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    <title>topic ERROR: Can not read register 1 (R1) while CPU is running in Kinetis Microcontrollers</title>
    <link>https://community.nxp.com/t5/Kinetis-Microcontrollers/ERROR-Can-not-read-register-1-R1-while-CPU-is-running/m-p/461563#M27661</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Connecting to J-Link...&lt;/P&gt;&lt;P&gt;J-Link is connected.&lt;/P&gt;&lt;P&gt;Firmware: J-Link OpenSDA 2 compiled Oct 13 2015 12:10:56&lt;/P&gt;&lt;P&gt;Hardware: V1.00&lt;/P&gt;&lt;P&gt;S/N: 621000000&lt;/P&gt;&lt;P&gt;Checking target voltage...&lt;/P&gt;&lt;P&gt;Target voltage: 3.30 V&lt;/P&gt;&lt;P&gt;Listening on TCP/IP port 2331&lt;/P&gt;&lt;P&gt;Connecting to target...Connected to target&lt;/P&gt;&lt;P&gt;Waiting for GDB connection...Connected to 127.0.0.1&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x00000000 (Data = 0x20010000)&lt;/P&gt;&lt;P&gt;Target interface speed set to 1000 kHz&lt;/P&gt;&lt;P&gt;Resetting target&lt;/P&gt;&lt;P&gt;Halting target CPU...&lt;/P&gt;&lt;P&gt;...Target halted (PC = 0x000004D8)&lt;/P&gt;&lt;P&gt;R0 = 00000000, R1 = 00000000, R2 = 00000000, R3 = 00000000&lt;/P&gt;&lt;P&gt;R4 = 00000000, R5 = 00000000, R6 = 00000000, R7 = 00000000&lt;/P&gt;&lt;P&gt;R8 = 00000000, R9 = 00000000, R10= 00000000, R11= 00000000&lt;/P&gt;&lt;P&gt;R12= 00000000, R13= 20010000, MSP= 20010000, PSP= 00000000&lt;/P&gt;&lt;P&gt;R14(LR) = FFFFFFFF, R15(PC) = 000004D8&lt;/P&gt;&lt;P&gt;XPSR 01000000, APSR 00000000, EPSR 01000000, IPSR 00000000&lt;/P&gt;&lt;P&gt;CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;Select auto target interface speed (1429 kHz)&lt;/P&gt;&lt;P&gt;Flash breakpoints enabled&lt;/P&gt;&lt;P&gt;Semi-hosting enabled (VectorAddr = 0x08)&lt;/P&gt;&lt;P&gt;Semihosting I/O set to TELNET Client&lt;/P&gt;&lt;P&gt;Downloading 1024 bytes @ address 0x00000000 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16 bytes @ address 0x00000400 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16160 bytes @ address 0x00000410 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16224 bytes @ address 0x00004330 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00008290 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0000C280 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00010270 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00014260 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00018250 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0001C240 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00020230 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00024220 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00028210 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0002C200 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x000301F0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x000341E0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x000381D0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0003C1C0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 2872 bytes @ address 0x000401B0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 8 bytes @ address 0x00040CE8 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 4 bytes @ address 0x00040CF0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 4 bytes @ address 0x00040CF4 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 144 bytes @ address 0x00040CF8 - Verified OK&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x000004D8 (Data = 0xF001B672)&lt;/P&gt;&lt;P&gt;Comparing flash&amp;nbsp;&amp;nbsp; [....................] Done.&lt;/P&gt;&lt;P&gt;Erasing flash&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; [....................] Done.&lt;/P&gt;&lt;P&gt;Programming flash [....................] Done.&lt;/P&gt;&lt;P&gt;Verifying flash&amp;nbsp;&amp;nbsp; [....................] Done.&lt;/P&gt;&lt;P&gt;Resetting target&lt;/P&gt;&lt;P&gt;Halting target CPU...&lt;/P&gt;&lt;P&gt;...Target halted (PC = 0x000004D8)&lt;/P&gt;&lt;P&gt;R0 = 00000000, R1 = 00000000, R2 = 00000000, R3 = 00000000&lt;/P&gt;&lt;P&gt;R4 = 00000000, R5 = 00000000, R6 = 00000000, R7 = 00000000&lt;/P&gt;&lt;P&gt;R8 = 00000000, R9 = 00000000, R10= 00000000, R11= 00000000&lt;/P&gt;&lt;P&gt;R12= 00000000, R13= 20010000, MSP= 20010000, PSP= 00000000&lt;/P&gt;&lt;P&gt;R14(LR) = FFFFFFFF, R15(PC) = 000004D8&lt;/P&gt;&lt;P&gt;XPSR 01000000, APSR 00000000, EPSR 01000000, IPSR 00000000&lt;/P&gt;&lt;P&gt;CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x000004D8 (Data = 0xF001B672)&lt;/P&gt;&lt;P&gt;Starting target CPU...