jwise

import usb
import sys
import struct
import time

fx3 = usb.core.find(idVendor = 0x04B4, idProduct = 0x00F3) # FX3 bootloader
fx3.set_configuration()

def do_control_transfer(fx3, ad, da):
    pos = 0

jwise

# carefully generate a single DFF with exactly the clk / d / q / rst that you want.  is there a more idiomatic way to write this?
class Dff(Special):
    def __init__(self, clk, d, q, rst, rstval, name=None):
        Special.__init__(self)
        self.clk = clk
        self.d = d
        self.q = q
        self.rst = rst
        self.rstval = rstval
        self.name_override = get_obj_var_name(name, "dff")

jwise

This is a set of snippets to get LiteX to statically build software as part of the gateware build process. The goal is to have only a single SRAM, rather than wasting block RAM on a separate ROM and RAM partition, and to have a small chunk of code loaded in that RAM that is built as part of the gateware build process, but not necessarily the LiteX BIOS.

jwise

/* ported from humanshader.com; paste into shadertoy */
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
    float x = fragCoord.x / iResolution.x * 70.0;
    float y = (iResolution.y - fragCoord.y) / iResolution.y * 39.0;
    float u = x - 36.0;
    float v = 18.0 - y;
    float h = u*u+v*v;
    float R, G, B;
    if (h < 200.0) {

jwise

#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define FLAG_CLR_P(val, flag) (((val) & (flag)) == 0)

struct hdr {
        uint16_t v_0x5001; /* 01 50 */

jwise

#include <unistd.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>

#define POLY 0x04C11DB7

uint32_t crc_table[256];

uint32_t update_crc_slow_1byte(uint32_t crc, uint32_t data) {

jwise

bcast() { adb shell am broadcast -a com.wahoofitness.bolt.buttons.$1_button.$2 ; }
bcast $1 down
bcast $1 up
bcast $1 pressed

jwise

Keybase proof

I hereby claim:

• I am jwise on github.
• I am jwise (https://keybase.io/jwise) on keybase.
• I have a public key whose fingerprint is 4506 177A 4CB2 661A 3C35 75BA 9080 C092 EA80 E0B4

To claim this, I am signing this object:

jwise

      KERNEL: kernel_link
    DUMPFILE: dump.201310210007  [PARTIAL DUMP]
        CPUS: 4
        DATE: Mon Oct 21 00:06:20 2013
      UPTIME: 00:01:07
LOAD AVERAGE: 0.89, 0.28, 0.10
       TASKS: 411
    NODENAME: moroso
     RELEASE: 3.2.0-4-amd64
     VERSION: #1 SMP Debian 3.2.46-1+deb7u1

jwise

(gdb) lua_globals L
(gdb) lua_gettype $rv
(gdb) lua_gettable $rv "string"
Walking node part...
Value at node idx 1     Key [STRING]:          string    -> value type 5 @ (TValue *)0x81012cc
(gdb) lua_gettype $rv
(gdb) lua_walktable $rv
Walking array part...
Walking node part...
Value at node idx 0     Key [STRING]:             sub    -> value type 6 @ (TValue*)0x8100160