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@ -22,7 +22,7 @@
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* THE SOFTWARE.
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*/
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#ifdef ARDUINO_RASPBERRY_PI_PICO
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#ifdef ARDUINO_ARCH_RP2040
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#include "SdFat_Adafruit_Fork.h"
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#include "pio_usb.h"
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@ -34,6 +34,12 @@
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#define USBHOST_RHPORT 1
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// Workaround force F_CPU to 240MHz for programming RP2350 due to handshake
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// timeout
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#if F_CPU != 120000000L && F_CPU != 240000000L
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#error "F_CPU must be set to either 120Mhz or 240Mhz for pio-usb host"
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#endif
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Adafruit_TestBed_Brains Brain;
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volatile bool LCD_semaphore = false;
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@ -508,6 +514,209 @@ bool Adafruit_TestBed_Brains::SD_begin(uint32_t max_clock) {
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//--------------------------------------------------------------------+
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// LCD
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//--------------------------------------------------------------------+
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#define NOP1 __asm volatile("nop");
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#define NOP2 NOP1 NOP1
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#define NOP3 NOP2 NOP1
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#define NOP4 NOP2 NOP2
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#define NOP5 NOP4 NOP1
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#define NOP6 NOP4 NOP2
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#define NOP7 NOP4 NOP3
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#define NOP8 NOP4 NOP4
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#define NOP9 NOP8 NOP1
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#define NOP10 NOP8 NOP2
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#define NOP11 NOP8 NOP3
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#define NOP12 NOP8 NOP4
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#define NOP13 NOP8 NOP5
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#define NOP14 NOP8 NOP6
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#define NOP15 NOP8 NOP7
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#define NOP16 NOP8 NOP8
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#define NOP17 NOP16 NOP1
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#define NOP18 NOP16 NOP2
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#define NOP19 NOP16 NOP3
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#define NOP20 NOP16 NOP4
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#define NOP21 NOP16 NOP5
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#define NOP22 NOP16 NOP6
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#define NOP23 NOP16 NOP7
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#define NOP24 NOP16 NOP8
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#define NOP25 NOP16 NOP9
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#define NOP26 NOP16 NOP10
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#define NOP27 NOP16 NOP11
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#define NOP28 NOP16 NOP12
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#define NOP29 NOP16 NOP13
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#define NOP30 NOP16 NOP14
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#define NOP31 NOP16 NOP15
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#define NOP32 NOP16 NOP16
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#define NOP33 NOP32 NOP1
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#define NOP34 NOP32 NOP2
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#define NOP35 NOP32 NOP3
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#define NOP36 NOP32 NOP4
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#define NOP37 NOP32 NOP5
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#define NOP38 NOP32 NOP6
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#define NOP39 NOP32 NOP7
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#define NOP40 NOP32 NOP8
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#define NOP41 NOP32 NOP9
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#define NOP42 NOP32 NOP10
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#define NOP43 NOP32 NOP11
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#define NOP44 NOP32 NOP12
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#define NOP45 NOP32 NOP13
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#define NOP46 NOP32 NOP14
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#define NOP47 NOP32 NOP15
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#define NOP48 NOP32 NOP16
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#define NOP49 NOP48 NOP1
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#define NOP50 NOP48 NOP2
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#define NOP51 NOP48 NOP3
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#define NOP52 NOP48 NOP4
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#define NOP53 NOP48 NOP5
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#define NOP54 NOP48 NOP6
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#define NOP55 NOP48 NOP7
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#define NOP56 NOP48 NOP8
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#define NOP57 NOP48 NOP9
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#define NOP58 NOP48 NOP10
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#define NOP59 NOP48 NOP11
