void ADS1299::updateChannelData(){
byte inByte;
int byteCounter = 0;
csLow(); // open SPI
for(int i=0; i<3; i++){
inByte = xfer(0x00); // read status register (1100 + LOFF_STATP + LOFF_STATN + GPIO[7:4])
stat = (stat << 8) | inByte;
}
for(int i = 0; i<8; i++){
for(int j=0; j<3; j++){ // read 24 bits of channel data in 8 3 byte chunks
inByte = xfer(0x00);
rawChannelData[byteCounter] = inByte;
byteCounter++;
channelData[i] = (channelData[i]<<8) | inByte;
}
}
csHigh(); // close SPI
for(int i=0; i<8; i++){ // convert 3 byte 2's compliment to 4 byte 2's compliment
if(bitRead(channelData[i],23) == 1){
channelData[i] |= 0xFF000000;
}else{
channelData[i] &= 0x00FFFFFF;
}
}
}
// Read more than one register starting at _address
void ADS1299::RREGS(byte _address, byte _numRegistersMinusOne) {
// for(byte i = 0; i < 0x17; i++){
// regData[i] = 0; // reset the regData array
// }
byte opcode1 = _address + 0x20; // RREG expects 001rrrrr where rrrrr = _address
csLow(); // open SPI
xfer(opcode1); // opcode1
xfer(_numRegistersMinusOne); // opcode2
for(int i = 0; i <= _numRegistersMinusOne; i++){
regData[_address + i] = xfer(0x00); // add register byte to mirror array
}
csHigh(); // close SPI
if(verbosity){ // verbosity output
for(int i = 0; i<= _numRegistersMinusOne; i++){
printRegisterName(_address + i);
printHex(_address + i);
Serial.print(", ");
printHex(regData[_address + i]);
Serial.print(", ");
for(int j = 0; j<8; j++){
Serial.print(bitRead(regData[_address + i], 7-j));
if(j!=7) Serial.print(", ");
}
Serial.println();
delay(30);
}
}
}
static void goodfet_destroy(device_t dev_base)
{
struct goodfet *gc = (struct goodfet *)dev_base;
struct packet pkt;
xfer(gc->serial_fd, APP_JTAG430, JTAG430_RELEASECPU, 0, NULL, &pkt);
xfer(gc->serial_fd, APP_JTAG430, GLOBAL_STOP, 0, NULL, &pkt);
sport_close(gc->serial_fd);
free(gc);
}
void ADS1299::WREG(byte _address, byte _value) { // Write ONE register at _address
byte opcode1 = _address + 0x40; // WREG expects 010rrrrr where rrrrr = _address
csLow(); // open SPI
xfer(opcode1); // Send WREG command & address
xfer(0x00); // Send number of registers to read -1
xfer(_value); // Write the value to the register
csHigh(); // close SPI
regData[_address] = _value; // update the mirror array
if(verbosity){ // verbosity output
Serial.print("Register ");
printHex(_address);
Serial.println(" modified.");
}
}
int main(void) {
CPU_PRESCALE(0);
GBA_DDR &= ~(1<<MISO_BIT);
GBA_DDR |= (1<<MOSI_BIT) | (1<<CLK_BIT);
CLK_HIGH();
usb_init();
while (!usb_configured());
_delay_ms(1000);
INIT_TIMER();
while (1) {
if (usb_serial_available() >= 4) {
uint32_t data = 0;
data |= (uint32_t)usb_serial_getchar()<<24;
data |= (uint32_t)usb_serial_getchar()<<16;
data |= (uint32_t)usb_serial_getchar()<<8;
data |= (uint32_t)usb_serial_getchar();
xfer(&data);
usb_serial_putchar((data>>24) & 0xff);
usb_serial_putchar((data>>16) & 0xff);
usb_serial_putchar((data>>8) & 0xff);
usb_serial_putchar(data & 0xff);
usb_serial_flush_output();
}
}
void onDraw(SkCanvas* canvas) override {
SkAutoTUnref<SkXfermode> xfer(SkXfermode::Create(SkXfermode::kDstOver_Mode));
// gradient should appear over color bitmap
SkAutoTUnref<SkShader> shader0(new SkComposeShader(fLinearGradientShader,
