// Write an 8-bit code to the LTC2943.
int8_t LTC2943_write(uint8_t i2c_address, uint8_t adc_command, uint8_t code)
// The function returns the state of the acknowledge bit after the I2C address write. 0=acknowledge, 1=no acknowledge.
{
int32_t ack;
ack = i2c_write_byte_data(i2c_address, adc_command, code);
return(ack);
}
int mir3da_register_write( unsigned char addr, unsigned char data) {
int res = 0;
res = i2c_write_byte_data(addr, data);
if(res != 0) {
return res;
}
return res;
}
int16_t parse_cmd_i2c_write_byte_data(char *cmd, char *output, uint16_t len)
{
uint8_t cadr;
uint8_t dadr;
uint8_t data;
sscanf_P(cmd, PSTR("%u %u %x"), &cadr, &dadr, &data);
if (cadr < 7 || cadr > 127)
return ECMD_ERR_PARSE_ERROR;
uint16_t ret = i2c_write_byte_data(cadr, dadr, data);
#ifdef ECMD_MIRROR_REQUEST
return ECMD_FINAL(snprintf_P(output, len, PSTR("i2c wbd %d %d 0x%02X"), cadr, dadr, ret));
#else
return ECMD_FINAL(snprintf_P(output, len, PSTR("0x%02X"), ret));
#endif
}
// Write an 8-bit code to the LTC4245
int8_t LTC4245_write(uint8_t i2c_address, uint8_t command, uint8_t code)
{
int8_t ack;
ack = i2c_write_byte_data(i2c_address,command,code);
return ack;
}
void tb(int pi)
{
int h, e, b, len;
char *exp;
char buf[128];
printf("SMBus / I2C tests.");
/* this test requires an ADXL345 on I2C bus 1 addr 0x53 */
h = i2c_open(pi, 1, 0x53, 0);
CHECK(11, 1, h, 0, 0, "i2c open");
e = i2c_write_device(pi, h, "\x00", 1); /* move to known register */
CHECK(11, 2, e, 0, 0, "i2c write device");
b = i2c_read_device(pi, h, buf, 1);
CHECK(11, 3, b, 1, 0, "i2c read device");
CHECK(11, 4, buf[0], 0xE5, 0, "i2c read device");
b = i2c_read_byte(pi, h);
CHECK(11, 5, b, 0xE5, 0, "i2c read byte");
b = i2c_read_byte_data(pi, h, 0);
CHECK(11, 6, b, 0xE5, 0, "i2c read byte data");
b = i2c_read_byte_data(pi, h, 48);
CHECK(11, 7, b, 2, 0, "i2c read byte data");
exp = "\x1D[aBcDeFgHjKM]";
len = strlen(exp);
e = i2c_write_device(pi, h, exp, len);
CHECK(11, 8, e, 0, 0, "i2c write device");
e = i2c_write_device(pi, h, "\x1D", 1);
b = i2c_read_device(pi, h, buf, len-1);
CHECK(11, 9, b, len-1, 0, "i2c read device");
CHECK(11, 10, strncmp(buf, exp+1, len-1), 0, 0, "i2c read device");
if (strncmp(buf, exp+1, len-1))
printf("got [%.*s] expected [%.*s]\n", len-1, buf, len-1, exp+1);
e = i2c_write_byte_data(pi, h, 0x1d, 0xAA);
CHECK(11, 11, e, 0, 0, "i2c write byte data");
b = i2c_read_byte_data(pi, h, 0x1d);
CHECK(11, 12, b, 0xAA, 0, "i2c read byte data");
e = i2c_write_byte_data(pi, h, 0x1d, 0x55);
CHECK(11, 13, e, 0, 0, "i2c write byte data");
b = i2c_read_byte_data(pi, h, 0x1d);
CHECK(11, 14, b, 0x55, 0, "i2c read byte data");
exp = "[1234567890#]";
len = strlen(exp);
e = i2c_write_block_data(pi, h, 0x1C, exp, len);
CHECK(11, 15, e, 0, 0, "i2c write block data");
e = i2c_write_device(pi, h, "\x1D", 1);
b = i2c_read_device(pi, h, buf, len);
CHECK(11, 16, b, len, 0, "i2c read device");
CHECK(11, 17, strncmp(buf, exp, len), 0, 0, "i2c read device");
if (strncmp(buf, exp, len))
printf("got [%.*s] expected [%.*s]\n", len, buf, len, exp);
b = i2c_read_i2c_block_data(pi, h, 0x1D, buf, len);
CHECK(11, 18, b, len, 0, "i2c read i2c block data");
CHECK(11, 19, strncmp(buf, exp, len), 0, 0, "i2c read i2c block data");
if (strncmp(buf, exp, len))
printf("got [%.*s] expected [%.*s]\n", len, buf, len, exp);
exp = "(-+=;:,<>!%)";
len = strlen(exp);
e = i2c_write_i2c_block_data(pi, h, 0x1D, exp, len);
CHECK(11, 20, e, 0, 0, "i2c write i2c block data");
b = i2c_read_i2c_block_data(pi, h, 0x1D, buf, len);
CHECK(11, 21, b, len, 0, "i2c read i2c block data");
CHECK(11, 22, strncmp(buf, exp, len), 0, 0, "i2c read i2c block data");
if (strncmp(buf, exp, len))
printf("got [%.*s] expected [%.*s]\n", len, buf, len, exp);
e = i2c_close(pi, h);
CHECK(11, 23, e, 0, 0, "i2c close");
}
