kaqu
2 years ago
parent
88064133e3
commit
8bb4a4d5e2
@ -1,4 +1,4 @@ |
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build/* |
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__pycache__/* |
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backup/* |
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software/* |
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software/build/* |
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@ -0,0 +1,154 @@ |
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//
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// illumination.c
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// The Neopixel-Engine demonstration
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//
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// History:
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// --------
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// 07.10.20/KQ Initial version
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// 18.10.20/KQ RAM version w/ command interpreter loop ready
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//
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <console.h> |
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#include <string.h> |
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#include <uart.h> |
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#include <system.h> |
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#include <id.h> |
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#include <irq.h> |
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#include <crc.h> |
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#include "boot.h" |
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#include "readline.h" |
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#include "helpers.h" |
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#include "command.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/csr.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/soc.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/mem.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/git.h" |
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#include <spiflash.h> |
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#include <liblitedram/sdram.h> |
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#include <libliteeth/udp.h> |
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#include <libliteeth/mdio.h> |
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#include <liblitespi/spiflash.h> |
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#include <liblitesdcard/sdcard.h> |
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#include "illumination.h" |
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extern void busy_wait(unsigned int ms); // Worx!
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#define MAXTABLES 3 // 1..16 MUST match h/w!
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#define MAXLEDS 27 // 1..256 MUST match h/w!
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static int32_t arLEDBuffer[MAXTABLES][MAXLEDS]; // GRB values
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void enable_LEDS(int iEnable) |
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{ |
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npe_b8Len_write(MAXLEDS); // Prepare length
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npe_bEnable_write(iEnable ? 1 : 0); // Enable/disable
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} |
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void send_LEDs(void) |
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{ |
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for(int j=0;j<MAXTABLES;j++) { |
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npe_b4LoadTable_write(j); // Select table
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for(int i=0;i<MAXLEDS;i++) { |
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npe_b8LoadOffset_write(i); // and offset
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npe_b24Data2Load_write(arLEDBuffer[j][i]); // store 32(24) bit value @Table/Offset
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}
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} |
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busy_wait(25); // Minimum that meets the eye ;)
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} |
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void clear_LEDs(int iTable) |
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{ |
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for(int i=0;i<MAXLEDS;i++)
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arLEDBuffer[iTable][i] = 0;
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} |
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void load_triple_LEDs(int iTable, int32_t green, int32_t red, int32_t blue) |
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{ |
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for(int i=0;i<MAXLEDS;i+=3) { |
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arLEDBuffer[iTable][i] = green; |
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arLEDBuffer[iTable][i+1] = red; |
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arLEDBuffer[iTable][i+2] = blue; |
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}
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} |
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void illumination(void) |
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{
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int32_t green = 0x040000; |
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int32_t red = 0x000400; |
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int32_t blue = 0x000004; |
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int iTable; |
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printf("Illumination demo starting ...\n"); |
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// Prepare first output
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iTable = 0; |
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load_triple_LEDs(iTable, green, red, blue); // 1st load
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iTable = 1; |
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load_triple_LEDs(iTable, red, blue, green);
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iTable = 2; |
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load_triple_LEDs(iTable, blue, green, red);
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send_LEDs(); |
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enable_LEDS(1); |
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busy_wait(2000); |
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// Let them flicker ...
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for(int i=0;i<MAXLEDS;i++) { |
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int32_t temp = green; |
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green = red; |
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red = blue; |
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blue = temp; |
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for(iTable=0;iTable<MAXTABLES;iTable++) |
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load_triple_LEDs(iTable, green, red, blue); |
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send_LEDs(); |
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busy_wait(80); // Slow down a bit
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} |
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// Make 3 run along ...
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green = 0x404000; |
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red = 0x004040; |
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blue = 0x400040; |
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for(iTable=0;iTable<MAXTABLES;iTable++) { |
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clear_LEDs(iTable); // Reset buffers
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arLEDBuffer[iTable][0] = green; |
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arLEDBuffer[iTable][1] = red; |
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arLEDBuffer[iTable][2] = blue; |
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} |
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int max_LED = MAXLEDS-1; // 0..26
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for(int i=0;i<MAXLEDS-3;i++) { // Forward shift 3
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send_LEDs(); |
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busy_wait(100); |
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for(iTable=0;iTable<MAXTABLES;iTable++) { |
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for(int j=0;j<max_LED;j++) |
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arLEDBuffer[iTable][max_LED - j] = arLEDBuffer[iTable][(max_LED - 1) - j]; |
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arLEDBuffer[iTable][i] = 0; |
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} |
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} |
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printf("Halfway thru ...\n"); |
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for(int i=0;i<MAXLEDS-1;i++) { // Backward shift 3
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send_LEDs(); |
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busy_wait(100); |
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for(iTable=0;iTable<MAXTABLES;iTable++) { |
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for(int j=0;j<max_LED;j++) |
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arLEDBuffer[iTable][j] = arLEDBuffer[iTable][j+1]; |
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arLEDBuffer[iTable][max_LED-i] = 0; |
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} |
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} |
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busy_wait(400); |
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// Prepare final output
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for(iTable=0;iTable<MAXTABLES;iTable++)
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load_triple_LEDs(iTable, 0x010000, 0x000100, 0x000001); // 1st load
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send_LEDs(); |
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busy_wait(500); |
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enable_LEDS(0); |
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printf("Finished!\n"); |
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busy_wait(1000); |
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uart_init(); // Clear buffers ...