fColorBitmapShader,
xfer));
// gradient should appear over alpha8 bitmap colorized by the paint color
SkAutoTUnref<SkShader> shader1(new SkComposeShader(fLinearGradientShader,
fAlpha8BitmapShader,
xfer));
SkShader* shaders[] = { shader0.get(), shader1.get() };
SkPaint paint;
paint.setColor(SK_ColorYELLOW);
const SkRect r = SkRect::MakeXYWH(0, 0, SkIntToScalar(squareLength),
SkIntToScalar(squareLength));
for (size_t y = 0; y < SK_ARRAY_COUNT(shaders); ++y) {
SkShader* shader = shaders[y];
canvas->save();
for (int alpha = 0xFF; alpha > 0; alpha -= 0x28) {
paint.setAlpha(alpha);
paint.setShader(shader);
canvas->drawRect(r, paint);
canvas->translate(r.width() + 5, 0);
}
canvas->restore();
canvas->translate(0, r.height() + 5);
}
}
void ADS1299::WREGS(byte _address, byte _numRegistersMinusOne) {
byte opcode1 = _address + 0x40; // WREG expects 010rrrrr where rrrrr = _address
csLow(); // open SPI
xfer(opcode1); // Send WREG command & address
xfer(_numRegistersMinusOne); // Send number of registers to read -1
for (int i=_address; i <=(_address + _numRegistersMinusOne); i++){
xfer(regData[i]); // Write to the registers
}
digitalWrite(CS,HIGH); // close SPI
if(verbosity){
Serial.print("Registers ");
printHex(_address); Serial.print(" to ");
printHex(_address + _numRegistersMinusOne);
Serial.println(" modified");
}
}
LinearPipelineContext(const SkShader& shader, const SkShader::ContextRec& rec,
SkBitmapProcInfo* info)
: INHERITED(shader, rec, info)
{
// Save things off in case we need to build a blitter pipeline.
fSrcPixmap = info->fPixmap;
fAlpha = SkColorGetA(info->fPaintColor) / 255.0f;
fXMode = info->fTileModeX;
fYMode = info->fTileModeY;
fFilterQuality = info->fFilterQuality;
fMatrixTypeMask = info->fRealInvMatrix.getType();
// Need to ensure that our pipeline is created at a 16byte aligned address
fShaderPipeline = (SkLinearBitmapPipeline*)SkAlign16((intptr_t)fShaderStorage);
new (fShaderPipeline) SkLinearBitmapPipeline(info->fRealInvMatrix, info->fFilterQuality,
info->fTileModeX, info->fTileModeY,
fAlpha,
info->fPixmap);
// To implement the old shadeSpan entry-point, we need to efficiently convert our native
// floats into SkPMColor. The SkXfermode::D32Procs do exactly that.
//
sk_sp<SkXfermode> xfer(SkXfermode::Make(SkXfermode::kSrc_Mode));
fXferProc = SkXfermode::GetD32Proc(xfer.get(), 0);
}
/* Read a word-aligned block from any kind of memory.
* returns the number of bytes read or -1 on failure
*/
static int read_words(device_t dev, const struct chipinfo_memory *m,
address_t addr, address_t len, uint8_t *data)
{
struct goodfet *gc = (struct goodfet *)dev;
sport_t fd = gc->serial_fd;
struct packet pkt;
uint8_t req[6];
if (len > MAX_MEM_BLOCK)
len = MAX_MEM_BLOCK;
req[0] = addr;
req[1] = addr >> 8;
req[2] = addr >> 16;
req[3] = addr >> 24;
req[4] = len;
req[5] = len >> 8;
if (xfer(fd, APP_JTAG430, GLOBAL_PEEK, sizeof(req), req, &pkt) < 0) {
printc_err("goodfet: read %d bytes from 0x%x failed\n",
len, addr);
return -1;
}
if (pkt.len != len) {
printc_err("goodfet: short memory read (got %d, "
"expected %d)\n", pkt.len, len);
return -1;
}
memcpy(data, pkt.data, pkt.len);
return len;
}
static void xfer_for_each_size(void (*xfer)(int len), int slen, int elen)
