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path: root/tmk_core/protocol/arm_atsam/adc.c
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-rw-r--r--tmk_core/protocol/arm_atsam/adc.c110
1 files changed, 63 insertions, 47 deletions
diff --git a/tmk_core/protocol/arm_atsam/adc.c b/tmk_core/protocol/arm_atsam/adc.c
index cb5c349b7..1ef1b11d5 100644
--- a/tmk_core/protocol/arm_atsam/adc.c
+++ b/tmk_core/protocol/arm_atsam/adc.c
@@ -24,76 +24,92 @@ uint16_t v_con_2;
uint16_t v_con_1_boot;
uint16_t v_con_2_boot;
-void ADC0_clock_init(void)
-{
+void ADC0_clock_init(void) {
DBGC(DC_ADC0_CLOCK_INIT_BEGIN);
- MCLK->APBDMASK.bit.ADC0_ = 1; //ADC0 Clock Enable
+ MCLK->APBDMASK.bit.ADC0_ = 1; // ADC0 Clock Enable
- GCLK->PCHCTRL[ADC0_GCLK_ID].bit.GEN = GEN_OSC0; //Select generator clock
- GCLK->PCHCTRL[ADC0_GCLK_ID].bit.CHEN = 1; //Enable peripheral clock
+ GCLK->PCHCTRL[ADC0_GCLK_ID].bit.GEN = GEN_OSC0; // Select generator clock
+ GCLK->PCHCTRL[ADC0_GCLK_ID].bit.CHEN = 1; // Enable peripheral clock
DBGC(DC_ADC0_CLOCK_INIT_COMPLETE);
}
-void ADC0_init(void)
-{
+void ADC0_init(void) {
DBGC(DC_ADC0_INIT_BEGIN);
- //MCU
- PORT->Group[1].DIRCLR.reg = 1 << 0; //PB00 as input 5V
- PORT->Group[1].DIRCLR.reg = 1 << 1; //PB01 as input CON2
- PORT->Group[1].DIRCLR.reg = 1 << 2; //PB02 as input CON1
- PORT->Group[1].PMUX[0].bit.PMUXE = 1; //PB00 mux select B ADC 5V
- PORT->Group[1].PMUX[0].bit.PMUXO = 1; //PB01 mux select B ADC CON2
- PORT->Group[1].PMUX[1].bit.PMUXE = 1; //PB02 mux select B ADC CON1
- PORT->Group[1].PINCFG[0].bit.PMUXEN = 1; //PB01 mux ADC Enable 5V
- PORT->Group[1].PINCFG[1].bit.PMUXEN = 1; //PB01 mux ADC Enable CON2
- PORT->Group[1].PINCFG[2].bit.PMUXEN = 1; //PB02 mux ADC Enable CON1
-
- //ADC
+ // MCU
+ PORT->Group[1].DIRCLR.reg = 1 << 0; // PB00 as input 5V
+ PORT->Group[1].DIRCLR.reg = 1 << 1; // PB01 as input CON2
+ PORT->Group[1].DIRCLR.reg = 1 << 2; // PB02 as input CON1
+ PORT->Group[1].PMUX[0].bit.PMUXE = 1; // PB00 mux select B ADC 5V
+ PORT->Group[1].PMUX[0].bit.PMUXO = 1; // PB01 mux select B ADC CON2
+ PORT->Group[1].PMUX[1].bit.PMUXE = 1; // PB02 mux select B ADC CON1
+ PORT->Group[1].PINCFG[0].bit.PMUXEN = 1; // PB01 mux ADC Enable 5V
+ PORT->Group[1].PINCFG[1].bit.PMUXEN = 1; // PB01 mux ADC Enable CON2
+ PORT->Group[1].PINCFG[2].bit.PMUXEN = 1; // PB02 mux ADC Enable CON1
+
+ // ADC
ADC0->CTRLA.bit.SWRST = 1;
- while (ADC0->SYNCBUSY.bit.SWRST) { DBGC(DC_ADC0_SWRST_SYNCING_1); }
- while (ADC0->CTRLA.bit.SWRST) { DBGC(DC_ADC0_SWRST_SYNCING_2); }
-
- //Clock divide
+ while (ADC0->SYNCBUSY.bit.SWRST) {
+ DBGC(DC_ADC0_SWRST_SYNCING_1);
+ }
+ while (ADC0->CTRLA.bit.SWRST) {
+ DBGC(DC_ADC0_SWRST_SYNCING_2);
+ }
+
+ // Clock divide
ADC0->CTRLA.bit.PRESCALER = ADC_CTRLA_PRESCALER_DIV2_Val;
- //Averaging
+ // Averaging
ADC0->AVGCTRL.bit.SAMPLENUM = ADC_AVGCTRL_SAMPLENUM_4_Val;
- while (ADC0->SYNCBUSY.bit.AVGCTRL) { DBGC(DC_ADC0_AVGCTRL_SYNCING_1); }