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} |
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@ -0,0 +1,8 @@ |
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#ifndef ILLUMINATION_H |
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#define ILLUMINATION_H |
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extern void enable_LEDS(int iEnable); |
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extern void send_LEDs(void); |
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extern void clear_LEDs(int iTable); |
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extern void load_triple_LEDs(int iTable, int32_t green, int32_t red, int32_t blue); |
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extern void illumination(void); |
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#endif |
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@ -0,0 +1,85 @@ |
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INCLUDE linker/output_format.ld |
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/* ENTRY(_start) */ |
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ENTRY(illumination) |
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INCLUDE ../build/colorlight_5a_75b/software/include/generated/regions.ld |
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SECTIONS |
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{ |
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.text : |
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{ |
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_ftext = .; |
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/* Make sure crt0 files come first, and they, and the isr */ |
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/* don't get disposed of by greedy optimisation */ |
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*crt0*(.text) |
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KEEP(*crt0*(.text)) |
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KEEP(*(.text.isr)) |
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*(.text .stub .text.* .gnu.linkonce.t.*) |
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_etext = .; |
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} > main_ram |
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.rodata : |
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{ |
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. = ALIGN(8); |
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_frodata = .; |
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*(.rodata .rodata.* .gnu.linkonce.r.*) |
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*(.rodata1) |
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*(.got .got.*) |
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*(.toc .toc.*) |
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/* Make sure the file is aligned on disk as well |
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as in memory; CRC calculation requires that. */ |
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FILL(0); |
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. = ALIGN(8); |
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_erodata = .; |
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} > main_ram |
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.commands : |
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{ |
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PROVIDE_HIDDEN (__bios_cmd_start = .); |
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KEEP(*(.bios_cmd)) |
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PROVIDE_HIDDEN (__bios_cmd_end = .); |
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} > main_ram |
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.data : |
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{ |
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. = ALIGN(8); |
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_fdata = .; |
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*(.data .data.* .gnu.linkonce.d.*) |
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*(.data1) |
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*(.sdata .sdata.* .gnu.linkonce.s.*) |
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/* Make sure the file is aligned on disk as well |
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as in memory; CRC calculation requires that. */ |
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FILL(0); |
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. = ALIGN(8); |
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_edata = .; |
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} > sram AT > main_ram |
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.bss : |
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{ |
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. = ALIGN(8); |
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_fbss = .; |
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*(.dynsbss) |
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*(.sbss .sbss.* .gnu.linkonce.sb.*) |
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*(.scommon) |
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*(.dynbss) |
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*(.bss .bss.* .gnu.linkonce.b.*) |
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*(COMMON) |
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. = ALIGN(8); |
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_ebss = .; |
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_end = .; |
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} > sram AT > main_ram |
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/DISCARD/ : |
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{ |
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*(.eh_frame) |
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*(.comment) |
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} |
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} |
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PROVIDE(_fstack = ORIGIN(sram) + LENGTH(sram) - 8); |
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PROVIDE(_fdata_rom = LOADADDR(.data)); |
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PROVIDE(_edata_rom = LOADADDR(.data) + SIZEOF(.data)); |
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@ -0,0 +1 @@ |
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OUTPUT_FORMAT("elf32-littleriscv") |
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@ -0,0 +1,80 @@ |
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#!/bin/bash |
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# |
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# ramcreate.sh |
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# A rather obbscure RAM s/w builder (needs transformation to actual makefile setup ;) |
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# |
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# History: |
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# -------- |
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# 10.10.20/KQ Initial (running) version |