{
int i;
for (i = slen; i <= elen; i *= 2)
xfer(i);
}
DEF_TEST(FlatData, reporter) {
// Test flattening SkShader
SkPoint points[2];
points[0].set(0, 0);
points[1].set(SkIntToScalar(20), SkIntToScalar(20));
SkColor colors[2];
colors[0] = SK_ColorRED;
colors[1] = SK_ColorBLUE;
SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points, colors, NULL, 2,
SkShader::kRepeat_TileMode));
testCreate<SkFlattenableTraits>(reporter, *shader);
// Test SkBitmap
{
SkBitmap bm;
bm.allocN32Pixels(50, 50);
SkCanvas canvas(bm);
SkPaint paint;
paint.setShader(shader);
canvas.drawPaint(paint);
testCreate<SkBitmapTraits>(reporter, bm);
}
// Test SkColorFilter
SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateLightingFilter(SK_ColorBLUE, SK_ColorRED));
testCreate<SkFlattenableTraits>(reporter, *cf);
// Test SkXfermode
SkAutoTUnref<SkXfermode> xfer(SkXfermode::Create(SkXfermode::kDstOver_Mode));
testCreate<SkFlattenableTraits>(reporter, *xfer);
}
void onDrawContent(SkCanvas* canvas) override {
if (!canvas->getTotalMatrix().invert(&fInvMatrix)) {
return;
}
SkPaint paint;
SkScalar texWidth = fTexScale * TexWidth;
SkScalar texHeight = fTexScale * TexHeight;
const SkPoint texCoords[SkPatchUtils::kNumCorners] = {
{ fTexX - texWidth, fTexY - texHeight},
{ fTexX + texWidth, fTexY - texHeight},
{ fTexX + texWidth, fTexY + texHeight},
{ fTexX - texWidth, fTexY + texHeight}}
;
SkAutoTUnref<SkXfermode> xfer(SkXfermode::Create(SkXfermode::kSrc_Mode));
SkScalar scaleFreq = 2.0;
fShader1 = SkPerlinNoiseShader2::CreateImprovedNoise(fXFreq/scaleFreq, fYFreq/scaleFreq, 4,
fSeed);
fShaderCompose = SkShader::CreateComposeShader(fShader0, fShader1, nullptr);
paint.setShader(fShaderCompose);
canvas->drawPatch(fPts, nullptr, texCoords, xfer, paint);
draw_control_points(canvas, fPts);
SkSafeUnref(fShader1);
SkSafeUnref(fShaderCompose);
}
void rdm_str_addr_sr_xfer_for_each_size(void (*xfer)(int len), int slen, int elen)
{
int i;
for (i = slen; i <= elen; i *= 2) {
xfer(i);
}
}
//Reads/Writes next byte. Call 'n' times to read/write 'n' number of bytes. Should be called after _beginSPI()
uint8_t SPIFlash::_nextByte(char IOType, uint8_t data) {
#if defined (ARDUINO_ARCH_SAMD)
#ifdef ENABLEZERODMA
union {
uint8_t dataBuf[1];
uint8_t val;
} rxData, txData;
txData.val = data;
spi_transfer(txData.dataBuf, rxData.dataBuf, 1);
return rxData.val;
#else
return xfer(data);
#endif
#else
return xfer(data);
#endif
}
//Reads/Writes next data buffer. Should be called after _beginSPI()
void SPIFlash::_nextBuf(uint8_t opcode, uint8_t *data_buffer, uint32_t size) {
uint8_t *_dataAddr = &(*data_buffer);
switch (opcode) {
case READDATA:
#if defined (ARDUINO_ARCH_SAM)
due.SPIRecByte(&(*data_buffer), size);
#elif defined (ARDUINO_ARCH_SAMD)
#ifdef ENABLEZERODMA
spi_read(&(*data_buffer), size);
#else
_spi->transfer(&data_buffer[0], size);
#endif
#elif defined (ARDUINO_ARCH_AVR)
SPI.transfer(&(*data_buffer), size);
#else
for (uint16_t i = 0; i < size; i++) {
*_dataAddr = xfer(NULLBYTE);
_dataAddr++;
}
#endif
break;
case PAGEPROG:
#if defined (ARDUINO_ARCH_SAM)
due.SPISendByte(&(*data_buffer), size);
#elif defined (ARDUINO_ARCH_SAMD)
#ifdef ENABLEZERODMA