&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 15 (R15) while CPU is running&lt;/P&gt;&lt;P&gt;...Target halted (PC = 0x00000000)&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 0 (R0) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 1 (R1) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 2 (R2) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 3 (R3) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 4 (R4) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 5 (R5) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 6 (R6) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 7 (R7) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 8 (R8) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 9 (R9) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 10 (R10) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 11 (R11) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 12 (R12) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 13 (R13) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 14 (R14) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 15 (R15) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 16 (XPSR) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 17 (MSP) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 18 (PSP) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 24 (PRIMASK) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 25 (BASEPRI) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 26 (FAULTMASK) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 27 (CONTROL) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 32 (FPSCR) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 33 (FPS0) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 34 (FPS1) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 35 (FPS2) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 36 (FPS3) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 37 (FPS4) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 38 (FPS5) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 39 (FPS6) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 40 (FPS7) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 41 (FPS8) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 42 (FPS9) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 43 (FPS10) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 44 (FPS11) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 45 (FPS12) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 46 (FPS13) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 47 (FPS14) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 48 (FPS15) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 49 (FPS16) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 50 (FPS17) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 51 (FPS18) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 52 (FPS19) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 53 (FPS20) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 54 (FPS21) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 55 (FPS22) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 56 (FPS23) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 57 (FPS24) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 58 (FPS25) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 59 (FPS26) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 60 (FPS27) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 61 (FPS28) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 62 (FPS29) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 63 (FPS30) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 64 (FPS31) while CPU is running&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x00000000 (Data = 0x20010000)&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x00000000 (Data = 0x20010000)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;可以編譯，但是寫入時就出現這個，K22F無法正常運作&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Thu, 31 Dec 2015 04:56:13 GMT</pubDate>
    <dc:creator>linwang-wei</dc:creator>
    <dc:date>2015-12-31T04:56:13Z</dc:date>
    <item>
      <title>ERROR: Can not read register 1 (R1) while CPU is running</title>
      <link>https://community.nxp.com/t5/Kinetis-Microcontrollers/ERROR-Can-not-read-register-1-R1-while-CPU-is-running/m-p/461563#M27661</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Connecting to J-Link...&lt;/P&gt;&lt;P&gt;J-Link is connected.&lt;/P&gt;&lt;P&gt;Firmware: J-Link OpenSDA 2 compiled Oct 13 2015 12:10:56&lt;/P&gt;&lt;P&gt;Hardware: V1.00&lt;/P&gt;&lt;P&gt;S/N: 621000000&lt;/P&gt;&lt;P&gt;Checking target voltage...&lt;/P&gt;&lt;P&gt;Target voltage: 3.30 V&lt;/P&gt;&lt;P&gt;Listening on TCP/IP port 2331&lt;/P&gt;&lt;P&gt;Connecting to target...Connected to target&lt;/P&gt;&lt;P&gt;Waiting for GDB connection...Connected to 127.0.0.1&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x00000000 (Data = 0x20010000)&lt;/P&gt;&lt;P&gt;Target interface speed set to 1000 kHz&lt;/P&gt;&lt;P&gt;Resetting target&lt;/P&gt;&lt;P&gt;Halting target CPU...