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scpi_parser
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removed junk, improved readme

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Ondřej Hruška 9 years ago
parent f79c3a2a91
commit 9a55f11345
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  1. 8
      Makefile
  2. 63
      README.md
  3. 2
      example.c
  4. 264
      scpi.pro.user

8
Makefile
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@ -1,4 +1,4 @@
SRC = main.c
SRC = example.c
SRC+= source/scpi_parser.c
SRC+= source/scpi_regs.c
SRC+= source/scpi_builtins.c
@ -16,14 +16,12 @@ CFLAGS += -Wredundant-decls -Wfloat-equal -Wsign-compare -Wunused-function
all: $(SRC) $(HDRS)
gcc $(CFLAGS) $(SRC) -o main.elf
gcc $(CFLAGS) $(SRC) -o example.elf
run: all
./main.elf
./example.elf
clean:
rm -f *.o *.d *.so *.elf *.bin *.hex
cd source
rm -f *.o *.d *.so *.elf *.bin *.hex

63
README.md
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@ -18,13 +18,70 @@ The implementation is not 100% complete, but it's sufficient for basic SCPI comm
Built-in commands can be overriden in user command array.
## How to use
See main.c for example of how to use the library.
Here's an overview of stubs you have to implement (at the time of writingthis readme):
```c
#include "scpi_parser.h"
const SCPI_error_desc scpi_user_errors[] = {
{10, "Custom error"}, // add your custom errors here
{/*END*/}
};
void scpi_send_byte_impl(uint8_t b)
{
// send the byte to master (over UART?)
}
const char *scpi_device_identifier(void)
{
// fill in your device info
// possible to eg. read a serial # from EEPROM
return "<manufacturer>,<product>,<serial#>,<version>";
}
/* OPTIONAL callback */
void scpi_service_request_impl(void)
{
// called when the SRQ flag in Status Byte is set.
// device should somehow send the request to master
// (can be left unimplemented)
}
/* Custom commands */
const SCPI_command_t scpi_commands[] = {
{
.levels = {"APPLy", "SINe"},
.params = {SCPI_DT_INT, SCPI_DT_FLOAT, SCPI_DT_FLOAT},
.callback = cmd_APPL_SIN_cb
},
{
.levels = {"DISPlay", "TEXT"},
.params = {SCPI_DT_STRING},
.callback = cmd_DISP_TEXT_cb // <-- your callback function
},
{
.levels = {"DATA", "BLOB"},
.params = {SCPI_DT_BLOB},
.callback = cmd_DATA_BLOB_cb, // <-- command callback
.blob_chunk = 4,
.blob_callback = cmd_DATA_BLOB_data // <-- data callback
},
{/*END*/}
};
// See the header files for more info.
```
## What is missing
- <s>Setting error type flags in the ESR when error is added to queue</s>
- <s>There may be some bugs in the status registers (not tested much)</s>
- <s>Character data argument ("string without quotes", enum-like)</s>
- Number units and metric suffixes (k,M,G,m,u,n)
- DEF, MIN, MAX, INF, NINF argument values for numbers

2
main.c → example.c
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@ -105,7 +105,7 @@ void cmd_USRERR_cb(const SCPI_argval_t *args)
void cmd_CHARD_cb(const SCPI_argval_t *args)
{
printf("CHARData cb: %s, arg2 = %d", args[0].CHARDATA, args[1].INT);
printf("CHARData cb: %s, arg2 = %d\n", args[0].CHARDATA, args[1].INT);
}

264
scpi.pro.user
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@ -1,264 +0,0 @@
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