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#define NOP60 NOP48 NOP12
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#define NOP61 NOP48 NOP13
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#define NOP62 NOP48 NOP14
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#define NOP63 NOP48 NOP15
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#define NOP64 NOP48 NOP16
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#define NOP65 NOP64 NOP1
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#define NOP66 NOP64 NOP2
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#define NOP67 NOP64 NOP3
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#define NOP68 NOP64 NOP4
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#define NOP69 NOP64 NOP5
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#define NOP70 NOP64 NOP6
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#define NOP71 NOP64 NOP7
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#define NOP72 NOP64 NOP8
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#define NOP73 NOP64 NOP9
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#define NOP74 NOP64 NOP10
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#define NOP75 NOP64 NOP11
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#define NOP76 NOP64 NOP12
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#define NOP77 NOP64 NOP13
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#define NOP78 NOP64 NOP14
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#define NOP79 NOP64 NOP15
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#define NOP80 NOP64 NOP16
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#define NOP81 NOP80 NOP1
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#define NOP82 NOP80 NOP2
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#define NOP83 NOP80 NOP3
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#define NOP84 NOP80 NOP4
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#define NOP85 NOP80 NOP5
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#define NOP86 NOP80 NOP6
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#define NOP87 NOP80 NOP7
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#define NOP88 NOP80 NOP8
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#define NOP89 NOP80 NOP9
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#define NOP90 NOP80 NOP10
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#define NOP91 NOP80 NOP11
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#define NOP92 NOP80 NOP12
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#define NOP93 NOP80 NOP13
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#define NOP94 NOP80 NOP14
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#define NOP95 NOP80 NOP15
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#define NOP96 NOP80 NOP16
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#define NOP97 NOP96 NOP1
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#define NOP98 NOP96 NOP2
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#define NOP99 NOP96 NOP3
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#define NOP100 NOP96 NOP4
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#define NOP101 NOP100 NOP1
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#define NOP102 NOP100 NOP2
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#define NOP103 NOP100 NOP3
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#define NOP104 NOP100 NOP4
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#define NOP105 NOP100 NOP5
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#define NOP106 NOP100 NOP6
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#define NOP107 NOP100 NOP7
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#define NOP108 NOP100 NOP8
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#define NOP109 NOP100 NOP9
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#define NOP110 NOP100 NOP10
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#define NOP111 NOP100 NOP11
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#define NOP112 NOP100 NOP12
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#define NOP113 NOP100 NOP13
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#define NOP114 NOP100 NOP14
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#define NOP115 NOP100 NOP15
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#define NOP116 NOP100 NOP16
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#define NOP117 NOP116 NOP1
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#define NOP118 NOP116 NOP2
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#define NOP119 NOP116 NOP3
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#define NOP120 NOP116 NOP4
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#define NOP121 NOP116 NOP5
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#define NOP122 NOP116 NOP6
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#define NOP123 NOP116 NOP7
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#define NOP124 NOP116 NOP8
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#define NOP125 NOP116 NOP9
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#define NOP126 NOP116 NOP10
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#define NOP127 NOP116 NOP11
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#define NOP128 NOP116 NOP12
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#define NOP129 NOP128 NOP1
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#define NOP130 NOP128 NOP2
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#define NOP131 NOP128 NOP3
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#define NOP132 NOP128 NOP4
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#define NOP133 NOP128 NOP5
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#define NOP134 NOP128 NOP6
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#define NOP135 NOP128 NOP7
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#define NOP136 NOP128 NOP8
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#define NOP137 NOP128 NOP9
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#define NOP138 NOP128 NOP10
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#define NOP139 NOP128 NOP11
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#define NOP140 NOP128 NOP12