spi_write(&(*data_buffer), size);
#else
_spi->transfer(&data_buffer[0], size);
#endif
#elif defined (ARDUINO_ARCH_AVR)
SPI.transfer(&(*data_buffer), size);
#else
for (uint16_t i = 0; i < size; i++) {
xfer(*_dataAddr);
_dataAddr++;
}
#endif
break;
}
}
void ADS1299::RDATA() { // use in Stop Read Continuous mode when DRDY goes low
byte inByte; // to read in one sample of the channels
csLow(); // open SPI
xfer(_RDATA); // send the RDATA command
stat = xfer(0x00); // read status register (1100 + LOFF_STATP + LOFF_STATN + GPIO[7:4])
for(int i = 0; i<8; i++){
for(int j=0; j<3; j++){ // read in the status register and new channel data
inByte = xfer(0x00);
channelData[i] = (channelData[i]<<8) | inByte;
}
}
csHigh(); // close SPI
for(int i=0; i<8; i++){
if(bitRead(channelData[i],23) == 1){ // convert 3 byte 2's compliment to 4 byte 2's compliment
channelData[i] |= 0xFF000000;
}else{
channelData[i] &= 0x00FFFFFF;
}
}
}
static int goodfet_halt(struct goodfet *gc)
{
struct packet pkt;
if (xfer(gc->serial_fd, APP_JTAG430, JTAG430_HALTCPU,
0, NULL, &pkt) < 0) {
printc_err("goodfet: failed to release CPU\n");
return -1;
}
return 0;
}
byte ADS1299::RREG(byte _address) { // reads ONE register at _address
byte opcode1 = _address + 0x20; // RREG expects 001rrrrr where rrrrr = _address
csLow(); // open SPI
xfer(opcode1); // opcode1
xfer(0x00); // opcode2
regData[_address] = xfer(0x00);// update mirror location with returned byte
csHigh(); // close SPI
if (verbosity){ // verbosity output
printRegisterName(_address);
printHex(_address);
Serial.print(", ");
printHex(regData[_address]);
Serial.print(", ");
for(byte j = 0; j<8; j++){
Serial.print(bitRead(regData[_address], 7-j));
if(j!=7) Serial.print(", ");
}
Serial.println();
}
return regData[_address]; // return requested register value
}
void unmap_tags(
Mesh* old_mesh, Mesh* new_mesh, Int ent_dim, LOs new_ents2old_ents) {
for (Int i = 0; i < old_mesh->ntags(ent_dim); ++i) {
auto tag = old_mesh->get_tag(ent_dim, i);
if (is<I8>(tag)) {
new_mesh->add_tag<I8>(ent_dim, tag->name(), tag->ncomps(), tag->xfer(),
tag->outflags(),
unmap(new_ents2old_ents, to<I8>(tag)->array(), tag->ncomps()));
} else if (is<I32>(tag)) {
new_mesh->add_tag<I32>(ent_dim, tag->name(), tag->ncomps(), tag->xfer(),
tag->outflags(),
unmap(new_ents2old_ents, to<I32>(tag)->array(), tag->ncomps()));
} else if (is<I64>(tag)) {
new_mesh->add_tag<I64>(ent_dim, tag->name(), tag->ncomps(), tag->xfer(),
tag->outflags(),
unmap(new_ents2old_ents, to<I64>(tag)->array(), tag->ncomps()));
} else if (is<Real>(tag)) {
new_mesh->add_tag<Real>(ent_dim, tag->name(), tag->ncomps(), tag->xfer(),
tag->outflags(),
unmap(new_ents2old_ents, to<Real>(tag)->array(), tag->ncomps()));
}
}
}
static int spi_gpio_transfer(struct spi_t * spi, struct spi_msg_t * msg)
{
struct spi_gpio_pdata_t * pdat = (struct spi_gpio_pdata_t *)spi->priv;
int (*xfer)(struct spi_gpio_pdata_t * pdat,
u32_t (*txrx)(struct spi_gpio_pdata_t * pdat, u32_t val, int bits, int ns),
int ns, struct spi_msg_t * msg);
int ns;
if(msg->bits <= 8)
xfer = spi_gpio_bitbang_xfer_8;
else if(msg->bits <= 16)
xfer = spi_gpio_bitbang_xfer_16;
else if(msg->bits <= 32)
xfer = spi_gpio_bitbang_xfer_32;
else
return 0;
if(msg->speed > 0)
