mbed official
mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
Diff: targets/TARGET_STM/stm_spi_api.c
- Revision:
- 167:e84263d55307
- Parent:
- 165:e614a9f1c9e2
- Child:
- 168:9672193075cf
--- a/targets/TARGET_STM/stm_spi_api.c Thu Jun 08 15:02:37 2017 +0100
+++ b/targets/TARGET_STM/stm_spi_api.c Wed Jun 21 17:46:44 2017 +0100
@@ -367,6 +367,21 @@
}
}
+int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length, char *rx_buffer, int rx_length)
+{
+ int total = (tx_length > rx_length) ? tx_length : rx_length;
+
+ for (int i = 0; i < total; i++) {
+ char out = (i < tx_length) ? tx_buffer[i] : 0xff;
+ char in = spi_master_write(obj, out);
+ if (i < rx_length) {
+ rx_buffer[i] = in;
+ }
+ }
+
+ return total;
+}
+
int spi_slave_receive(spi_t *obj)
{
return ((ssp_readable(obj) && !ssp_busy(obj)) ? 1 : 0);