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#define NOP141 NOP128 NOP13
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#define NOP142 NOP128 NOP14
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#define NOP143 NOP128 NOP15
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#define NOP144 NOP128 NOP16
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#define NOP145 NOP144 NOP1
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#define NOP146 NOP144 NOP2
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#define NOP147 NOP144 NOP3
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#define NOP148 NOP144 NOP4
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#define NOP149 NOP144 NOP5
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#define NOP150 NOP144 NOP6
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#define NOP151 NOP144 NOP7
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#define NOP152 NOP144 NOP8
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#define NOP153 NOP144 NOP9
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#define NOP154 NOP144 NOP10
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#define NOP155 NOP144 NOP11
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#define NOP156 NOP144 NOP12
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#define NOP157 NOP144 NOP13
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#define NOP158 NOP144 NOP14
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#define NOP159 NOP144 NOP15
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#define NOP160 NOP144 NOP16
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#define NOP161 NOP160 NOP1
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#define NOP162 NOP160 NOP2
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#define NOP163 NOP160 NOP3
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#define NOP164 NOP160 NOP4
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#define NOP165 NOP160 NOP5
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#define NOP166 NOP160 NOP6
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#define NOP167 NOP160 NOP7
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#define NOP168 NOP160 NOP8
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#define NOP169 NOP160 NOP9
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#define NOP170 NOP160 NOP10
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#define NOP171 NOP160 NOP11
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#define NOP172 NOP160 NOP12
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#define NOP173 NOP160 NOP13
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#define NOP174 NOP160 NOP14
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#define NOP175 NOP160 NOP15
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#define NOP176 NOP160 NOP16
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#define NOP177 NOP176 NOP1
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#define NOP178 NOP176 NOP2
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#define NOP179 NOP176 NOP3
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#define NOP180 NOP176 NOP4
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#define NOP181 NOP176 NOP5
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#define NOP182 NOP176 NOP6
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#define NOP183 NOP176 NOP7
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#define NOP184 NOP176 NOP8
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#define NOP185 NOP176 NOP9
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#define NOP186 NOP176 NOP10
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#define NOP187 NOP176 NOP11
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#define NOP188 NOP176 NOP12
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#define NOP189 NOP176 NOP13
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#define NOP190 NOP176 NOP14
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#define NOP191 NOP176 NOP15
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#define NOP192 NOP176 NOP16
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#define NOP193 NOP192 NOP1
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#define NOP194 NOP192 NOP2
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#define NOP195 NOP192 NOP3
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#define NOP196 NOP192 NOP4
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#define NOP197 NOP192 NOP5
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#define NOP198 NOP192 NOP6
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#define NOP199 NOP192 NOP7
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#define NOP200 NOP192 NOP8
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#define _NOP_COUNT(n) NOP##n
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#define NOP_COUNT(n) _NOP_COUNT(n)
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void __no_inline_not_in_flash_func(Adafruit_TestBed_Brains::setColor)(
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uint32_t color) {
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@ -548,53 +757,69 @@ void __no_inline_not_in_flash_func(Adafruit_TestBed_Brains::setColor)(
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uint32_t const isr_context = save_and_disable_interrupts();
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// RP2040 is 120 MHz, 120 cycle = 1us = 1000 ns
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// Neopixel is 800 KHz, 1T = 1.25 us = 150 nop
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/* Neopixel is 800 KHz, 1T = 1.25 us = 150 nop (120Mhz), 300 nop (240Mhz)
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- T1H = 0.8 us, T1L = 0.45 us
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- T0H = 0.4 us, T0L = 0.85 us
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If F_CPU is 120 MHz: 120 nop = 1us -> 1 nop = 8.33 ns
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- T1H = 0.8 us = 96 nop, T1L = 0.45 us = 54 nop
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- T0H = 0.4 us = 48 nop, T0L = 0.85 us = 102 nop
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If F_CPU is 240 MHz: 240 nop = 1us -> 1 nop = 4.17 ns
