Gordon Craig
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Diff: targets/TARGET_NUVOTON/TARGET_NUC472/analogin_api.c
- Revision:
- 153:fa9ff456f731
- Parent:
- 149:156823d33999
- Child:
- 161:2cc1468da177
--- a/targets/TARGET_NUVOTON/TARGET_NUC472/analogin_api.c Thu Dec 15 11:48:27 2016 +0000
+++ b/targets/TARGET_NUVOTON/TARGET_NUC472/analogin_api.c Tue Dec 20 17:27:56 2016 +0000
@@ -23,60 +23,26 @@
#include "PeripheralPins.h"
#include "nu_modutil.h"
-struct nu_adc_var {
- uint32_t en_msk;
-};
-
-static struct nu_adc_var adc0_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc1_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc2_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc3_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc4_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc5_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc6_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc7_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc8_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc9_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc10_var = {
- .en_msk = 0
-};
-static struct nu_adc_var adc11_var = {
- .en_msk = 0
-};
+static uint32_t eadc_modinit_mask = 0;
static const struct nu_modinit_s adc_modinit_tab[] = {
- {ADC_0_0, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc0_var},
- {ADC_0_1, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc1_var},
- {ADC_0_2, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc2_var},
- {ADC_0_3, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc3_var},
- {ADC_0_4, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc4_var},
- {ADC_0_5, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc5_var},
- {ADC_0_6, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc6_var},
- {ADC_0_7, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc7_var},
- {ADC_0_8, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc8_var},
- {ADC_0_9, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc9_var},
- {ADC_0_10, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc10_var},
- {ADC_0_11, ADC_MODULE, CLK_CLKSEL1_ADCSEL_HIRC, CLK_CLKDIV0_ADC(1), ADC_RST, ADC_IRQn, &adc11_var}
+ {ADC_0_0, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_0_1, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_0_2, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_0_3, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_0_4, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_0_5, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_0_6, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_0_7, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+
+ {ADC_1_0, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_1_1, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_1_2, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_1_3, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_1_4, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_1_5, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_1_6, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL},
+ {ADC_1_7, EADC_MODULE, CLK_CLKSEL1_ADCSEL_PLL, CLK_CLKDIV0_ADC(5), ADC_RST, EADC0_IRQn, NULL}
};
void analogin_init(analogin_t *obj, PinName pin)
@@ -88,8 +54,10 @@
MBED_ASSERT(modinit != NULL);
MBED_ASSERT(modinit->modname == obj->adc);
+ EADC_T *eadc_base = (EADC_T *) NU_MODBASE(obj->adc);
+
// NOTE: All channels (identified by ADCName) share a ADC module. This reset will also affect other channels of the same ADC module.
- if (! ((struct nu_adc_var *) modinit->var)->en_msk) {
+ if (! eadc_modinit_mask) {
// Reset this module if no channel enabled
SYS_ResetModule(modinit->rsetidx);
@@ -98,33 +66,29 @@
// Enable clock of paired channels
CLK_EnableModuleClock(modinit->clkidx);
- // Power on ADC
- ADC_POWER_ON(ADC);
+ // Make EADC_module ready to convert
+ EADC_Open(eadc_base, 0);
}
- ADC_T *adc_base = (ADC_T *) NU_MODBASE(obj->adc);
uint32_t chn = NU_MODSUBINDEX(obj->adc);
// Wire pinout
pinmap_pinout(pin, PinMap_ADC);
- // Enable channel 0
- ADC_Open(adc_base,
- ADC_INPUT_MODE_SINGLE_END,
- ADC_OPERATION_MODE_SINGLE,
- 1 << chn); // ADC_CH_0_MASK~ADC_CH_11_MASK
+ // Configure the sample module Nmod for analog input channel Nch and software trigger source
+ EADC_ConfigSampleModule(eadc_base, chn, EADC_SOFTWARE_TRIGGER, chn % 8);
- ((struct nu_adc_var *) modinit->var)->en_msk |= 1 << chn;
+ eadc_modinit_mask |= 1 << chn;
}
uint16_t analogin_read_u16(analogin_t *obj)
{
- ADC_T *adc_base = (ADC_T *) NU_MODBASE(obj->adc);
+ EADC_T *eadc_base = (EADC_T *) NU_MODBASE(obj->adc);
uint32_t chn = NU_MODSUBINDEX(obj->adc);
- ADC_START_CONV(adc_base);
- while (adc_base->CTL & ADC_CTL_SWTRG_Msk);
- uint16_t conv_res_12 = ADC_GET_CONVERSION_DATA(adc_base, chn);
+ EADC_START_CONV(eadc_base, 1 << chn);
+ while (EADC_GET_DATA_VALID_FLAG(eadc_base, 1 << chn) != (1 << chn));
+ uint16_t conv_res_12 = EADC_GET_CONV_DATA(eadc_base, chn);
// Just 12 bits are effective. Convert to 16 bits.
// conv_res_12: 0000 b11b10b9b8 b7b6b5b4 b3b2b1b0
// conv_res_16: b11b10b9b8 b7b6b5b4 b3b2b1b0 b11b10b9b8