&lt;/P&gt;&lt;P&gt;...Target halted (PC = 0x000004D8)&lt;/P&gt;&lt;P&gt;R0 = 00000000, R1 = 00000000, R2 = 00000000, R3 = 00000000&lt;/P&gt;&lt;P&gt;R4 = 00000000, R5 = 00000000, R6 = 00000000, R7 = 00000000&lt;/P&gt;&lt;P&gt;R8 = 00000000, R9 = 00000000, R10= 00000000, R11= 00000000&lt;/P&gt;&lt;P&gt;R12= 00000000, R13= 20010000, MSP= 20010000, PSP= 00000000&lt;/P&gt;&lt;P&gt;R14(LR) = FFFFFFFF, R15(PC) = 000004D8&lt;/P&gt;&lt;P&gt;XPSR 01000000, APSR 00000000, EPSR 01000000, IPSR 00000000&lt;/P&gt;&lt;P&gt;CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;Select auto target interface speed (1429 kHz)&lt;/P&gt;&lt;P&gt;Flash breakpoints enabled&lt;/P&gt;&lt;P&gt;Semi-hosting enabled (VectorAddr = 0x08)&lt;/P&gt;&lt;P&gt;Semihosting I/O set to TELNET Client&lt;/P&gt;&lt;P&gt;Downloading 1024 bytes @ address 0x00000000 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16 bytes @ address 0x00000400 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16160 bytes @ address 0x00000410 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16224 bytes @ address 0x00004330 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00008290 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0000C280 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00010270 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00014260 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00018250 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0001C240 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00020230 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00024220 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x00028210 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0002C200 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x000301F0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x000341E0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x000381D0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 16368 bytes @ address 0x0003C1C0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 2872 bytes @ address 0x000401B0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 8 bytes @ address 0x00040CE8 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 4 bytes @ address 0x00040CF0 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 4 bytes @ address 0x00040CF4 - Verified OK&lt;/P&gt;&lt;P&gt;Downloading 144 bytes @ address 0x00040CF8 - Verified OK&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x000004D8 (Data = 0xF001B672)&lt;/P&gt;&lt;P&gt;Comparing flash&amp;nbsp;&amp;nbsp; [....................] Done.&lt;/P&gt;&lt;P&gt;Erasing flash&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; [....................] Done.&lt;/P&gt;&lt;P&gt;Programming flash [....................] Done.&lt;/P&gt;&lt;P&gt;Verifying flash&amp;nbsp;&amp;nbsp; [....................] Done.&lt;/P&gt;&lt;P&gt;Resetting target&lt;/P&gt;&lt;P&gt;Halting target CPU...&lt;/P&gt;&lt;P&gt;...Target halted (PC = 0x000004D8)&lt;/P&gt;&lt;P&gt;R0 = 00000000, R1 = 00000000, R2 = 00000000, R3 = 00000000&lt;/P&gt;&lt;P&gt;R4 = 00000000, R5 = 00000000, R6 = 00000000, R7 = 00000000&lt;/P&gt;&lt;P&gt;R8 = 00000000, R9 = 00000000, R10= 00000000, R11= 00000000&lt;/P&gt;&lt;P&gt;R12= 00000000, R13= 20010000, MSP= 20010000, PSP= 00000000&lt;/P&gt;&lt;P&gt;R14(LR) = FFFFFFFF, R15(PC) = 000004D8&lt;/P&gt;&lt;P&gt;XPSR 01000000, APSR 00000000, EPSR 01000000, IPSR 00000000&lt;/P&gt;&lt;P&gt;CFBP 00000000, CONTROL 00, FAULTMASK 00, BASEPRI 00, PRIMASK 00&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x000004D8 (Data = 0xF001B672)&lt;/P&gt;&lt;P&gt;Starting target CPU...&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 15 (R15) while CPU is running&lt;/P&gt;&lt;P&gt;...Target halted (PC = 0x00000000)&lt;/P&gt;&lt;P&gt;Reading all registers&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 0 (R0) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 1 (R1) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 2 (R2) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 3 (R3) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 4 (R4) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 5 (R5) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 6 (R6) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 7 (R7) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 8 (R8) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 9 (R9) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 10 (R10) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 11 (R11) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 12 (R12) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 13 (R13) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 14 (R14) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 