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- T1H = 0.8 us = 192 nop, T1L = 0.45 us = 108 nop
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- T0H = 0.4 us = 96 nop, T0L = 0.85 us = 204 nop
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Due to overhead the number of NOP is actually smaller, also M33 run faster
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(higher IPC) therefore these are hand tuned,
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*/
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#if defined(ARDUINO_RASPBERRY_PI_PICO)
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// value for rp2040 at 120MHz
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#define T1H_CYCLE 90
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#define T1L_CYCLE 39
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#define T0H_CYCLE 42
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#define T0L_CYCLE 84
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#define LOOP_OVERHEAD_CYCLE 10 // overhead for if/else and loop
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#elif defined(ARDUINO_RASPBERRY_PI_PICO_2)
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// value for rp2350 at 120MHz
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#define T1H_CYCLE 190
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#define T1L_CYCLE 90
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#define T0H_CYCLE 88
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#define T0L_CYCLE 180
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#define LOOP_OVERHEAD_CYCLE 5
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#endif
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while (1) {
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if (p & bitMask) {
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// T1H 0,8 us = 96 - 1 = 95 nop
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// T1H 0.8 us = 96 nop (without overhead)
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sio_hw->gpio_set = pinMask;
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__asm volatile("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;");
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NOP_COUNT(T1H_CYCLE);
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#if F_CPU == 240000000L
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NOP_COUNT(T1H_CYCLE);
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#endif
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// T1L 0,45 = 54 - 10 (ifelse) - 5 (overhead) = 44 nop
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// T1L 0.45 = 54 - 10 (ifelse) - 5 (overhead) = 44 nop
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sio_hw->gpio_clr = pinMask;
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__asm volatile("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop; nop;");
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NOP_COUNT(T1L_CYCLE);
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#if F_CPU == 240000000L
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NOP_COUNT(T1L_CYCLE);
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#endif
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} else {
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// T0H 0,4 us = 48 - 1 = 47 nop
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// T0H 0.4 us = 48 cycles
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|
sio_hw->gpio_set = pinMask;
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|
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|
__asm volatile("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
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|
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|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
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|
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|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
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|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop;");
|
|
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|
|
NOP_COUNT(T0H_CYCLE);
|
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|
|
|
#if F_CPU == 240000000L
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|
|
NOP_COUNT(T0H_CYCLE);
|
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|
|
|
#endif
|
|
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|
|
|
|
// T0L 0.85 us = 102 - 10 (ifelse) - 5 (overhead) = 87 nop
|
|
|
|
|
sio_hw->gpio_clr = pinMask;
|
|
|
|
|
__asm volatile("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
|
|
|
"nop; nop; nop; nop;");
|
|
|
|
|
NOP_COUNT(T0L_CYCLE);
|
|
|
|
|
#if F_CPU == 240000000L
|
|
|
|
|
NOP_COUNT(T0L_CYCLE);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (bitMask >>= 1) {
|
|
|
|
|
// not full byte, shift to next bit
|
|
|
|
|
__asm volatile("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;");
|
|
|
|
|
NOP_COUNT(LOOP_OVERHEAD_CYCLE);
|
|
|
|
|
} else {
|
|
|
|
|
// probably take 10 nops
|
|
|
|
|
// if a full byte is sent, next to another byte
|
|
|
|
|
@ -604,6 +829,9 @@ void __no_inline_not_in_flash_func(Adafruit_TestBed_Brains::setColor)(
|
|
|
|
|
p = *ptr++;
|
|
|
|
|
bitMask = 0x80;
|
|
|
|
|
}
|
|
|
|
|
#if F_CPU == 240000000L
|
|
|
|
|
NOP_COUNT(LOOP_OVERHEAD_CYCLE);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
restore_interrupts(isr_context);
|
|
|
|
|
@ -685,15 +913,14 @@ void Adafruit_TestBed_Brains::usbh_setVBus(bool en) {
|
|
|
|
|
bool Adafruit_TestBed_Brains::usbh_begin(void) {
|
|
|
|
|
// Check for CPU frequency, must be multiple of 120Mhz for bit-banging USB
|
|
|
|
|
uint32_t cpu_hz = clock_get_hz(clk_sys);
|
|
|
|
|
if (cpu_hz != 120000000UL && cpu_hz != 240000000UL) {
|
|
|
|
|
if (cpu_hz % 12000000UL) {
|
|
|
|
|
while (!Serial) {
|
|
|
|
|
delay(10); // wait for native usb
|
|
|
|
|
}
|
|
|
|
|
Serial.printf("Error: CPU Clock = %lu, PIO USB require CPU clock must be "
|
|
|
|
|
"multiple of 120 Mhz\r\n",
|
|
|
|
|
"multiple of 12 Mhz\r\n",
|
|
|
|
|
cpu_hz);
|
|
|
|
|
Serial.printf("Change your CPU Clock to either 120 or 240 Mhz in Menu->CPU "
|
|
|
|
|
"Speed \r\n");
|
|
|
|
|
Serial.println("Change your CPU Clock to 12*n Mhz in Menu->CPU Speed");
|
|
|
|
|
while (1) {
|
|
|
|
|
delay(1);
|
|
|
|
|
}
|
|
|
|
|
|
