Maxim Integrated
Library for the MAX11300
Dependents: MAX_IOT_KIT MAX_IOT_KIT
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MAX11300
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Maxim Integrated
The MAX11300/01/11/12 are configurable mixed signal integrated circuits. The MAX11300/11 offer a SPI interface while the MAX11301/12 offer an I2C interface. The MAX11300/01 are 20 port devices while the MAX11311/12 are 12 port devices.
This library supports the family of parts by providing member functions that can manipulate the GPIO, ADC, DAC, and analog switches of the device, after it has been configured. For configuration of the device, this library requires a header file that can be generated by the MAX11300/01/11/12 Configuration Software. The configuration software can be found at the following link.
Include the generated MAX113XXHex.h file into your project and update the #include in MAX113XX_Pixi.h.
Diff: MAX113XX_Pixi.cpp
- Revision:
- 13:546dd29b1c7a
- Parent:
- 12:8054ee101bad
- Child:
- 15:fb674d741844
--- a/MAX113XX_Pixi.cpp Tue May 09 19:04:38 2017 +0000
+++ b/MAX113XX_Pixi.cpp Tue May 09 22:06:19 2017 +0000
@@ -161,13 +161,32 @@
//*********************************************************************
MAX113XX_Pixi::CmdResult_e MAX113XX_Pixi::differentialADCRead(Ports_e posPort,
- Ports_e negPort,
- uint16_t &data)
+ int16_t &data)
{
MAX113XX_Pixi::CmdResult_e result = MAX113XX_Pixi::OpFailure;
if(m_device == MAX11300 || m_device == MAX11301) //20 port device
{
+ if(((portConfigDesignVals[posPort] & 0xF000) >> 12) == MAX113XX_Pixi::MODE_8)
+ {
+ uint8_t num_samples = ((portConfigDesignVals[posPort] & port_cfg_00_funcprm_nsamples) >> 5);
+ num_samples = (1 << num_samples);
+
+ while(num_samples--)
+ {
+ m_cnvt = 0;
+ wait_us(1);
+ m_cnvt = 1;
+ wait_us(100);
+ }
+ data = readRegister((adc_data_port_00 + posPort));
+ if(data & 0x0800)
+ {
+ data |= 0xF000;
+ }
+
+ result = MAX113XX_Pixi::Success;
+ }
}
else //12 port device
{
@@ -198,6 +217,36 @@
}
//*********************************************************************
+MAX113XX_Pixi::CmdResult_e MAX113XX_Pixi::dacWriteADCMonitor(Ports_e port,
+ const uint16_t data,
+ uint16_t &adcData)
+{
+ MAX113XX_Pixi::CmdResult_e result = MAX113XX_Pixi::OpFailure;
+
+ if(m_device == MAX11300 || m_device == MAX11301) //20 port device
+ {
+ if(((portConfigDesignVals[port] & 0xF000) >> 12) == MAX113XX_Pixi::MODE_6)
+ {
+ writeRegister((dac_data_port_00 + port) , data);
+
+ m_cnvt = 0;
+ wait_us(1);
+ m_cnvt = 1;
+ wait_us(100);
+
+ adcData = readRegister((adc_data_port_00 + port));
+
+ result = MAX113XX_Pixi::Success;
+ }
+ }
+ else //12 port device
+ {
+ }
+
+ return result;
+}
+
+//*********************************************************************
MAX113XX_Pixi::CmdResult_e MAX113XX_Pixi::gpioRead(Ports_e port, uint8_t &state)
{
MAX113XX_Pixi::CmdResult_e result = MAX113XX_Pixi::OpFailure;
@@ -278,14 +327,80 @@
}
//*********************************************************************
-MAX113XX_Pixi::CmdResult_e MAX113XX_Pixi::setAnalogSwitchState(Ports_e portA,
- Ports_e portB,
+MAX113XX_Pixi::CmdResult_e MAX113XX_Pixi::setAnalogSwitchState(Ports_e lowPort,
bool state)
{
MAX113XX_Pixi::CmdResult_e result = MAX113XX_Pixi::OpFailure;
if(m_device == MAX11300 || m_device == MAX11301) //20 port device
{
+ if(((portConfigDesignVals[lowPort] & 0xF000) >> 12) == MAX113XX_Pixi::MODE_12)
+ {
+ uint16_t data = readRegister(port_cfg_00 + lowPort);
+ if(state)
+ {
+ data = ((data & 0x0FFF) | (MAX113XX_Pixi::MODE_12 << 12));
+ }
+ else
+ {
+ data = ((data & 0x0FFF) | (MAX113XX_Pixi::MODE_0 << 12));
+ }
+ writeRegister((port_cfg_00 + lowPort), data);
+
+ result = MAX113XX_Pixi::Success;
+ }
+ }
+ else //12 port device
+ {
+ }
+
+ return result;
+}
+
+//*********************************************************************
+MAX113XX_Pixi::CmdResult_e MAX113XX_Pixi::readTempSensor(TempSensor_e sensor,
+ float &data)
+{
+ MAX113XX_Pixi::CmdResult_e result = MAX113XX_Pixi::OpFailure;
+ int16_t temp;
+
+ if(m_device == MAX11300 || m_device == MAX11301) //20 port device
+ {
+ switch(sensor)
+ {
+ case Internal:
+ if(device_control_DESIGNVALUE & device_control_TMPCTLINT)
+ {
+ temp = readRegister(tmp_int_data);
+ result = MAX113XX_Pixi::Success;
+ }
+ break;
+
+ case External1:
+ if(device_control_DESIGNVALUE & device_control_TMPCTLEXT0)
+ {
+ temp = readRegister(tmp_ext1_data);
+ result = MAX113XX_Pixi::Success;
+ }
+ break;
+
+ case External2:
+ if(device_control_DESIGNVALUE & device_control_TMPCTLEXT1)
+ {
+ temp = readRegister(tmp_ext2_data);
+ result = MAX113XX_Pixi::Success;
+ }
+ break;
+ };
+
+ if(result == MAX113XX_Pixi::Success)
+ {
+ if(temp & 0x0800)
+ {
+ temp |= 0xF000;
+ }
+ data = (temp/8.0F);
+ }
}
else //12 port device
{