15 (R15) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 16 (XPSR) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 17 (MSP) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 18 (PSP) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 24 (PRIMASK) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 25 (BASEPRI) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 26 (FAULTMASK) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 27 (CONTROL) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 32 (FPSCR) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 33 (FPS0) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 34 (FPS1) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 35 (FPS2) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 36 (FPS3) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 37 (FPS4) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 38 (FPS5) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 39 (FPS6) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 40 (FPS7) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 41 (FPS8) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 42 (FPS9) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 43 (FPS10) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 44 (FPS11) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 45 (FPS12) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 46 (FPS13) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 47 (FPS14) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 48 (FPS15) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 49 (FPS16) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 50 (FPS17) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 51 (FPS18) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 52 (FPS19) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 53 (FPS20) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 54 (FPS21) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 55 (FPS22) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 56 (FPS23) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 57 (FPS24) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 58 (FPS25) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 59 (FPS26) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 60 (FPS27) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 61 (FPS28) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 62 (FPS29) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 63 (FPS30) while CPU is running&lt;/P&gt;&lt;P&gt;ERROR: Can not read register 64 (FPS31) while CPU is running&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x00000000 (Data = 0x20010000)&lt;/P&gt;&lt;P&gt;Read 4 bytes @ address 0x00000000 (Data = 0x20010000)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;可以編譯，但是寫入時就出現這個，K22F無法正常運作&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 31 Dec 2015 04:56:13 GMT</pubDate>
      <guid>https://community.nxp.com/t5/Kinetis-Microcontrollers/ERROR-Can-not-read-register-1-R1-while-CPU-is-running/m-p/461563#M27661</guid>
      <dc:creator>linwang-wei</dc:creator>
      <dc:date>2015-12-31T04:56:13Z</dc:date>
    </item>
    <item>
      <title>Re: ERROR: Can not read register 1 (R1) while CPU is running</title>
      <link>https://community.nxp.com/t5/Kinetis-Microcontrollers/ERROR-Can-not-read-register-1-R1-while-CPU-is-running/m-p/461564#M27662</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;The Fig 1 illustrates the normal connection between the OpenSDA Jlink and the FRDM-K22F120.&lt;/P&gt;&lt;P&gt;So I was wondering if you can tell me what the board you use.&lt;/P&gt;&lt;P&gt;&lt;span class="lia-inline-image-display-wrapper" image-alt="2016-01-05_13-59-09.jpg"&gt;&lt;img src="https://community.nxp.com/t5/image/serverpage/image-id/33875i243160B988A51112/image-size/large?v=v2&amp;amp;px=999" role="button" title="2016-01-05_13-59-09.jpg" alt="2016-01-05_13-59-09.jpg" /&gt;&lt;/span&gt;&lt;BR /&gt;Have a great day,&lt;BR /&gt;Ping&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;-----------------------------------------------------------------------------------------------------------------------&lt;BR /&gt;Note: If this post answers your question, please click the Correct Answer button. Thank you!&lt;BR /&gt;-----------------------------------------------------------------------------------------------------------------------&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Tue, 05 Jan 2016 05:59:43 GMT</pubDate>
      <guid>https://community.nxp.com/t5/Kinetis-Microcontrollers/ERROR-Can-not-read-register-1-R1-while-CPU-is-running/m-p/461564#M27662</guid>
      <dc:creator>jeremyzhou</dc:creator>
      <dc:date>2016-01-05T05:59:43Z</dc:date>
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