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# |
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# Test for missing ('zero length') basefilename |
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if [[ -z $1 || -z $2 ]]; then |
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echo "usage: ./ramcreate.sh <mainfile_w/o_extension> <jobfile_w/o_extension>" |
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exit |
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fi |
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# Adjust these paths according to your local installation !!! |
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MY_LOCAL_LITEX_PATH=$HOME"/fpga/litex" |
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MY_LOCAL_FOMU_PATH=$HOME"/Fomu" |
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# If you don't use a virtual environment, comment out next line ... |
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source $HOME/fpga/bin/activate |
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# Make sure, we use the right compiler version ... |
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export PATH=$PATH:$MY_LOCAL_LITEX_PATH/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14/bin/ |
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TRIPLE="riscv64-unknown-elf" |
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CPU="vexriscv" |
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CPUFLAGS="-march=rv32i -mabi=ilp32 -D__vexriscv__" |
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CPUENDIANNESS="little" |
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CPU_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/cores/cpu/vexriscv" |
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COMPILER_RT_DIRECTORY="$MY_LOCAL_LITEX_PATH/pythondata-software-compiler_rt/pythondata_software_compiler_rt/data" |
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SOC_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc" |
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#export BUILDINC_DIRECTORY |
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BUILDINC_DIRECTORY="/mnt/a30054ad-3fe6-444a-8d93-16df937e448e/projects/fpga/neopixelar/build/colorlight_5a_75b/software/include" |
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LIBCOMPILER_RT_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/software/libcompiler_rt" |
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LIBBASE_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/software/libbase" |
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LIBLITEDRAM_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/software/liblitedram" |
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LIBLITEETH_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/software/libliteeth" |
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LIBLITESPI_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/software/liblitespi" |
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LIBLITESDCARD_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/software/liblitesdcard" |
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BIOS_DIRECTORY="$MY_LOCAL_LITEX_PATH/litex/litex/soc/software/bios" |
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BIOSPATH="/mnt/a30054ad-3fe6-444a-8d93-16df937e448e/projects/fpga/neopixelar/build/colorlight_5a_75b/software/bios" |
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OBJECTS="$BIOSPATH/isr.o $BIOSPATH/boot-helper.o $BIOSPATH/boot.o $BIOSPATH/helpers.o $BIOSPATH/cmd_bios.o $BIOSPATH/cmd_mem.o $BIOSPATH/cmd_boot.o $BIOSPATH/cmd_i2c.o $BIOSPATH/cmd_spiflash.o $BIOSPATH/cmd_litedram.o $BIOSPATH/cmd_liteeth.o $BIOSPATH/cmd_litesdcard.o $BIOSPATH/complete.o $BIOSPATH/readline.o" |
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LXP="../build/colorlight_5a_75b/software" |
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CRT0="$LXP/libbase/crt0.o" |
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LXR="-L$LXP/libcompiler_rt -L$LXP/libbase -L$LXP/liblitedram -L$LXP/libliteeth -L$LXP/liblitespi -L$LXP/liblitesdcard -llitedram -lliteeth -llitespi -llitesdcard -lbase-nofloat -lcompiler_rt" |
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INCLUDES="-I$SOC_DIRECTORY/software/include/base -I$SOC_DIRECTORY/software/include -I$SOC_DIRECTORY/software -I$BUILDINC_DIRECTORY -I$CPU_DIRECTORY -I$BIOS_DIRECTORY" |
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# -Os optimize for size |
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#COMMONFLAGS="-Os $CPUFLAGS -g3 -fomit-frame-pointer -Wall -fno-builtin -nostdinc $INCLUDES" |
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COMMONFLAGS="-O0 $CPUFLAGS -g3 -fomit-frame-pointer -Wall -fno-builtin -nostdinc $INCLUDES" |
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CFLAGS="-fexceptions -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes" |
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LDFLAGS="-nostdlib -nodefaultlibs -L$BUILDINC_DIRECTORY" |
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echo "--" |
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echo "calling gcc with: -c $COMMONFLAGS $CFLAGS -Wa,-fPIC" |
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#$MY_LOCAL_LITEX_PATH/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14/bin/riscv64-unknown-elf-gcc -O0 -S -nostdinc $COMMONFLAGS $INCLUDES -Wa,-fPIC $1.c |
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$MY_LOCAL_LITEX_PATH/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14/bin/riscv64-unknown-elf-gcc -c $COMMONFLAGS $CFLAGS -Wa,-fPIC $2.c -o build/$2.o |
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$MY_LOCAL_LITEX_PATH/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14/bin/riscv64-unknown-elf-gcc -c $COMMONFLAGS $CFLAGS -Wa,-fPIC $1.c -o build/$1.o |
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echo "--" |
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echo "calling ld with: $LDFLAGS $OBJECTS build/$2.o build/$1.o -o build/$1.bin" |
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$MY_LOCAL_LITEX_PATH/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14/bin/riscv64-unknown-elf-ld $LDFLAGS -T linker/linker.ld -N $CRT0 $OBJECTS $LXR build/$2.o build/$1.o -o build/$1.elf |
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echo "--" |
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echo "creating raw binary from elf-file" |
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$MY_LOCAL_LITEX_PATH/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14/riscv64-unknown-elf/bin/objcopy -O binary -S --image-base 0x40000000 build/$1.elf build/$1.bin |
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#echo "--" |
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#echo "creating disassembly dump build/$1.dis" |
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#$MY_LOCAL_LITEX_PATH/riscv64-unknown-elf-gcc-8.3.0-2019.08.0-x86_64-linux-ubuntu14/bin/riscv64-unknown-elf-objdump -D -b binary build/$1.bin -m riscv >build/$1.dis |
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echo "--" |
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echo "loading build/$1.bin to RAM base via wishbone-tool" |