- if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_1_Val) ADC0->AVGCTRL.bit.ADJRES = 0;
- else if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_2_Val) ADC0->AVGCTRL.bit.ADJRES = 1;
- else if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_4_Val) ADC0->AVGCTRL.bit.ADJRES = 2;
- else if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_8_Val) ADC0->AVGCTRL.bit.ADJRES = 3;
- else ADC0->AVGCTRL.bit.ADJRES = 4;
- while (ADC0->SYNCBUSY.bit.AVGCTRL) { DBGC(DC_ADC0_AVGCTRL_SYNCING_2); }
-
- //Settling
- ADC0->SAMPCTRL.bit.SAMPLEN = 45; //Sampling Time Length: 1-63, 1 ADC CLK per
- while (ADC0->SYNCBUSY.bit.SAMPCTRL) { DBGC(DC_ADC0_SAMPCTRL_SYNCING_1); }
-
- //Load factory calibration data
- ADC0->CALIB.bit.BIASCOMP = ((*(uint32_t *)ADC0_FUSES_BIASCOMP_ADDR) & ADC0_FUSES_BIASCOMP_Msk) >> ADC0_FUSES_BIASCOMP_Pos;
- ADC0->CALIB.bit.BIASR2R = ((*(uint32_t *)ADC0_FUSES_BIASR2R_ADDR) & ADC0_FUSES_BIASR2R_Msk) >> ADC0_FUSES_BIASR2R_Pos;
+ while (ADC0->SYNCBUSY.bit.AVGCTRL) {
+ DBGC(DC_ADC0_AVGCTRL_SYNCING_1);
+ }
+ if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_1_Val)
+ ADC0->AVGCTRL.bit.ADJRES = 0;
+ else if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_2_Val)
+ ADC0->AVGCTRL.bit.ADJRES = 1;
+ else if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_4_Val)
+ ADC0->AVGCTRL.bit.ADJRES = 2;
+ else if (ADC0->AVGCTRL.bit.SAMPLENUM == ADC_AVGCTRL_SAMPLENUM_8_Val)
+ ADC0->AVGCTRL.bit.ADJRES = 3;
+ else
+ ADC0->AVGCTRL.bit.ADJRES = 4;
+ while (ADC0->SYNCBUSY.bit.AVGCTRL) {
+ DBGC(DC_ADC0_AVGCTRL_SYNCING_2);
+ }
+
+ // Settling
+ ADC0->SAMPCTRL.bit.SAMPLEN = 45; // Sampling Time Length: 1-63, 1 ADC CLK per
+ while (ADC0->SYNCBUSY.bit.SAMPCTRL) {
+ DBGC(DC_ADC0_SAMPCTRL_SYNCING_1);
+ }
+
+ // Load factory calibration data
+ ADC0->CALIB.bit.BIASCOMP = ((*(uint32_t *)ADC0_FUSES_BIASCOMP_ADDR) & ADC0_FUSES_BIASCOMP_Msk) >> ADC0_FUSES_BIASCOMP_Pos;
+ ADC0->CALIB.bit.BIASR2R = ((*(uint32_t *)ADC0_FUSES_BIASR2R_ADDR) & ADC0_FUSES_BIASR2R_Msk) >> ADC0_FUSES_BIASR2R_Pos;
ADC0->CALIB.bit.BIASREFBUF = ((*(uint32_t *)ADC0_FUSES_BIASREFBUF_ADDR) & ADC0_FUSES_BIASREFBUF_Msk) >> ADC0_FUSES_BIASREFBUF_Pos;
- //Enable
+ // Enable
ADC0->CTRLA.bit.ENABLE = 1;
- while (ADC0->SYNCBUSY.bit.ENABLE) { DBGC(DC_ADC0_ENABLE_SYNCING_1); }
+ while (ADC0->SYNCBUSY.bit.ENABLE) {
+ DBGC(DC_ADC0_ENABLE_SYNCING_1);
+ }
DBGC(DC_ADC0_INIT_COMPLETE);
}
-uint16_t adc_get(uint8_t muxpos)
-{
+uint16_t adc_get(uint8_t muxpos) {
ADC0->INPUTCTRL.bit.MUXPOS = muxpos;
- while (ADC0->SYNCBUSY.bit.INPUTCTRL) {}
+ while (ADC0->SYNCBUSY.bit.INPUTCTRL) {
+ }
ADC0->SWTRIG.bit.START = 1;
- while (ADC0->SYNCBUSY.bit.SWTRIG) {}
- while (!ADC0->INTFLAG.bit.RESRDY) {}
+ while (ADC0->SYNCBUSY.bit.SWTRIG) {
+ }
+ while (!ADC0->INTFLAG.bit.RESRDY) {
+ }
return ADC0->RESULT.reg;
}
-
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-12-25 17:42:54 +0000