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different voltage comparison on powerup

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Change-Id: I71b703162219484e43638f1f2f692e9dd554ef55
This commit is contained in:
Kévin Redon
2020-03-26 01:47:12 +01:00
committed by Eric Wild
parent ae28d5a4c5
commit b0d789e09d
1 changed files with 8 additions and 2 deletions
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10
firmware/libcommon/source/mode_cardemu.c
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@@ -62,6 +62,7 @@ struct cardem_inst {
const Pin pin_insert; const Pin pin_insert;
#ifdef DETECT_VCC_BY_ADC #ifdef DETECT_VCC_BY_ADC
uint32_t vcc_uv; uint32_t vcc_uv;
uint32_t vcc_uv_last;
#endif #endif
bool vcc_active; bool vcc_active;
bool vcc_active_last; bool vcc_active_last;
@@ -197,6 +198,7 @@ int card_emu_uart_tx(uint8_t uart_chan, uint8_t byte)
/* FIXME: integrate this with actual irq handler */ /* FIXME: integrate this with actual irq handler */
static void usart_irq_rx(uint8_t inst_num) static void usart_irq_rx(uint8_t inst_num)
{ {
OSMO_ASSERT(inst_num < ARRAY_SIZE(cardem_inst));
Usart *usart = get_usart_by_chan(inst_num); Usart *usart = get_usart_by_chan(inst_num);
struct cardem_inst *ci = &cardem_inst[inst_num]; struct cardem_inst *ci = &cardem_inst[inst_num];
uint32_t csr; uint32_t csr;
@@ -319,10 +321,14 @@ static int card_vcc_adc_init(void)
static void process_vcc_adc(struct cardem_inst *ci) static void process_vcc_adc(struct cardem_inst *ci)
{ {
if (ci->vcc_uv >= VCC_UV_THRESH_3V) if (ci->vcc_uv >= VCC_UV_THRESH_3V &&
ci->vcc_uv_last < VCC_UV_THRESH_3V) {
ci->vcc_active = true; ci->vcc_active = true;
else } else if (ci->vcc_uv < VCC_UV_THRESH_3V &&
ci->vcc_uv_last >= VCC_UV_THRESH_3V) {
ci->vcc_active = false; ci->vcc_active = false;
}
ci->vcc_uv_last = ci->vcc_uv;
} }
void ADC_IrqHandler(void) void ADC_IrqHandler(void)