avr/cI2C
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v0.5: speed enum names change

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This commit is contained in:
SMFSW 2017-02-02 00:03:07 +01:00
parent b50281b841
commit 52b3885bfc
10 changed files with 138 additions and 133 deletions
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20
examples/ci2c_advanced/ci2c_advanced.ino
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@ -7,7 +7,7 @@
This example code is in the public domain.
created Jan 12 2017
latest mod Jan 22 2017
latest mod Jan 31 2017
by SMFSW
*/
@ -22,7 +22,7 @@ void setup() {
memset(&str, blank, sizeof(str));
Serial.begin(115200); // start serial for output
I2C_init(I2C_LOW); // init with low speed (400KHz)
I2C_init(I2C_FM); // init with Fast Mode (400KHz)
I2C_slave_init(&FRAM, 0x50, I2C_16B_REG);
I2C_slave_set_rw_func(&FRAM, I2C_wr_advanced, I2C_WRITE);
I2C_slave_set_rw_func(&FRAM, I2C_rd_advanced, I2C_READ);
@ -72,14 +72,14 @@ bool I2C_wr_advanced(I2C_SLAVE * slave, uint16_t reg_addr, uint8_t * data, uint1
{
if (slave->cfg.reg_size >= I2C_16B_REG) // if size >2, 16bit address is used
{
if (I2C_snd8((uint8_t) (reg_addr >> 8)) == false) { return false; }
if (I2C_wr8((uint8_t) (reg_addr >> 8)) == false) { return false; }
}
if (I2C_snd8((uint8_t) reg_addr) == false) { return false; }
if (I2C_wr8((uint8_t) reg_addr) == false) { return false; }
}
for (uint16_t cnt = 0; cnt < bytes; cnt++)
{
if (I2C_snd8(*(data++)) == false) { return false; }
if (I2C_wr8(*(data++)) == false) { return false; }
slave->reg_addr++;
}
@ -108,16 +108,16 @@ bool I2C_rd_advanced(I2C_SLAVE * slave, uint16_t reg_addr, uint8_t * data, uint1
if (I2C_sndAddr(slave, I2C_WRITE) == false) { return false; }
if (slave->cfg.reg_size >= I2C_16B_REG) // if size >2, 16bit address is used
{
if (I2C_snd8((uint8_t) (reg_addr >> 8)) == false) { return false; }
if (I2C_wr8((uint8_t) (reg_addr >> 8)) == false) { return false; }
}
if (I2C_snd8((uint8_t) reg_addr) == false) { return false; }
if (I2C_wr8((uint8_t) reg_addr) == false) { return false; }
}
if (I2C_start() == false) { return false; }
if (I2C_sndAddr(slave, I2C_READ) == false) { return false; }
for (uint16_t cnt = 0; cnt < bytes; cnt++)
{
if (I2C_rcv8((cnt == (bytes - 1)) ? false : true) == false) { return false; }
if (I2C_rd8((cnt == (bytes - 1)) ? false : true) == false) { return false; }
*data++ = TWDR;
slave->reg_addr++;
}
@ -142,13 +142,13 @@ bool I2C_get_chip_id(I2C_SLAVE * slave, uint8_t * data)
if (I2C_start() == false) { return false; }
if (I2C_sndAddr(&FRAM_ID, I2C_WRITE) == false) { return false; }
if (I2C_snd8(slave->cfg.addr << 1) == false) { return false; }
if (I2C_wr8(slave->cfg.addr << 1) == false) { return false; }
if (I2C_start() == false) { return false; }
if (I2C_sndAddr(&FRAM_ID, I2C_READ) == false) { return false; }
for (uint16_t cnt = 0; cnt < bytes; cnt++)
{
if (I2C_rcv8((cnt == (bytes - 1)) ? false : true) == false) { return false; }
if (I2C_rd8((cnt == (bytes - 1)) ? false : true) == false) { return false; }
*data++ = TWDR;
}