As Byte , Byval Addr As Long ) Declare Sub Mwrite(byval Maddr1 As Long , Byval Maddr2 As Long) Declare Sub Mread(byval Rbytes As Word , Byval Addr As Long ) Declare Sub Merase(byval Saddr As Long , Byval Eaddr As Long) Declare Sub Getk Declare Sub Chkresp(byval Chkres As Byte) Declare Sub Ld_array Waitms 300 Spiinit '******** MAIN PROGRAM ************* Main: 'First Ascii Character Print " MMC Simple Test Program" Print " written in BascomAVR 1.11.76" Print "COMPSys http://www.compsys1.com/workbench" Print " (c) COMPSys 2005" Print "=========================================" Print "This program will initialize and then" Print "erase a portion of the MMC and will then" Print "write ASCII characters.Finally, it will" Print "read the characters stored" Print "DO NOT USE A CARD WITH IMPORTANT DATA ON IT!" Gosub Getk Print "Initializing MMC" 'Initialize the MMCC Minit Print "Erase from &H0000 to &H01FF" Gosub Getk 'Call Erase Subroutine Enter Startaddr , Endaddr Merase &H00000000 , &H000001FF Print "Erased! Now read the erased portion" Gosub Getk Print "Reading:" 'Call read sub from 512 from address are put in array INDAT Mread 512 , &H00000000 For I = 1 To 512 K = Indat(i) Print K; Next I Print "Fill &H0000 to &H01FF with ASCII characters" Gosub Getk 'Load the ASCII chars into the array Ld_array 'call write subroutine as: maddr1, maddr2 32bit addresses 'data which is loaded in the INDAT array is written Mwrite &H00000000 , &H000001FF Print "512 Chars written, now read them back" Gosub Getk 'Call read sub from 512 from address are put in array INDAT Mread 512 , &H00000000 'The array is now loaded 'Call print sub print 512 bytes stored in INDAT array Mprint Print "End of MMC test" Xloop: Set Cs Shiftout Mosi , Clk , Dat , Msbl Endloop: Goto Endloop End 'end program '************ END OF PROGRAM ************** '======= SUB ROUTINES AND FUNCTIONS ======= '*** INITIALIZATION OF MMC *** Sub Minit Set Cs Dat = &HFF For I = 1 To 10 Shiftout Mosi , Clk , Dat , Msbl Next I Resp = 255 Reset Cs Cmd0: Dat = &H40 Shiftout Mosi , Clk , Dat , Msbl Addr = &H00000000 Shiftout Mosi , Clk , Addr , Msbl Dat = &H95 Shiftout Mosi , Clk , Dat , Msbl Chkresp &H01 'For debugging 'Lcd "C0:" ; Hex(resp) 'Initialized Set Cs Waitms 50 Reset Cs Dat = &HFF 'If it does not initialize correctly 'it will hang in the following loop Cmd1: While Resp <> &H00 Set Cs Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Reset Cs Dat = &H41 Shiftout Mosi , Clk , Dat , Msbl Addr = 0 Shiftout Mosi , Clk , Addr , Msbl Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Wend Dat = &HFF Set Cs 'For debugging 'Lcd "C1:" ; Hex(resp) Print "MMC initialized" End Sub '**** READ routine assumes ADDR uses Status subroutine ***** Sub Mread(byval Addr As Long) Set Cs Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Reset Cs Dat = &H51 Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Addr , Msbl Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl 'While Resp <> 0 'Shiftin Miso , Clk , Resp , Msbl 'Wend Chkresp &H00 'While Resp <> &HFE 'Shiftin Miso , Clk , Resp , Msbl 'Wend Chkresp &HFE 'For debugging 'Lcd Hex(resp) For I = 1 To 512 Shiftin Miso , Clk , Resp , Msbl Indat(i) = Resp 'For debugging 'Lcd Hex(resp); Next I Shiftin Miso , Clk , Resp , Msbl Shiftin Miso , Clk , Resp , Msbl Set Cs Mstatus End Sub '****Block Start Tag / End Tag and ERASE **** Sub Merase(byval Saddr As Long , Byval Eaddr As Long) 'Erase first 1024 bytes 'Block START TAG Cmd32: Set Cs Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Reset Cs Dat = &H60 Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Saddr , Msbl Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Chkresp &H00 'Block END TAG Cmd33: Set Cs Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Reset Cs Dat = &H61 Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Eaddr , Msbl Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Chkresp &H00 'ERASE SELECTED BLOCK Cmd38: Set Cs Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Reset Cs Dat = &H66 Shiftout Mosi , Clk , Dat , Msbl Addr = 0 Shiftout Mosi , Clk , Addr , Msbl Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Chkresp &H00 Mstatus End Sub '** WRITE Routine assumes ADDR, BOUT uses Status subroutine ** 'Sub Mwrite(byval Bout As Byte , Byval Addr As Long) Sub Mwrite(byval Maddr1 As Long , Byval Maddr2 As Long) Cmd24: Set Cs Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Reset Cs Dat = &H58 Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Maddr1 , Msbl Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Chkresp &H00 'For debugging 'Lcd "C24:" ; Hex(resp) 'Send data token Dat = &HFE Shiftout Mosi , Clk , Dat , Msbl 'For I = Maddr1 To Maddr2 For I = 1 To 512 Dat = Indat(i) Shiftout Mosi , Clk , Dat , Msbl Next I Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl 'If Y = &H05 write is a success Y = Resp And &H0F 'If Resp = 0 the MMC is busy Shiftin Miso , Clk , Resp , Msbl Chkresp &H00 'Lowerline 'For debugging 'Lcd "Wr:" ; Hex(y) Set Cs Mstatus End Sub 'Get MMC Status Sub Mstatus Cmd13: Set Cs Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp , Msbl Reset Cs Dat = &H4D Shiftout Mosi , Clk , Dat , Msbl Addr = 0 Shiftout Mosi , Clk , Addr , Msbl Dat = &HFF Shiftout Mosi , Clk , Dat , Msbl Shiftout Mosi , Clk , Dat , Msbl Shiftin Miso , Clk , Resp2 , Msbl 'For debugging 'lcd "Status:" ; Hex(resp2) Set Cs 'Return End Sub 'Display data in the array Sub Mprint For I = 1 To 512 Dat = Indat(i) Chr = Chr(dat) Print Chr ; Next End Sub Sub Getk Print "Press any key to continue...." W_key = Waitkey() End Sub Sub Chkresp(byval Chkres As Byte) 'NOTE:If the addr is incorrect it will 'never exit the following loop! 'You may want to loop it approx 255 times 'and then if it fails go to an error routine While Resp <> Chkres Shiftin Miso , Clk , Resp , Msbl Wend End Sub Sub Ld_array K = &H21 For I = 1 To 512 Indat(i) = K Incr K If K > &H7E Then K = &H21 Next I End Sub '=============== ' END OF CODE '=============== '*************************************************************** ' (c) COMPSys, 2002 ' All Rights Reserved '*************************************************************** ' DISCLAIMER: This file is being released as non-commericial ' software. It is being provided "AS IS", neither the author, ' nor COMPSys shall be held liable for any damages caused ' by its use either directly or indirectly in any form or manner. '================================================ |
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