ns = (1000000000 / 2) / msg->speed;
else
ns = 10;
switch(msg->mode & 0x3)
{
case 0:
return xfer(pdat, spi_gpio_bitbang_txrx_mode0, ns, msg);
case 1:
return xfer(pdat, spi_gpio_bitbang_txrx_mode1, ns, msg);
case 2:
return xfer(pdat, spi_gpio_bitbang_txrx_mode2, ns, msg);
case 3:
return xfer(pdat, spi_gpio_bitbang_txrx_mode3, ns, msg);
default:
break;
}
return 0;
}
void work(void){
uint32_t xdata;
uint32_t cmd,data;
mmio_write(FUC_NEWSCRATCH_SET2, 8);
if (q2get != q2put) {
struct qe *ptr = &q2[q2get & 7];
cmd = ptr->cmd & ~0x7800;
data = ptr->data;
if (++q2get == 0x10)
q2get = 0;
} else if (qget != qput) {
struct qe *ptr = &queue[qget & 7];
cmd = ptr->cmd & ~0x7800;
data = ptr->data;
if (++qget == 0x10)
qget = 0;
} else {
mmio_write(FUC_NEWSCRATCH_CLEAR2, 8);
return;
}
in_temp_cmd = cmd;
in_temp_data = data;
set4160();
waitdone_12();
mmio_write(0xa24, 0);
mmio_write(FUC_MEM_CHAN, 0); /* type=nv50_channnel????? */
mmio_write(FUC_MEM_CMD, 7);
while (mmio_read(FUC_MEM_CMD)&0x1f);
setxferbase(10);
extr(xdata,0x08020495,28,29);
// base,
//xfer(0x80020494<<4,0,1,0,xdata,1,1,2);
xfer(0x20495<<4,0,5,&temp[0],0,2,1,2);
clear4160();
mmio_write(0x808, 0xb0000000 | temp[0]);
mmio_write(0x804, 0xb0000000 | temp[1]);
mmio_write(0x80c, 0x12345678);
}
/* Write a word to RAM. */
static int write_ram_word(sport_t fd, address_t addr, uint16_t value)
{
uint8_t req[6];
struct packet pkt;
req[0] = addr;
req[1] = addr >> 8;
req[2] = 0;
req[3] = 0;
req[4] = value;
req[5] = value >> 8;
if (xfer(fd, APP_JTAG430, GLOBAL_POKE, sizeof(req), req, &pkt) < 0) {
printc_err("goodfet: failed to write word at 0x%x\n", addr);
return -1;
}
return 0;
}
static int goodfet_erase(device_t dev_base, device_erase_type_t type,
address_t addr)
{
struct goodfet *gc = (struct goodfet *)dev_base;
struct packet pkt;
if (type != DEVICE_ERASE_MAIN) {
printc_err("goodfet: only main memory erase is supported\n");
return -1;
}
if (xfer(gc->serial_fd, APP_JTAG430, JTAG430_ERASEFLASH,
0, NULL, &pkt) < 0) {
printc_err("goodfet: erase failed\n");
return -1;
}
return 0;
}
static int init_device(sport_t fd)
{
struct packet pkt;
printc_dbg("Initializing...\n");
if (xfer(fd, APP_JTAG430, GLOBAL_NOK, 0, NULL, &pkt) < 0) {
printc_err("goodfet: comms test failed\n");
return -1;
}
printc_dbg("Setting up JTAG pins\n");
if (xfer(fd, APP_JTAG430, GLOBAL_SETUP, 0, NULL, &pkt) < 0) {
printc_err("goodfet: SETUP command failed\n");
return -1;
}
printc_dbg("Starting JTAG\n");
if (xfer(fd, APP_JTAG430, GLOBAL_START, 0, NULL, &pkt) < 0) {
printc_err("goodfet: START command failed\n");
return -1;
}
if (pkt.len < 1) {
printc_err("goodfet: bad response to JTAG START\n");
return -1;
}
printc("JTAG ID: 0x%02x\n", pkt.data[0]);
if (pkt.data[0] != 0x89 && pkt.data[0] != 0x91) {
printc_err("goodfet: unexpected JTAG ID: 0x%02x\n",
pkt.data[0]);
xfer(fd, APP_JTAG430, GLOBAL_STOP, 0, NULL, &pkt);
return -1;
}
printc_dbg("Halting CPU\n");
if (xfer(fd, APP_JTAG430, JTAG430_HALTCPU, 0, NULL, &pkt) < 0) {
printc_err("goodfet: HALTCPU command failed\n");
xfer(fd, APP_JTAG430, GLOBAL_STOP, 0, NULL, &pkt);
return -1;
}
return 0;
}
/* Write a word-aligned flash block. The starting address must be within
* the flash memory range.
