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fix: fix too much line burrs cause cannot remove interruption

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Zhao Ke Ke
2019-11-12 18:41:27 +08:00
parent 330d6792c3
commit 916906d09a
1 changed files with 11 additions and 0 deletions
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11
components/esp8266/driver/spi.c
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@ -653,6 +653,7 @@ static IRAM_ATTR void spi_intr(void *arg)
{ {
spi_host_t host; spi_host_t host;
uint32_t trans_done; uint32_t trans_done;
uint32_t cnt = 0;
if (READ_PERI_REG(DPORT_SPI_INT_STATUS_REG) & DPORT_SPI_INT_STATUS_SPI0) { // DPORT_SPI_INT_STATUS_SPI0 if (READ_PERI_REG(DPORT_SPI_INT_STATUS_REG) & DPORT_SPI_INT_STATUS_SPI0) { // DPORT_SPI_INT_STATUS_SPI0
trans_done = SPI0.slave.val & 0x1F; trans_done = SPI0.slave.val & 0x1F;
SPI0.slave.val &= ~0x3FF; SPI0.slave.val &= ~0x3FF;
@ -660,6 +661,16 @@ static IRAM_ATTR void spi_intr(void *arg)
} else if (READ_PERI_REG(DPORT_SPI_INT_STATUS_REG) & DPORT_SPI_INT_STATUS_SPI1) { // DPORT_SPI_INT_STATUS_SPI1 } else if (READ_PERI_REG(DPORT_SPI_INT_STATUS_REG) & DPORT_SPI_INT_STATUS_SPI1) { // DPORT_SPI_INT_STATUS_SPI1
trans_done = SPI1.slave.val & 0x1F; trans_done = SPI1.slave.val & 0x1F;
SPI1.slave.val &= ~0x1F; SPI1.slave.val &= ~0x1F;
// Hardware issues: We need to wait for the hardware to clear the registers successfully.
while ((SPI1.slave.val & 0x1F) != 0) {
if (cnt >= 50) {
ets_printf("WARNING: waiting too much time, maybe error\r\n");
cnt = 0;
}
SPI1.slave.val &= ~0x1F;
cnt++;
}
host = HSPI_HOST; host = HSPI_HOST;
} else { } else {
return; return;