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$MY_LOCAL_FOMU_PATH/fomu-toolchain-linux_x86_64-v1.5.6/bin/wishbone-tool --ethernet-host 192.168.1.20 --server load-file --csr-csv ../build/csr.csv --load-address 0x40000000 --load-name build/$1.bin |
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#echo "--" |
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#echo "Connecting to remote terminal w/ wishbone-tool (press ESC to terminate ...)" |
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#$MY_LOCAL_FOMU_PATH/fomu-toolchain-linux_x86_64-v1.5.6/bin/wishbone-tool --ethernet-host 192.168.1.20 --server terminal --csr-csv ../build/csr.csv |
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# alternatively use: |
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# screen /dev/ttyUSB0 115200 |
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# Press 'Ctrl-A k' to terminate ... |
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echo "Done (don't worry about the download 'error' in red!)." |
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@ -0,0 +1,94 @@ |
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//
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// ramtest.c
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// RAM loadable (& executable!) object
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//
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// History:
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// --------
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// 07.10.20/KQ Initial version
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// 18.10.20/KQ RAM version w/ command interpreter loop ready
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//
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <console.h> |
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#include <string.h> |
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#include <uart.h> |
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#include <system.h> |
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#include <id.h> |
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#include <irq.h> |
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#include <crc.h> |
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#include "boot.h" |
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#include "readline.h" |
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#include "helpers.h" |
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#include "command.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/csr.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/soc.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/mem.h" |
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#include "../build/colorlight_5a_75b/software/include/generated/git.h" |
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#include <spiflash.h> |
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#include <liblitedram/sdram.h> |
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#include <libliteeth/udp.h> |
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#include <libliteeth/mdio.h> |
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#include <liblitespi/spiflash.h> |
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#include <liblitesdcard/sdcard.h> |
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#include "illumination.h" |
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extern void busy_wait(unsigned int ms); // Worx!
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int32_t cpc; // Current PC storage
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int main(int i, char **c) |
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{
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char buffer[CMD_LINE_BUFFER_SIZE]; |
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char *params[MAX_PARAM]; |
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char *command; |
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struct command_struct *cmd; |
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int nb_params; |
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#ifdef CONFIG_CPU_HAS_INTERRUPT |
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irq_setmask(0); |
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irq_setie(1); |
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#endif |
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uart_init(); |
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printf("\n"); |
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// Verify we're executing within RAM ...
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__asm__ __volatile__ ("\
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lui t0,%hi(cpc) # Load t0 w/ high adress of cpc \n\
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addi t0,t0,%lo(cpc) # Add immediate t0=t0 + low adress cpc \n\
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# t0 now loaded with pointer to cpc \n\ |
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auipc t1,0 # Load current pc \n\
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sw t1,0(t0) # Store current PC \n\
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"); |
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if((cpc >= MAIN_RAM_BASE) && (cpc <= (MAIN_RAM_BASE + MAIN_RAM_SIZE))) { |
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printf("\e[1mExecuting within RAM ...\e[0m\n"); |
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while(1) |
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illumination(); // The DEMO !
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while(1) {
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printf("\n%s", PROMPT); |
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readline(buffer, CMD_LINE_BUFFER_SIZE); |
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if (buffer[0] != 0) { |
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printf("\n"); |
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nb_params = get_param(buffer, &command, params); |
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cmd = command_dispatcher(command, nb_params, params); |
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if (!cmd) { |
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printf("Command not found?! Executing illumination demo instead ...\n");
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illumination(); // more DEMO ...
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} |
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} |
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} |
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} |
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else
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printf("Non-RAM execution @%08Xh, no action ...\n", cpc); |
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while(1);
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return 0; |
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} |
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