*/
static int write_flash_block(sport_t fd, address_t addr,
address_t len, const uint8_t *data)
{
uint8_t req[MAX_MEM_BLOCK + 4];
struct packet pkt;
req[0] = addr >> 0;
req[1] = addr >> 8;
req[2] = addr >> 16;
req[3] = addr >> 24;
memcpy(req + 4, data, len);
if (xfer(fd, APP_JTAG430, JTAG430_WRITEFLASH,
len + 4, req, &pkt) < 0) {
printc_err("goodfet: failed to write "
"flash block of size %d at 0x%x\n",
len, addr);
return -1;
}
return 0;
}
static SkShader* make_shader(SkXfermode::Mode mode) {
SkPoint pts[2];
SkColor colors[2];
pts[0].set(0, 0);
pts[1].set(SkIntToScalar(100), 0);
colors[0] = SK_ColorRED;
colors[1] = SK_ColorBLUE;
SkAutoTUnref<SkShader> shaderA(SkGradientShader::CreateLinear(pts, colors, nullptr, 2,
SkShader::kClamp_TileMode));
pts[0].set(0, 0);
pts[1].set(0, SkIntToScalar(100));
colors[0] = SK_ColorBLACK;
colors[1] = SkColorSetARGB(0x80, 0, 0, 0);
SkAutoTUnref<SkShader> shaderB(SkGradientShader::CreateLinear(pts, colors, nullptr, 2,
SkShader::kClamp_TileMode));
SkAutoTUnref<SkXfermode> xfer(SkXfermode::Create(mode));
return new SkComposeShader(shaderA, shaderB, xfer);
}
/*
* Cu-like take command
*/
void
cu_take(char cc)
{
int fd, argc;
char line[BUFSIZ], *expand(), *cp;
if (prompt("[take] ", copyname, sizeof(copyname)))
return;
if ((argc = args(copyname, argv, sizeof(argv)/sizeof(argv[0]))) < 1 || argc > 2) {
printf("usage: <take> from [to]\r\n");
return;
}
if (argc == 1)
argv[1] = argv[0];
cp = expand(argv[1]);
if ((fd = creat(cp, 0666)) < 0) {
printf("\r\n%s: cannot create\r\n", argv[1]);
return;
}
(void)snprintf(line, sizeof(line), "cat %s ; echo \"\" ; echo ___tip_end_of_file_marker___", argv[0]);
xfer(line, fd, "\n___tip_end_of_file_marker___\n");
}
static int goodfet_reset(struct goodfet *gc)
{
static const uint8_t cmd_seq[] = {
JTAG430_RELEASECPU,
GLOBAL_STOP,
GLOBAL_START,
JTAG430_HALTCPU
};
int i;
/* We don't have a POR request, so just restart JTAG */
for (i = 0; i < 4; i++) {
struct packet pkt;
if (xfer(gc->serial_fd, APP_JTAG430, cmd_seq[i],
0, NULL, &pkt) < 0) {
printc_err("goodfet: reset: command 0x%02x failed\n",
cmd_seq[i]);
return -1;
}
}
return 0;
}
void
main(int argc, char **argv)
{
int conn, ctlfd, fd, n;
char buf[128], *base, *mtpt, *post, *url;
mtpt = "/mnt/web";
post = nil;
base = nil;
ARGBEGIN{
default:
usage();
case 'b':
base = EARGF(usage());
break;
case 'm':
mtpt = EARGF(usage());
break;
case 'p':
post = EARGF(usage());
break;
}ARGEND;
if (argc != 1)
usage();
url = argv[0];
snprint(buf, sizeof buf, "%s/clone", mtpt);
if((ctlfd = open(buf, ORDWR)) < 0)
sysfatal("couldn't open %s: %r", buf);
if((n = read(ctlfd, buf, sizeof buf-1)) < 0)
sysfatal("reading clone: %r");
if(n == 0)
sysfatal("short read on clone");
buf[n] = '\0';
conn = atoi(buf);
if(base)
if(fprint(ctlfd, "baseurl %s", base) < 0)
sysfatal("baseurl ctl write: %r");
if(fprint(ctlfd, "url %s", url) <= 0)
sysfatal("get ctl write: %r");
if(post){
snprint(buf, sizeof buf, "%s/%d/postbody", mtpt, conn);
if((fd = open(buf, OWRITE)) < 0)
sysfatal("open %s: %r", buf);
if(write(fd, post, strlen(post)) < 0)
sysfatal("post write failed: %r");
close(fd);
}
snprint(buf, sizeof buf, "%s/%d/body", mtpt, conn);
if((fd = open(buf, OREAD)) < 0)
sysfatal("open %s: %r", buf);
xfer(fd, 1);
exits(nil);
}
void ADS1299::SDATAC() {
csLow();
xfer(_SDATAC);
csHigh();
delayMicroseconds(3); //must wait 4 tCLK cycles after executing this command (Datasheet, pg. 37)
}